OpenOffice.org BASIC Guide.pdf - OpenOffice.org wiki

Using Charts in Spreadsheets 182
RangeAddress(0).EndRow = 12
Charts.addNewByName("MyChart", Rect, RangeAddress(), True, True)
Although the code used in the example may appear to be complex, the central processes
are limited to three lines. The first central line creates the Doc document variable, which
references the current spreadsheet document (Doc line = StarDesktop.CurrentComponent).
The code used in the example then creates a list containing all charts of the first
spreadsheet (Charts line = Doc.Sheets(0).Charts). Finally, in the last line, a new chart is
added to this list using the addNewByName method. This new chart is then visible to the
user. The variable RangeAddress determines the assigned cell range whose data will be
displayed within the chart. The variable Rect determines the position and size of the chart
within the first sheet in the spreadsheet document.
The previous example creates a bar chart. If a different chart type is needed, then the bar
chart must be explicitly replaced:
Chart = Charts.getByName("MyChart").embeddedObject
Chart.Diagram = Chart.createInstance("com.sun.star.chart.LineDiagram")
The first line defines the corresponding chart object. The second line replaces the current
chart with a new one — in this example, a line chart.
In Microsoft Excel, a distinction is made between charts which have been inserted as a separate page in
a Microsoft Excel document and charts which are embedded in a table page. Correspondingly, two
different access methods are defined there for charts. This distinction is not made in OpenOffice.org
Basic, because charts in OpenOffice.org Calc are always created as embedded objects of a table page.
The charts are always accessed using the Charts list of the associated Sheet object.
Source: http:/ / wiki. services. openoffice. org/ w/ index. php? title=Documentation/ BASIC_
Guide/ Charts_ in_ Spreadsheets&oldid=96887
Principal Authors: Fpe, Ccornell, Iha
The Structure of Charts
The structure of a chart, and therefore the list of services and interfaces supported by it,
depends on the chart type. For example, the methods and properties of the Z-axis, are
available in 3D charts, but not in 2D charts, and in pie charts, there are no interfaces for
working with axes.
Title, Subtitle and Legend
Title, subtitle and legend are basic elements provided for every chart. The Chart object
provides the following properties for administrating these elements:
HasMainTitle (Boolean)