This closes # 1704, support set the data labels position for the chart (#1755)
- Breaking change: remove the Sizes field in the ChartSeries data type
- Add new field DataLabelPosition in the ChartSeries data type, support to sets the position of the chart series data label
- Add new field BubbleSize in the Chart data type, support set the bubble size in all data series for the bubble chart or 3D bubble chart
- Add new exported ChartDataLabelPositionType data type
- Update docs and unit test for the AddChart function
- Fix a v2.7.1 regression bug, the bubble is hidden in the bubble or 3D bubble chart, commit ID: c2d6707a85
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GitHub
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dfaf418f34
21
chart.go
21
chart.go
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@ -688,11 +688,11 @@ func (opts *Chart) parseTitle() {
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//
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// Name
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// Categories
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// Sizes
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// Values
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// Fill
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// Line
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// Marker
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// DataLabelPosition
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//
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// Name: Set the name for the series. The name is displayed in the chart legend
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// and in the formula bar. The 'Name' property is optional and if it isn't
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@ -703,8 +703,6 @@ func (opts *Chart) parseTitle() {
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// the same as the X axis. In most chart types the 'Categories' property is
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// optional and the chart will just assume a sequential series from 1..n.
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//
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// Sizes: This sets the bubble size in a data series.
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//
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// Values: This is the most important property of a series and is the only
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// mandatory option for every chart object. This option links the chart with
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// the worksheet data that it displays.
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@ -733,6 +731,8 @@ func (opts *Chart) parseTitle() {
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// x
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// auto
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//
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// DataLabelPosition: This sets the position of the chart series data label.
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//
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// Set properties of the chart legend. The options that can be set are:
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//
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// Position
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@ -776,11 +776,11 @@ func (opts *Chart) parseTitle() {
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// Specifies that each data marker in the series has a different color by
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// 'VaryColors'. The default value is true.
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//
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// Set chart offset, scale, aspect ratio setting and print settings by format,
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// Set chart offset, scale, aspect ratio setting and print settings by 'Format',
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// same as function 'AddPicture'.
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//
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// Set the position of the chart plot area by PlotArea. The properties that can
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// be set are:
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// Set the position of the chart plot area by 'PlotArea'. The properties that
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// can be set are:
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//
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// SecondPlotValues
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// ShowBubbleSize
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@ -891,6 +891,15 @@ func (opts *Chart) parseTitle() {
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// Set chart size by 'Dimension' property. The 'Dimension' property is optional.
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// The default width is 480, and height is 260.
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//
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// Set the bubble size in all data series for the bubble chart or 3D bubble
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// chart by 'BubbleSizes' property. The 'BubbleSizes' property is optional.
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// The default width is 100, and the value should be great than 0 and less or
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// equal than 300.
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//
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// Set the doughnut hole size in all data series for the doughnut chart by
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// 'HoleSize' property. The 'HoleSize' property is optional. The default width
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// is 75, and the value should be great than 0 and less or equal than 90.
