snapshot ahead of tests

annotation_series.go

@@ -60,10 +60,10 @@ func (as AnnotationSeries) Measure(r Renderer, canvasBox Box, xrange, yrange Ran
 			lx := canvasBox.Left + xrange.Translate(a.XValue)
 			ly := canvasBox.Bottom - yrange.Translate(a.YValue)
 			ab := Draw.MeasureAnnotation(r, canvasBox, style, lx, ly, a.Label)
-			box.Top = MinInt(box.Top, ab.Top)
+			box.Top = Min(box.Top, ab.Top)
-			box.Left = MinInt(box.Left, ab.Left)
+			box.Left = Min(box.Left, ab.Left)
-			box.Right = MaxInt(box.Right, ab.Right)
+			box.Right = Max(box.Right, ab.Right)
-			box.Bottom = MaxInt(box.Bottom, ab.Bottom)
+			box.Bottom = Max(box.Bottom, ab.Bottom)
 		}
 	}
 	return box

array.go

@@ -1,24 +1,24 @@
 package chart
 
 var (
-	_ Sequence = (*Array)(nil)
+	_ Sequence[int] = (*array[int])(nil)
 )
 
 // NewArray returns a new array from a given set of values.
 // Array implements Sequence, which allows it to be used with the sequence helpers.
-func NewArray(values ...float64) Array {
+func Array[A any](values ...A) Sequence[A] {
-	return Array(values)
+	return array[A](values)
 }
 
 // Array is a wrapper for an array of floats that implements `ValuesProvider`.
-type Array []float64
+type array[A any] []A
 
 // Len returns the value provider length.
-func (a Array) Len() int {
+func (a array[A]) Len() int {
 	return len(a)
 }
 
 // GetValue returns the value at a given index.
-func (a Array) GetValue(index int) float64 {
+func (a array[A]) GetValue(index int) A {
 	return a[index]
 }

bar_chart.go

@@ -409,7 +409,7 @@ func (bc BarChart) getAdjustedCanvasBox(r Renderer, canvasBox Box, yrange Range,
 				lines := Text.WrapFit(r, bar.Label, barLabelBox.Width(), axisStyle)
 				linesBox := Text.MeasureLines(r, lines, axisStyle)
 
-				xaxisHeight = MinInt(linesBox.Height()+(2*DefaultXAxisMargin), xaxisHeight)
+				xaxisHeight = Min(linesBox.Height()+(2*DefaultXAxisMargin), xaxisHeight)
 			}
 		}
 
@@ -476,7 +476,7 @@ func (bc BarChart) styleDefaultsTitle() Style {
 }
 
 func (bc BarChart) getTitleFontSize() float64 {
-	effectiveDimension := MinInt(bc.GetWidth(), bc.GetHeight())
+	effectiveDimension := Min(bc.GetWidth(), bc.GetHeight())
 	if effectiveDimension >= 2048 {
 		return 48
 	} else if effectiveDimension >= 1024 {

bollinger_band_series.go

@@ -20,7 +20,7 @@ type BollingerBandsSeries struct {
 	K           float64
 	InnerSeries ValuesProvider
 
-	valueBuffer *ValueBuffer
+	valueBuffer *ValueBuffer[float64]
 }
 
 // GetName returns the name of the time series.
@@ -70,7 +70,7 @@ func (bbs *BollingerBandsSeries) GetBoundedValues(index int) (x, y1, y2 float64)
 		return
 	}
 	if bbs.valueBuffer == nil || index == 0 {
-		bbs.valueBuffer = NewValueBufferWithCapacity(bbs.GetPeriod())
+		bbs.valueBuffer = NewValueBufferWithCapacity[float64](bbs.GetPeriod())
 	}
 	if bbs.valueBuffer.Len() >= bbs.GetPeriod() {
 		bbs.valueBuffer.Dequeue()
@@ -79,8 +79,8 @@ func (bbs *BollingerBandsSeries) GetBoundedValues(index int) (x, y1, y2 float64)
 	bbs.valueBuffer.Enqueue(py)
 	x = px
 
-	ay := Seq{bbs.valueBuffer}.Average()
+	ay := Seq[float64]{bbs.valueBuffer}.Average()
-	std := Seq{bbs.valueBuffer}.StdDev()
+	std := Seq[float64]{bbs.valueBuffer}.StdDev()
 
 	y1 = ay + (bbs.GetK() * std)
 	y2 = ay - (bbs.GetK() * std)
@@ -99,15 +99,15 @@ func (bbs *BollingerBandsSeries) GetBoundedLastValues() (x, y1, y2 float64) {
 		startAt = 0
 	}
 
-	vb := NewValueBufferWithCapacity(period)
+	vb := NewValueBufferWithCapacity[float64](period)
 	for index := startAt; index < seriesLength; index++ {
 		xn, yn := bbs.InnerSeries.GetValues(index)
 		vb.Enqueue(yn)
 		x = xn
 	}
 
-	ay := Seq{vb}.Average()
+	ay := Seq[float64]{vb}.Average()
-	std := Seq{vb}.StdDev()
+	std := Seq[float64]{vb}.StdDev()
 
 	y1 = ay + (bbs.GetK() * std)
 	y2 = ay - (bbs.GetK() * std)

box.go

@@ -89,12 +89,12 @@ func (b Box) GetBottom(defaults ...int) int {
 
 // Width returns the width
 func (b Box) Width() int {
-	return AbsInt(b.Right - b.Left)
+	return Abs(b.Right - b.Left)
 }
 
 // Height returns the height
 func (b Box) Height() int {
-	return AbsInt(b.Bottom - b.Top)
+	return Abs(b.Bottom - b.Top)
 }
 
 // Center returns the center of the box
@@ -146,10 +146,10 @@ func (b Box) Equals(other Box) bool {
 // Grow grows a box based on another box.
 func (b Box) Grow(other Box) Box {
 	return Box{
-		Top:    MinInt(b.Top, other.Top),
+		Top:    Min(b.Top, other.Top),
-		Left:   MinInt(b.Left, other.Left),
+		Left:   Min(b.Left, other.Left),
-		Right:  MaxInt(b.Right, other.Right),
+		Right:  Max(b.Right, other.Right),
-		Bottom: MaxInt(b.Bottom, other.Bottom),
+		Bottom: Max(b.Bottom, other.Bottom),
 	}
 }
 
@@ -220,10 +220,10 @@ func (b Box) Fit(other Box) Box {
 func (b Box) Constrain(other Box) Box {
 	newBox := b.Clone()
 
-	newBox.Top = MaxInt(newBox.Top, other.Top)
+	newBox.Top = Max(newBox.Top, other.Top)
-	newBox.Left = MaxInt(newBox.Left, other.Left)
+	newBox.Left = Max(newBox.Left, other.Left)
-	newBox.Right = MinInt(newBox.Right, other.Right)
+	newBox.Right = Min(newBox.Right, other.Right)
-	newBox.Bottom = MinInt(newBox.Bottom, other.Bottom)
+	newBox.Bottom = Min(newBox.Bottom, other.Bottom)
 
 	return newBox
 }
@@ -262,36 +262,36 @@ type BoxCorners struct {
 // Box return the BoxCorners as a regular box.
 func (bc BoxCorners) Box() Box {
 	return Box{
-		Top:    MinInt(bc.TopLeft.Y, bc.TopRight.Y),
+		Top:    Min(bc.TopLeft.Y, bc.TopRight.Y),
-		Left:   MinInt(bc.TopLeft.X, bc.BottomLeft.X),
+		Left:   Min(bc.TopLeft.X, bc.BottomLeft.X),
-		Right:  MaxInt(bc.TopRight.X, bc.BottomRight.X),
+		Right:  Max(bc.TopRight.X, bc.BottomRight.X),
-		Bottom: MaxInt(bc.BottomLeft.Y, bc.BottomRight.Y),
+		Bottom: Max(bc.BottomLeft.Y, bc.BottomRight.Y),
 	}
 }
 
 // Width returns the width
 func (bc BoxCorners) Width() int {
-	minLeft := MinInt(bc.TopLeft.X, bc.BottomLeft.X)
+	minLeft := Min(bc.TopLeft.X, bc.BottomLeft.X)
-	maxRight := MaxInt(bc.TopRight.X, bc.BottomRight.X)
+	maxRight := Max(bc.TopRight.X, bc.BottomRight.X)
 	return maxRight - minLeft
 }
 
 // Height returns the height
 func (bc BoxCorners) Height() int {
-	minTop := MinInt(bc.TopLeft.Y, bc.TopRight.Y)
+	minTop := Min(bc.TopLeft.Y, bc.TopRight.Y)
-	maxBottom := MaxInt(bc.BottomLeft.Y, bc.BottomRight.Y)
+	maxBottom := Max(bc.BottomLeft.Y, bc.BottomRight.Y)
 	return maxBottom - minTop
 }
 
 // Center returns the center of the box
 func (bc BoxCorners) Center() (x, y int) {
 
-	left := MeanInt(bc.TopLeft.X, bc.BottomLeft.X)
+	left := Mean(bc.TopLeft.X, bc.BottomLeft.X)
-	right := MeanInt(bc.TopRight.X, bc.BottomRight.X)
+	right := Mean(bc.TopRight.X, bc.BottomRight.X)
 	x = ((right - left) >> 1) + left
 
-	top := MeanInt(bc.TopLeft.Y, bc.TopRight.Y)
+	top := Mean(bc.TopLeft.Y, bc.TopRight.Y)
-	bottom := MeanInt(bc.BottomLeft.Y, bc.BottomRight.Y)
+	bottom := Mean(bc.BottomLeft.Y, bc.BottomRight.Y)
 	y = ((bottom - top) >> 1) + top
 
 	return

donut_chart.go

@@ -123,7 +123,7 @@ func (pc DonutChart) drawTitle(r Renderer) {
 
 func (pc DonutChart) drawSlices(r Renderer, canvasBox Box, values []Value) {
 	cx, cy := canvasBox.Center()
-	diameter := MinInt(canvasBox.Width(), canvasBox.Height())
+	diameter := Min(canvasBox.Width(), canvasBox.Height())
 	radius := float64(diameter>>1) / 1.1
 	labelRadius := (radius * 2.83) / 3.0
 
@@ -195,7 +195,7 @@ func (pc DonutChart) getDefaultCanvasBox() Box {
 }
 
 func (pc DonutChart) getCircleAdjustedCanvasBox(canvasBox Box) Box {
-	circleDiameter := MinInt(canvasBox.Width(), canvasBox.Height())
+	circleDiameter := Min(canvasBox.Width(), canvasBox.Height())
 
 	square := Box{
 		Right:  circleDiameter,
@@ -241,7 +241,7 @@ func (pc DonutChart) styleDonutChartValue(index int) Style {
 }
 
 func (pc DonutChart) getScaledFontSize() float64 {
-	effectiveDimension := MinInt(pc.GetWidth(), pc.GetHeight())
+	effectiveDimension := Min(pc.GetWidth(), pc.GetHeight())
 	if effectiveDimension >= 2048 {
 		return 48.0
 	} else if effectiveDimension >= 1024 {
@@ -280,7 +280,7 @@ func (pc DonutChart) styleDefaultsTitle() Style {
 }
 
 func (pc DonutChart) getTitleFontSize() float64 {
-	effectiveDimension := MinInt(pc.GetWidth(), pc.GetHeight())
+	effectiveDimension := Min(pc.GetWidth(), pc.GetHeight())
 	if effectiveDimension >= 2048 {
 		return 48
 	} else if effectiveDimension >= 1024 {

draw.go

@@ -38,8 +38,8 @@ func (d draw) LineSeries(r Renderer, canvasBox Box, xrange, yrange Range, style
 			y = cb - yrange.Translate(vy)
 			r.LineTo(x, y)
 		}
-		r.LineTo(x, MinInt(cb, cb-yv0))
+		r.LineTo(x, Min(cb, cb-yv0))
-		r.LineTo(x0, MinInt(cb, cb-yv0))
+		r.LineTo(x0, Min(cb, cb-yv0))
 		r.LineTo(x0, y0)
 		r.Fill()
 	}

examples/custom_padding/main.go

@@ -22,8 +22,8 @@ func main() {
 		},
 		Series: []chart.Series{
 			chart.ContinuousSeries{
-				XValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),
+				XValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),
-				YValues: chart.Seq{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(100).WithMax(512)}.Values(),
+				YValues: chart.Seq[float64]{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(100).WithMax(512)}.Values(),
 			},
 		},
 	}

examples/linear_regression/main.go

@@ -17,8 +17,8 @@ func main() {
 
 	mainSeries := chart.ContinuousSeries{
 		Name:    "A test series",
-		XValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),        //generates a []float64 from 1.0 to 100.0 in 1.0 step increments, or 100 elements.
+		XValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),        //generates a []float64 from 1.0 to 100.0 in 1.0 step increments, or 100 elements.
-		YValues: chart.Seq{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(0).WithMax(100)}.Values(), //generates a []float64 randomly from 0 to 100 with 100 elements.
+		YValues: chart.Seq[float64]{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(0).WithMax(100)}.Values(), //generates a []float64 randomly from 0 to 100 with 100 elements.
 	}
 
 	// note we create a LinearRegressionSeries series by assignin the inner series.

