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chart.go
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// Copyright 2016 - 2019 The excelize Authors. All rights reserved. Use of
// this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//
// Package excelize providing a set of functions that allow you to write to
// and read from XLSX files. Support reads and writes XLSX file generated by
// Microsoft Excel™ 2007 and later. Support save file without losing original
// charts of XLSX. This library needs Go version 1.8 or later.
package excelize
import (
"encoding/json"
"encoding/xml"
"strconv"
"strings"
)
// This section defines the currently supported chart types.
const (
Area = "area"
AreaStacked = "areaStacked"
AreaPercentStacked = "areaPercentStacked"
Area3D = "area3D"
Area3DStacked = "area3DStacked"
Area3DPercentStacked = "area3DPercentStacked"
Bar = "bar"
BarStacked = "barStacked"
BarPercentStacked = "barPercentStacked"
Bar3DClustered = "bar3DClustered"
Bar3DStacked = "bar3DStacked"
Bar3DPercentStacked = "bar3DPercentStacked"
Col = "col"
ColStacked = "colStacked"
ColPercentStacked = "colPercentStacked"
Col3DClustered = "col3DClustered"
Col3D = "col3D"
Col3DStacked = "col3DStacked"
Col3DPercentStacked = "col3DPercentStacked"
Doughnut = "doughnut"
Line = "line"
Pie = "pie"
Pie3D = "pie3D"
Radar = "radar"
Scatter = "scatter"
)
// This section defines the default value of chart properties.
var (
chartView3DRotX = map[string]int{
Area: 0,
AreaStacked: 0,
AreaPercentStacked: 0,
Area3D: 15,
Area3DStacked: 15,
Area3DPercentStacked: 15,
Bar: 0,
BarStacked: 0,
BarPercentStacked: 0,
Bar3DClustered: 15,
Bar3DStacked: 15,
Bar3DPercentStacked: 15,
Col: 0,
ColStacked: 0,
ColPercentStacked: 0,
Col3DClustered: 15,
Col3D: 15,
Col3DStacked: 15,
Col3DPercentStacked: 15,
Doughnut: 0,
Line: 0,
Pie: 0,
Pie3D: 30,
Radar: 0,
Scatter: 0,
}
chartView3DRotY = map[string]int{
Area: 0,
AreaStacked: 0,
AreaPercentStacked: 0,
Area3D: 20,
Area3DStacked: 20,
Area3DPercentStacked: 20,
Bar: 0,
BarStacked: 0,
BarPercentStacked: 0,
Bar3DClustered: 20,
Bar3DStacked: 20,
Bar3DPercentStacked: 20,
Col: 0,
ColStacked: 0,
ColPercentStacked: 0,
Col3DClustered: 20,
Col3D: 20,
Col3DStacked: 20,
Col3DPercentStacked: 20,
Doughnut: 0,
Line: 0,
Pie: 0,
Pie3D: 0,
Radar: 0,
Scatter: 0,
}
chartView3DDepthPercent = map[string]int{
Area: 100,
AreaStacked: 100,
AreaPercentStacked: 100,
Area3D: 100,
Area3DStacked: 100,
Area3DPercentStacked: 100,
Bar: 100,
BarStacked: 100,
BarPercentStacked: 100,
Bar3DClustered: 100,
Bar3DStacked: 100,
Bar3DPercentStacked: 100,
Col: 100,
ColStacked: 100,
ColPercentStacked: 100,
Col3DClustered: 100,
Col3D: 100,
Col3DStacked: 100,
Col3DPercentStacked: 100,
Doughnut: 100,
Line: 100,
Pie: 100,
Pie3D: 100,
Radar: 100,
Scatter: 100,
}
chartView3DRAngAx = map[string]int{
Area: 0,
AreaStacked: 0,
AreaPercentStacked: 0,
Area3D: 1,
