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chart.go
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chart.go
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// Copyright 2016 - 2023 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 XLAM / XLSM / XLSX / XLTM / XLTX files. Supports reading and
// writing spreadsheet documents generated by Microsoft Excel™ 2007 and later.
// Supports complex components by high compatibility, and provided streaming
// API for generating or reading data from a worksheet with huge amounts of
// data. This library needs Go version 1.16 or later.
package excelize
import (
"encoding/xml"
"fmt"
"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"
Bar3DConeClustered = "bar3DConeClustered"
Bar3DConeStacked = "bar3DConeStacked"
Bar3DConePercentStacked = "bar3DConePercentStacked"
Bar3DPyramidClustered = "bar3DPyramidClustered"
Bar3DPyramidStacked = "bar3DPyramidStacked"
Bar3DPyramidPercentStacked = "bar3DPyramidPercentStacked"
Bar3DCylinderClustered = "bar3DCylinderClustered"
Bar3DCylinderStacked = "bar3DCylinderStacked"
Bar3DCylinderPercentStacked = "bar3DCylinderPercentStacked"
Col = "col"
ColStacked = "colStacked"
ColPercentStacked = "colPercentStacked"
Col3D = "col3D"
Col3DClustered = "col3DClustered"
Col3DStacked = "col3DStacked"
Col3DPercentStacked = "col3DPercentStacked"
Col3DCone = "col3DCone"
Col3DConeClustered = "col3DConeClustered"
Col3DConeStacked = "col3DConeStacked"
Col3DConePercentStacked = "col3DConePercentStacked"
Col3DPyramid = "col3DPyramid"
Col3DPyramidClustered = "col3DPyramidClustered"
Col3DPyramidStacked = "col3DPyramidStacked"
Col3DPyramidPercentStacked = "col3DPyramidPercentStacked"
Col3DCylinder = "col3DCylinder"
Col3DCylinderClustered = "col3DCylinderClustered"
Col3DCylinderStacked = "col3DCylinderStacked"
Col3DCylinderPercentStacked = "col3DCylinderPercentStacked"
Doughnut = "doughnut"
Line = "line"
Line3D = "line3D"
Pie = "pie"
Pie3D = "pie3D"
PieOfPieChart = "pieOfPie"
BarOfPieChart = "barOfPie"
Radar = "radar"
Scatter = "scatter"
Surface3D = "surface3D"
WireframeSurface3D = "wireframeSurface3D"
Contour = "contour"
WireframeContour = "wireframeContour"
Bubble = "bubble"
Bubble3D = "bubble3D"
)
// 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,
Bar3DConeClustered: 15,
Bar3DConeStacked: 15,
Bar3DConePercentStacked: 15,
Bar3DPyramidClustered: 15,
Bar3DPyramidStacked: 15,
Bar3DPyramidPercentStacked: 15,
Bar3DCylinderClustered: 15,
Bar3DCylinderStacked: 15,
Bar3DCylinderPercentStacked: 15,
Col: 0,
ColStacked: 0,
ColPercentStacked: 0,
Col3D: 15,
Col3DClustered: 15,
Col3DStacked: 15,
Col3DPercentStacked: 15,
Col3DCone: 15,
Col3DConeClustered: 15,
Col3DConeStacked: 15,
Col3DConePercentStacked: 15,
Col3DPyramid: 15,
Col3DPyramidClustered: 15,
Col3DPyramidStacked: 15,
Col3DPyramidPercentStacked: 15,
Col3DCylinder: 15,
Col3DCylinderClustered: 15,
Col3DCylinderStacked: 15,
Col3DCylinderPercentStacked: 15,
Doughnut: 0,
Line: 0,
Line3D: 20,
Pie: 0,
Pie3D: 30,
PieOfPieChart: 0,
BarOfPieChart: 0,
Radar: 0,
Scatter: 0,
Surface3D: 15,
WireframeSurface3D: 15,
Contour: 90,
WireframeContour: 90,
}
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,
Bar3DConeClustered: 20,
Bar3DConeStacked: 20,
Bar3DConePercentStacked: 20,
