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35 lines
1.3 KiB
35 lines
1.3 KiB
3 years ago
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#include <tinynurbs/tinynurbs.h>
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#include <iostream>
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int main()
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{
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tinynurbs::RationalSurface<float> srf;
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srf.degree_u = 3;
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srf.degree_v = 3;
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srf.knots_u = {0, 0, 0, 0, 1, 1, 1, 1};
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srf.knots_v = {0, 0, 0, 0, 1, 1, 1, 1};
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// 2D array of control points using tinynurbs::array2<T> container
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// Example from geometrictools.com/Documentation/NURBSCircleSphere.pdf
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srf.control_points = {4, 4,
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{glm::vec3(0, 0, 1), glm::vec3(0, 0, 1), glm::vec3(0, 0, 1), glm::vec3(0, 0, 1),
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glm::vec3(2, 0, 1), glm::vec3(2, 4, 1), glm::vec3(-2, 4, 1), glm::vec3(-2, 0, 1),
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glm::vec3(2, 0, -1), glm::vec3(2, 4, -1), glm::vec3(-2, 4, -1), glm::vec3(-2, 0, -1),
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glm::vec3(0, 0, -1), glm::vec3(0, 0, -1), glm::vec3(0, 0, -1), glm::vec3(0, 0, -1)
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}
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};
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srf.weights = {4, 4,
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{1, 1.f/3.f, 1.f/3.f, 1,
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1.f/3.f, 1.f/9.f, 1.f/9.f, 1.f/3.f,
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1.f/3.f, 1.f/9.f, 1.f/9.f, 1.f/3.f,
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1, 1.f/3.f, 1.f/3.f, 1
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}
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};
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tinynurbs::RationalSurface<float> left, right;
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std::tie(left, right) = tinynurbs::surfaceSplitV<float>(srf, 0.25);
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tinynurbs::surfaceSaveOBJ("output_surface.obj", srf);
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return 0;
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}
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