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//
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// combo: Specifies the create a chart that combines two or more chart types in
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// a single chart. For example, create a clustered column - line chart with
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// data Sheet1!$E$1:$L$15:
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@ -176,14 +176,14 @@ func TestAddChart(t *testing.T) {
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}
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series3 := []ChartSeries{{Name: "Sheet1!$A$30", Categories: "Sheet1!$A$30:$D$37", Values: "Sheet1!$B$30:$B$37"}}
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series4 := []ChartSeries{
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{Name: "Sheet1!$A$30", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$30:$D$30", Sizes: "Sheet1!$B$30:$D$30"},
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{Name: "Sheet1!$A$31", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$31:$D$31", Sizes: "Sheet1!$B$31:$D$31"},
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{Name: "Sheet1!$A$32", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$32:$D$32", Sizes: "Sheet1!$B$32:$D$32"},
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{Name: "Sheet1!$A$33", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$33:$D$33", Sizes: "Sheet1!$B$33:$D$33"},
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{Name: "Sheet1!$A$34", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$34:$D$34", Sizes: "Sheet1!$B$34:$D$34"},
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{Name: "Sheet1!$A$35", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$35:$D$35", Sizes: "Sheet1!$B$35:$D$35"},
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{Name: "Sheet1!$A$36", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$36:$D$36", Sizes: "Sheet1!$B$36:$D$36"},
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{Name: "Sheet1!$A$37", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$37:$D$37", Sizes: "Sheet1!$B$37:$D$37"},
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{Name: "Sheet1!$A$30", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$30:$D$30", DataLabelPosition: ChartDataLabelsPositionAbove},
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{Name: "Sheet1!$A$31", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$31:$D$31", DataLabelPosition: ChartDataLabelsPositionLeft},
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{Name: "Sheet1!$A$32", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$32:$D$32", DataLabelPosition: ChartDataLabelsPositionBestFit},
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{Name: "Sheet1!$A$33", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$33:$D$33", DataLabelPosition: ChartDataLabelsPositionCenter},
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{Name: "Sheet1!$A$34", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$34:$D$34", DataLabelPosition: ChartDataLabelsPositionInsideBase},
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{Name: "Sheet1!$A$35", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$35:$D$35", DataLabelPosition: ChartDataLabelsPositionInsideEnd},
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{Name: "Sheet1!$A$36", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$36:$D$36", DataLabelPosition: ChartDataLabelsPositionOutsideEnd},
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{Name: "Sheet1!$A$37", Categories: "Sheet1!$B$29:$D$29", Values: "Sheet1!$B$37:$D$37", DataLabelPosition: ChartDataLabelsPositionRight},
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}
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format := GraphicOptions{
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ScaleX: defaultDrawingScale,
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@ -265,7 +265,7 @@ func TestAddChart(t *testing.T) {
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{sheetName: "Sheet2", cell: "AV32", opts: &Chart{Type: Contour, Series: series, Format: format, Legend: legend, Title: []RichTextRun{{Text: "Contour Chart"}}, PlotArea: plotArea, ShowBlanksAs: "zero"}},
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{sheetName: "Sheet2", cell: "BD1", opts: &Chart{Type: WireframeContour, Series: series, Format: format, Legend: legend, Title: []RichTextRun{{Text: "Wireframe Contour Chart"}}, PlotArea: plotArea, ShowBlanksAs: "zero"}},
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// bubble chart
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{sheetName: "Sheet2", cell: "BD16", opts: &Chart{Type: Bubble, Series: series4, Format: format, Legend: legend, Title: []RichTextRun{{Text: "Bubble Chart"}}, PlotArea: plotArea, ShowBlanksAs: "zero"}},
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{sheetName: "Sheet2", cell: "BD16", opts: &Chart{Type: Bubble, Series: series4, Format: format, Legend: legend, Title: []RichTextRun{{Text: "Bubble Chart"}}, PlotArea: plotArea, ShowBlanksAs: "zero", BubbleSize: 75}},
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{sheetName: "Sheet2", cell: "BD32", opts: &Chart{Type: Bubble3D, Series: series4, Format: format, Legend: legend, Title: []RichTextRun{{Text: "Bubble 3D Chart"}}, PlotArea: plotArea, ShowBlanksAs: "zero", XAxis: ChartAxis{MajorGridLines: true}, YAxis: ChartAxis{MajorGridLines: true}}},
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// pie of pie chart
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{sheetName: "Sheet2", cell: "BD48", opts: &Chart{Type: PieOfPie, Series: series3, Format: format, Legend: legend, Title: []RichTextRun{{Text: "Pie of Pie Chart"}}, PlotArea: plotArea, ShowBlanksAs: "zero", XAxis: ChartAxis{MajorGridLines: true}, YAxis: ChartAxis{MajorGridLines: true}}},
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30
drawing.go
30
drawing.go
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@ -659,6 +659,9 @@ func (f *File) drawBubbleChart(opts *Chart) *cPlotArea {
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},
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ValAx: []*cAxs{f.drawPlotAreaCatAx(opts)[0], f.drawPlotAreaValAx(opts)[0]},
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}
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if opts.BubbleSize > 0 && opts.BubbleSize <= 300 {
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plotArea.BubbleChart.BubbleScale = &attrValFloat{Val: float64Ptr(float64(opts.BubbleSize))}
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}
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return plotArea
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}
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@ -710,7 +713,7 @@ func (f *File) drawChartSeries(opts *Chart) *[]cSer {
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SpPr: f.drawChartSeriesSpPr(k, opts),
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Marker: f.drawChartSeriesMarker(k, opts),
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DPt: f.drawChartSeriesDPt(k, opts),
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DLbls: f.drawChartSeriesDLbls(opts),
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DLbls: f.drawChartSeriesDLbls(k, opts),
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InvertIfNegative: &attrValBool{Val: boolPtr(false)},
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Cat: f.drawChartSeriesCat(opts.Series[k], opts),
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Smooth: &attrValBool{Val: boolPtr(opts.Series[k].Line.Smooth)},
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@ -885,12 +888,12 @@ func (f *File) drawChartSeriesYVal(v ChartSeries, opts *Chart) *cVal {
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// drawCharSeriesBubbleSize provides a function to draw the c:bubbleSize
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// element by given chart series and format sets.
