This thesis makes a broad and profound research on the key technique in Parametric and Variational design. Many methods is overviewed and many new techniques are also proposed.
The graph-based geometric constraint solving method proposed by C.M. Hoffmann is introduced and analyzed detailedly. Based on this, we continue to give a theoretical geometry solution of the geometry template composed by 3 points and 3 planes in 3-dimension space. The experimental numerical solution verifies the ...