Area3DStacked: 1,
Area3DPercentStacked: 1,
Bar: 0,
BarStacked: 0,
BarPercentStacked: 0,
Bar3DClustered: 1,
Bar3DStacked: 1,
Bar3DPercentStacked: 1,
Col: 0,
ColStacked: 0,
ColPercentStacked: 0,
Col3DClustered: 1,
Col3D: 1,
Col3DStacked: 1,
Col3DPercentStacked: 1,
Doughnut: 0,
Line: 0,
Pie: 0,
Pie3D: 0,
Radar: 0,
Scatter: 0,
}
chartLegendPosition = map[string]string{
"bottom": "b",
"left": "l",
"right": "r",
"top": "t",
"top_right": "tr",
}
chartValAxNumFmtFormatCode = map[string]string{
Area: "General",
AreaStacked: "General",
AreaPercentStacked: "0%",
Area3D: "General",
Area3DStacked: "General",
Area3DPercentStacked: "0%",
Bar: "General",
BarStacked: "General",
BarPercentStacked: "0%",
Bar3DClustered: "General",
Bar3DStacked: "General",
Bar3DPercentStacked: "0%",
Col: "General",
ColStacked: "General",
ColPercentStacked: "0%",
Col3DClustered: "General",
Col3D: "General",
Col3DStacked: "General",
Col3DPercentStacked: "0%",
Doughnut: "General",
Line: "General",
Pie: "General",
Pie3D: "General",
Radar: "General",
Scatter: "General",
}
chartValAxCrossBetween = map[string]string{
Area: "midCat",
AreaStacked: "midCat",
AreaPercentStacked: "midCat",
Area3D: "midCat",
Area3DStacked: "midCat",
Area3DPercentStacked: "midCat",
Bar: "between",
BarStacked: "between",
BarPercentStacked: "between",
Bar3DClustered: "between",
Bar3DStacked: "between",
Bar3DPercentStacked: "between",
Col: "between",
ColStacked: "between",
ColPercentStacked: "between",
Col3DClustered: "between",
Col3D: "between",
Col3DStacked: "between",
Col3DPercentStacked: "between",
Doughnut: "between",
Line: "between",
Pie: "between",
Pie3D: "between",
Radar: "between",
Scatter: "between",
}
plotAreaChartGrouping = map[string]string{
Area: "standard",
AreaStacked: "stacked",
AreaPercentStacked: "percentStacked",
Area3D: "standard",
Area3DStacked: "stacked",
Area3DPercentStacked: "percentStacked",
Bar: "clustered",
BarStacked: "stacked",
BarPercentStacked: "percentStacked",
Bar3DClustered: "clustered",
Bar3DStacked: "stacked",
Bar3DPercentStacked: "percentStacked",
Col: "clustered",
ColStacked: "stacked",
ColPercentStacked: "percentStacked",
Col3DClustered: "clustered",
Col3D: "standard",
Col3DStacked: "stacked",
Col3DPercentStacked: "percentStacked",
Line: "standard",
}
plotAreaChartBarDir = map[string]string{
Bar: "bar",
BarStacked: "bar",
BarPercentStacked: "bar",
Bar3DClustered: "bar",
Bar3DStacked: "bar",
Bar3DPercentStacked: "bar",
Col: "col",
ColStacked: "col",
ColPercentStacked: "col",
Col3DClustered: "col",
Col3D: "col",
Col3DStacked: "col",
Col3DPercentStacked: "col",
Line: "standard",
}
orientation = map[bool]string{
true: "maxMin",
false: "minMax",
}
catAxPos = map[bool]string{
true: "t",
false: "b",
}
valAxPos = map[bool]string{
true: "r",
false: "l",
}
)
// parseFormatChartSet provides a function to parse the format settings of the
// chart with default value.
