Displacement items are vectors that describe the required distortion of other vector or raster data, using known control points. A collection of Displacement items is used to define a Rubber Sheet item.
Displacement items are created using Displacement
- Closed: _closed&
Does the geometry of the item form a closed loop?
- Geometry class: _classGeom$
The C++ class used to store an item's geometry. This is handled automatically. You can see what precision an item's geometry is stored with by recognising the geometry classes.
- Number of vertices: _np&
The number of vertices in the item's geometry.