examples/min_max/main.go

@@ -11,8 +11,8 @@ import (
 func main() {
 	mainSeries := chart.ContinuousSeries{
 		Name:    "A test series",
-		XValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),
+		XValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),
-		YValues: chart.Seq{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(50).WithMax(150)}.Values(),
+		YValues: chart.Seq[float64]{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(50).WithMax(150)}.Values(),
 	}
 
 	minSeries := &chart.MinSeries{

examples/poly_regression/main.go

@@ -17,8 +17,8 @@ func main() {
 
 	mainSeries := chart.ContinuousSeries{
 		Name:    "A test series",
-		XValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),        //generates a []float64 from 1.0 to 100.0 in 1.0 step increments, or 100 elements.
+		XValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),        //generates a []float64 from 1.0 to 100.0 in 1.0 step increments, or 100 elements.
-		YValues: chart.Seq{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(0).WithMax(100)}.Values(), //generates a []float64 randomly from 0 to 100 with 100 elements.
+		YValues: chart.Seq[float64]{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(0).WithMax(100)}.Values(), //generates a []float64 randomly from 0 to 100 with 100 elements.
 	}
 
 	polyRegSeries := &chart.PolynomialRegressionSeries{

examples/scatter/main.go

@@ -24,8 +24,8 @@ func drawChart(res http.ResponseWriter, req *http.Request) {
 					DotWidth:         5,
 					DotColorProvider: viridisByY,
 				},
-				XValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(0).WithEnd(127)}.Values(),
+				XValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(0).WithEnd(127)}.Values(),
-				YValues: chart.Seq{Sequence: chart.NewRandomSequence().WithLen(128).WithMin(0).WithMax(1024)}.Values(),
+				YValues: chart.Seq[float64]{Sequence: chart.NewRandomSequence().WithLen(128).WithMin(0).WithMax(1024)}.Values(),
 			},
 		},
 	}
@@ -49,8 +49,8 @@ func unit(res http.ResponseWriter, req *http.Request) {
 		},
 		Series: []chart.Series{
 			chart.ContinuousSeries{
-				XValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(0).WithEnd(4)}.Values(),
+				XValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(0).WithEnd(4)}.Values(),
-				YValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(0).WithEnd(4)}.Values(),
+				YValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(0).WithEnd(4)}.Values(),
 			},
 		},
 	}

examples/simple_moving_average/main.go

@@ -11,8 +11,8 @@ import (
 func main() {
 	mainSeries := chart.ContinuousSeries{
 		Name:    "A test series",
-		XValues: chart.Seq{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),        //generates a []float64 from 1.0 to 100.0 in 1.0 step increments, or 100 elements.
+		XValues: chart.Seq[float64]{Sequence: chart.NewLinearSequence().WithStart(1.0).WithEnd(100.0)}.Values(),        //generates a []float64 from 1.0 to 100.0 in 1.0 step increments, or 100 elements.
-		YValues: chart.Seq{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(0).WithMax(100)}.Values(), //generates a []float64 randomly from 0 to 100 with 100 elements.
+		YValues: chart.Seq[float64]{Sequence: chart.NewRandomSequence().WithLen(100).WithMin(0).WithMax(100)}.Values(), //generates a []float64 randomly from 0 to 100 with 100 elements.
 	}
 
 	// note we create a SimpleMovingAverage series by assignin the inner series.

go.mod

@@ -1,8 +1,8 @@
 module github.com/wcharczuk/go-chart/v2
 
-go 1.15
+go 1.18
 
 require (
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
-	golang.org/x/image v0.0.0-20200927104501-e162460cd6b5
+	golang.org/x/image v0.0.0-20211028202545-6944b10bf410
 )

go.sum

@@ -1,5 +1,6 @@
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
-golang.org/x/image v0.0.0-20200927104501-e162460cd6b5 h1:QelT11PB4FXiDEXucrfNckHoFxwt8USGY1ajP1ZF5lM=
+golang.org/x/image v0.0.0-20211028202545-6944b10bf410 h1:hTftEOvwiOq2+O8k2D5/Q7COC7k5Qcrgc2TFURJYnvQ=
-golang.org/x/image v0.0.0-20200927104501-e162460cd6b5/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
+golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

legend.go

@@ -68,7 +68,7 @@ func Legend(c *Chart, userDefaults ...Style) Renderable {
 				}
 				legendContent.Bottom += tb.Height()
 				right := legendContent.Left + tb.Width() + lineTextGap + lineLengthMinimum
-				legendContent.Right = MaxInt(legendContent.Right, right)
+				legendContent.Right = Max(legendContent.Right, right)
 				labelCount++
 			}
 		}
@@ -163,8 +163,8 @@ func LegendThin(c *Chart, userDefaults ...Style) Renderable {
 		for x := 0; x < len(labels); x++ {
 			if len(labels[x]) > 0 {
 				textBox = r.MeasureText(labels[x])
-				textHeight = MaxInt(textBox.Height(), textHeight)
+				textHeight = Max(textBox.Height(), textHeight)
-				textWidth = MaxInt(textBox.Width(), textWidth)
+				textWidth = Max(textBox.Width(), textWidth)
 			}
 		}
 
@@ -280,7 +280,7 @@ func LegendLeft(c *Chart, userDefaults ...Style) Renderable {
 				}
 				legendContent.Bottom += tb.Height()
 				right := legendContent.Left + tb.Width() + lineTextGap + lineLengthMinimum
-				legendContent.Right = MaxInt(legendContent.Right, right)
+				legendContent.Right = Max(legendContent.Right, right)
 				labelCount++
 			}
 		}

linear_regression_series.go

@@ -59,7 +59,7 @@ func (lrs LinearRegressionSeries) GetYAxis() YAxisType {
 
 // Len returns the number of elements in the series.
 func (lrs LinearRegressionSeries) Len() int {
-	return MinInt(lrs.GetLimit(), lrs.InnerSeries.Len()-lrs.GetOffset())
+	return Min(lrs.GetLimit(), lrs.InnerSeries.Len()-lrs.GetOffset())
 }
 
 // GetLimit returns the window size.
@@ -74,7 +74,7 @@ func (lrs LinearRegressionSeries) GetLimit() int {
 func (lrs LinearRegressionSeries) GetEndIndex() int {
 	windowEnd := lrs.GetOffset() + lrs.GetLimit()
 	innerSeriesLastIndex := lrs.InnerSeries.Len() - 1
-	return MinInt(windowEnd, innerSeriesLastIndex)
+	return Min(windowEnd, innerSeriesLastIndex)
 }
 
 // GetOffset returns the data offset.
@@ -94,7 +94,7 @@ func (lrs *LinearRegressionSeries) GetValues(index int) (x, y float64) {
 		lrs.computeCoefficients()
 	}
 	offset := lrs.GetOffset()
-	effectiveIndex := MinInt(index+offset, lrs.InnerSeries.Len())
+	effectiveIndex := Min(index+offset, lrs.InnerSeries.Len())
 	x, y = lrs.InnerSeries.GetValues(effectiveIndex)
 	y = (lrs.m * lrs.normalize(x)) + lrs.b
 	return
@@ -161,14 +161,14 @@ func (lrs *LinearRegressionSeries) computeCoefficients() {
 
 	p := float64(endIndex - startIndex)
 
-	xvalues := NewValueBufferWithCapacity(lrs.Len())
+	xvalues := NewValueBufferWithCapacity[float64](lrs.Len())
 	for index := startIndex; index < endIndex; index++ {
 		x, _ := lrs.InnerSeries.GetValues(index)
 		xvalues.Enqueue(x)
 	}
 
-	lrs.avgx = Seq{xvalues}.Average()
+	lrs.avgx = Seq[float64]{xvalues}.Average()
-	lrs.stddevx = Seq{xvalues}.StdDev()
+	lrs.stddevx = Seq[float64]{xvalues}.StdDev()
 
 	var sumx, sumy, sumxx, sumxy float64
 	for index := startIndex; index < endIndex; index++ {

linear_sequence.go

@@ -2,12 +2,12 @@ package chart
 
 // LinearRange returns an array of values representing the range from start to end, incremented by 1.0.
 func LinearRange(start, end float64) []float64 {
-	return Seq{NewLinearSequence().WithStart(start).WithEnd(end).WithStep(1.0)}.Values()
+	return Seq[float64]{NewLinearSequence().WithStart(start).WithEnd(end).WithStep(1.0)}.Values()
 }
 
 // LinearRangeWithStep returns the array values of a linear seq with a given start, end and optional step.
 func LinearRangeWithStep(start, end, step float64) []float64 {
-	return Seq{NewLinearSequence().WithStart(start).WithEnd(end).WithStep(step)}.Values()
+	return Seq[float64]{NewLinearSequence().WithStart(start).WithEnd(end).WithStep(step)}.Values()
 }
 
 // NewLinearSequence returns a new linear generator.

linear_sequence_test.go

@@ -0,0 +1,48 @@
+package chart
+
+import (
+	"testing"
+
+	"github.com/wcharczuk/go-chart/v2/testutil"
+)
+
+func Test_LinearRange(t *testing.T) {
+	// replaced new assertions helper
+
+	values := LinearRange(1, 100)
+	testutil.AssertLen(t, values, 100)
+	testutil.AssertEqual(t, 1, values[0])
+	testutil.AssertEqual(t, 100, values[99])
+}
+
+func Test_LinearRange_WithStep(t *testing.T) {
+	// replaced new assertions helper
+
+	values := LinearRangeWithStep(0, 100, 5)
+	testutil.AssertEqual(t, 100, values[20])
+	testutil.AssertLen(t, values, 21)
+}
+
+func Test_LinearRange_reversed(t *testing.T) {
+	// replaced new assertions helper
+
+	values := LinearRange(10.0, 1.0)
+	testutil.AssertEqual(t, 10, len(values))
+	testutil.AssertEqual(t, 10.0, values[0])
+	testutil.AssertEqual(t, 1.0, values[9])
+}
+
+func Test_LinearSequence_Regression(t *testing.T) {
+	// replaced new assertions helper
+
+	// note; this assumes a 1.0 step is implicitly set in the constructor.
+	linearProvider := NewLinearSequence().WithStart(1.0).WithEnd(100.0)
+	testutil.AssertEqual(t, 1, linearProvider.Start())
+	testutil.AssertEqual(t, 100, linearProvider.End())
+	testutil.AssertEqual(t, 100, linearProvider.Len())
+
+	values := Seq[float64]{linearProvider}.Values()
+	testutil.AssertLen(t, values, 100)
+	testutil.AssertEqual(t, 1.0, values[0])
+	testutil.AssertEqual(t, 100, values[99])
+}

mathutil.go

@@ -1,6 +1,9 @@
 package chart
 
-import "math"
+import (
+	"constraints"
+	"math"
+)
 
 const (
 	_pi   = math.Pi
@@ -17,14 +20,14 @@ const (
 )
 
 // MinMax returns the minimum and maximum of a given set of values.
-func MinMax(values ...float64) (min, max float64) {
+func MinMax[A constraints.Ordered](values ...A) (min, max A) {
 	if len(values) == 0 {
 		return
 	}
 
 	max = values[0]
 	min = values[0]
-	var value float64
+	var value A
 	for index := 1; index < len(values); index++ {
 		value = values[index]
 		if value < min {
@@ -38,13 +41,13 @@ func MinMax(values ...float64) (min, max float64) {
 }
 
 // MinInt returns the minimum int.
-func MinInt(values ...int) (min int) {
+func Min[A constraints.Ordered](values ...A) (min A) {
 	if len(values) == 0 {
 		return
 	}
 
 	min = values[0]
-	var value int
+	var value A
 	for index := 1; index < len(values); index++ {
 		value = values[index]
 		if value < min {
@@ -55,13 +58,13 @@ func MinInt(values ...int) (min int) {
 }
 
 // MaxInt returns the maximum int.
-func MaxInt(values ...int) (max int) {
+func Max[A constraints.Ordered](values ...A) (max A) {
 	if len(values) == 0 {
 		return
 	}
 
 	max = values[0]
-	var value int
+	var value A
 	for index := 1; index < len(values); index++ {
 		value = values[index]
 		if value > max {
@@ -71,9 +74,15 @@ func MaxInt(values ...int) (max int) {
 	return
 }
 
+// Number is a type that is a number.
+type Number interface {
+	~int | ~uint | ~float64
+}
+
 // AbsInt returns the absolute value of an int.
-func AbsInt(value int) int {
+func Abs[A Number](value A) A {
-	if value < 0 {
+	var zero A
+	if value < zero {
 		return -value
 	}
 	return value
@@ -173,18 +182,12 @@ func Normalize(values ...float64) []float64 {
 }
 
 // Mean returns the mean of a set of values
-func Mean(values ...float64) float64 {
+func Mean[A Number](values ...A) A {
-	return Sum(values...) / float64(len(values))
+	return Sum(values...) / A(len(values))
-}
-
-// MeanInt returns the mean of a set of integer values.
-func MeanInt(values ...int) int {
-	return SumInt(values...) / len(values)
 }
 
 // Sum sums a set of values.
-func Sum(values ...float64) float64 {
+func Sum[A Number](values ...A) (total A) {
-	var total float64
 	for _, v := range values {
 		total += v
 	}

matrix/matrix.go

@@ -292,7 +292,7 @@ func (m *Matrix) Copy() *Matrix {
 // DiagonalVector returns a vector from the diagonal of a matrix.
 func (m *Matrix) DiagonalVector() Vector {
 	rows, cols := m.Size()
-	rank := minInt(rows, cols)
+	rank := Min(rows, cols)
 	values := make([]float64, rank)
 
 	for index := 0; index < rank; index++ {
@@ -304,7 +304,7 @@ func (m *Matrix) DiagonalVector() Vector {
 // Diagonal returns a matrix from the diagonal of a matrix.
 func (m *Matrix) Diagonal() *Matrix {
 	rows, cols := m.Size()
-	rank := minInt(rows, cols)
+	rank := Min(rows, cols)
 	m2 := New(rank, rank)
 
 	for index := 0; index < rank; index++ {

matrix/util.go

@@ -5,7 +5,7 @@ import (
 	"strconv"
 )
 
