#include <quadsubdiv.hh>
Public Member Functions | |
virtual void | createChildren (Quad &q) const |
virtual void | removeChildren (Quad &q) const |
virtual Edge * | newEdge (const Quad &q, uint i) const |
virtual Vertex * | newVertex (const Quad &q, uint i) const |
Static Public Member Functions | |
static const QuadSubdiv4 * | instance () |
Protected Member Functions | |
virtual std::ostream & | info (std::ostream &os) const |
Returns information in an output stream. | |
Subdivision strategy for quadrilaterals which generates four children. This is the default subdivision strategy.
The children are generated by subdividing the four edges and introducing four new edges meeting in the middle of the parent quad.
Definition at line 73 of file quadsubdiv.hh.
If no children of q exist, they are created.
Implements concepts::QuadSubdivision.
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protectedvirtual |
Returns information in an output stream.
Reimplemented from concepts::OutputOperator.
Returns the ith edge which has been newly created by the subdivision. An edge which is the result of a refinement is not newly created.
Implements concepts::QuadSubdivision.
Return the ith vertex which has been newly created by the subdivision. An vertex which is the result of a refinement (ie. of an edge) is not newly created.
Implements concepts::QuadSubdivision.
If there are children, they are removed. The additional edges and vertices are removed as well.
Implements concepts::QuadSubdivision.