SFDocuments.Chart service

The Chart service provides a set of properties and methods to handle charts in Calc documents. With this service it is possible to:

Chart names

Charts may have two different names:

note

The Chart service primarily uses the user-defined name to access a chart object. If it does not exist, than the internal name is used.


Service invocation

Before using the Chart service the ScriptForge library needs to be loaded or imported:

note

‚ÄĘ Basic macros require to load ScriptForge library using the following statement:
GlobalScope.BasicLibraries.loadLibrary("ScriptForge")

‚ÄĘ Python scripts require an import from scriptforge module:
from scriptforge import CreateScriptService


The Chart service is instantiated from a Calc service instance either using the Charts or CreateChart methods.

In Basic

The example below creates a Chart service instance from an existing chart in the current Calc document:


    GlobalScope.BasicLibraries.LoadLibrary("ScriptForge")
    Dim oDoc as Object, oChart as Object
    Set oDoc = CreateScriptService("Calc")
    Set oChart = oDoc.Charts("Sheet1", "Object 1")
  

The following example instantiate the Chart service by creating a new chart object based on the data contained in the range "Sheet1.A1:C10".


    Dim oDoc as Object, oChart as Object
    Set oDoc = CreateScriptService("Calc")
    Set oChart = oDoc.CreateChart("My Chart", "Sheet1", "Sheet1.A1:C10")
  
tip

Read the CreateChart method description to learn more about its arguments.


In Python

The examples above can be written in Python as follows:


    from scriptforge import CreateScriptService
    doc = CreateScriptService("Calc")
    chart = doc.Charts("Sheet1", "Object 1")
  

    doc = CreateScriptService("Calc")
    chart = doc.CreateChart("My Chart", "Sheet1", "Sheet1.A1:C10")
  

Properties

Name

Readonly

Type

Description

ChartType

No

String

Specifies the chart type as a string that can assume one of the following values: "Pie", "Bar", "Donut", "Column", "Area", "Line", "XY", "Bubble", "Net".

Deep

No

Boolean

When True indicates that the chart is three-dimensional and each series is arranged in the z-direction.

When False series are arranged considering only two dimensions.

Dim3D

No

Boolean or String

Specifies if the chart is displayed with 3D elements. If the value is a string, it must be either "Bar", "Cylinder", "Cone" or "Pyramid".

If the boolean True value is specified, then the chart is displayed using 3D bars.

Exploded

No

Numeric

Specifies how much pie segments are offset from the chart center as a percentage of the radius. Applicable to pie and donut charts only.

Filled

No

Boolean

When True, specifies a filled net chart. Applicable to net charts only.

Legend

No

Boolean

Specifies whether or not the chart has a legend.

Percent

No

Boolean

When True, chart series are stacked and each category sums up to 100%. Applicable to Area, Bar, Bubble, Column and Net charts.

Stacked

No

Boolean

When True, chart series are stacked. Applicable to Area, Bar, Bubble, Column and Net charts.

Title

No

String

Specifies the main title of the chart.

XTitle

No

String

Specifies the title of the X axis.

YTitle

No

String

Specifies the title of the Y axis.

XChartObj

Yes

UNO Object

Returns the object representing the chart, which is an instance of the ScChartObj class.

XDiagram

Yes

UNO Object

Returns the com.sun.star.chart.XDiagram object representing the diagram of the chart.

XShape

Yes

UNO Object

Returns the com.sun.star.drawing.XShape object representing the shape of the chart.

XTableChart

Yes

UNO Object

Returns the com.sun.star.table.XTableChart object representing the data being displayed in the chart.


Creating a chart

Consider the following data in the range "A1:B6" of a sheet named "Report".

A

B

1

Sample A

Sample B

2

36

40

3

39

43

4

45

40

5

52

48


The examples below in Basic and Python show how to create a line chart from this data with legends.

In Basic

    oDoc = CreateScriptService("Calc")
    oChart = oDoc.CreateChart("Samples", "Report", "Report.A1:B6")
    oChart.ChartType = "Line"
    oChart.Legend = True
    oChart.Resize(1000, 1000, 25000, 15000)
  
In Python

    doc = CreateScriptService("Calc")
    chart = doc.CreateChart("Samples", "Report", "Report.A1:B6")
    chart.ChartType = "Line"
    chart.Legend = True
    chart.Resize(1000, 1000, 25000, 15000)
  
tip

The chart does not need to be created in the same sheet where the data is located. It can be created in any existing sheet in the current file by specifying the sheet name in the second argument of the CreateChart method.


Methods

List of Methods in the Chart Service

ExportToFile

Resize


ExportToFile

Saves the chart as an image file in a specified location. Returns True if the image file could be successfully created.

Syntaksi:

chart.ExportToFile(filename: str, imagetype: str = "png", overwrite: bool = False): bool

Parametrit:

filename: Identifies the path and file name where the image will be saved. It must follow the notation defined in SF_FileSystem.FileNaming.

imagetype: The name of the image type to be created. The following values are accepted: "gif", "jpeg", "png" (default), "svg" and "tiff".

overwrite: Specifies if the destination file can be overwritten (Default = False).

Esimerkki:

In Basic

      oChart.ExportToFile("C:\Temp\myChart.svg", ImageType := "svg", Overwrite := True)
    
In Python

      chart.ExportToFile(r"C:\Temp\myChart.svg", imagetype="svg", overwrite=True)
    

Resize

Changes the position of the chart in the current sheet and modifies its width and height. Returns True if resizing was successful.

Syntaksi:

chart.Resize([xpos: int], [ypos: int], [width: int], [height: int]): bool

Parametrit:

xpos, ypos: Specify the new X and Y positions of the chart. If any of these values are omitted or if negative values are provided, the corresponding positions are left unchanged.

width: Specify the new width of the chart. If this argument is omitted or if a negative value is provided, the chart width is left unchanged.

height: Specify the new height of the chart. If this argument is omitted or if a negative value is provided, the chart height is left unchanged.

note

All arguments are provided as integer values that correspond to 1/100 of a millimeter.


Esimerkki:

In Basic

      ' Changes only X and Y position
      oChart.Rezise(1000, 3000)
      ' Changes only the chart width and height
      oChart.Resize(, , 25000, 12500)
      ' Keyword arguments are supported
      oChart.Resize(Width := 25000, Height := 12500)
    
In Python

      chart.Rezise(1000, 3000)
      chart.Resize(-1, -1, 20000, 20000)
      chart.Resize(width=25000, height=12500)
    
warning

All ScriptForge Basic routines or identifiers that are prefixed with an underscore character "_" are reserved for internal use. They are not meant be used in Basic macros or Python scripts.


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