-func minInt(values ...int) int {
+func Min(values ...int) int {
 	min := math.MaxInt32
 
 	for x := 0; x < len(values); x++ {
@@ -16,7 +16,7 @@ func minInt(values ...int) int {
 	return min
 }
 
-func maxInt(values ...int) int {
+func Max(values ...int) int {
 	max := math.MinInt32
 
 	for x := 0; x < len(values); x++ {

pie_chart.go

@@ -123,7 +123,7 @@ func (pc PieChart) drawTitle(r Renderer) {
 
 func (pc PieChart) drawSlices(r Renderer, canvasBox Box, values []Value) {
 	cx, cy := canvasBox.Center()
-	diameter := MinInt(canvasBox.Width(), canvasBox.Height())
+	diameter := Min(canvasBox.Width(), canvasBox.Height())
 	radius := float64(diameter >> 1)
 	labelRadius := (radius * 2.0) / 3.0
 
@@ -191,7 +191,7 @@ func (pc PieChart) getDefaultCanvasBox() Box {
 }
 
 func (pc PieChart) getCircleAdjustedCanvasBox(canvasBox Box) Box {
-	circleDiameter := MinInt(canvasBox.Width(), canvasBox.Height())
+	circleDiameter := Min(canvasBox.Width(), canvasBox.Height())
 
 	square := Box{
 		Right:  circleDiameter,
@@ -237,7 +237,7 @@ func (pc PieChart) stylePieChartValue(index int) Style {
 }
 
 func (pc PieChart) getScaledFontSize() float64 {
-	effectiveDimension := MinInt(pc.GetWidth(), pc.GetHeight())
+	effectiveDimension := Min(pc.GetWidth(), pc.GetHeight())
 	if effectiveDimension >= 2048 {
 		return 48.0
 	} else if effectiveDimension >= 1024 {
@@ -276,7 +276,7 @@ func (pc PieChart) styleDefaultsTitle() Style {
 }
 
 func (pc PieChart) getTitleFontSize() float64 {
-	effectiveDimension := MinInt(pc.GetWidth(), pc.GetHeight())
+	effectiveDimension := Min(pc.GetWidth(), pc.GetHeight())
 	if effectiveDimension >= 2048 {
 		return 48
 	} else if effectiveDimension >= 1024 {

polynomial_regression_series.go

@@ -46,7 +46,7 @@ func (prs PolynomialRegressionSeries) GetYAxis() YAxisType {
 
 // Len returns the number of elements in the series.
 func (prs PolynomialRegressionSeries) Len() int {
-	return MinInt(prs.GetLimit(), prs.InnerSeries.Len()-prs.GetOffset())
+	return Min(prs.GetLimit(), prs.InnerSeries.Len()-prs.GetOffset())
 }
 
 // GetLimit returns the window size.
@@ -61,7 +61,7 @@ func (prs PolynomialRegressionSeries) GetLimit() int {
 func (prs PolynomialRegressionSeries) GetEndIndex() int {
 	windowEnd := prs.GetOffset() + prs.GetLimit()
 	innerSeriesLastIndex := prs.InnerSeries.Len() - 1
-	return MinInt(windowEnd, innerSeriesLastIndex)
+	return Min(windowEnd, innerSeriesLastIndex)
 }
 
 // GetOffset returns the data offset.
@@ -101,7 +101,7 @@ func (prs *PolynomialRegressionSeries) GetValues(index int) (x, y float64) {
 	}
 
 	offset := prs.GetOffset()
-	effectiveIndex := MinInt(index+offset, prs.InnerSeries.Len())
+	effectiveIndex := Min(index+offset, prs.InnerSeries.Len())
 	x, y = prs.InnerSeries.GetValues(effectiveIndex)
 	y = prs.apply(x)
 	return

random_sequence.go

@@ -7,17 +7,17 @@ import (
 )
 
 var (
-	_ Sequence = (*RandomSeq)(nil)
+	_ Sequence[float64] = (*RandomSeq)(nil)
 )
 
 // RandomValues returns an array of random values.
 func RandomValues(count int) []float64 {
-	return Seq{NewRandomSequence().WithLen(count)}.Values()
+	return Seq[float64]{NewRandomSequence().WithLen(count)}.Values()
 }
 
 // RandomValuesWithMax returns an array of random values with a given average.
 func RandomValuesWithMax(count int, max float64) []float64 {
-	return Seq{NewRandomSequence().WithMax(max).WithLen(count)}.Values()
+	return Seq[float64]{NewRandomSequence().WithMax(max).WithLen(count)}.Values()
 }
 
 // NewRandomSequence creates a new random seq.

seq.go

@@ -5,29 +5,18 @@ import (
 	"sort"
 )
 
-// ValueSequence returns a sequence for a given values set.
-func ValueSequence(values ...float64) Seq {
-	return Seq{NewArray(values...)}
-}
-
-// Sequence is a provider for values for a seq.
-type Sequence interface {
-	Len() int
-	GetValue(int) float64
-}
-
 // Seq is a utility wrapper for seq providers.
-type Seq struct {
+type Seq[A Number] struct {
-	Sequence
+	Sequence[A]
 }
 
 // Values enumerates the seq into a slice.
-func (s Seq) Values() (output []float64) {
+func (s Seq[A]) Values() (output []A) {
 	if s.Len() == 0 {
 		return
 	}
 
-	output = make([]float64, s.Len())
+	output = make([]A, s.Len())
 	for i := 0; i < s.Len(); i++ {
 		output[i] = s.GetValue(i)
 	}
@@ -35,7 +24,7 @@ func (s Seq) Values() (output []float64) {
 }
 
 // Each applies the `mapfn` to all values in the value provider.
-func (s Seq) Each(mapfn func(int, float64)) {
+func (s Seq[A]) Each(mapfn func(int, A)) {
 	for i := 0; i < s.Len(); i++ {
 		mapfn(i, s.GetValue(i))
 	}
@@ -43,55 +32,56 @@ func (s Seq) Each(mapfn func(int, float64)) {
 
 // Map applies the `mapfn` to all values in the value provider,
 // returning a new seq.
-func (s Seq) Map(mapfn func(i int, v float64) float64) Seq {
+func (s Seq[A]) Map(mapfn func(i int, v A) A) Seq[A] {
-	output := make([]float64, s.Len())
+	output := make([]A, s.Len())
 	for i := 0; i < s.Len(); i++ {
 		mapfn(i, s.GetValue(i))
 	}
-	return Seq{Array(output)}
+	return Seq[A]{Sequence: Array(output...)}
 }
 
 // FoldLeft collapses a seq from left to right.
-func (s Seq) FoldLeft(mapfn func(i int, v0, v float64) float64) (v0 float64) {
+func (s Seq[A]) FoldLeft(mapfn func(i int, v0, v A) A) (output A) {
 	if s.Len() == 0 {
-		return 0
+		return
 	}
 
 	if s.Len() == 1 {
 		return s.GetValue(0)
 	}
 
-	v0 = s.GetValue(0)
+	output = s.GetValue(0)
 	for i := 1; i < s.Len(); i++ {
-		v0 = mapfn(i, v0, s.GetValue(i))
+		output = mapfn(i, output, s.GetValue(i))
 	}
 	return
 }
 
 // FoldRight collapses a seq from right to left.
-func (s Seq) FoldRight(mapfn func(i int, v0, v float64) float64) (v0 float64) {
+func (s Seq[A]) FoldRight(mapfn func(i int, v0, v A) A) (output A) {
 	if s.Len() == 0 {
-		return 0
+		return
 	}
 
 	if s.Len() == 1 {
 		return s.GetValue(0)
 	}
 
-	v0 = s.GetValue(s.Len() - 1)
+	output = s.GetValue(s.Len() - 1)
 	for i := s.Len() - 2; i >= 0; i-- {
-		v0 = mapfn(i, v0, s.GetValue(i))
+		output = mapfn(i, output, s.GetValue(i))
 	}
 	return
 }
 
 // Min returns the minimum value in the seq.
-func (s Seq) Min() float64 {
+func (s Seq[A]) Min() (min A) {
 	if s.Len() == 0 {
-		return 0
+		return
 	}
-	min := s.GetValue(0)
+
-	var value float64
+	min = s.GetValue(0)
+	var value A
 	for i := 1; i < s.Len(); i++ {
 		value = s.GetValue(i)
 		if value < min {
@@ -102,12 +92,12 @@ func (s Seq) Min() float64 {
 }
 
 // Max returns the maximum value in the seq.
-func (s Seq) Max() float64 {
+func (s Seq[A]) Max() (max A) {
 	if s.Len() == 0 {
-		return 0
+		return
 	}
-	max := s.GetValue(0)
+	max = s.GetValue(0)
-	var value float64
+	var value A
 	for i := 1; i < s.Len(); i++ {
 		value = s.GetValue(i)
 		if value > max {
@@ -118,13 +108,13 @@ func (s Seq) Max() float64 {
 }
 
 // MinMax returns the minimum and the maximum in one pass.
-func (s Seq) MinMax() (min, max float64) {
+func (s Seq[A]) MinMax() (min, max A) {
 	if s.Len() == 0 {
 		return
 	}
 	min = s.GetValue(0)
 	max = min
-	var value float64
+	var value A
 	for i := 1; i < s.Len(); i++ {
 		value = s.GetValue(i)
 		if value < min {
@@ -139,17 +129,19 @@ func (s Seq) MinMax() (min, max float64) {
 
 // Sort returns the seq sorted in ascending order.
 // This fully enumerates the seq.
-func (s Seq) Sort() Seq {
+func (s Seq[A]) Sort() Seq[A] {
 	if s.Len() == 0 {
 		return s
 	}
 	values := s.Values()
-	sort.Float64s(values)
+	sort.Slice(values, func(i, j int) bool {
-	return Seq{Array(values)}
+		return values[i] < values[j]
+	})
+	return Seq[A]{Array(values...)}
 }
 
 // Reverse reverses the sequence
-func (s Seq) Reverse() Seq {
+func (s Seq[A]) Reverse() Seq[A] {
 	if s.Len() == 0 {
 		return s
 	}
@@ -158,7 +150,7 @@ func (s Seq) Reverse() Seq {
 	valuesLen := len(values)
 	valuesLen1 := len(values) - 1
 	valuesLen2 := valuesLen >> 1
-	var i, j float64
+	var i, j A
 	for index := 0; index < valuesLen2; index++ {
 		i = values[index]
 		j = values[valuesLen1-index]
@@ -166,32 +158,13 @@ func (s Seq) Reverse() Seq {
 		values[valuesLen1-index] = i
 	}
 
-	return Seq{Array(values)}
+	return Seq[A]{Array(values...)}
-}
-
-// Median returns the median or middle value in the sorted seq.
-func (s Seq) Median() (median float64) {
-	l := s.Len()
-	if l == 0 {
-		return
-	}
-
-	sorted := s.Sort()
-	if l%2 == 0 {
-		v0 := sorted.GetValue(l/2 - 1)
-		v1 := sorted.GetValue(l/2 + 1)
-		median = (v0 + v1) / 2
-	} else {
-		median = float64(sorted.GetValue(l << 1))
-	}
-
-	return
 }
 
 // Sum adds all the elements of a series together.
-func (s Seq) Sum() (accum float64) {
+func (s Seq[A]) Sum() (accum A) {
 	if s.Len() == 0 {
-		return 0
+		return
 	}
 
 	for i := 0; i < s.Len(); i++ {
@@ -201,24 +174,25 @@ func (s Seq) Sum() (accum float64) {
 }
 
 // Average returns the float average of the values in the buffer.
-func (s Seq) Average() float64 {
+func (s Seq[A]) Average() (avg float64) {
 	if s.Len() == 0 {
-		return 0
+		return
 	}
 
-	return s.Sum() / float64(s.Len())
+	avg = float64(s.Sum()) / float64((s.Len()))
+	return
 }
 
 // Variance computes the variance of the buffer.
-func (s Seq) Variance() float64 {
+func (s Seq[A]) Variance() (variance float64) {
 	if s.Len() == 0 {
 		return 0
 	}
 
 	m := s.Average()
-	var variance, v float64
+	var v float64
 	for i := 0; i < s.Len(); i++ {
-		v = s.GetValue(i)
+		v = float64(s.GetValue(i))
 		variance += (v - m) * (v - m)
 	}
 
@@ -226,24 +200,24 @@ func (s Seq) Variance() float64 {
 }
 
 // StdDev returns the standard deviation.
-func (s Seq) StdDev() float64 {
+func (s Seq[A]) StdDev() float64 {
 	if s.Len() == 0 {
 		return 0
 	}
 
-	return math.Pow(s.Variance(), 0.5)
+	return math.Pow(float64(s.Variance()), 0.5)
 }
 
 //Percentile finds the relative standing in a slice of floats.
 // `percent` should be given on the interval [0,1.0).
-func (s Seq) Percentile(percent float64) (percentile float64) {
+func (s Seq[A]) Percentile(percent float64) (percentile A) {
 	l := s.Len()
 	if l == 0 {
 		return 0
 	}
 
 	if percent < 0 || percent > 1.0 {
-		panic("percent out of range [0.0, 1.0)")
+		panic("percentile percent out of range [0.0, 1.0)")
 	}
 
 	sorted := s.Sort()
@@ -262,14 +236,14 @@ func (s Seq) Percentile(percent float64) (percentile float64) {
 }
 
