Extrude 2D shapes and modify existing 3D extrusions with the Push Pull tool. You can hover over any shape to display handles to extrude an edge or face.
To extrude a shape, do one of the following:
- Click the Push Pull Tool button .
- Press P.
- Click Shapes > Push Pull Tool in the CityEngine main menu to open the tool.
Depending on the shape, different arrows appear. This allows you to create shapes along different directions. Hover over a direction arrow for immediate feedback. There are four types of directions, each with a unique color and mouse icon.
Face normal projected on the ground plane
Special edge directions from adjacent faces
- Use guides to snap to other shapes.
- Turn on Force New Edges in the Push Pull Tool options or press Ctrl to force the creation of new edges when extruding.
Special edge direction
When dragging along the special edge direction arrow, all edges are extended along their adjacent faces during dragging. The arrow appears with a slight offset when it has the same direction as another arrow. The table below shows the difference between the up and special edge direction dragging.
Shape is dragged directly up along the green arrow.
Shape is dragged along blue arrow extending adjacent faces.
3D shape editing
3D shapes allow polygonal editing, such as snapping, splitting, and automatic closing. Split parts can be moved to further refine the 3D model.
Final split and 3D move
3D edge move
Hover over edges with the Push Pull tool to display edge handles. Similar to dragging faces, you can drag edges in multiple directions.
Edge move along global axis
Edge move along adjacent faces
Edge move along average face normal
While moving the edges with the Push Pull tool, connected faces update to maintain planarity. In addition, the moved edge is intersected with neighboring polygons. Both features are useful for creating roofs as shown below.
The Push Pull tool includes the following options:
Distance in meters of the edge or face extrusion.
Turn snapping options on and off.
|Force New Edges|