func parseFormatChartSet(formatSet string) (*formatChart, error) {
format := formatChart{
Dimension: formatChartDimension{
Width: 480,
Height: 290,
},
Format: formatPicture{
FPrintsWithSheet: true,
FLocksWithSheet: false,
NoChangeAspect: false,
OffsetX: 0,
OffsetY: 0,
XScale: 1.0,
YScale: 1.0,
},
Legend: formatChartLegend{
Position: "bottom",
ShowLegendKey: false,
},
Title: formatChartTitle{
Name: " ",
},
ShowBlanksAs: "gap",
}
err := json.Unmarshal([]byte(formatSet), &format)
return &format, err
}
// AddChart provides the method to add chart in a sheet by given chart format
// set (such as offset, scale, aspect ratio setting and print settings) and
// properties set. For example, create 3D clustered column chart with data
// Sheet1!$A$29:$D$32:
//
// package main
//
// import (
// "fmt"
//
// "github.com/360EntSecGroup-Skylar/excelize/v2"
// )
//
// func main() {
// categories := map[string]string{"A2": "Small", "A3": "Normal", "A4": "Large", "B1": "Apple", "C1": "Orange", "D1": "Pear"}
// values := map[string]int{"B2": 2, "C2": 3, "D2": 3, "B3": 5, "C3": 2, "D3": 4, "B4": 6, "C4": 7, "D4": 8}
// f := excelize.NewFile()
// for k, v := range categories {
// f.SetCellValue("Sheet1", k, v)
// }
// for k, v := range values {
// f.SetCellValue("Sheet1", k, v)
// }
// err := f.AddChart("Sheet1", "E1", `{"type":"col3DClustered","dimension":{"width":640,"height":480},"series":[{"name":"Sheet1!$A$2","categories":"Sheet1!$B$1:$D$1","values":"Sheet1!$B$2:$D$2"},{"name":"Sheet1!$A$3","categories":"Sheet1!$B$1:$D$1","values":"Sheet1!$B$3:$D$3"},{"name":"Sheet1!$A$4","categories":"Sheet1!$B$1:$D$1","values":"Sheet1!$B$4:$D$4"}],"format":{"x_scale":1.0,"y_scale":1.0,"x_offset":15,"y_offset":10,"print_obj":true,"lock_aspect_ratio":false,"locked":false},"legend":{"position":"bottom","show_legend_key":false},"title":{"name":"Fruit 3D Clustered Column Chart"},"plotarea":{"show_bubble_size":true,"show_cat_name":false,"show_leader_lines":false,"show_percent":true,"show_series_name":true,"show_val":true},"show_blanks_as":"zero","x_axis":{"reverse_order":true},"y_axis":{"maximum":7.5,"minimum":0.5}}`)
// if err != nil {
// fmt.Println(err)
// return
// }
// // Save xlsx file by the given path.
// err = xlsx.SaveAs("./Book1.xlsx")
// if err != nil {
// fmt.Println(err)
// }
// }
//
// The following shows the type of chart supported by excelize:
//
// Type | Chart
// ----------------------+------------------------------
// area | 2D area chart
// areaStacked | 2D stacked area chart
// areaPercentStacked | 2D 100% stacked area chart
// area3D | 3D area chart
// area3DStacked | 3D stacked area chart
// area3DPercentStacked | 3D 100% stacked area chart
// bar | 2D clustered bar chart
// barStacked | 2D stacked bar chart
// barPercentStacked | 2D 100% stacked bar chart
// bar3DClustered | 3D clustered bar chart
// bar3DStacked | 3D stacked bar chart
// bar3DPercentStacked | 3D 100% stacked bar chart
// col | 2D clustered column chart
// colStacked | 2D stacked column chart
// colPercentStacked | 2D 100% stacked column chart
// col3DClustered | 3D clustered column chart
// col3D | 3D column chart
// col3DStacked | 3D stacked column chart
// col3DPercentStacked | 3D 100% stacked column chart
// doughnut | doughnut chart
// line | line chart
// pie | pie chart
// pie3D | 3D pie chart
// radar | radar chart
// scatter | scatter chart
//
// In Excel a chart series is a collection of information that defines which data is plotted such as values, axis labels and formatting.
//
// The series options that can be set are:
//
// name
// categories
// values
//
// name: Set the name for the series. The name is displayed in the chart legend and in the formula bar. The name property is optional and if it isn't supplied it will default to Series 1..n. The name can also be a formula such as Sheet1!$A$1
//
// categories: This sets the chart category labels. The category is more or less the same as the X axis. In most chart types the categories property is optional and the chart will just assume a sequential series from 1..n.
//
// values: This is the most important property of a series and is the only mandatory option for every chart object. This option links the chart with the worksheet data that it displays.