Bar3DPyramidClustered: 20,
Bar3DPyramidStacked: 20,
Bar3DPyramidPercentStacked: 20,
Bar3DCylinderClustered: 20,
Bar3DCylinderStacked: 20,
Bar3DCylinderPercentStacked: 20,
Col: 0,
ColStacked: 0,
ColPercentStacked: 0,
Col3D: 20,
Col3DClustered: 20,
Col3DStacked: 20,
Col3DPercentStacked: 20,
Col3DCone: 20,
Col3DConeClustered: 20,
Col3DConeStacked: 20,
Col3DConePercentStacked: 20,
Col3DPyramid: 20,
Col3DPyramidClustered: 20,
Col3DPyramidStacked: 20,
Col3DPyramidPercentStacked: 20,
Col3DCylinder: 20,
Col3DCylinderClustered: 20,
Col3DCylinderStacked: 20,
Col3DCylinderPercentStacked: 20,
Doughnut: 0,
Line: 0,
Line3D: 15,
Pie: 0,
Pie3D: 0,
PieOfPieChart: 0,
BarOfPieChart: 0,
Radar: 0,
Scatter: 0,
Surface3D: 20,
WireframeSurface3D: 20,
Contour: 0,
WireframeContour: 0,
}
plotAreaChartOverlap = map[string]int{
BarStacked: 100,
BarPercentStacked: 100,
ColStacked: 100,
ColPercentStacked: 100,
}
chartView3DPerspective = map[string]int{
Line3D: 30,
Contour: 0,
WireframeContour: 0,
}
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,
Bar3DConeClustered: 1,
Bar3DConeStacked: 1,
Bar3DConePercentStacked: 1,
Bar3DPyramidClustered: 1,
Bar3DPyramidStacked: 1,
Bar3DPyramidPercentStacked: 1,
Bar3DCylinderClustered: 1,
Bar3DCylinderStacked: 1,
Bar3DCylinderPercentStacked: 1,
Col: 0,
ColStacked: 0,
ColPercentStacked: 0,
Col3D: 1,
Col3DClustered: 1,
Col3DStacked: 1,
Col3DPercentStacked: 1,
Col3DCone: 1,
Col3DConeClustered: 1,
Col3DConeStacked: 1,
Col3DConePercentStacked: 1,
Col3DPyramid: 1,
Col3DPyramidClustered: 1,
Col3DPyramidStacked: 1,
Col3DPyramidPercentStacked: 1,
Col3DCylinder: 1,
Col3DCylinderClustered: 1,
Col3DCylinderStacked: 1,
Col3DCylinderPercentStacked: 1,
Doughnut: 0,
Line: 0,
Line3D: 0,
Pie: 0,
Pie3D: 0,
PieOfPieChart: 0,
BarOfPieChart: 0,
Radar: 0,
Scatter: 0,
Surface3D: 0,
WireframeSurface3D: 0,
Contour: 0,
Bubble: 0,
Bubble3D: 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%",
Bar3DConeClustered: "General",
Bar3DConeStacked: "General",
Bar3DConePercentStacked: "0%",
Bar3DPyramidClustered: "General",
Bar3DPyramidStacked: "General",
Bar3DPyramidPercentStacked: "0%",
Bar3DCylinderClustered: "General",
Bar3DCylinderStacked: "General",
Bar3DCylinderPercentStacked: "0%",
Col: "General",
ColStacked: "General",
ColPercentStacked: "0%",
Col3D: "General",
Col3DClustered: "General",
Col3DStacked: "General",
Col3DPercentStacked: "0%",
Col3DCone: "General",
Col3DConeClustered: "General",
Col3DConeStacked: "General",
Col3DConePercentStacked: "0%",
Col3DPyramid: "General",
Col3DPyramidClustered: "General",
Col3DPyramidStacked: "General",
Col3DPyramidPercentStacked: "0%",
Col3DCylinder: "General",
Col3DCylinderClustered: "General",
Col3DCylinderStacked: "General",
Col3DCylinderPercentStacked: "0%",
Doughnut: "General",
Line: "General",
Line3D: "General",
Pie: "General",
Pie3D: "General",
PieOfPieChart: "General",
BarOfPieChart: "General",
Radar: "General",
Scatter: "General",
Surface3D: "General",
WireframeSurface3D: "General",
Contour: "General",
WireframeContour: "General",
Bubble: "General",
Bubble3D: "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",
Bar3DConeClustered: "between",
Bar3DConeStacked: "between",
Bar3DConePercentStacked: "between",
Bar3DPyramidClustered: "between",
Bar3DPyramidStacked: "between",
