You can find additional shape tools under Shapes in the main menu.
The Subdivide tool computes smaller shapes from selected shapes. A variety of parameters can be used to achieve different subdivision layouts.
This operation reverses the normals, in other words, orientation, of all selected faces. This step is often necessary after importing shapes with reversed orientation.
You can select a shape or multiple shapes and separate individual shapes for every face. Click Shapes > Separate Faces in the main menu. All new shapes are created in the existing shape layer.
You can combine all the faces of the selected shapes into a single shape. Click Shapes > Combine Shapes in the main menu.
The Union Shapes tool performs a Boolean union of all selected shapes. Select the shapes to be united and click Shapes > Union Shapes in the main menu.
Multiple shapes united into one shape.
- The Union Shapes tool is different from the Combine Shapes tool because it creates one face from the outline of the selected overlapping shapes.
- If the selected shapes are not intersecting or coplanar, the Combine Shapes operation is performed.
- This tool works only with planar shapes.
The Subtract Shapes tool performs a Boolean subtraction of the lead selection shape from all other selected shapes. Click Shapes > Subtract Shapes in the main menu to subtract the lead selection from the other shape. Press Shift while selecting a different shape to change the lead selection.
Selected shapes with the circle as lead selection.
Square shape after deleting the circle.
Note:This tool works only with planar shapes.
The Offset Shapes tool creates a shape, rather than a new face, inside the selected shape or multiple shapes. Select a shape or an individual face and click Shapes > Offset Shapes in the main menu.
Selected shape to create an inside offset.
Offset shape created.
New offset shape created inside previous offset shape.
Selected inner offset shape.
Offset shape with a hole after deleting the inner shape.
To manually enter an offset distance, open the Tool Options window by clicking Window > Tool Options in the CityEngine main menu.
The offset distance in meters. You can enter a value and press Enter to apply.
Removes all holes from the selected shapes.
Convert Models to Shapes
Use this tool to convert CGA models to shapes for manual editing.
After this conversion, changes in attributes and CGA rules do not affect the shapes anymore.