Merge branch 'master' of github.com:wcharczuk/go-chart
This commit is contained in:
commit
9a9af15fd4
5 changed files with 27 additions and 11 deletions
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@ -1,6 +1,7 @@
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package main
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import (
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"log"
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"net/http"
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"github.com/wcharczuk/go-chart"
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@ -38,5 +39,5 @@ func drawChartWide(res http.ResponseWriter, req *http.Request) {
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func main() {
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http.HandleFunc("/", drawChart)
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http.HandleFunc("/wide", drawChartWide)
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http.ListenAndServe(":8080", nil)
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log.Fatal(http.ListenAndServe(":8080", nil))
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}
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@ -55,7 +55,7 @@ func TestAnnotationSeriesMeasure(t *testing.T) {
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assert.False(box.IsZero())
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assert.Equal(-5.0, box.Top)
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assert.Equal(5.0, box.Left)
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assert.Equal(147.0, box.Right) //the top,left annotation sticks up 5px and out ~44px.
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assert.Equal(146.0, box.Right) //the top,left annotation sticks up 5px and out ~44px.
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assert.Equal(115.0, box.Bottom)
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}
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8
chart.go
8
chart.go
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@ -97,6 +97,8 @@ func (c Chart) Render(rp RendererProvider, w io.Writer) error {
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err = c.checkRanges(xr, yr, yra)
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if err != nil {
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// (try to) dump the raw background to the stream.
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r.Save(w)
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return err
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}
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@ -461,7 +463,7 @@ func (c Chart) styleDefaultsBackground() Style {
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return Style{
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FillColor: DefaultBackgroundColor,
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StrokeColor: DefaultBackgroundStrokeColor,
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StrokeWidth: DefaultStrokeWidth,
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StrokeWidth: DefaultBackgroundStrokeWidth,
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}
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}
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@ -469,7 +471,7 @@ func (c Chart) styleDefaultsCanvas() Style {
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return Style{
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FillColor: DefaultCanvasColor,
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StrokeColor: DefaultCanvasStrokeColor,
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StrokeWidth: DefaultStrokeWidth,
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StrokeWidth: DefaultCanvasStrokeWidth,
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}
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}
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@ -477,7 +479,7 @@ func (c Chart) styleDefaultsSeries(seriesIndex int) Style {
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strokeColor := GetDefaultColor(seriesIndex)
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return Style{
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StrokeColor: strokeColor,
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StrokeWidth: DefaultStrokeWidth,
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StrokeWidth: DefaultSeriesLineWidth,
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Font: c.GetFont(),
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FontSize: DefaultFontSize,
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}
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19
defaults.go
19
defaults.go
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@ -12,8 +12,10 @@ const (
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DefaultChartHeight = 400
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// DefaultChartWidth is the default chart width.
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DefaultChartWidth = 1024
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// DefaultStrokeWidth is the default chart line/stroke width.
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DefaultStrokeWidth = 1.0
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// DefaultStrokeWidth is the default chart stroke width.
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DefaultStrokeWidth = 0.0
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// DefaultSeriesLineWidth is the default line width.
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DefaultSeriesLineWidth = 1.0
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// DefaultAxisLineWidth is the line width of the axis lines.
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DefaultAxisLineWidth = 1.0
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//DefaultDPI is the default dots per inch for the chart.
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@ -33,6 +35,11 @@ const (
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// DefaultTitleTop is the default distance from the top of the chart to put the title.
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DefaultTitleTop = 10
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// DefaultBackgroundStrokeWidth is the default stroke on the chart background.
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DefaultBackgroundStrokeWidth = 0.0
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// DefaultCanvasStrokeWidth is the default stroke on the chart canvas.
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DefaultCanvasStrokeWidth = 0.0
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// DefaultLineSpacing is the default vertical distance between lines of text.
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DefaultLineSpacing = 5
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@ -103,6 +110,9 @@ var (
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ColorAlternateYellow = drawing.Color{R: 240, G: 174, B: 90, A: 255}
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// ColorAlternateLightGray is a alternate theme color.
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ColorAlternateLightGray = drawing.Color{R: 187, G: 190, B: 191, A: 255}
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// ColorTransparent is a transparent (alpha zero) color.
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ColorTransparent = drawing.Color{R: 1, G: 1, B: 1, A: 0}
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)
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var (
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@ -171,6 +181,11 @@ var (
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DashArrayDashesLarge = []int{10, 10}
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)
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// NewColor returns a new color.
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func NewColor(r, g, b, a uint8) drawing.Color {
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return drawing.Color{R: r, G: g, B: b, A: a}
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}
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// GetDefaultColor returns a color from the default list by index.
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// NOTE: the index will wrap around (using a modulo).
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func GetDefaultColor(index int) drawing.Color {
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@ -4,8 +4,6 @@ import (
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"bufio"
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"io"
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"os"
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exception "github.com/blendlabs/go-exception"
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)
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var (
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@ -26,7 +24,7 @@ func (fu fileUtil) ReadByLines(filePath string, handler func(line string)) error
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handler(line)
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}
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} else {
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return exception.Wrap(err)
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return err
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}
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return nil
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}
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@ -46,7 +44,7 @@ func (fu fileUtil) ReadByChunks(filePath string, chunkSize int, handler func(lin
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handler(readData)
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}
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} else {
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return exception.Wrap(err)
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return err
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}
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return nil
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}
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