Bar3DPyramidPercentStacked: "between",
Bar3DCylinderClustered: "between",
Bar3DCylinderStacked: "between",
Bar3DCylinderPercentStacked: "between",
Col: "between",
ColStacked: "between",
ColPercentStacked: "between",
Col3D: "between",
Col3DClustered: "between",
Col3DStacked: "between",
Col3DPercentStacked: "between",
Col3DCone: "between",
Col3DConeClustered: "between",
Col3DConeStacked: "between",
Col3DConePercentStacked: "between",
Col3DPyramid: "between",
Col3DPyramidClustered: "between",
Col3DPyramidStacked: "between",
Col3DPyramidPercentStacked: "between",
Col3DCylinder: "between",
Col3DCylinderClustered: "between",
Col3DCylinderStacked: "between",
Col3DCylinderPercentStacked: "between",
Doughnut: "between",
Line: "between",
Line3D: "between",
Pie: "between",
Pie3D: "between",
PieOfPieChart: "between",
BarOfPieChart: "between",
Radar: "between",
Scatter: "between",
Surface3D: "midCat",
WireframeSurface3D: "midCat",
Contour: "midCat",
WireframeContour: "midCat",
Bubble: "midCat",
Bubble3D: "midCat",
}
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",
Bar3DConeClustered: "clustered",
Bar3DConeStacked: "stacked",
Bar3DConePercentStacked: "percentStacked",
Bar3DPyramidClustered: "clustered",
Bar3DPyramidStacked: "stacked",
Bar3DPyramidPercentStacked: "percentStacked",
Bar3DCylinderClustered: "clustered",
Bar3DCylinderStacked: "stacked",
Bar3DCylinderPercentStacked: "percentStacked",
Col: "clustered",
ColStacked: "stacked",
ColPercentStacked: "percentStacked",
Col3D: "standard",
Col3DClustered: "clustered",
Col3DStacked: "stacked",
Col3DPercentStacked: "percentStacked",
Col3DCone: "standard",
Col3DConeClustered: "clustered",
Col3DConeStacked: "stacked",
Col3DConePercentStacked: "percentStacked",
Col3DPyramid: "standard",
Col3DPyramidClustered: "clustered",
Col3DPyramidStacked: "stacked",
Col3DPyramidPercentStacked: "percentStacked",
Col3DCylinder: "standard",
Col3DCylinderClustered: "clustered",
Col3DCylinderStacked: "stacked",
Col3DCylinderPercentStacked: "percentStacked",
Line: "standard",
Line3D: "standard",
}
plotAreaChartBarDir = map[string]string{
Bar: "bar",
BarStacked: "bar",
BarPercentStacked: "bar",
Bar3DClustered: "bar",
Bar3DStacked: "bar",
Bar3DPercentStacked: "bar",
Bar3DConeClustered: "bar",
Bar3DConeStacked: "bar",
Bar3DConePercentStacked: "bar",
Bar3DPyramidClustered: "bar",
Bar3DPyramidStacked: "bar",
Bar3DPyramidPercentStacked: "bar",
Bar3DCylinderClustered: "bar",
Bar3DCylinderStacked: "bar",
Bar3DCylinderPercentStacked: "bar",
Col: "col",
ColStacked: "col",
ColPercentStacked: "col",
Col3D: "col",
Col3DClustered: "col",
Col3DStacked: "col",
Col3DPercentStacked: "col",
Col3DCone: "col",
Col3DConeStacked: "col",
Col3DConeClustered: "col",
Col3DConePercentStacked: "col",
Col3DPyramid: "col",
Col3DPyramidClustered: "col",
Col3DPyramidStacked: "col",
Col3DPyramidPercentStacked: "col",
Col3DCylinder: "col",
Col3DCylinderClustered: "col",
Col3DCylinderStacked: "col",
Col3DCylinderPercentStacked: "col",
Line: "standard",
Line3D: "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",
}
valTickLblPos = map[string]string{
Contour: "none",
WireframeContour: "none",
}
)
// parseChartOptions provides a function to parse the format settings of the
// chart with default value.