 // Normalize maps every value to the interval [0, 1.0].
-func (s Seq) Normalize() Seq {
+func (s Seq[A]) Normalize() Seq[float64] {
 	min, max := s.MinMax()
 
-	delta := max - min
+	delta := float64(max - min)
 	output := make([]float64, s.Len())
 	for i := 0; i < s.Len(); i++ {
-		output[i] = (s.GetValue(i) - min) / delta
+		output[i] = (float64(s.GetValue(i)) - float64(min)) / delta
 	}
 
-	return Seq{Array(output)}
+	return Seq[float64]{Array(output...)}
 }

seq_test.go

@@ -6,95 +6,69 @@ import (
 	"github.com/wcharczuk/go-chart/v2/testutil"
 )
 
-func TestSeqEach(t *testing.T) {
+func Test_Seq_Each(t *testing.T) {
-	// replaced new assertions helper
+	values := Seq[int]{Array(1, 2, 3, 4)}
-
+	values.Each(func(i int, v int) {
-	values := Seq{NewArray(1, 2, 3, 4)}
-	values.Each(func(i int, v float64) {
 		testutil.AssertEqual(t, i, v-1)
 	})
 }
 
-func TestSeqMap(t *testing.T) {
+func Test_Seq_Map(t *testing.T) {
-	// replaced new assertions helper
+	values := Seq[int]{Array(1, 2, 3, 4)}
-
+	mapped := values.Map(func(i int, v int) int {
-	values := Seq{NewArray(1, 2, 3, 4)}
-	mapped := values.Map(func(i int, v float64) float64 {
 		testutil.AssertEqual(t, i, v-1)
 		return v * 2
 	})
 	testutil.AssertEqual(t, 4, mapped.Len())
 }
 
-func TestSeqFoldLeft(t *testing.T) {
+func Test_Seq_FoldLeft(t *testing.T) {
-	// replaced new assertions helper
+	values := Seq[int]{Array(1, 2, 3, 4)}
-
+	ten := values.FoldLeft(func(_ int, vp, v int) int {
-	values := Seq{NewArray(1, 2, 3, 4)}
-	ten := values.FoldLeft(func(_ int, vp, v float64) float64 {
 		return vp + v
 	})
 	testutil.AssertEqual(t, 10, ten)
 
-	orderTest := Seq{NewArray(10, 3, 2, 1)}
+	orderTest := Seq[int]{Array(10, 3, 2, 1)}
-	four := orderTest.FoldLeft(func(_ int, vp, v float64) float64 {
+	four := orderTest.FoldLeft(func(_ int, vp, v int) int {
 		return vp - v
 	})
 	testutil.AssertEqual(t, 4, four)
 }
 
-func TestSeqFoldRight(t *testing.T) {
+func Test_Seq_FoldRight(t *testing.T) {
-	// replaced new assertions helper
+	values := Seq[int]{Array(1, 2, 3, 4)}
-
+	ten := values.FoldRight(func(_ int, vp, v int) int {
-	values := Seq{NewArray(1, 2, 3, 4)}
-	ten := values.FoldRight(func(_ int, vp, v float64) float64 {
 		return vp + v
 	})
 	testutil.AssertEqual(t, 10, ten)
 
-	orderTest := Seq{NewArray(10, 3, 2, 1)}
+	orderTest := Seq[int]{Array(10, 3, 2, 1)}
-	notFour := orderTest.FoldRight(func(_ int, vp, v float64) float64 {
+	notFour := orderTest.FoldRight(func(_ int, vp, v int) int {
 		return vp - v
 	})
 	testutil.AssertEqual(t, -14, notFour)
 }
 
-func TestSeqSum(t *testing.T) {
+func Test_Seq_Sum(t *testing.T) {
-	// replaced new assertions helper
+	values := Seq[int]{Array(1, 2, 3, 4)}
-
-	values := Seq{NewArray(1, 2, 3, 4)}
 	testutil.AssertEqual(t, 10, values.Sum())
 }
 
-func TestSeqAverage(t *testing.T) {
+func Test_Seq_Average(t *testing.T) {
-	// replaced new assertions helper
+	values := Seq[int]{Array(1, 2, 3, 4)}
-
-	values := Seq{NewArray(1, 2, 3, 4)}
 	testutil.AssertEqual(t, 2.5, values.Average())
 
-	valuesOdd := Seq{NewArray(1, 2, 3, 4, 5)}
+	valuesOdd := Seq[int]{Array(1, 2, 3, 4, 5)}
 	testutil.AssertEqual(t, 3, valuesOdd.Average())
 }
 
-func TestSequenceVariance(t *testing.T) {
+func Test_Seq_Variance(t *testing.T) {
-	// replaced new assertions helper
+	values := Seq[int]{Array(1, 2, 3, 4, 5)}
-
-	values := Seq{NewArray(1, 2, 3, 4, 5)}
 	testutil.AssertEqual(t, 2, values.Variance())
 }
 
-func TestSequenceNormalize(t *testing.T) {
+func Test_LinearRange(t *testing.T) {
-	// replaced new assertions helper
-
-	normalized := ValueSequence(1, 2, 3, 4, 5).Normalize().Values()
-
-	testutil.AssertNotEmpty(t, normalized)
-	testutil.AssertLen(t, normalized, 5)
-	testutil.AssertEqual(t, 0, normalized[0])
-	testutil.AssertEqual(t, 0.25, normalized[1])
-	testutil.AssertEqual(t, 1, normalized[4])
-}
-
-func TestLinearRange(t *testing.T) {
 	// replaced new assertions helper
 
 	values := LinearRange(1, 100)
@@ -103,7 +77,7 @@ func TestLinearRange(t *testing.T) {
 	testutil.AssertEqual(t, 100, values[99])
 }
 
-func TestLinearRangeWithStep(t *testing.T) {
+func Test_LinearRange_WithStep(t *testing.T) {
 	// replaced new assertions helper
 
 	values := LinearRangeWithStep(0, 100, 5)
@@ -111,7 +85,7 @@ func TestLinearRangeWithStep(t *testing.T) {
 	testutil.AssertLen(t, values, 21)
 }
 
-func TestLinearRangeReversed(t *testing.T) {
+func Test_LinearRange_reversed(t *testing.T) {
 	// replaced new assertions helper
 
 	values := LinearRange(10.0, 1.0)
@@ -120,7 +94,7 @@ func TestLinearRangeReversed(t *testing.T) {
 	testutil.AssertEqual(t, 1.0, values[9])
 }
 
-func TestLinearSequenceRegression(t *testing.T) {
+func Test_LinearSequence_Regression(t *testing.T) {
 	// replaced new assertions helper
 
 	// note; this assumes a 1.0 step is implicitly set in the constructor.
@@ -129,7 +103,7 @@ func TestLinearSequenceRegression(t *testing.T) {
 	testutil.AssertEqual(t, 100, linearProvider.End())
 	testutil.AssertEqual(t, 100, linearProvider.Len())
 
-	values := Seq{linearProvider}.Values()
+	values := Seq[float64]{linearProvider}.Values()
 	testutil.AssertLen(t, values, 100)
 	testutil.AssertEqual(t, 1.0, values[0])
 	testutil.AssertEqual(t, 100, values[99])

sequence.go

@@ -0,0 +1,7 @@
+package chart
+
+// Sequence is a provider for values for a seq.
+type Sequence[A any] interface {
+	Len() int
+	GetValue(int) A
+}

sma_series.go

@@ -94,7 +94,7 @@ func (sma SMASeries) GetLastValues() (x, y float64) {
 
 func (sma SMASeries) getAverage(index int) float64 {
 	period := sma.GetPeriod()
-	floor := MaxInt(0, index-period)
+	floor := Max(0, index-period)
 	var accum float64
 	var count float64
 	for x := index; x >= floor; x-- {

stacked_bar_chart.go

@@ -171,7 +171,7 @@ func (sbc StackedBarChart) drawBar(r Renderer, canvasBox Box, xoffset int, bar S
 			Top:    yoffset,
 			Left:   bxl,
 			Right:  bxr,
-			Bottom: MinInt(yoffset+barHeight, canvasBox.Bottom-DefaultStrokeWidth),
+			Bottom: Min(yoffset+barHeight, canvasBox.Bottom-DefaultStrokeWidth),
 		}
 		Draw.Box(r, barBox, bv.Style.InheritFrom(sbc.styleDefaultsStackedBarValue(index)))
 		yoffset += barHeight
@@ -220,7 +220,7 @@ func (sbc StackedBarChart) drawHorizontalBar(r Renderer, canvasBox Box, yoffset
 		barHeight := int(math.Ceil(bv.Value * float64(canvasBox.Width())))
 		barBox := Box{
 			Top:    boxTop,
-			Left:   MinInt(xOffset-barHeight, canvasBox.Left+DefaultStrokeWidth),
+			Left:   Min(xOffset-barHeight, canvasBox.Left+DefaultStrokeWidth),
 			Right:  xOffset,
 			Bottom: boxBottom,
 		}
@@ -455,7 +455,7 @@ func (sbc StackedBarChart) getAdjustedCanvasBox(r Renderer, canvasBox Box) Box {
 				lines := Text.WrapFit(r, bar.Name, barLabelBox.Width(), axisStyle)
 				linesBox := Text.MeasureLines(r, lines, axisStyle)
 
-				xaxisHeight = MaxInt(linesBox.Height()+(2*DefaultXAxisMargin), xaxisHeight)
+				xaxisHeight = Max(linesBox.Height()+(2*DefaultXAxisMargin), xaxisHeight)
 			}
 		}
 		return Box{
@@ -498,7 +498,7 @@ func (sbc StackedBarChart) getHorizontalAdjustedCanvasBox(r Renderer, canvasBox
 				lines := Text.WrapFit(r, bar.Name, barLabelBox.Width(), axisStyle)
 				linesBox := Text.MeasureLines(r, lines, axisStyle)
 
-				yAxisWidth = MaxInt(linesBox.Height()+(2*DefaultXAxisMargin), yAxisWidth)
+				yAxisWidth = Max(linesBox.Height()+(2*DefaultXAxisMargin), yAxisWidth)
 			}
 		}
 		return Box{
@@ -552,7 +552,7 @@ func (sbc StackedBarChart) styleDefaultsTitle() Style {
 }
 
 func (sbc StackedBarChart) getScaledFontSize() float64 {
-	effectiveDimension := MinInt(sbc.GetWidth(), sbc.GetHeight())
+	effectiveDimension := Min(sbc.GetWidth(), sbc.GetHeight())
 	if effectiveDimension >= 2048 {
 		return 48.0
 	} else if effectiveDimension >= 1024 {
@@ -566,7 +566,7 @@ func (sbc StackedBarChart) getScaledFontSize() float64 {
 }
 
 func (sbc StackedBarChart) getTitleFontSize() float64 {
-	effectiveDimension := MinInt(sbc.GetWidth(), sbc.GetHeight())
+	effectiveDimension := Min(sbc.GetWidth(), sbc.GetHeight())
 	if effectiveDimension >= 2048 {
 		return 48
 	} else if effectiveDimension >= 1024 {

testutil/helpers.go

@@ -27,7 +27,7 @@ func AssertNotNil(t *testing.T, actual interface{}, message ...interface{}) {
 }
 
 // AssertEqual asserts two arguments are equal.
-func AssertEqual(t *testing.T, expected, actual interface{}, message ...interface{}) {
+func AssertEqual[A any](t *testing.T, expected, actual A, message ...interface{}) {
 	if !equal(expected, actual) {
 		t.Errorf("assertion failed; expected %v to equal %v", actual, expected)
 		if len(message) > 0 {
@@ -38,7 +38,7 @@ func AssertEqual(t *testing.T, expected, actual interface{}, message ...interfac
 }
 
 // AssertNotEqual asserts two arguments are not equal.
-func AssertNotEqual(t *testing.T, expected, actual interface{}, message ...interface{}) {
+func AssertNotEqual[A any](t *testing.T, expected, actual A, message ...interface{}) {
 	if equal(expected, actual) {
 		t.Errorf("assertion failed; expected %v to not equal %v", actual, expected)
 		if len(message) > 0 {

text.go

@@ -147,7 +147,7 @@ func (t text) MeasureLines(r Renderer, lines []string, style Style) Box {
 	var output Box
 	for index, line := range lines {
 		lineBox := r.MeasureText(line)
-		output.Right = MaxInt(lineBox.Right, output.Right)
+		output.Right = Max(lineBox.Right, output.Right)
 		output.Bottom += lineBox.Height()
 		if index < len(lines)-1 {
 			output.Bottom += +style.GetTextLineSpacing()

tick.go

@@ -84,7 +84,7 @@ func GenerateContinuousTicks(r Renderer, ra Range, isVertical bool, style Style,
 	tickStep := rangeDelta / float64(intermediateTickCount)
 
 	roundTo := GetRoundToForDelta(rangeDelta) / 10
-	intermediateTickCount = MinInt(intermediateTickCount, DefaultTickCountSanityCheck)
+	intermediateTickCount = Min(intermediateTickCount, DefaultTickCountSanityCheck)
 
 	for x := 1; x < intermediateTickCount; x++ {
 		var tickValue float64

times.go

@@ -7,7 +7,7 @@ import (
 
 // Assert types implement interfaces.
 var (
-	_ Sequence       = (*Times)(nil)
+	_ Sequence[float64] = (*Times)(nil)
 	_ sort.Interface    = (*Times)(nil)
 )
 

value_buffer.go

@@ -1,6 +1,7 @@
 package chart
 
 import (
+	"constraints"
 	"fmt"
 	"strings"
 )
@@ -13,14 +14,14 @@ const (
 )
 
