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89 lines
3.9 KiB
C++
89 lines
3.9 KiB
C++
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#pragma once
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#include "cvfBase.h"
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#include "cvfVector3.h"
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#include <vector>
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namespace cvf {
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class Plane;
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};
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namespace caf {
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//==================================================================================================
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//
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//
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//==================================================================================================
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class HexGridIntersectionTools
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{
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public:
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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struct ClipVx
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{
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ClipVx();
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cvf::Vec3d vx;
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double normDistFromEdgeVx1;
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size_t clippedEdgeVx1Id;
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size_t clippedEdgeVx2Id;
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bool isVxIdsNative; //< Pointing to real vertices, or indices to ClipVx's in the supplied triangle vertices array
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int derivedVxLevel; //< Helper data to make it possible to track what set of ClipVx's the indices is reffering to in case of consecutive clips
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};
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static bool planeLineIntersect(const cvf::Plane& plane,
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const cvf::Vec3d& a,
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const cvf::Vec3d& b,
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cvf::Vec3d* intersection,
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double* normalizedDistFromA,
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double epsilon);
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static bool planeTriangleIntersection(const cvf::Plane& plane,
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const cvf::Vec3d& p1,
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size_t p1Id,
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const cvf::Vec3d& p2,
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size_t p2Id,
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const cvf::Vec3d& p3,
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size_t p3Id,
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ClipVx* newVx1,
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ClipVx* newVx2,
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bool* isMostVxesOnPositiveSide);
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static void clipTrianglesBetweenTwoParallelPlanes(const std::vector<ClipVx>& triangleVxes,
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const std::vector<int>& cellFaceForEachTriangleEdge,
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const cvf::Plane& p1Plane,
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const cvf::Plane& p2Plane,
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std::vector<ClipVx>* clippedTriangleVxes,
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std::vector<int>* cellFaceForEachClippedTriangleEdge);
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static void clipPlanarTrianglesWithInPlaneTriangle(const std::vector<cvf::Vec3d>& triangleVxes,
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const std::vector<int>& cellFaceForEachTriangleEdge,
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const cvf::Vec3d& tp1,
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const cvf::Vec3d& tp2,
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const cvf::Vec3d& tp3,
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std::vector<cvf::Vec3d>* clippedTriangleVxes,
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std::vector<int>* cellFaceForEachClippedTriangleEdge);
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static cvf::Vec3d planeLineIntersectionForMC(const cvf::Plane& plane,
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const cvf::Vec3d& p1,
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const cvf::Vec3d& p2,
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double* normalizedDistFromP1);
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static int planeHexIntersectionMC(const cvf::Plane& plane,
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const cvf::Vec3d cell[8],
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const size_t hexCornersIds[8],
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std::vector<ClipVx>* triangleVxes,
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std::vector<int>* cellFaceForEachTriangleEdge);
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};
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}; // namespace caf
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