func parseChartOptions(opts *Chart) (*Chart, error) {
if opts == nil {
return nil, ErrParameterInvalid
}
if opts.Dimension.Width == 0 {
opts.Dimension.Width = defaultChartDimensionWidth
}
if opts.Dimension.Height == 0 {
opts.Dimension.Height = defaultChartDimensionHeight
}
if opts.Format.PrintObject == nil {
opts.Format.PrintObject = boolPtr(true)
}
if opts.Format.Locked == nil {
opts.Format.Locked = boolPtr(false)
}
if opts.Format.ScaleX == 0 {
opts.Format.ScaleX = defaultPictureScale
}
if opts.Format.ScaleY == 0 {
opts.Format.ScaleY = defaultPictureScale
}
if opts.Legend.Position == "" {
opts.Legend.Position = defaultChartLegendPosition
}
if opts.Title.Name == "" {
opts.Title.Name = " "
}
if opts.VaryColors == nil {
opts.VaryColors = boolPtr(true)
}
if opts.ShowBlanksAs == "" {
opts.ShowBlanksAs = defaultChartShowBlanksAs
}
return opts, nil
}
// 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!$E$1:$L$15:
//
// package main
//
// import (
// "fmt"
//
// "github.com/xuri/excelize/v2"
// )
//
// func main() {
// f := excelize.NewFile()
// defer func() {
// if err := f.Close(); err != nil {
// fmt.Println(err)
// }
// }()
// for idx, row := range [][]interface{}{
// {nil, "Apple", "Orange", "Pear"}, {"Small", 2, 3, 3},
// {"Normal", 5, 2, 4}, {"Large", 6, 7, 8},
// } {
// cell, err := excelize.CoordinatesToCellName(1, idx+1)
// if err != nil {
// fmt.Println(err)
// return
// }
// f.SetSheetRow("Sheet1", cell, &row)
// }
// if err := f.AddChart("Sheet1", "E1", &excelize.Chart{
// Type: "col3DClustered",
// Series: []excelize.ChartSeries{
// {
// Name: "Sheet1!$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",
// },
// },
// Title: excelize.ChartTitle{
// Name: "Fruit 3D Clustered Column Chart",
// },
// Legend: excelize.ChartLegend{
// ShowLegendKey: false,
// },
// PlotArea: excelize.ChartPlotArea{
// ShowBubbleSize: true,
// ShowCatName: false,
// ShowLeaderLines: false,
// ShowPercent: true,
// ShowSerName: true,
// ShowVal: true,
// },
// }); err != nil {
// fmt.Println(err)
// return
// }
// // Save spreadsheet by the given path.
// if err := f.SaveAs("Book1.xlsx"); 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
// bar3DConeClustered | 3D cone clustered bar chart
// bar3DConeStacked | 3D cone stacked bar chart
// bar3DConePercentStacked | 3D cone percent bar chart
// bar3DPyramidClustered | 3D pyramid clustered bar chart
// bar3DPyramidStacked | 3D pyramid stacked bar chart
// bar3DPyramidPercentStacked | 3D pyramid percent stacked bar chart
// bar3DCylinderClustered | 3D cylinder clustered bar chart
// bar3DCylinderStacked | 3D cylinder stacked bar chart
// bar3DCylinderPercentStacked | 3D cylinder percent 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
// col3DCone | 3D cone column chart
// col3DConeClustered | 3D cone clustered column chart
// col3DConeStacked | 3D cone stacked column chart
// col3DConePercentStacked | 3D cone percent stacked column chart
// col3DPyramid | 3D pyramid column chart
// col3DPyramidClustered | 3D pyramid clustered column chart
// col3DPyramidStacked | 3D pyramid stacked column chart
// col3DPyramidPercentStacked | 3D pyramid percent stacked column chart
// col3DCylinder | 3D cylinder column chart
// col3DCylinderClustered | 3D cylinder clustered column chart
// col3DCylinderStacked | 3D cylinder stacked column chart
// col3DCylinderPercentStacked | 3D cylinder percent stacked column chart
// doughnut | doughnut chart
// line | line chart
// line3D | 3D line chart
// pie | pie chart
// pie3D | 3D pie chart
// pieOfPie | pie of pie chart
// barOfPie | bar of pie chart
// radar | radar chart
// scatter | scatter chart
// surface3D | 3D surface chart
// wireframeSurface3D | 3D wireframe surface chart
// contour | contour chart
// wireframeContour | wireframe contour chart
// bubble | bubble chart
// bubble3D | 3D bubble 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
// Line
// Marker
//
// 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$1
//
// Categories: This sets the chart category labels. The category is more or less
// the same as the X axis. In most chart types the 'Categories' property is
// optional and the chart will just assume a sequential series from 1..n.
//
// Values: This is the most important property of a series and is the only
// mandatory option for every chart object. This option links the chart with
// the worksheet data that it displays.