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func (f *File) drawCharSeriesBubbleSize(v ChartSeries, opts *Chart) *cVal {
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if _, ok := map[ChartType]bool{Bubble: true, Bubble3D: true}[opts.Type]; !ok || v.Sizes == "" {
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if _, ok := map[ChartType]bool{Bubble: true, Bubble3D: true}[opts.Type]; !ok {
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return nil
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}
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return &cVal{
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NumRef: &cNumRef{
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F: v.Sizes,
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F: v.Values,
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},
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}
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}
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@ -932,16 +935,33 @@ func (f *File) drawChartDLbls(opts *Chart) *cDLbls {
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}
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}
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// inSupportedChartDataLabelsPositionType provides a method to check if an
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// element is present in an array, and return the index of its location,
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// otherwise return -1.
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func inSupportedChartDataLabelsPositionType(a []ChartDataLabelPositionType, x ChartDataLabelPositionType) int {
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for idx, n := range a {
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if x == n {
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return idx
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}
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}
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return -1
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}
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// drawChartSeriesDLbls provides a function to draw the c:dLbls element by
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// given format sets.
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func (f *File) drawChartSeriesDLbls(opts *Chart) *cDLbls {
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func (f *File) drawChartSeriesDLbls(i int, opts *Chart) *cDLbls {
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dLbls := f.drawChartDLbls(opts)
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chartSeriesDLbls := map[ChartType]*cDLbls{
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Scatter: nil, Surface3D: nil, WireframeSurface3D: nil, Contour: nil, WireframeContour: nil, Bubble: nil, Bubble3D: nil,
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Scatter: nil, Surface3D: nil, WireframeSurface3D: nil, Contour: nil, WireframeContour: nil,
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}
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if _, ok := chartSeriesDLbls[opts.Type]; ok {
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return nil
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}
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if types, ok := supportedChartDataLabelsPosition[opts.Type]; ok && opts.Series[i].DataLabelPosition != ChartDataLabelsPositionUnset {
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if inSupportedChartDataLabelsPositionType(types, opts.Series[i].DataLabelPosition) != -1 {
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dLbls.DLblPos = &attrValString{Val: stringPtr(chartDataLabelsPositionTypes[opts.Series[i].DataLabelPosition])}
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}
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}
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return dLbls
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}
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48
templates.go
48
templates.go
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@ -217,6 +217,54 @@ const (
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ColorMappingTypeUnset int = -1
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)
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// ChartDataLabelPositionType is the type of chart data labels position.
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type ChartDataLabelPositionType byte
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// Chart data labels positions types enumeration.
