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This commit is contained in:
Will Charczuk 2019-02-13 16:09:26 -08:00
parent 3cb33d48d3
commit 26eaa1d898
76 changed files with 1076 additions and 1717 deletions
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13
vector_renderer.go
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@ -11,7 +11,6 @@ import (
"github.com/golang/freetype/truetype"
"github.com/wcharczuk/go-chart/drawing"
"github.com/wcharczuk/go-chart/util"
)
// SVG returns a new png/raster renderer.
@ -30,7 +29,7 @@ func SVG(width, height int) (Renderer, error) {
// SVGWithCSS returns a new png/raster renderer with attached custom CSS
// The optional nonce argument sets a CSP nonce.
func SVGWithCSS(css string, nonce string) (func(width, height int)(Renderer, error)) {
func SVGWithCSS(css string, nonce string) func(width, height int) (Renderer, error) {
return func(width, height int) (Renderer, error) {
buffer := bytes.NewBuffer([]byte{})
canvas := newCanvas(buffer)
@ -114,8 +113,8 @@ func (vr *vectorRenderer) QuadCurveTo(cx, cy, x, y int) {
}
func (vr *vectorRenderer) ArcTo(cx, cy int, rx, ry, startAngle, delta float64) {
startAngle = util.Math.RadianAdd(startAngle, _pi2)
endAngle := util.Math.RadianAdd(startAngle, delta)
startAngle = RadianAdd(startAngle, _pi2)
endAngle := RadianAdd(startAngle, delta)
startx := cx + int(rx*math.Sin(startAngle))
starty := cy - int(ry*math.Cos(startAngle))
@ -129,7 +128,7 @@ func (vr *vectorRenderer) ArcTo(cx, cy int, rx, ry, startAngle, delta float64) {
endx := cx + int(rx*math.Sin(endAngle))
endy := cy - int(ry*math.Cos(endAngle))
dd := util.Math.RadiansToDegrees(delta)
dd := RadiansToDegrees(delta)
largeArcFlag := 0
if delta > _pi {
@ -206,7 +205,7 @@ func (vr *vectorRenderer) MeasureText(body string) (box Box) {
if vr.c.textTheta == nil {
return
}
box = box.Corners().Rotate(util.Math.RadiansToDegrees(*vr.c.textTheta)).Box()
box = box.Corners().Rotate(RadiansToDegrees(*vr.c.textTheta)).Box()
}
return
}
@ -272,7 +271,7 @@ func (c *canvas) Text(x, y int, body string, style Style) {
if c.textTheta == nil {
c.w.Write([]byte(fmt.Sprintf(`<text x="%d" y="%d" %s>%s</text>`, x, y, c.styleAsSVG(style), body)))
} else {
transform := fmt.Sprintf(` transform="rotate(%0.2f,%d,%d)"`, util.Math.RadiansToDegrees(*c.textTheta), x, y)
transform := fmt.Sprintf(` transform="rotate(%0.2f,%d,%d)"`, RadiansToDegrees(*c.textTheta), x, y)
c.w.Write([]byte(fmt.Sprintf(`<text x="%d" y="%d" %s%s>%s</text>`, x, y, c.styleAsSVG(style), transform, body)))
}
}