//
// Set properties of the chart legend. The options that can be set are:
//
// position
// show_legend_key
//
// position: Set the position of the chart legend. The default legend position is right. The available positions are:
//
// top
// bottom
// left
// right
// top_right
//
// show_legend_key: Set the legend keys shall be shown in data labels. The default value is false.
//
// Set properties of the chart title. The properties that can be set are:
//
// title
//
// name: Set the name (title) for the chart. The name is displayed above the chart. The name can also be a formula such as Sheet1!$A$1 or a list with a sheetname. The name property is optional. The default is to have no chart title.
//
// Specifies how blank cells are plotted on the chart by show_blanks_as. The default value is gap. The options that can be set are:
//
// gap
// span
// zero
//
// gap: Specifies that blank values shall be left as a gap.
//
// sapn: Specifies that blank values shall be spanned with a line.
//
// zero: Specifies that blank values shall be treated as zero.
//
// Set chart offset, scale, aspect ratio setting and print settings by format, same as function AddPicture.
//
// Set the position of the chart plot area by plotarea. The properties that can be set are:
//
// show_bubble_size
// show_cat_name
// show_leader_lines
// show_percent
// show_series_name
// show_val
//
// show_bubble_size: Specifies the bubble size shall be shown in a data label. The show_bubble_size property is optional. The default value is false.
//
// show_cat_name: Specifies that the category name shall be shown in the data label. The show_cat_name property is optional. The default value is true.
//
// show_leader_lines: Specifies leader lines shall be shown for data labels. The show_leader_lines property is optional. The default value is false.
//
// show_percent: Specifies that the percentage shall be shown in a data label. The show_percent property is optional. The default value is false.
//
// show_series_name: Specifies that the series name shall be shown in a data label. The show_series_name property is optional. The default value is false.
//
// show_val: Specifies that the value shall be shown in a data label. The show_val property is optional. The default value is false.
//
// Set the primary horizontal and vertical axis options by x_axis and y_axis. The properties that can be set are:
//
// reverse_order
// maximum
// minimum
//
// reverse_order: Specifies that the categories or values on reverse order (orientation of the chart). The reverse_order property is optional. The default value is false.
//
// maximum: Specifies that the fixed maximum, 0 is auto. The maximum property is optional. The default value is auto.
//
// minimum: Specifies that the fixed minimum, 0 is auto. The minimum property is optional. The default value is auto.
//
// Set chart size by dimension property. The dimension property is optional. The default width is 480, and height is 290.
//
func (f *File) AddChart(sheet, cell, format string) error {
formatSet, err := parseFormatChartSet(format)
if err != nil {
return err
}
// Read sheet data.
xlsx, err := f.workSheetReader(sheet)
if err != nil {
return err
}
// Add first picture for given sheet, create xl/drawings/ and xl/drawings/_rels/ folder.
drawingID := f.countDrawings() + 1
chartID := f.countCharts() + 1
drawingXML := "xl/drawings/drawing" + strconv.Itoa(drawingID) + ".xml"
drawingID, drawingXML = f.prepareDrawing(xlsx, drawingID, sheet, drawingXML)
drawingRID := f.addDrawingRelationships(drawingID, SourceRelationshipChart, "../charts/chart"+strconv.Itoa(chartID)+".xml", "")
err = f.addDrawingChart(sheet, drawingXML, cell, formatSet.Dimension.Width, formatSet.Dimension.Height, drawingRID, &formatSet.Format)
if err != nil {
return err
}
f.addChart(formatSet)
f.addContentTypePart(chartID, "chart")
f.addContentTypePart(drawingID, "drawings")
return err
}
// countCharts provides a function to get chart files count storage in the
// folder xl/charts.
func (f *File) countCharts() int {
count := 0
for k := range f.XLSX {
if strings.Contains(k, "xl/charts/chart") {
count++
}
}
return count
}
// prepareDrawing provides a function to prepare drawing ID and XML by given
// drawingID, worksheet name and default drawingXML.
