Surface Border Representation (3-D)

Drawing> Properties > Attr. > Surface border representation

This function is used to visualise edges/ surface borders in different ways.

Function
	Normal The surface borders are displayed normally, irrespective of type or attachment.
	Attachment The edges are displayed in different colours, depending on the surfaces that are attached to them. white: edges with surface attached on both sides green: edges which have a surface attached on only one side red: edges with no surfaces attached to them.
	Geometric connection Edges that connect two surfaces are marked in different colours, depending on their transitional behaviour, while all other edges are marked in white. white: edge not on 2 facets green: convex red: concave light blue: tangential.

Function

Normal

The surface borders are displayed normally, irrespective of type or attachment.

Attachment

The edges are displayed in different colours, depending on the surfaces that are attached to them.

white: edges with surface attached on both sides
green: edges which have a surface attached on only one side
red: edges with no surfaces attached to them.

Geometric connection

Edges that connect two surfaces are marked in different colours, depending on their transitional behaviour, while all other edges are marked in white.

white: edge not on 2 facets
green: convex
red: concave
light blue: tangential.