| Popis: |
This paper researched a splicing technology for gridded curve surfaces and improved the existing splice algorithms.On the basis of Hartley Judd chord length parameters.the joint vectors on Non-Uniform Rational B-spline(NURBS) curves were gotten.Then,joint vectors and curves were used to calculate control peaks with a reverse method and the projection transformation means was taken to obtain the weight factors.Furthermore,the control peaks on splicing surfaces were adjusted based on the requirements to allow the curve surfaces to reach G1 continuity.Finally,control peaks on gridded curve surfaces were modified wholly and they were rearranged to splice the curve surfaces seamlessly.The curve surfaces after splicing were measured by a special 3D software,and the results show that the method can splice multiple surfaces into a whole under a condition of continuous G1,and the average error is 0.0049° in experiments. |
