Rotating and Shearing

OpenOffice.org Developer's Guide

Drawing Documents and Presentation Documents

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• Example: Creating a Simple Organizational Chart

• Handling Drawing Document Files

• Saving Drawing Documents

• Storing
• Exporting
• Filter Options

• Printing Drawing Documents

• Working with Drawing Documents

• Shapes

• Shape Types
• Bezier Shapes
• Shape Operations

• Moving and Scaling
• Rotating and Shearing
• Transforming
• Ordering
• Grouping, Combining and Binding
• General Drawing Properties
• Glue Points and Connectors
• Layer Handling

• Inserting Files
• Navigating

• Handling Presentation Document Files

• Printing Presentation Documents

• Working with Presentation Documents

• Presentation Settings

• Custom Slide Show
• Presentation Effects
• Slide Transition
• Animations and Interactions

• Overall Document Features

• Settings
• Page Formatting

• Drawing and Presentation Document Controller

• Setting the Current Page
• Zooming
• Other Drawing Specific View Settings

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Most shapes, except OLE and group objects, can be rotated and sheared. All of these objects include the com.sun.star.drawing.RotationDescriptor service that has the properties RotateAngle and ShearAngle.

Setting the com.sun.star.drawing.RotationDescriptor rotates or shears a shape:

Properties of com.sun.star.drawing.RotationDescriptor
RotateAngle	long - This is the angle for rotation of this shape in 1/100th of a degree. The shape is rotated counter-clockwise around the center of the bounding box.
ShearAngle	long - This is the amount of shearing for this shape in 1/100th of a degree. The shape is sheared clockwise around the center of the bounding box.

Notice that the rotation works counter-clockwise, while shearing works clockwise.

Rotation and Shearing by 25 degrees

The following example shows how a shape can be rotated by 25 degrees counterclockwise:

  // xShape will be rotated by 25 degrees
      XPropertySet xPropSet = (XPropertySet)UnoRuntime.queryInterface(
          XPropertySet.class, xShape );
      xPropSet.setPropertyValue( "RotateAngle", new Integer( 2500 ) );

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