 // NewValueBuffer creates a new value buffer with an optional set of values.
-func NewValueBuffer(values ...float64) *ValueBuffer {
+func NewValueBuffer[A constraints.Ordered](values ...A) *ValueBuffer[A] {
 	var tail int
-	array := make([]float64, MaxInt(len(values), bufferDefaultCapacity))
+	array := make([]A, Max(len(values), bufferDefaultCapacity))
 	if len(values) > 0 {
 		copy(array, values)
 		tail = len(values)
 	}
-	return &ValueBuffer{
+	return &ValueBuffer[A]{
 		array: array,
 		head:  0,
 		tail:  tail,
@@ -29,21 +30,21 @@ func NewValueBuffer(values ...float64) *ValueBuffer {
 }
 
 // NewValueBufferWithCapacity creates a new ValueBuffer pre-allocated with the given capacity.
-func NewValueBufferWithCapacity(capacity int) *ValueBuffer {
+func NewValueBufferWithCapacity[A any](capacity int) *ValueBuffer[A] {
-	return &ValueBuffer{
+	return &ValueBuffer[A]{
-		array: make([]float64, capacity),
+		array: make([]A, capacity),
 		head:  0,
 		tail:  0,
 		size:  0,
 	}
 }
 
-// ValueBuffer is a fifo datastructure that is backed by a pre-allocated array.
+// ValueBuffer is a fifo data structure that is backed by a pre-allocated array.
 // Instead of allocating a whole new node object for each element, array elements are re-used (which saves GC churn).
 // Enqueue can be O(n), Dequeue is generally O(1).
 // Buffer implements `seq.Provider`
-type ValueBuffer struct {
+type ValueBuffer[A any] struct {
-	array []float64
+	array []A
 	head  int
 	tail  int
 	size  int
@@ -51,24 +52,24 @@ type ValueBuffer struct {
 
 // Len returns the length of the Buffer (as it is currently populated).
 // Actual memory footprint may be different.
-func (b *ValueBuffer) Len() int {
+func (b *ValueBuffer[A]) Len() int {
 	return b.size
 }
 
 // GetValue implements seq provider.
-func (b *ValueBuffer) GetValue(index int) float64 {
+func (b *ValueBuffer[A]) GetValue(index int) A {
 	effectiveIndex := (b.head + index) % len(b.array)
 	return b.array[effectiveIndex]
 }
 
 // Capacity returns the total size of the Buffer, including empty elements.
-func (b *ValueBuffer) Capacity() int {
+func (b *ValueBuffer[A]) Capacity() int {
 	return len(b.array)
 }
 
 // SetCapacity sets the capacity of the Buffer.
-func (b *ValueBuffer) SetCapacity(capacity int) {
+func (b *ValueBuffer[A]) SetCapacity(capacity int) {
-	newArray := make([]float64, capacity)
+	newArray := make([]A, capacity)
 	if b.size > 0 {
 		if b.head < b.tail {
 			arrayCopy(b.array, b.head, newArray, 0, b.size)
@@ -87,15 +88,15 @@ func (b *ValueBuffer) SetCapacity(capacity int) {
 }
 
 // Clear removes all objects from the Buffer.
-func (b *ValueBuffer) Clear() {
+func (b *ValueBuffer[A]) Clear() {
-	b.array = make([]float64, bufferDefaultCapacity)
+	b.array = make([]A, bufferDefaultCapacity)
 	b.head = 0
 	b.tail = 0
 	b.size = 0
 }
 
 // Enqueue adds an element to the "back" of the Buffer.
-func (b *ValueBuffer) Enqueue(value float64) {
+func (b *ValueBuffer[A]) Enqueue(value A) {
 	if b.size == len(b.array) {
 		newCapacity := int(len(b.array) * int(bufferGrowFactor/100))
 		if newCapacity < (len(b.array) + bufferMinimumGrow) {
@@ -110,38 +111,41 @@ func (b *ValueBuffer) Enqueue(value float64) {
 }
 
 // Dequeue removes the first element from the RingBuffer.
-func (b *ValueBuffer) Dequeue() float64 {
+func (b *ValueBuffer[A]) Dequeue() (output A) {
 	if b.size == 0 {
-		return 0
+		return
 	}
 
-	removed := b.array[b.head]
+	output = b.array[b.head]
 	b.head = (b.head + 1) % len(b.array)
 	b.size--
-	return removed
+	return
 }
 
 // Peek returns but does not remove the first element.
-func (b *ValueBuffer) Peek() float64 {
+func (b *ValueBuffer[A]) Peek() (output A) {
 	if b.size == 0 {
-		return 0
+		return
 	}
-	return b.array[b.head]
+	output = b.array[b.head]
+	return
 }
 
 // PeekBack returns but does not remove the last element.
-func (b *ValueBuffer) PeekBack() float64 {
+func (b *ValueBuffer[A]) PeekBack() (output A) {
 	if b.size == 0 {
-		return 0
+		return
 	}
 	if b.tail == 0 {
-		return b.array[len(b.array)-1]
+		output = b.array[len(b.array)-1]
+		return
 	}
-	return b.array[b.tail-1]
+	output = b.array[b.tail-1]
+	return
 }
 
 // TrimExcess resizes the capacity of the buffer to better fit the contents.
-func (b *ValueBuffer) TrimExcess() {
+func (b *ValueBuffer[A]) TrimExcess() {
 	threshold := float64(len(b.array)) * 0.9
 	if b.size < int(threshold) {
 		b.SetCapacity(b.size)
@@ -149,8 +153,8 @@ func (b *ValueBuffer) TrimExcess() {
 }
 
 // Array returns the ring buffer, in order, as an array.
-func (b *ValueBuffer) Array() Array {
+func (b *ValueBuffer[A]) Array() []A {
-	newArray := make([]float64, b.size)
+	newArray := make([]A, b.size)
 
 	if b.size == 0 {
 		return newArray
@@ -163,11 +167,11 @@ func (b *ValueBuffer) Array() Array {
 		arrayCopy(b.array, 0, newArray, len(b.array)-b.head, b.tail)
 	}
 
-	return Array(newArray)
+	return newArray
 }
 
 // Each calls the consumer for each element in the buffer.
-func (b *ValueBuffer) Each(mapfn func(int, float64)) {
+func (b *ValueBuffer[A]) Each(mapfn func(int, A)) {
 	if b.size == 0 {
 		return
 	}
@@ -191,10 +195,10 @@ func (b *ValueBuffer) Each(mapfn func(int, float64)) {
 }
 
 // String returns a string representation for value buffers.
-func (b *ValueBuffer) String() string {
+func (b *ValueBuffer[A]) String() string {
 	var values []string
 	for _, elem := range b.Array() {
-		values = append(values, fmt.Sprintf("%v", elem))
+		values = append(values, fmt.Sprint(elem))
 	}
 	return strings.Join(values, " <= ")
 }
@@ -203,14 +207,15 @@ func (b *ValueBuffer) String() string {
 // Util methods
 // --------------------------------------------------------------------------------
 
-func arrayClear(source []float64, index, length int) {
+func arrayClear[A any](source []A, index, length int) {
+	var zero A
 	for x := 0; x < length; x++ {
 		absoluteIndex := x + index
-		source[absoluteIndex] = 0
+		source[absoluteIndex] = zero
 	}
 }
 
-func arrayCopy(source []float64, sourceIndex int, destination []float64, destinationIndex, length int) {
+func arrayCopy[A any](source []A, sourceIndex int, destination []A, destinationIndex, length int) {
 	for x := 0; x < length; x++ {
 		from := sourceIndex + x
 		to := destinationIndex + x

value_buffer_test.go

@@ -6,10 +6,8 @@ import (
 	"github.com/wcharczuk/go-chart/v2/testutil"
 )
 
-func TestBuffer(t *testing.T) {
+func Test_ValueBuffer(t *testing.T) {
-	// replaced new assertions helper
+	buffer := NewValueBuffer[int]()
-
-	buffer := NewValueBuffer()
 
 	buffer.Enqueue(1)
 	testutil.AssertEqual(t, 1, buffer.Len())
@@ -100,10 +98,8 @@ func TestBuffer(t *testing.T) {
 	testutil.AssertZero(t, buffer.PeekBack())
 }
 
-func TestBufferClear(t *testing.T) {
+func Test_ValueBufferClear(t *testing.T) {
-	// replaced new assertions helper
+	buffer := NewValueBuffer[int]()
-
-	buffer := NewValueBuffer()
 	buffer.Enqueue(1)
 	buffer.Enqueue(1)
 	buffer.Enqueue(1)
@@ -121,10 +117,8 @@ func TestBufferClear(t *testing.T) {
 	testutil.AssertZero(t, buffer.PeekBack())
 }
 
-func TestBufferArray(t *testing.T) {
+func Test_ValueBuffer_Array(t *testing.T) {
-	// replaced new assertions helper
+	buffer := NewValueBuffer[int]()
-
-	buffer := NewValueBuffer()
 	buffer.Enqueue(1)
 	buffer.Enqueue(2)
 	buffer.Enqueue(3)
@@ -140,10 +134,8 @@ func TestBufferArray(t *testing.T) {
 	testutil.AssertEqual(t, 5, contents[4])
 }
 
-func TestBufferEach(t *testing.T) {
+func Test_ValueBuffer_Each(t *testing.T) {
-	// replaced new assertions helper
+	buffer := NewValueBuffer[float64]()
-
-	buffer := NewValueBuffer()
 
 	for x := 1; x < 17; x++ {
 		buffer.Enqueue(float64(x))
@@ -159,10 +151,8 @@ func TestBufferEach(t *testing.T) {
 	testutil.AssertEqual(t, 16, called)
 }
 
-func TestNewBuffer(t *testing.T) {
+func Test_NewValueBuffer(t *testing.T) {
-	// replaced new assertions helper
+	empty := NewValueBuffer[int]()
-
-	empty := NewValueBuffer()
 	testutil.AssertNotNil(t, empty)
 	testutil.AssertZero(t, empty.Len())
 	testutil.AssertEqual(t, bufferDefaultCapacity, empty.Capacity())
@@ -170,9 +160,7 @@ func TestNewBuffer(t *testing.T) {
 	testutil.AssertZero(t, empty.PeekBack())
 }
 
-func TestNewBufferWithValues(t *testing.T) {
+func Test_NewBuffer_withValues(t *testing.T) {
-	// replaced new assertions helper
-
 	values := NewValueBuffer(1, 2, 3, 4, 5)
 	testutil.AssertNotNil(t, values)
 	testutil.AssertEqual(t, 5, values.Len())
@@ -180,10 +168,8 @@ func TestNewBufferWithValues(t *testing.T) {
 	testutil.AssertEqual(t, 5, values.PeekBack())
 }
 
-func TestBufferGrowth(t *testing.T) {
+func Test_ValueBuffer_growth(t *testing.T) {
-	// replaced new assertions helper
+	values := NewValueBuffer[float64](1, 2, 3, 4, 5)
-
-	values := NewValueBuffer(1, 2, 3, 4, 5)
 	for i := 0; i < 1<<10; i++ {
 		values.Enqueue(float64(i))
 	}

value_sequence.go

@@ -0,0 +1,8 @@
+package chart
+
+// ValueSequence returns a sequence for a given values set.
+func ValueSequence(values ...float64) Seq[float64] {
+	return Seq[float64]{
+		Array(values...),
+	}
+}

value_sequence_test.go

@@ -0,0 +1,19 @@
+package chart
+
+import (
+	"testing"
+
+	"github.com/wcharczuk/go-chart/v2/testutil"
+)
+
+func Test_ValueSequence_Normalize(t *testing.T) {
+	// replaced new assertions helper
+
+	normalized := ValueSequence(1, 2, 3, 4, 5).Normalize().Values()
+
+	testutil.AssertNotEmpty(t, normalized)
+	testutil.AssertLen(t, normalized, 5)
+	testutil.AssertEqual(t, 0, normalized[0])
+	testutil.AssertEqual(t, 0.25, normalized[1])
+	testutil.AssertEqual(t, 1, normalized[4])
+}

viridis.go

@@ -3,262 +3,262 @@ package chart
 import "github.com/wcharczuk/go-chart/v2/drawing"
 