func (f *File) prepareDrawing(xlsx *xlsxWorksheet, drawingID int, sheet, drawingXML string) (int, string) {
sheetRelationshipsDrawingXML := "../drawings/drawing" + strconv.Itoa(drawingID) + ".xml"
if xlsx.Drawing != nil {
// The worksheet already has a picture or chart relationships, use the relationships drawing ../drawings/drawing%d.xml.
sheetRelationshipsDrawingXML = f.getSheetRelationshipsTargetByID(sheet, xlsx.Drawing.RID)
drawingID, _ = strconv.Atoi(strings.TrimSuffix(strings.TrimPrefix(sheetRelationshipsDrawingXML, "../drawings/drawing"), ".xml"))
drawingXML = strings.Replace(sheetRelationshipsDrawingXML, "..", "xl", -1)
} else {
// Add first picture for given sheet.
rID := f.addSheetRelationships(sheet, SourceRelationshipDrawingML, sheetRelationshipsDrawingXML, "")
f.addSheetDrawing(sheet, rID)
}
return drawingID, drawingXML
}
// addChart provides a function to create chart as xl/charts/chart%d.xml by
// given format sets.
func (f *File) addChart(formatSet *formatChart) {
count := f.countCharts()
xlsxChartSpace := xlsxChartSpace{
XMLNSc: NameSpaceDrawingMLChart,
XMLNSa: NameSpaceDrawingML,
XMLNSr: SourceRelationship,
XMLNSc16r2: SourceRelationshipChart201506,
Date1904: &attrValBool{Val: false},
Lang: &attrValString{Val: "en-US"},
RoundedCorners: &attrValBool{Val: false},
Chart: cChart{
Title: &cTitle{
Tx: cTx{
Rich: &cRich{
P: aP{
PPr: &aPPr{
DefRPr: aRPr{
Kern: 1200,
Strike: "noStrike",
U: "none",
Sz: 1400,
SolidFill: &aSolidFill{
SchemeClr: &aSchemeClr{
Val: "tx1",
LumMod: &attrValInt{
Val: 65000,
},
LumOff: &attrValInt{
Val: 35000,
},
},
},
Ea: &aEa{
Typeface: "+mn-ea",
},
Cs: &aCs{
Typeface: "+mn-cs",
},
Latin: &aLatin{
Typeface: "+mn-lt",
},
},
},
R: &aR{
RPr: aRPr{
Lang: "en-US",
AltLang: "en-US",
},
T: formatSet.Title.Name,
},
},
},
},
TxPr: cTxPr{
P: aP{
PPr: &aPPr{
DefRPr: aRPr{
Kern: 1200,
U: "none",
Sz: 14000,
Strike: "noStrike",
},
},
EndParaRPr: &aEndParaRPr{
Lang: "en-US",
},
},
},
},
View3D: &cView3D{
RotX: &attrValInt{Val: chartView3DRotX[formatSet.Type]},
RotY: &attrValInt{Val: chartView3DRotY[formatSet.Type]},
DepthPercent: &attrValInt{Val: chartView3DDepthPercent[formatSet.Type]},
RAngAx: &attrValInt{Val: chartView3DRAngAx[formatSet.Type]},
},
Floor: &cThicknessSpPr{
Thickness: &attrValInt{Val: 0},
},
SideWall: &cThicknessSpPr{
Thickness: &attrValInt{Val: 0},
},
BackWall: &cThicknessSpPr{
Thickness: &attrValInt{Val: 0},
},
PlotArea: &cPlotArea{},
Legend: &cLegend{
LegendPos: &attrValString{Val: chartLegendPosition[formatSet.Legend.Position]},
Overlay: &attrValBool{Val: false},
},
PlotVisOnly: &attrValBool{Val: false},
DispBlanksAs: &attrValString{Val: formatSet.ShowBlanksAs},
ShowDLblsOverMax: &attrValBool{Val: false},
},
SpPr: &cSpPr{
SolidFill: &aSolidFill{
SchemeClr: &aSchemeClr{Val: "bg1"},
},
Ln: &aLn{
W: 9525,
Cap: "flat",
Cmpd: "sng",
Algn: "ctr",
SolidFill: &aSolidFill{
SchemeClr: &aSchemeClr{Val: "tx1",
LumMod: &attrValInt{
Val: 15000,
},
LumOff: &attrValInt{
Val: 85000,
},
},
},
},
},
PrintSettings: &cPrintSettings{
PageMargins: &cPageMargins{
B: 0.75,
L: 0.7,
R: 0.7,
T: 0.7,
Header: 0.3,
Footer: 0.3,
},
},
}
plotAreaFunc := map[string]func(*formatChart) *cPlotArea{
Area: f.drawBaseChart,
AreaStacked: f.drawBaseChart,
AreaPercentStacked: f.drawBaseChart,
Area3D: f.drawBaseChart,
Area3DStacked: f.drawBaseChart,
