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Added projection of point on line

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This commit is contained in:
Magne Sjaastad 2015-12-04 11:54:29 +01:00
parent 27db48a336
commit 6d60088a5b
2 changed files with 27 additions and 1 deletions
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26
ApplicationCode/ReservoirDataModel/cvfGeometryTools.cpp
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@ -327,7 +327,31 @@ GeometryTools::inPlaneLineIntersect3D( const cvf::Vec3d& planeNormal,
//--------------------------------------------------------------------------------------------------
///
/// Compute projection of point p3 on the line p1 - p2
// If projection is out side the line segment, the end of line is returned
//--------------------------------------------------------------------------------------------------
cvf::Vec3d GeometryTools::projectPointOnLine(const cvf::Vec3d& p1, const cvf::Vec3d& p2, const cvf::Vec3d& p3, double* normalizedIntersection)
{
cvf::Vec3d v31 = p3 - p1;
cvf::Vec3d v21 = p2 - p1;
double u = (v31*v21) / (v21*v21);
cvf::Vec3d projectedPoint(0, 0, 0);
if (0 < u && u < 1) projectedPoint = p1 + u*v21;
else if (u <= 0) projectedPoint = p1;
else projectedPoint = p2;
if (normalizedIntersection)
{
*normalizedIntersection = u;
}
return projectedPoint;
}
//--------------------------------------------------------------------------------------------------
/// TODO: Use GeometryTools::projectPointOnLine
//--------------------------------------------------------------------------------------------------
double GeometryTools::linePointSquareDist(const cvf::Vec3d& p1, const cvf::Vec3d& p2, const cvf::Vec3d& p3)
{

2
ApplicationCode/ReservoirDataModel/cvfGeometryTools.h
View File

@ -36,6 +36,8 @@ class GeometryTools
public:
static cvf::Vec3d computeFaceCenter(const cvf::Vec3d& v0, const cvf::Vec3d& v1, const cvf::Vec3d& v2, const cvf::Vec3d& v3);
static cvf::Vec3d projectPointOnLine(const cvf::Vec3d& p1, const cvf::Vec3d& p2, const cvf::Vec3d& p3, double* normalizedIntersection);
static double linePointSquareDist(const cvf::Vec3d& p1, const cvf::Vec3d& p2, const cvf::Vec3d& p3);
static int intersectLineSegmentTriangle( const cvf::Vec3d p0, const cvf::Vec3d p1,
const cvf::Vec3d t0, const cvf::Vec3d t1, const cvf::Vec3d t2,