 var viridisColors = [256]drawing.Color{
-	drawing.Color{R: 0x44, G: 0x1, B: 0x54, A: 0xff},
+	{R: 0x44, G: 0x1, B: 0x54, A: 0xff},
-	drawing.Color{R: 0x44, G: 0x2, B: 0x55, A: 0xff},
+	{R: 0x44, G: 0x2, B: 0x55, A: 0xff},
-	drawing.Color{R: 0x45, G: 0x3, B: 0x57, A: 0xff},
+	{R: 0x45, G: 0x3, B: 0x57, A: 0xff},
-	drawing.Color{R: 0x45, G: 0x5, B: 0x58, A: 0xff},
+	{R: 0x45, G: 0x5, B: 0x58, A: 0xff},
-	drawing.Color{R: 0x45, G: 0x6, B: 0x5a, A: 0xff},
+	{R: 0x45, G: 0x6, B: 0x5a, A: 0xff},
-	drawing.Color{R: 0x46, G: 0x8, B: 0x5b, A: 0xff},
+	{R: 0x46, G: 0x8, B: 0x5b, A: 0xff},
-	drawing.Color{R: 0x46, G: 0x9, B: 0x5d, A: 0xff},
+	{R: 0x46, G: 0x9, B: 0x5d, A: 0xff},
-	drawing.Color{R: 0x46, G: 0xb, B: 0x5e, A: 0xff},
+	{R: 0x46, G: 0xb, B: 0x5e, A: 0xff},
-	drawing.Color{R: 0x46, G: 0xc, B: 0x60, A: 0xff},
+	{R: 0x46, G: 0xc, B: 0x60, A: 0xff},
-	drawing.Color{R: 0x47, G: 0xe, B: 0x61, A: 0xff},
+	{R: 0x47, G: 0xe, B: 0x61, A: 0xff},
-	drawing.Color{R: 0x47, G: 0xf, B: 0x62, A: 0xff},
+	{R: 0x47, G: 0xf, B: 0x62, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x11, B: 0x64, A: 0xff},
+	{R: 0x47, G: 0x11, B: 0x64, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x12, B: 0x65, A: 0xff},
+	{R: 0x47, G: 0x12, B: 0x65, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x14, B: 0x66, A: 0xff},
+	{R: 0x47, G: 0x14, B: 0x66, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x15, B: 0x68, A: 0xff},
+	{R: 0x48, G: 0x15, B: 0x68, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x16, B: 0x69, A: 0xff},
+	{R: 0x48, G: 0x16, B: 0x69, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x18, B: 0x6a, A: 0xff},
+	{R: 0x48, G: 0x18, B: 0x6a, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x19, B: 0x6c, A: 0xff},
+	{R: 0x48, G: 0x19, B: 0x6c, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x1a, B: 0x6d, A: 0xff},
+	{R: 0x48, G: 0x1a, B: 0x6d, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x1c, B: 0x6e, A: 0xff},
+	{R: 0x48, G: 0x1c, B: 0x6e, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x1d, B: 0x6f, A: 0xff},
+	{R: 0x48, G: 0x1d, B: 0x6f, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x1e, B: 0x70, A: 0xff},
+	{R: 0x48, G: 0x1e, B: 0x70, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x20, B: 0x71, A: 0xff},
+	{R: 0x48, G: 0x20, B: 0x71, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x21, B: 0x73, A: 0xff},
+	{R: 0x48, G: 0x21, B: 0x73, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x22, B: 0x74, A: 0xff},
+	{R: 0x48, G: 0x22, B: 0x74, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x24, B: 0x75, A: 0xff},
+	{R: 0x48, G: 0x24, B: 0x75, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x25, B: 0x76, A: 0xff},
+	{R: 0x48, G: 0x25, B: 0x76, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x26, B: 0x77, A: 0xff},
+	{R: 0x48, G: 0x26, B: 0x77, A: 0xff},
-	drawing.Color{R: 0x48, G: 0x27, B: 0x78, A: 0xff},
+	{R: 0x48, G: 0x27, B: 0x78, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x29, B: 0x79, A: 0xff},
+	{R: 0x47, G: 0x29, B: 0x79, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x2a, B: 0x79, A: 0xff},
+	{R: 0x47, G: 0x2a, B: 0x79, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x2b, B: 0x7a, A: 0xff},
+	{R: 0x47, G: 0x2b, B: 0x7a, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x2c, B: 0x7b, A: 0xff},
+	{R: 0x47, G: 0x2c, B: 0x7b, A: 0xff},
-	drawing.Color{R: 0x47, G: 0x2e, B: 0x7c, A: 0xff},
+	{R: 0x47, G: 0x2e, B: 0x7c, A: 0xff},
-	drawing.Color{R: 0x46, G: 0x2f, B: 0x7d, A: 0xff},
+	{R: 0x46, G: 0x2f, B: 0x7d, A: 0xff},
-	drawing.Color{R: 0x46, G: 0x30, B: 0x7e, A: 0xff},
+	{R: 0x46, G: 0x30, B: 0x7e, A: 0xff},
-	drawing.Color{R: 0x46, G: 0x31, B: 0x7e, A: 0xff},
+	{R: 0x46, G: 0x31, B: 0x7e, A: 0xff},
-	drawing.Color{R: 0x46, G: 0x33, B: 0x7f, A: 0xff},
+	{R: 0x46, G: 0x33, B: 0x7f, A: 0xff},
-	drawing.Color{R: 0x45, G: 0x34, B: 0x80, A: 0xff},
+	{R: 0x45, G: 0x34, B: 0x80, A: 0xff},
-	drawing.Color{R: 0x45, G: 0x35, B: 0x81, A: 0xff},
+	{R: 0x45, G: 0x35, B: 0x81, A: 0xff},
-	drawing.Color{R: 0x45, G: 0x36, B: 0x81, A: 0xff},
+	{R: 0x45, G: 0x36, B: 0x81, A: 0xff},
-	drawing.Color{R: 0x44, G: 0x38, B: 0x82, A: 0xff},
+	{R: 0x44, G: 0x38, B: 0x82, A: 0xff},
-	drawing.Color{R: 0x44, G: 0x39, B: 0x83, A: 0xff},
+	{R: 0x44, G: 0x39, B: 0x83, A: 0xff},
-	drawing.Color{R: 0x44, G: 0x3a, B: 0x83, A: 0xff},
+	{R: 0x44, G: 0x3a, B: 0x83, A: 0xff},
-	drawing.Color{R: 0x43, G: 0x3b, B: 0x84, A: 0xff},
+	{R: 0x43, G: 0x3b, B: 0x84, A: 0xff},
-	drawing.Color{R: 0x43, G: 0x3c, B: 0x84, A: 0xff},
+	{R: 0x43, G: 0x3c, B: 0x84, A: 0xff},
-	drawing.Color{R: 0x43, G: 0x3e, B: 0x85, A: 0xff},
+	{R: 0x43, G: 0x3e, B: 0x85, A: 0xff},
-	drawing.Color{R: 0x42, G: 0x3f, B: 0x85, A: 0xff},
+	{R: 0x42, G: 0x3f, B: 0x85, A: 0xff},
-	drawing.Color{R: 0x42, G: 0x40, B: 0x86, A: 0xff},
+	{R: 0x42, G: 0x40, B: 0x86, A: 0xff},
-	drawing.Color{R: 0x41, G: 0x41, B: 0x86, A: 0xff},
+	{R: 0x41, G: 0x41, B: 0x86, A: 0xff},
-	drawing.Color{R: 0x41, G: 0x42, B: 0x87, A: 0xff},
+	{R: 0x41, G: 0x42, B: 0x87, A: 0xff},
-	drawing.Color{R: 0x41, G: 0x43, B: 0x87, A: 0xff},
+	{R: 0x41, G: 0x43, B: 0x87, A: 0xff},
-	drawing.Color{R: 0x40, G: 0x45, B: 0x88, A: 0xff},
+	{R: 0x40, G: 0x45, B: 0x88, A: 0xff},
-	drawing.Color{R: 0x40, G: 0x46, B: 0x88, A: 0xff},
+	{R: 0x40, G: 0x46, B: 0x88, A: 0xff},
-	drawing.Color{R: 0x3f, G: 0x47, B: 0x88, A: 0xff},
+	{R: 0x3f, G: 0x47, B: 0x88, A: 0xff},
-	drawing.Color{R: 0x3f, G: 0x48, B: 0x89, A: 0xff},
+	{R: 0x3f, G: 0x48, B: 0x89, A: 0xff},
-	drawing.Color{R: 0x3e, G: 0x49, B: 0x89, A: 0xff},
+	{R: 0x3e, G: 0x49, B: 0x89, A: 0xff},
-	drawing.Color{R: 0x3e, G: 0x4a, B: 0x89, A: 0xff},
+	{R: 0x3e, G: 0x4a, B: 0x89, A: 0xff},
-	drawing.Color{R: 0x3d, G: 0x4b, B: 0x8a, A: 0xff},
+	{R: 0x3d, G: 0x4b, B: 0x8a, A: 0xff},
-	drawing.Color{R: 0x3d, G: 0x4d, B: 0x8a, A: 0xff},
+	{R: 0x3d, G: 0x4d, B: 0x8a, A: 0xff},
-	drawing.Color{R: 0x3c, G: 0x4e, B: 0x8a, A: 0xff},
+	{R: 0x3c, G: 0x4e, B: 0x8a, A: 0xff},
-	drawing.Color{R: 0x3c, G: 0x4f, B: 0x8a, A: 0xff},
+	{R: 0x3c, G: 0x4f, B: 0x8a, A: 0xff},
-	drawing.Color{R: 0x3b, G: 0x50, B: 0x8b, A: 0xff},
+	{R: 0x3b, G: 0x50, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x3b, G: 0x51, B: 0x8b, A: 0xff},
+	{R: 0x3b, G: 0x51, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x3a, G: 0x52, B: 0x8b, A: 0xff},
+	{R: 0x3a, G: 0x52, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x3a, G: 0x53, B: 0x8b, A: 0xff},
+	{R: 0x3a, G: 0x53, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x39, G: 0x54, B: 0x8c, A: 0xff},
+	{R: 0x39, G: 0x54, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x39, G: 0x55, B: 0x8c, A: 0xff},
+	{R: 0x39, G: 0x55, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x38, G: 0x56, B: 0x8c, A: 0xff},
+	{R: 0x38, G: 0x56, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x38, G: 0x57, B: 0x8c, A: 0xff},
+	{R: 0x38, G: 0x57, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x37, G: 0x58, B: 0x8c, A: 0xff},
+	{R: 0x37, G: 0x58, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x37, G: 0x59, B: 0x8c, A: 0xff},
+	{R: 0x37, G: 0x59, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x36, G: 0x5b, B: 0x8d, A: 0xff},
+	{R: 0x36, G: 0x5b, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x36, G: 0x5c, B: 0x8d, A: 0xff},
+	{R: 0x36, G: 0x5c, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x35, G: 0x5d, B: 0x8d, A: 0xff},
+	{R: 0x35, G: 0x5d, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x35, G: 0x5e, B: 0x8d, A: 0xff},
+	{R: 0x35, G: 0x5e, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x34, G: 0x5f, B: 0x8d, A: 0xff},
+	{R: 0x34, G: 0x5f, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x34, G: 0x60, B: 0x8d, A: 0xff},
+	{R: 0x34, G: 0x60, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x33, G: 0x61, B: 0x8d, A: 0xff},
+	{R: 0x33, G: 0x61, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x33, G: 0x62, B: 0x8d, A: 0xff},
+	{R: 0x33, G: 0x62, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x33, G: 0x63, B: 0x8d, A: 0xff},
+	{R: 0x33, G: 0x63, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x32, G: 0x64, B: 0x8e, A: 0xff},
+	{R: 0x32, G: 0x64, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x32, G: 0x65, B: 0x8e, A: 0xff},
+	{R: 0x32, G: 0x65, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x31, G: 0x66, B: 0x8e, A: 0xff},
+	{R: 0x31, G: 0x66, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x31, G: 0x67, B: 0x8e, A: 0xff},
+	{R: 0x31, G: 0x67, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x30, G: 0x68, B: 0x8e, A: 0xff},
+	{R: 0x30, G: 0x68, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x30, G: 0x69, B: 0x8e, A: 0xff},
+	{R: 0x30, G: 0x69, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2f, G: 0x6a, B: 0x8e, A: 0xff},
+	{R: 0x2f, G: 0x6a, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2f, G: 0x6b, B: 0x8e, A: 0xff},
+	{R: 0x2f, G: 0x6b, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2f, G: 0x6c, B: 0x8e, A: 0xff},
+	{R: 0x2f, G: 0x6c, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2e, G: 0x6d, B: 0x8e, A: 0xff},
+	{R: 0x2e, G: 0x6d, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2e, G: 0x6e, B: 0x8e, A: 0xff},
+	{R: 0x2e, G: 0x6e, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2d, G: 0x6f, B: 0x8e, A: 0xff},
+	{R: 0x2d, G: 0x6f, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2d, G: 0x70, B: 0x8e, A: 0xff},
+	{R: 0x2d, G: 0x70, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2d, G: 0x70, B: 0x8e, A: 0xff},
+	{R: 0x2d, G: 0x70, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2c, G: 0x71, B: 0x8e, A: 0xff},
+	{R: 0x2c, G: 0x71, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2c, G: 0x72, B: 0x8e, A: 0xff},
+	{R: 0x2c, G: 0x72, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2b, G: 0x73, B: 0x8e, A: 0xff},
+	{R: 0x2b, G: 0x73, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2b, G: 0x74, B: 0x8e, A: 0xff},
+	{R: 0x2b, G: 0x74, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2b, G: 0x75, B: 0x8e, A: 0xff},
+	{R: 0x2b, G: 0x75, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2a, G: 0x76, B: 0x8e, A: 0xff},
+	{R: 0x2a, G: 0x76, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x2a, G: 0x77, B: 0x8e, A: 0xff},
+	{R: 0x2a, G: 0x77, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x29, G: 0x78, B: 0x8e, A: 0xff},
+	{R: 0x29, G: 0x78, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x29, G: 0x79, B: 0x8e, A: 0xff},
+	{R: 0x29, G: 0x79, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x29, G: 0x7a, B: 0x8e, A: 0xff},
+	{R: 0x29, G: 0x7a, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x28, G: 0x7b, B: 0x8e, A: 0xff},
+	{R: 0x28, G: 0x7b, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x28, G: 0x7c, B: 0x8e, A: 0xff},
+	{R: 0x28, G: 0x7c, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x28, G: 0x7d, B: 0x8e, A: 0xff},
+	{R: 0x28, G: 0x7d, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x27, G: 0x7e, B: 0x8e, A: 0xff},
+	{R: 0x27, G: 0x7e, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x27, G: 0x7f, B: 0x8e, A: 0xff},
+	{R: 0x27, G: 0x7f, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x26, G: 0x80, B: 0x8e, A: 0xff},
+	{R: 0x26, G: 0x80, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x26, G: 0x81, B: 0x8e, A: 0xff},
+	{R: 0x26, G: 0x81, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x26, G: 0x82, B: 0x8e, A: 0xff},
+	{R: 0x26, G: 0x82, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x25, G: 0x83, B: 0x8e, A: 0xff},
+	{R: 0x25, G: 0x83, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x25, G: 0x83, B: 0x8e, A: 0xff},
+	{R: 0x25, G: 0x83, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x25, G: 0x84, B: 0x8e, A: 0xff},
+	{R: 0x25, G: 0x84, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x24, G: 0x85, B: 0x8e, A: 0xff},
+	{R: 0x24, G: 0x85, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x24, G: 0x86, B: 0x8e, A: 0xff},
+	{R: 0x24, G: 0x86, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x23, G: 0x87, B: 0x8e, A: 0xff},
+	{R: 0x23, G: 0x87, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x23, G: 0x88, B: 0x8e, A: 0xff},
+	{R: 0x23, G: 0x88, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x23, G: 0x89, B: 0x8e, A: 0xff},
+	{R: 0x23, G: 0x89, B: 0x8e, A: 0xff},
-	drawing.Color{R: 0x22, G: 0x8a, B: 0x8d, A: 0xff},
+	{R: 0x22, G: 0x8a, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x22, G: 0x8b, B: 0x8d, A: 0xff},
+	{R: 0x22, G: 0x8b, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x22, G: 0x8c, B: 0x8d, A: 0xff},
+	{R: 0x22, G: 0x8c, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x21, G: 0x8d, B: 0x8d, A: 0xff},
+	{R: 0x21, G: 0x8d, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x21, G: 0x8e, B: 0x8d, A: 0xff},
+	{R: 0x21, G: 0x8e, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x21, G: 0x8f, B: 0x8d, A: 0xff},
+	{R: 0x21, G: 0x8f, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x20, G: 0x90, B: 0x8d, A: 0xff},
+	{R: 0x20, G: 0x90, B: 0x8d, A: 0xff},
-	drawing.Color{R: 0x20, G: 0x91, B: 0x8c, A: 0xff},
+	{R: 0x20, G: 0x91, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x20, G: 0x92, B: 0x8c, A: 0xff},
+	{R: 0x20, G: 0x92, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x20, G: 0x93, B: 0x8c, A: 0xff},
+	{R: 0x20, G: 0x93, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0x93, B: 0x8c, A: 0xff},
+	{R: 0x1f, G: 0x93, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0x94, B: 0x8c, A: 0xff},
+	{R: 0x1f, G: 0x94, B: 0x8c, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0x95, B: 0x8b, A: 0xff},
+	{R: 0x1f, G: 0x95, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0x96, B: 0x8b, A: 0xff},
+	{R: 0x1f, G: 0x96, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0x97, B: 0x8b, A: 0xff},
+	{R: 0x1f, G: 0x97, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x98, B: 0x8b, A: 0xff},
+	{R: 0x1e, G: 0x98, B: 0x8b, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x99, B: 0x8a, A: 0xff},
+	{R: 0x1e, G: 0x99, B: 0x8a, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x9a, B: 0x8a, A: 0xff},
+	{R: 0x1e, G: 0x9a, B: 0x8a, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x9b, B: 0x8a, A: 0xff},
+	{R: 0x1e, G: 0x9b, B: 0x8a, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x9c, B: 0x89, A: 0xff},
+	{R: 0x1e, G: 0x9c, B: 0x89, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x9d, B: 0x89, A: 0xff},
+	{R: 0x1e, G: 0x9d, B: 0x89, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x9e, B: 0x89, A: 0xff},
+	{R: 0x1e, G: 0x9e, B: 0x89, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0x9f, B: 0x88, A: 0xff},
+	{R: 0x1e, G: 0x9f, B: 0x88, A: 0xff},
-	drawing.Color{R: 0x1e, G: 0xa0, B: 0x88, A: 0xff},
+	{R: 0x1e, G: 0xa0, B: 0x88, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0xa1, B: 0x88, A: 0xff},
+	{R: 0x1f, G: 0xa1, B: 0x88, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0xa2, B: 0x87, A: 0xff},
+	{R: 0x1f, G: 0xa2, B: 0x87, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0xa3, B: 0x87, A: 0xff},
+	{R: 0x1f, G: 0xa3, B: 0x87, A: 0xff},
-	drawing.Color{R: 0x1f, G: 0xa3, B: 0x86, A: 0xff},
+	{R: 0x1f, G: 0xa3, B: 0x86, A: 0xff},
-	drawing.Color{R: 0x20, G: 0xa4, B: 0x86, A: 0xff},
+	{R: 0x20, G: 0xa4, B: 0x86, A: 0xff},
-	drawing.Color{R: 0x20, G: 0xa5, B: 0x86, A: 0xff},
+	{R: 0x20, G: 0xa5, B: 0x86, A: 0xff},
-	drawing.Color{R: 0x21, G: 0xa6, B: 0x85, A: 0xff},
+	{R: 0x21, G: 0xa6, B: 0x85, A: 0xff},
-	drawing.Color{R: 0x21, G: 0xa7, B: 0x85, A: 0xff},
+	{R: 0x21, G: 0xa7, B: 0x85, A: 0xff},
-	drawing.Color{R: 0x22, G: 0xa8, B: 0x84, A: 0xff},
+	{R: 0x22, G: 0xa8, B: 0x84, A: 0xff},
-	drawing.Color{R: 0x23, G: 0xa9, B: 0x83, A: 0xff},
+	{R: 0x23, G: 0xa9, B: 0x83, A: 0xff},
-	drawing.Color{R: 0x23, G: 0xaa, B: 0x83, A: 0xff},
+	{R: 0x23, G: 0xaa, B: 0x83, A: 0xff},
-	drawing.Color{R: 0x24, G: 0xab, B: 0x82, A: 0xff},
+	{R: 0x24, G: 0xab, B: 0x82, A: 0xff},
-	drawing.Color{R: 0x25, G: 0xac, B: 0x82, A: 0xff},
+	{R: 0x25, G: 0xac, B: 0x82, A: 0xff},
-	drawing.Color{R: 0x26, G: 0xad, B: 0x81, A: 0xff},
+	{R: 0x26, G: 0xad, B: 0x81, A: 0xff},
-	drawing.Color{R: 0x27, G: 0xae, B: 0x81, A: 0xff},
+	{R: 0x27, G: 0xae, B: 0x81, A: 0xff},
-	drawing.Color{R: 0x28, G: 0xaf, B: 0x80, A: 0xff},
+	{R: 0x28, G: 0xaf, B: 0x80, A: 0xff},
-	drawing.Color{R: 0x29, G: 0xaf, B: 0x7f, A: 0xff},
+	{R: 0x29, G: 0xaf, B: 0x7f, A: 0xff},
-	drawing.Color{R: 0x2a, G: 0xb0, B: 0x7f, A: 0xff},
+	{R: 0x2a, G: 0xb0, B: 0x7f, A: 0xff},
-	drawing.Color{R: 0x2b, G: 0xb1, B: 0x7e, A: 0xff},
+	{R: 0x2b, G: 0xb1, B: 0x7e, A: 0xff},
-	drawing.Color{R: 0x2c, G: 0xb2, B: 0x7d, A: 0xff},
+	{R: 0x2c, G: 0xb2, B: 0x7d, A: 0xff},
-	drawing.Color{R: 0x2e, G: 0xb3, B: 0x7c, A: 0xff},
+	{R: 0x2e, G: 0xb3, B: 0x7c, A: 0xff},
-	drawing.Color{R: 0x2f, G: 0xb4, B: 0x7c, A: 0xff},
+	{R: 0x2f, G: 0xb4, B: 0x7c, A: 0xff},
-	drawing.Color{R: 0x30, G: 0xb5, B: 0x7b, A: 0xff},
+	{R: 0x30, G: 0xb5, B: 0x7b, A: 0xff},
-	drawing.Color{R: 0x32, G: 0xb6, B: 0x7a, A: 0xff},
+	{R: 0x32, G: 0xb6, B: 0x7a, A: 0xff},
-	drawing.Color{R: 0x33, G: 0xb7, B: 0x79, A: 0xff},
+	{R: 0x33, G: 0xb7, B: 0x79, A: 0xff},
-	drawing.Color{R: 0x35, G: 0xb7, B: 0x79, A: 0xff},
+	{R: 0x35, G: 0xb7, B: 0x79, A: 0xff},
-	drawing.Color{R: 0x36, G: 0xb8, B: 0x78, A: 0xff},
+	{R: 0x36, G: 0xb8, B: 0x78, A: 0xff},
-	drawing.Color{R: 0x38, G: 0xb9, B: 0x77, A: 0xff},
+	{R: 0x38, G: 0xb9, B: 0x77, A: 0xff},
-	drawing.Color{R: 0x39, G: 0xba, B: 0x76, A: 0xff},
+	{R: 0x39, G: 0xba, B: 0x76, A: 0xff},
-	drawing.Color{R: 0x3b, G: 0xbb, B: 0x75, A: 0xff},
+	{R: 0x3b, G: 0xbb, B: 0x75, A: 0xff},
-	drawing.Color{R: 0x3d, G: 0xbc, B: 0x74, A: 0xff},
+	{R: 0x3d, G: 0xbc, B: 0x74, A: 0xff},
-	drawing.Color{R: 0x3e, G: 0xbd, B: 0x73, A: 0xff},
+	{R: 0x3e, G: 0xbd, B: 0x73, A: 0xff},
-	drawing.Color{R: 0x40, G: 0xbe, B: 0x72, A: 0xff},
+	{R: 0x40, G: 0xbe, B: 0x72, A: 0xff},
-	drawing.Color{R: 0x42, G: 0xbe, B: 0x71, A: 0xff},
+	{R: 0x42, G: 0xbe, B: 0x71, A: 0xff},
-	drawing.Color{R: 0x44, G: 0xbf, B: 0x70, A: 0xff},
+	{R: 0x44, G: 0xbf, B: 0x70, A: 0xff},
-	drawing.Color{R: 0x46, G: 0xc0, B: 0x6f, A: 0xff},
+	{R: 0x46, G: 0xc0, B: 0x6f, A: 0xff},
-	drawing.Color{R: 0x48, G: 0xc1, B: 0x6e, A: 0xff},
+	{R: 0x48, G: 0xc1, B: 0x6e, A: 0xff},
-	drawing.Color{R: 0x49, G: 0xc2, B: 0x6d, A: 0xff},
+	{R: 0x49, G: 0xc2, B: 0x6d, A: 0xff},
-	drawing.Color{R: 0x4b, G: 0xc2, B: 0x6c, A: 0xff},
+	{R: 0x4b, G: 0xc2, B: 0x6c, A: 0xff},
-	drawing.Color{R: 0x4d, G: 0xc3, B: 0x6b, A: 0xff},
+	{R: 0x4d, G: 0xc3, B: 0x6b, A: 0xff},
-	drawing.Color{R: 0x4f, G: 0xc4, B: 0x6a, A: 0xff},
+	{R: 0x4f, G: 0xc4, B: 0x6a, A: 0xff},
-	drawing.Color{R: 0x51, G: 0xc5, B: 0x69, A: 0xff},
+	{R: 0x51, G: 0xc5, B: 0x69, A: 0xff},
-	drawing.Color{R: 0x53, G: 0xc6, B: 0x68, A: 0xff},
+	{R: 0x53, G: 0xc6, B: 0x68, A: 0xff},
-	drawing.Color{R: 0x55, G: 0xc6, B: 0x66, A: 0xff},
+	{R: 0x55, G: 0xc6, B: 0x66, A: 0xff},
-	drawing.Color{R: 0x58, G: 0xc7, B: 0x65, A: 0xff},
+	{R: 0x58, G: 0xc7, B: 0x65, A: 0xff},
-	drawing.Color{R: 0x5a, G: 0xc8, B: 0x64, A: 0xff},
+	{R: 0x5a, G: 0xc8, B: 0x64, A: 0xff},
-	drawing.Color{R: 0x5c, G: 0xc9, B: 0x63, A: 0xff},
+	{R: 0x5c, G: 0xc9, B: 0x63, A: 0xff},
-	drawing.Color{R: 0x5e, G: 0xc9, B: 0x62, A: 0xff},
+	{R: 0x5e, G: 0xc9, B: 0x62, A: 0xff},
-	drawing.Color{R: 0x60, G: 0xca, B: 0x60, A: 0xff},
+	{R: 0x60, G: 0xca, B: 0x60, A: 0xff},
-	drawing.Color{R: 0x62, G: 0xcb, B: 0x5f, A: 0xff},
+	{R: 0x62, G: 0xcb, B: 0x5f, A: 0xff},
-	drawing.Color{R: 0x65, G: 0xcc, B: 0x5e, A: 0xff},
+	{R: 0x65, G: 0xcc, B: 0x5e, A: 0xff},
-	drawing.Color{R: 0x67, G: 0xcc, B: 0x5c, A: 0xff},
+	{R: 0x67, G: 0xcc, B: 0x5c, A: 0xff},
-	drawing.Color{R: 0x69, G: 0xcd, B: 0x5b, A: 0xff},
+	{R: 0x69, G: 0xcd, B: 0x5b, A: 0xff},
-	drawing.Color{R: 0x6c, G: 0xce, B: 0x5a, A: 0xff},
+	{R: 0x6c, G: 0xce, B: 0x5a, A: 0xff},
-	drawing.Color{R: 0x6e, G: 0xce, B: 0x58, A: 0xff},
+	{R: 0x6e, G: 0xce, B: 0x58, A: 0xff},
-	drawing.Color{R: 0x70, G: 0xcf, B: 0x57, A: 0xff},
+	{R: 0x70, G: 0xcf, B: 0x57, A: 0xff},
-	drawing.Color{R: 0x73, G: 0xd0, B: 0x55, A: 0xff},
+	{R: 0x73, G: 0xd0, B: 0x55, A: 0xff},
-	drawing.Color{R: 0x75, G: 0xd0, B: 0x54, A: 0xff},
+	{R: 0x75, G: 0xd0, B: 0x54, A: 0xff},
-	drawing.Color{R: 0x77, G: 0xd1, B: 0x52, A: 0xff},
+	{R: 0x77, G: 0xd1, B: 0x52, A: 0xff},
-	drawing.Color{R: 0x7a, G: 0xd2, B: 0x51, A: 0xff},
+	{R: 0x7a, G: 0xd2, B: 0x51, A: 0xff},
-	drawing.Color{R: 0x7c, G: 0xd2, B: 0x4f, A: 0xff},
+	{R: 0x7c, G: 0xd2, B: 0x4f, A: 0xff},
-	drawing.Color{R: 0x7f, G: 0xd3, B: 0x4e, A: 0xff},
+	{R: 0x7f, G: 0xd3, B: 0x4e, A: 0xff},
-	drawing.Color{R: 0x81, G: 0xd4, B: 0x4c, A: 0xff},
+	{R: 0x81, G: 0xd4, B: 0x4c, A: 0xff},
-	drawing.Color{R: 0x84, G: 0xd4, B: 0x4b, A: 0xff},
+	{R: 0x84, G: 0xd4, B: 0x4b, A: 0xff},
-	drawing.Color{R: 0x86, G: 0xd5, B: 0x49, A: 0xff},
+	{R: 0x86, G: 0xd5, B: 0x49, A: 0xff},
-	drawing.Color{R: 0x89, G: 0xd5, B: 0x48, A: 0xff},
+	{R: 0x89, G: 0xd5, B: 0x48, A: 0xff},
-	drawing.Color{R: 0x8b, G: 0xd6, B: 0x46, A: 0xff},
+	{R: 0x8b, G: 0xd6, B: 0x46, A: 0xff},
-	drawing.Color{R: 0x8e, G: 0xd7, B: 0x44, A: 0xff},
+	{R: 0x8e, G: 0xd7, B: 0x44, A: 0xff},
-	drawing.Color{R: 0x90, G: 0xd7, B: 0x43, A: 0xff},
+	{R: 0x90, G: 0xd7, B: 0x43, A: 0xff},
-	drawing.Color{R: 0x93, G: 0xd8, B: 0x41, A: 0xff},
+	{R: 0x93, G: 0xd8, B: 0x41, A: 0xff},
-	drawing.Color{R: 0x95, G: 0xd8, B: 0x3f, A: 0xff},
+	{R: 0x95, G: 0xd8, B: 0x3f, A: 0xff},
-	drawing.Color{R: 0x98, G: 0xd9, B: 0x3e, A: 0xff},
+	{R: 0x98, G: 0xd9, B: 0x3e, A: 0xff},
-	drawing.Color{R: 0x9b, G: 0xd9, B: 0x3c, A: 0xff},
+	{R: 0x9b, G: 0xd9, B: 0x3c, A: 0xff},
-	drawing.Color{R: 0x9d, G: 0xda, B: 0x3a, A: 0xff},
+	{R: 0x9d, G: 0xda, B: 0x3a, A: 0xff},
-	drawing.Color{R: 0xa0, G: 0xda, B: 0x39, A: 0xff},
+	{R: 0xa0, G: 0xda, B: 0x39, A: 0xff},
-	drawing.Color{R: 0xa3, G: 0xdb, B: 0x37, A: 0xff},
+	{R: 0xa3, G: 0xdb, B: 0x37, A: 0xff},
-	drawing.Color{R: 0xa5, G: 0xdb, B: 0x35, A: 0xff},
+	{R: 0xa5, G: 0xdb, B: 0x35, A: 0xff},
-	drawing.Color{R: 0xa8, G: 0xdc, B: 0x33, A: 0xff},
+	{R: 0xa8, G: 0xdc, B: 0x33, A: 0xff},
-	drawing.Color{R: 0xab, G: 0xdc, B: 0x32, A: 0xff},
+	{R: 0xab, G: 0xdc, B: 0x32, A: 0xff},
-	drawing.Color{R: 0xad, G: 0xdd, B: 0x30, A: 0xff},
+	{R: 0xad, G: 0xdd, B: 0x30, A: 0xff},
-	drawing.Color{R: 0xb0, G: 0xdd, B: 0x2e, A: 0xff},
+	{R: 0xb0, G: 0xdd, B: 0x2e, A: 0xff},
-	drawing.Color{R: 0xb3, G: 0xdd, B: 0x2d, A: 0xff},
+	{R: 0xb3, G: 0xdd, B: 0x2d, A: 0xff},
-	drawing.Color{R: 0xb5, G: 0xde, B: 0x2b, A: 0xff},
+	{R: 0xb5, G: 0xde, B: 0x2b, A: 0xff},
-	drawing.Color{R: 0xb8, G: 0xde, B: 0x29, A: 0xff},
+	{R: 0xb8, G: 0xde, B: 0x29, A: 0xff},
-	drawing.Color{R: 0xbb, G: 0xdf, B: 0x27, A: 0xff},
+	{R: 0xbb, G: 0xdf, B: 0x27, A: 0xff},
-	drawing.Color{R: 0xbd, G: 0xdf, B: 0x26, A: 0xff},
+	{R: 0xbd, G: 0xdf, B: 0x26, A: 0xff},
-	drawing.Color{R: 0xc0, G: 0xdf, B: 0x24, A: 0xff},
+	{R: 0xc0, G: 0xdf, B: 0x24, A: 0xff},
-	drawing.Color{R: 0xc3, G: 0xe0, B: 0x23, A: 0xff},
+	{R: 0xc3, G: 0xe0, B: 0x23, A: 0xff},
-	drawing.Color{R: 0xc5, G: 0xe0, B: 0x21, A: 0xff},
+	{R: 0xc5, G: 0xe0, B: 0x21, A: 0xff},
-	drawing.Color{R: 0xc8, G: 0xe1, B: 0x20, A: 0xff},
+	{R: 0xc8, G: 0xe1, B: 0x20, A: 0xff},
-	drawing.Color{R: 0xcb, G: 0xe1, B: 0x1e, A: 0xff},
+	{R: 0xcb, G: 0xe1, B: 0x1e, A: 0xff},
-	drawing.Color{R: 0xcd, G: 0xe1, B: 0x1d, A: 0xff},
+	{R: 0xcd, G: 0xe1, B: 0x1d, A: 0xff},
-	drawing.Color{R: 0xd0, G: 0xe2, B: 0x1c, A: 0xff},
+	{R: 0xd0, G: 0xe2, B: 0x1c, A: 0xff},
-	drawing.Color{R: 0xd3, G: 0xe2, B: 0x1b, A: 0xff},
+	{R: 0xd3, G: 0xe2, B: 0x1b, A: 0xff},
-	drawing.Color{R: 0xd5, G: 0xe2, B: 0x1a, A: 0xff},
+	{R: 0xd5, G: 0xe2, B: 0x1a, A: 0xff},
-	drawing.Color{R: 0xd8, G: 0xe3, B: 0x19, A: 0xff},
+	{R: 0xd8, G: 0xe3, B: 0x19, A: 0xff},
-	drawing.Color{R: 0xdb, G: 0xe3, B: 0x18, A: 0xff},
+	{R: 0xdb, G: 0xe3, B: 0x18, A: 0xff},
-	drawing.Color{R: 0xdd, G: 0xe3, B: 0x18, A: 0xff},
+	{R: 0xdd, G: 0xe3, B: 0x18, A: 0xff},
-	drawing.Color{R: 0xe0, G: 0xe4, B: 0x18, A: 0xff},
+	{R: 0xe0, G: 0xe4, B: 0x18, A: 0xff},
-	drawing.Color{R: 0xe2, G: 0xe4, B: 0x18, A: 0xff},
+	{R: 0xe2, G: 0xe4, B: 0x18, A: 0xff},
-	drawing.Color{R: 0xe5, G: 0xe4, B: 0x18, A: 0xff},
+	{R: 0xe5, G: 0xe4, B: 0x18, A: 0xff},
-	drawing.Color{R: 0xe8, G: 0xe5, B: 0x19, A: 0xff},
+	{R: 0xe8, G: 0xe5, B: 0x19, A: 0xff},
-	drawing.Color{R: 0xea, G: 0xe5, B: 0x19, A: 0xff},
+	{R: 0xea, G: 0xe5, B: 0x19, A: 0xff},
-	drawing.Color{R: 0xed, G: 0xe5, B: 0x1a, A: 0xff},
+	{R: 0xed, G: 0xe5, B: 0x1a, A: 0xff},
-	drawing.Color{R: 0xef, G: 0xe6, B: 0x1b, A: 0xff},
+	{R: 0xef, G: 0xe6, B: 0x1b, A: 0xff},
-	drawing.Color{R: 0xf2, G: 0xe6, B: 0x1c, A: 0xff},
+	{R: 0xf2, G: 0xe6, B: 0x1c, A: 0xff},
-	drawing.Color{R: 0xf4, G: 0xe6, B: 0x1e, A: 0xff},
+	{R: 0xf4, G: 0xe6, B: 0x1e, A: 0xff},
-	drawing.Color{R: 0xf7, G: 0xe6, B: 0x1f, A: 0xff},
+	{R: 0xf7, G: 0xe6, B: 0x1f, A: 0xff},
-	drawing.Color{R: 0xf9, G: 0xe7, B: 0x21, A: 0xff},
+	{R: 0xf9, G: 0xe7, B: 0x21, A: 0xff},
-	drawing.Color{R: 0xfb, G: 0xe7, B: 0x23, A: 0xff},
+	{R: 0xfb, G: 0xe7, B: 0x23, A: 0xff},
-	drawing.Color{R: 0xfe, G: 0xe7, B: 0x24, A: 0xff},
+	{R: 0xfe, G: 0xe7, B: 0x24, A: 0xff},
 }
 