//
// Line: This sets the line format of the line chart. The 'Line' property is
// optional and if it isn't supplied it will default style. The options that
// can be set are width and color. The range of width is 0.25pt - 999pt. If the
// value of width is outside the range, the default width of the line is 2pt.
// The value for color should be represented in hex format
// (e.g., #000000 - #FFFFFF)
//
// Marker: This sets the marker of the line chart and scatter chart. The range
// of optional field 'Size' is 2-72 (default value is 5). The enumeration value
// of optional field 'Symbol' are (default value is 'auto'):
//
// circle
// dash
// diamond
// dot
// none
// picture
// plus
// square
// star
// triangle
// x
// auto
//
// Set properties of the chart legend. The options that can be set are:
//
// Position
// ShowLegendKey
//
// Position: Set the position of the chart legend. The default legend position
// is bottom. The available positions are:
//
// none
// top
// bottom
// left
// right
// top_right
//
// ShowLegendKey: Set the legend keys shall be shown in data labels. The default
// value is false.
//
// Set properties of the chart title. The properties that can be set are:
//
// Title
//
// Name: Set the name (title) for the chart. The name is displayed above the
// chart. The name can also be a formula such as Sheet1!$A$1 or a list with a
// sheet name. The name property is optional. The default is to have no chart
// title.
//
// Specifies how blank cells are plotted on the chart by 'ShowBlanksAs'. 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.
//
// span: Specifies that blank values shall be spanned with a line.
//
// zero: Specifies that blank values shall be treated as zero.
//
// Specifies that each data marker in the series has a different color by
// 'VaryColors'. The default value is true.
//
// 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:
//
// ShowBubbleSize
// ShowCatName
// ShowLeaderLines
// ShowPercent
// ShowSerName
// ShowVal
//
// ShowBubbleSize: Specifies the bubble size shall be shown in a data label. The
// 'ShowBubbleSize' property is optional. The default value is false.
//
// ShowCatName: Specifies that the category name shall be shown in the data
// label. The 'ShowCatName' property is optional. The default value is true.
//
// ShowLeaderLines: Specifies leader lines shall be shown for data labels. The
// 'ShowLeaderLines' property is optional. The default value is false.
//
// ShowPercent: Specifies that the percentage shall be shown in a data label.
// The 'ShowPercent' property is optional. The default value is false.
//
// ShowSerName: Specifies that the series name shall be shown in a data label.
// The 'ShowSerName' property is optional. The default value is false.
//
// ShowVal: Specifies that the value shall be shown in a data label.
// The 'ShowVal' property is optional. The default value is false.
//
// Set the primary horizontal and vertical axis options by 'XAxis' and 'YAxis'.
// The properties of XAxis that can be set are:
//
// None
// MajorGridLines
// MinorGridLines
// TickLabelSkip
// ReverseOrder
// Maximum
// Minimum
// Font
//
// The properties of 'YAxis' that can be set are:
//
// None
// MajorGridLines
// MinorGridLines
// MajorUnit
// TickLabelSkip
// ReverseOrder
// Maximum
// Minimum
// Font
//
// none: Disable axes.
//
// MajorGridLines: Specifies major grid lines.
//
// MinorGridLines: Specifies minor grid lines.
//
// MajorUnit: Specifies the distance between major ticks. Shall contain a
// positive floating-point number. The MajorUnit property is optional. The
// default value is auto.
//
// TickLabelSkip: Specifies how many tick labels to skip between label that is
// drawn. The 'TickLabelSkip' property is optional. The default value is auto.
//
// ReverseOrder: Specifies that the categories or values on reverse order
// (orientation of the chart). The ReverseOrder 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.
//
// Font: Specifies that the font of the horizontal and vertical axis. The
// properties of font that can be set are:
//
// Bold
// Italic
// Underline
// Family
// Size
// Strike
// Color
// VertAlign
//
// Set chart size by 'Dimension' property. The 'Dimension' property is optional.
// The default width is 480, and height is 290.