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const (
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ChartDataLabelsPositionUnset ChartDataLabelPositionType = iota
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ChartDataLabelsPositionBestFit
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ChartDataLabelsPositionBelow
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ChartDataLabelsPositionCenter
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ChartDataLabelsPositionInsideBase
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ChartDataLabelsPositionInsideEnd
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ChartDataLabelsPositionLeft
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ChartDataLabelsPositionOutsideEnd
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ChartDataLabelsPositionRight
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ChartDataLabelsPositionAbove
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)
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// chartDataLabelsPositionTypes defined supported chart data labels position
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// types.
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var chartDataLabelsPositionTypes = map[ChartDataLabelPositionType]string{
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ChartDataLabelsPositionBestFit: "bestFit",
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ChartDataLabelsPositionBelow: "b",
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ChartDataLabelsPositionCenter: "ctr",
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ChartDataLabelsPositionInsideBase: "inBase",
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ChartDataLabelsPositionInsideEnd: "inEnd",
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ChartDataLabelsPositionLeft: "l",
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ChartDataLabelsPositionOutsideEnd: "outEnd",
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ChartDataLabelsPositionRight: "r",
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ChartDataLabelsPositionAbove: "t",
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}
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// supportedChartDataLabelsPosition defined supported chart data labels position
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// types for each type of chart.
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var supportedChartDataLabelsPosition = map[ChartType][]ChartDataLabelPositionType{
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Bar: {ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideBase, ChartDataLabelsPositionInsideEnd, ChartDataLabelsPositionOutsideEnd},
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BarStacked: {ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideBase, ChartDataLabelsPositionInsideEnd},
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BarPercentStacked: {ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideBase, ChartDataLabelsPositionInsideEnd},
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Col: {ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideBase, ChartDataLabelsPositionInsideEnd, ChartDataLabelsPositionOutsideEnd},
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ColStacked: {ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideBase, ChartDataLabelsPositionInsideEnd},
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ColPercentStacked: {ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideBase, ChartDataLabelsPositionInsideEnd},
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Line: {ChartDataLabelsPositionBelow, ChartDataLabelsPositionCenter, ChartDataLabelsPositionLeft, ChartDataLabelsPositionRight, ChartDataLabelsPositionAbove},
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Pie: {ChartDataLabelsPositionBestFit, ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideEnd, ChartDataLabelsPositionOutsideEnd},
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Pie3D: {ChartDataLabelsPositionBestFit, ChartDataLabelsPositionCenter, ChartDataLabelsPositionInsideEnd, ChartDataLabelsPositionOutsideEnd},
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Scatter: {ChartDataLabelsPositionBelow, ChartDataLabelsPositionCenter, ChartDataLabelsPositionLeft, ChartDataLabelsPositionRight, ChartDataLabelsPositionAbove},
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Bubble: {ChartDataLabelsPositionBelow, ChartDataLabelsPositionCenter, ChartDataLabelsPositionLeft, ChartDataLabelsPositionRight, ChartDataLabelsPositionAbove},
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Bubble3D: {ChartDataLabelsPositionBelow, ChartDataLabelsPositionCenter, ChartDataLabelsPositionLeft, ChartDataLabelsPositionRight, ChartDataLabelsPositionAbove},
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}
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const (
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defaultTempFileSST = "sharedStrings"
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defaultXMLPathCalcChain = "xl/calcChain.xml"
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@ -483,6 +483,7 @@ type cNumCache struct {
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// the specific formatting and positioning settings.
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type cDLbls struct {
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NumFmt *cNumFmt `xml:"numFmt"`
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DLblPos *attrValString `xml:"dLblPos"`
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ShowLegendKey *attrValBool `xml:"showLegendKey"`
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ShowVal *attrValBool `xml:"showVal"`
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ShowCatName *attrValBool `xml:"showCatName"`
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@ -577,6 +578,7 @@ type Chart struct {
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PlotArea ChartPlotArea
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Border ChartLine
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ShowBlanksAs string
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BubbleSize int
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HoleSize int
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order int
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}
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@ -604,9 +606,9 @@ type ChartLine struct {
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type ChartSeries struct {
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Name string
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Categories string
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Sizes string
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Values string
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Fill Fill
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Line ChartLine
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Marker ChartMarker
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DataLabelPosition ChartDataLabelPositionType
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}
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