Subdivide

Applicability:

Cadcorp SIS Map Modeller
Cadcorp SIS ActiveX Modeller

Ribbon Group:

Edit-TINs

Map Window:

Conditions for use:

Item Class: TIN
Minimum number selected: 1
Minimum item status: Editable

Associated commands:

Convert to TIN
Drape Geometry
Perimeter
Merge
Snip

Description:

Subdivide subdivides the selected TIN item's faces using smooth interpolation.

A new node is added into each face of the original TIN item.

The height of each new node is calculated using the de Casteljuu algorithm on each original face.

This matches the TIN nodes and the average TIN normal at each node.

This command is useful for making TIN items appear smoother, prior to exporting to another GIS or CAD system which does not support smooth shading.

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