//
// combo: Specifies the create a chart that combines two or more chart types in
// a single chart. For example, create a clustered column - line chart with
// data Sheet1!$E$1:$L$15:
//
// package main
//
// import (
// "fmt"
//
// "github.com/xuri/excelize/v2"
// )
//
// func main() {
// f := excelize.NewFile()
// defer func() {
// if err := f.Close(); err != nil {
// fmt.Println(err)
// }
// }()
// for idx, row := range [][]interface{}{
// {nil, "Apple", "Orange", "Pear"}, {"Small", 2, 3, 3},
// {"Normal", 5, 2, 4}, {"Large", 6, 7, 8},
// } {
// cell, err := excelize.CoordinatesToCellName(1, idx+1)
// if err != nil {
// fmt.Println(err)
// return
// }
// f.SetSheetRow("Sheet1", cell, &row)
// }
// enable, disable := true, false
// if err := f.AddChart("Sheet1", "E1", &excelize.Chart{
// Type: "col",
// Series: []excelize.ChartSeries{
// {
// Name: "Sheet1!$A$2",
// Categories: "Sheet1!$B$1:$D$1",
// Values: "Sheet1!$B$2:$D$2",
// },
// },
// Format: excelize.GraphicOptions{
// ScaleX: 1,
// ScaleY: 1,
// OffsetX: 15,
// OffsetY: 10,
// PrintObject: &enable,
// LockAspectRatio: false,
// Locked: &disable,
// },
// Title: excelize.ChartTitle{
// Name: "Clustered Column - Line Chart",
// },
// Legend: excelize.ChartLegend{
// Position: "left",
// ShowLegendKey: false,
// },
// PlotArea: excelize.ChartPlotArea{
// ShowCatName: false,
// ShowLeaderLines: false,
// ShowPercent: true,
// ShowSerName: true,
// ShowVal: true,
// },
// }, &excelize.Chart{
// Type: "line",
// Series: []excelize.ChartSeries{
// {
// Name: "Sheet1!$A$4",
// Categories: "Sheet1!$B$1:$D$1",
// Values: "Sheet1!$B$4:$D$4",
// Marker: excelize.ChartMarker{
// Symbol: "none", Size: 10,
// },
// },
// },
// Format: excelize.GraphicOptions{
// ScaleX: 1,
// ScaleY: 1,
// OffsetX: 15,
// OffsetY: 10,
// PrintObject: &enable,
// LockAspectRatio: false,
// Locked: &disable,
// },
// Legend: excelize.ChartLegend{
// Position: "right",
// ShowLegendKey: false,
// },
// PlotArea: excelize.ChartPlotArea{
// ShowCatName: false,
// ShowLeaderLines: false,
// ShowPercent: true,
// ShowSerName: true,
// ShowVal: true,
// },
// }); err != nil {
// fmt.Println(err)
// return
// }
// // Save spreadsheet by the given path.
// if err := f.SaveAs("Book1.xlsx"); err != nil {
// fmt.Println(err)
// }
// }
func (f *File) AddChart(sheet, cell string, chart *Chart, combo ...*Chart) error {
// Read worksheet data
ws, err := f.workSheetReader(sheet)
if err != nil {
return err
}
opts, comboCharts, err := f.getChartOptions(chart, combo)
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(ws, drawingID, sheet, drawingXML)
drawingRels := "xl/drawings/_rels/drawing" + strconv.Itoa(drawingID) + ".xml.rels"
drawingRID := f.addRels(drawingRels, SourceRelationshipChart, "../charts/chart"+strconv.Itoa(chartID)+".xml", "")
err = f.addDrawingChart(sheet, drawingXML, cell, int(opts.Dimension.Width), int(opts.Dimension.Height), drawingRID, &opts.Format)
if err != nil {
return err
}
f.addChart(opts, comboCharts)
if err = f.addContentTypePart(chartID, "chart"); err != nil {
return err
}
_ = f.addContentTypePart(drawingID, "drawings")
f.addSheetNameSpace(sheet, SourceRelationship)
return err
}
// AddChartSheet provides the method to create a chartsheet by given chart
// format set (such as offset, scale, aspect ratio setting and print settings)
// and properties set. In Excel a chartsheet is a worksheet that only contains
// a chart.
func (f *File) AddChartSheet(sheet string, chart *Chart, combo ...*Chart) error {
// Check if the worksheet already exists
idx, err := f.GetSheetIndex(sheet)
if err != nil {
return err
}
if idx != -1 {
return ErrExistsSheet
}
opts, comboCharts, err := f.getChartOptions(chart, combo)
if err != nil {
return err
}
cs := xlsxChartsheet{
SheetViews: &xlsxChartsheetViews{
SheetView: []*xlsxChartsheetView{{ZoomScaleAttr: 100, ZoomToFitAttr: true}},
},
}
f.SheetCount++
wb, _ := f.workbookReader()
sheetID := 0
for _, v := range wb.Sheets.Sheet {
if v.SheetID > sheetID {
sheetID = v.SheetID
}
}