NURBS (Non-Uniform Rational B-Spline) curve adaptive interpolation control method based on de Boor algorithm
A control method and self-adaptive technology, applied in computer control, program control, general control system, etc., can solve problems such as low interpolation efficiency, poor real-time performance, and high complexity
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[0108] Example: Use MATLAB programming to realize this algorithm. For simplicity of description, only draw a two-dimensional image in the plane, that is, let the third axis coordinate of the control point be zero, and the parameter information is as follows: times k=3, weight factor w={1, 1, 1, 1, 1, 1}, Control point information:
[0109]b={(10, 10, 0), (60, 80, 0), (100, 90, 0), (200, 20, 0), (250, 30, 0), (300, 120, 0) } Node sequence u={0, 0, 0, 0, 0.3, 0.7, 0, 0, 0, 0}, feed speed v=50mm / s, the required bow height error is set to 0.002mm, the calculated interpolation The point data is huge, and only part of the points of the beginning and ending segment fields are given.
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[0111] Table 1.
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