Area3DPercentStacked: f.drawBaseChart,
Bar: f.drawBaseChart,
BarStacked: f.drawBaseChart,
BarPercentStacked: f.drawBaseChart,
Bar3DClustered: f.drawBaseChart,
Bar3DStacked: f.drawBaseChart,
Bar3DPercentStacked: f.drawBaseChart,
Col: f.drawBaseChart,
ColStacked: f.drawBaseChart,
ColPercentStacked: f.drawBaseChart,
Col3DClustered: f.drawBaseChart,
Col3D: f.drawBaseChart,
Col3DStacked: f.drawBaseChart,
Col3DPercentStacked: f.drawBaseChart,
Doughnut: f.drawDoughnutChart,
Line: f.drawLineChart,
Pie3D: f.drawPie3DChart,
Pie: f.drawPieChart,
Radar: f.drawRadarChart,
Scatter: f.drawScatterChart,
}
xlsxChartSpace.Chart.PlotArea = plotAreaFunc[formatSet.Type](formatSet)
chart, _ := xml.Marshal(xlsxChartSpace)
media := "xl/charts/chart" + strconv.Itoa(count+1) + ".xml"
f.saveFileList(media, chart)
}
// drawBaseChart provides a function to draw the c:plotArea element for bar,
// and column series charts by given format sets.
func (f *File) drawBaseChart(formatSet *formatChart) *cPlotArea {
c := cCharts{
BarDir: &attrValString{
Val: "col",
},
Grouping: &attrValString{
Val: "clustered",
},
VaryColors: &attrValBool{
Val: true,
},
Ser: f.drawChartSeries(formatSet),
DLbls: f.drawChartDLbls(formatSet),
AxID: []*attrValInt{
{Val: 754001152},
{Val: 753999904},
},
}
var ok bool
c.BarDir.Val, ok = plotAreaChartBarDir[formatSet.Type]
if !ok {
c.BarDir = nil
}
c.Grouping.Val = plotAreaChartGrouping[formatSet.Type]
if formatSet.Type == "colStacked" || formatSet.Type == "barStacked" || formatSet.Type == "barPercentStacked" || formatSet.Type == "colPercentStacked" || formatSet.Type == "areaPercentStacked" {
c.Overlap = &attrValInt{Val: 100}
}
catAx := f.drawPlotAreaCatAx(formatSet)
valAx := f.drawPlotAreaValAx(formatSet)
charts := map[string]*cPlotArea{
"area": {
AreaChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"areaStacked": {
AreaChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"areaPercentStacked": {
AreaChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"area3D": {
Area3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"area3DStacked": {
Area3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"area3DPercentStacked": {
Area3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"bar": {
BarChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"barStacked": {
BarChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"barPercentStacked": {
BarChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"bar3DClustered": {
Bar3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"bar3DStacked": {
Bar3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"bar3DPercentStacked": {
Bar3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"col": {
BarChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"colStacked": {
BarChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"colPercentStacked": {
BarChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"col3DClustered": {
Bar3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"col3D": {
Bar3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"col3DStacked": {
Bar3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
"col3DPercentStacked": {
Bar3DChart: &c,
CatAx: catAx,
ValAx: valAx,
},
}
return charts[formatSet.Type]
}
// drawDoughnutChart provides a function to draw the c:plotArea element for
// doughnut chart by given format sets.