 // Viridis creates a color map provider.

xaxis.go

@@ -110,9 +110,9 @@ func (xa XAxis) Measure(r Renderer, canvasBox Box, ra Range, defaults Style, tic
 			break
 		}
 
-		left = MinInt(left, ltx)
+		left = Min(left, ltx)
-		right = MaxInt(right, rtx)
+		right = Max(right, rtx)
-		bottom = MaxInt(bottom, ty)
+		bottom = Max(bottom, ty)
 	}
 
 	if !xa.NameStyle.Hidden && len(xa.Name) > 0 {
@@ -164,7 +164,7 @@ func (xa XAxis) Render(r Renderer, canvasBox Box, ra Range, defaults Style, tick
 				ty = canvasBox.Bottom + (2 * DefaultXAxisMargin)
 			}
 			Draw.Text(r, t.Label, tx, ty, tickWithAxisStyle)
-			maxTextHeight = MaxInt(maxTextHeight, tb.Height())
+			maxTextHeight = Max(maxTextHeight, tb.Height())
 			break
 		case TickPositionBetweenTicks:
 			if index > 0 {
@@ -180,7 +180,7 @@ func (xa XAxis) Render(r Renderer, canvasBox Box, ra Range, defaults Style, tick
 				}, finalTickStyle)
 
 				ftb := Text.MeasureLines(r, Text.WrapFit(r, t.Label, tx-ltx, finalTickStyle), finalTickStyle)
-				maxTextHeight = MaxInt(maxTextHeight, ftb.Height())
+				maxTextHeight = Max(maxTextHeight, ftb.Height())
 			}
 			break
 		}

yaxis.go

@@ -110,18 +110,18 @@ func (ya YAxis) Measure(r Renderer, canvasBox Box, ra Range, defaults Style, tic
 			finalTextX = tx - tb.Width()
 		}
 
-		maxTextHeight = MaxInt(tb.Height(), maxTextHeight)
+		maxTextHeight = Max(tb.Height(), maxTextHeight)
 
 		if ya.AxisType == YAxisPrimary {
 			minx = canvasBox.Right
-			maxx = MaxInt(maxx, tx+tb.Width())
+			maxx = Max(maxx, tx+tb.Width())
 		} else if ya.AxisType == YAxisSecondary {
-			minx = MinInt(minx, finalTextX)
+			minx = Min(minx, finalTextX)
-			maxx = MaxInt(maxx, tx)
+			maxx = Max(maxx, tx)
 		}
 
-		miny = MinInt(miny, ly-tbh2)
+		miny = Min(miny, ly-tbh2)
-		maxy = MaxInt(maxy, ly+tbh2)
+		maxy = Max(maxy, ly+tbh2)
 	}
 
 	if !ya.NameStyle.Hidden && len(ya.Name) > 0 {