OpenOffice.org BASIC Guide - OpenOffice.org wiki

The Structure of Charts
com.sun.star.chart.ChartAxisZSupplier
com.sun.star.chart.ChartTwoAxisXSupplier
com.sun.star.chart.ChartTwoAxisYSupplier
Different services are supported depending on the chart type (see Chart Types).
Wall and Floor
The chart wall is the background of the coordinate system where the data is plotted. Two chart walls usually exist
for 3D charts: one behind the plotted data and one as the left-hand or right-hand demarcation. This depends on
the rotation of the chart. 3D charts usually also have a floor.
The Diagram object provides the properties Wall and Floor:
Wall (Object)
background wall of the coordinate system (supports com.sun.star.chart.ChartArea service)
Floor (Object)
floor panel of coordinate system (only for 3D charts, supports com.sun.star.chart.ChartArea service)
The specified objects support the com.sun.star.chart.ChartArea service, which provides the usual fill and
line properties (com.sun.star.drawing.FillProperties and com.sun.star.drawing.LineProperties services, refer to
Drawings and Presentations).
The following example shows how graphics (named Sky) already contained in OpenOffice.org can be used as a
background for a chart. The wall is set to be blue.
Dim Doc As Object
Dim Charts As Object
Dim Chart as Object
Dim Rect As New com.sun.star.awt.Rectangle
Dim RangeAddress(0) As New com.sun.star.table.CellRangeAddress
Rect.X = 8000
Rect.Y = 1000
Rect.Width = 10000
Rect.Height = 7000
RangeAddress(0).Sheet = 0
RangeAddress(0).StartColumn = 0
RangeAddress(0).StartRow = 0
RangeAddress(0).EndColumn = 2
RangeAddress(0).EndRow = 12
Doc = ThisComponent
Charts = Doc.Sheets(0).Charts
Charts.addNewByName("MyChart", Rect, RangeAddress(), True, True)
Chart = Charts.getByName("MyChart").EmbeddedObject
Chart.Area.FillStyle = com.sun.star.drawing.FillStyle.BITMAP
Chart.Area.FillBitmapName = "Sky"
Chart.Area.FillBitmapMode = com.sun.star.drawing.BitmapMode.REPEAT
Chart.Diagram.Wall.FillStyle = com.sun.star.drawing.FillStyle.SOLID
Chart.Diagram.Wall.FillColor = RGB(00,132,209)
Axes
OpenOffice.org recognizes five different axes that can be used in a chart. In the simplest scenario, these are the X
and Y-axes. When working with 3D charts, a Z-axis is also sometimes provided. For charts in which the values of
the various rows of data deviate significantly from one another, OpenOffice.org provides a second X and Y-axis
for second scaling operations.
The Diagram object provides the following properties to access the axes:
134 OpenOffice.org 3.2 BASIC Guide · March 2010