func (f *File) drawDoughnutChart(formatSet *formatChart) *cPlotArea {
return &cPlotArea{
DoughnutChart: &cCharts{
VaryColors: &attrValBool{
Val: true,
},
Ser: f.drawChartSeries(formatSet),
HoleSize: &attrValInt{Val: 75},
},
}
}
// drawLineChart provides a function to draw the c:plotArea element for line
// chart by given format sets.
func (f *File) drawLineChart(formatSet *formatChart) *cPlotArea {
return &cPlotArea{
LineChart: &cCharts{
Grouping: &attrValString{
Val: plotAreaChartGrouping[formatSet.Type],
},
VaryColors: &attrValBool{
Val: false,
},
Ser: f.drawChartSeries(formatSet),
DLbls: f.drawChartDLbls(formatSet),
Smooth: &attrValBool{
Val: false,
},
AxID: []*attrValInt{
{Val: 754001152},
{Val: 753999904},
},
},
CatAx: f.drawPlotAreaCatAx(formatSet),
ValAx: f.drawPlotAreaValAx(formatSet),
}
}
// drawPieChart provides a function to draw the c:plotArea element for pie
// chart by given format sets.
func (f *File) drawPieChart(formatSet *formatChart) *cPlotArea {
return &cPlotArea{
PieChart: &cCharts{
VaryColors: &attrValBool{
Val: true,
},
Ser: f.drawChartSeries(formatSet),
},
}
}
// drawPie3DChart provides a function to draw the c:plotArea element for 3D
// pie chart by given format sets.
func (f *File) drawPie3DChart(formatSet *formatChart) *cPlotArea {
return &cPlotArea{
Pie3DChart: &cCharts{
VaryColors: &attrValBool{
Val: true,
},
Ser: f.drawChartSeries(formatSet),
},
}
}
// drawRadarChart provides a function to draw the c:plotArea element for radar
// chart by given format sets.
func (f *File) drawRadarChart(formatSet *formatChart) *cPlotArea {
return &cPlotArea{
RadarChart: &cCharts{
RadarStyle: &attrValString{
Val: "marker",
},
VaryColors: &attrValBool{
Val: false,
},
Ser: f.drawChartSeries(formatSet),
DLbls: f.drawChartDLbls(formatSet),
AxID: []*attrValInt{
{Val: 754001152},
{Val: 753999904},
},
},
CatAx: f.drawPlotAreaCatAx(formatSet),
ValAx: f.drawPlotAreaValAx(formatSet),
}
}
// drawScatterChart provides a function to draw the c:plotArea element for
// scatter chart by given format sets.
func (f *File) drawScatterChart(formatSet *formatChart) *cPlotArea {
return &cPlotArea{
ScatterChart: &cCharts{
ScatterStyle: &attrValString{
Val: "smoothMarker", // line,lineMarker,marker,none,smooth,smoothMarker
},
VaryColors: &attrValBool{
Val: false,
},
Ser: f.drawChartSeries(formatSet),
DLbls: f.drawChartDLbls(formatSet),
AxID: []*attrValInt{
{Val: 754001152},
{Val: 753999904},
},
},
CatAx: f.drawPlotAreaCatAx(formatSet),
ValAx: f.drawPlotAreaValAx(formatSet),
}
}
// drawChartSeries provides a function to draw the c:ser element by given
// format sets.
func (f *File) drawChartSeries(formatSet *formatChart) *[]cSer {
ser := []cSer{}
for k := range formatSet.Series {
ser = append(ser, cSer{
IDx: &attrValInt{Val: k},
Order: &attrValInt{Val: k},
Tx: &cTx{
StrRef: &cStrRef{
F: formatSet.Series[k].Name,
},
},
SpPr: f.drawChartSeriesSpPr(k, formatSet),
Marker: f.drawChartSeriesMarker(k, formatSet),
DPt: f.drawChartSeriesDPt(k, formatSet),
DLbls: f.drawChartSeriesDLbls(formatSet),
Cat: f.drawChartSeriesCat(formatSet.Series[k], formatSet),
Val: f.drawChartSeriesVal(formatSet.Series[k], formatSet),
XVal: f.drawChartSeriesXVal(formatSet.Series[k], formatSet),
YVal: f.drawChartSeriesYVal(formatSet.Series[k], formatSet),
})
}
return &ser
}
// drawChartSeriesSpPr provides a function to draw the c:spPr element by given
// format sets.
