Triangles
triangle object and related functions.
A #GtsTriangle is defined by three #GtsEdge. They are oriented, the normal to the triangle points toward an observer seing the three edges in counter-clockwise order.
When destroying a #GtsTriangle, all the edges not used by another triangle are also destroyed. This default behaviour can be changed punctually by setting the global variable gts_allow_floating_edges to %TRUE. You must not forget to set this variable back to %FALSE as all the algorithms of GTS assume the default behaviour.
Casts @klass to #GtsTriangleClass.
@klass: a descendant of #GtsTriangleClass.
Casts @obj to #GtsTriangle.
@obj: a descendant of #GtsTriangle.
Evaluates to %TRUE if @obj is a descendant of #GtsTriangle, %FALSE otherwise.
@obj: a pointer to test.
The triangle class, just derived from #GtsObject.
@parent_class:
The triangle object.
@object: Parent object.
@e1: First edge.
@e2: Second edge.
@e3: Third edge.
@Returns:
@klass:
@e1:
@e2:
@e3:
@Returns:
@triangle:
@e1:
@e2:
@e3:
@t:
@Returns:
@t:
@Returns:
@t:
@Returns:
@t:
@x:
@y:
@z:
@t:
@t:
@Returns:
@t:
@Returns:
@t1:
@t2:
@Returns:
@t1:
@t2:
@e:
@Returns:
@klass:
@points:
@scale:
@Returns:
@t1:
@t2:
@Returns:
@t:
@Returns:
@t:
@Returns:
@t:
@e:
@v1:
@v2:
@v3:
@e1:
@e2:
@e3:
@t:
@e:
@Returns:
@t:
@v:
@Returns:
@t:
@v1:
@v2:
@v3:
Evaluates to the #GtsVertex of @t not used by @t->e1.
@t: a #GtsTriangle.
@t:
@Returns:
@e1:
@e2:
@e3:
@Returns:
@t:
@point_class:
@Returns:
@t:
@p:
@orientation:
@Returns:
@triangles:
@A:
@B:
@max:
@Returns:
@edges:
@Returns:
@t:
@p: