color maps
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parent
4f15ced303
commit
fdb1b191b2
11 changed files with 577 additions and 170 deletions
24
bar_chart.go
24
bar_chart.go
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@ -14,6 +14,8 @@ type BarChart struct {
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Title string
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TitleStyle Style
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ColorPalette ColorPalette
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Width int
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Height int
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DPI float64
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@ -407,23 +409,23 @@ func (bc BarChart) getBackgroundStyle() Style {
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func (bc BarChart) styleDefaultsBackground() Style {
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return Style{
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FillColor: DefaultBackgroundColor,
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StrokeColor: DefaultBackgroundStrokeColor,
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FillColor: bc.GetColorPalette().BackgroundColor(),
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StrokeColor: bc.GetColorPalette().BackgroundStrokeColor(),
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StrokeWidth: DefaultStrokeWidth,
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}
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}
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func (bc BarChart) styleDefaultsBar(index int) Style {
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return Style{
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StrokeColor: GetAlternateColor(index),
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StrokeColor: bc.GetColorPalette().GetSeriesColor(index),
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StrokeWidth: 3.0,
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FillColor: GetAlternateColor(index),
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FillColor: bc.GetColorPalette().GetSeriesColor(index),
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}
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}
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func (bc BarChart) styleDefaultsTitle() Style {
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return bc.TitleStyle.InheritFrom(Style{
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FontColor: DefaultTextColor,
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FontColor: bc.GetColorPalette().TextColor(),
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Font: bc.GetFont(),
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FontSize: bc.getTitleFontSize(),
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TextHorizontalAlign: TextHorizontalAlignCenter,
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@ -448,10 +450,10 @@ func (bc BarChart) getTitleFontSize() float64 {
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func (bc BarChart) styleDefaultsAxes() Style {
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return Style{
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StrokeColor: DefaultAxisColor,
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StrokeColor: bc.GetColorPalette().AxisStrokeColor(),
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Font: bc.GetFont(),
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FontSize: DefaultAxisFontSize,
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FontColor: DefaultAxisColor,
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FontColor: bc.GetColorPalette().TextColor(),
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TextHorizontalAlign: TextHorizontalAlignCenter,
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TextVerticalAlign: TextVerticalAlignTop,
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TextWrap: TextWrapWord,
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@ -463,3 +465,11 @@ func (bc BarChart) styleDefaultsElements() Style {
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Font: bc.GetFont(),
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}
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}
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// GetColorPalette returns the color palette for the chart.
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func (bc BarChart) GetColorPalette() ColorPalette {
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if bc.ColorPalette != nil {
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return bc.ColorPalette
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}
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return AlternateColorPalette
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}
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