func (f *File) drawChartSeriesSpPr(i int, formatSet *formatChart) *cSpPr {
spPrScatter := &cSpPr{
Ln: &aLn{
W: 25400,
NoFill: " ",
},
}
spPrLine := &cSpPr{
Ln: &aLn{
W: 25400,
Cap: "rnd", // rnd, sq, flat
SolidFill: &aSolidFill{
SchemeClr: &aSchemeClr{Val: "accent" + strconv.Itoa(i+1)},
},
},
}
chartSeriesSpPr := map[string]*cSpPr{Area: nil, AreaStacked: nil, AreaPercentStacked: nil, Area3D: nil, Area3DStacked: nil, Area3DPercentStacked: nil, Bar: nil, BarStacked: nil, BarPercentStacked: nil, Bar3DClustered: nil, Bar3DStacked: nil, Bar3DPercentStacked: nil, Col: nil, ColStacked: nil, ColPercentStacked: nil, Col3DClustered: nil, Col3D: nil, Col3DStacked: nil, Col3DPercentStacked: nil, Doughnut: nil, Line: spPrLine, Pie: nil, Pie3D: nil, Radar: nil, Scatter: spPrScatter}
return chartSeriesSpPr[formatSet.Type]
}
// drawChartSeriesDPt provides a function to draw the c:dPt element by given
// data index and format sets.
func (f *File) drawChartSeriesDPt(i int, formatSet *formatChart) []*cDPt {
dpt := []*cDPt{{
IDx: &attrValInt{Val: i},
Bubble3D: &attrValBool{Val: false},
SpPr: &cSpPr{
SolidFill: &aSolidFill{
SchemeClr: &aSchemeClr{Val: "accent" + strconv.Itoa(i+1)},
},
Ln: &aLn{
W: 25400,
Cap: "rnd",
SolidFill: &aSolidFill{
SchemeClr: &aSchemeClr{Val: "lt" + strconv.Itoa(i+1)},
},
},
Sp3D: &aSp3D{
ContourW: 25400,
ContourClr: &aContourClr{
SchemeClr: &aSchemeClr{Val: "lt" + strconv.Itoa(i+1)},
},
},
},
}}
chartSeriesDPt := map[string][]*cDPt{Area: nil, AreaStacked: nil, AreaPercentStacked: nil, Area3D: nil, Area3DStacked: nil, Area3DPercentStacked: nil, Bar: nil, BarStacked: nil, BarPercentStacked: nil, Bar3DClustered: nil, Bar3DStacked: nil, Bar3DPercentStacked: nil, Col: nil, ColStacked: nil, ColPercentStacked: nil, Col3DClustered: nil, Col3D: nil, Col3DStacked: nil, Col3DPercentStacked: nil, Doughnut: nil, Line: nil, Pie: dpt, Pie3D: dpt, Radar: nil, Scatter: nil}
return chartSeriesDPt[formatSet.Type]
}
// drawChartSeriesCat provides a function to draw the c:cat element by given
// chart series and format sets.
func (f *File) drawChartSeriesCat(v formatChartSeries, formatSet *formatChart) *cCat {
cat := &cCat{
StrRef: &cStrRef{
F: v.Categories,
},
}
chartSeriesCat := map[string]*cCat{Area: cat, AreaStacked: cat, AreaPercentStacked: cat, Area3D: cat, Area3DStacked: cat, Area3DPercentStacked: cat, Bar: cat, BarStacked: cat, BarPercentStacked: cat, Bar3DClustered: cat, Bar3DStacked: cat, Bar3DPercentStacked: cat, Col: cat, ColStacked: cat, ColPercentStacked: cat, Col3DClustered: cat, Col3D: cat, Col3DStacked: cat, Col3DPercentStacked: cat, Doughnut: cat, Line: cat, Pie: cat, Pie3D: cat, Radar: cat, Scatter: nil}
return chartSeriesCat[formatSet.Type]
}
// drawChartSeriesVal provides a function to draw the c:val element by given
// chart series and format sets.