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author | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:19:41 +0100 |
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committer | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:19:41 +0100 |
commit | 675b4aa878f16291ce33fced48a2bc7425f635ae (patch) | |
tree | 409914df27a98f65adf866da669429c4de141b6f /src/Vector3d.cpp | |
parent | LineBlockTracer: Using the coord-based block faces. (diff) | |
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Diffstat (limited to 'src/Vector3d.cpp')
-rw-r--r-- | src/Vector3d.cpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/Vector3d.cpp b/src/Vector3d.cpp new file mode 100644 index 000000000..96ebebab5 --- /dev/null +++ b/src/Vector3d.cpp @@ -0,0 +1,77 @@ + +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules + +#include "Vector3d.h" +#include "Vector3f.h" + + + + + +const double Vector3d::EPS = 0.000001; ///< The max difference between two coords for which the coords are assumed equal +const double Vector3d::NO_INTERSECTION = 1e70; ///< Return value of LineCoeffToPlane() if the line is parallel to the plane + + + + + +Vector3d::Vector3d(const Vector3f & v) : + x(v.x), + y(v.y), + z(v.z) +{ +} + + + + + +Vector3d::Vector3d(const Vector3f * v) : + x(v->x), + y(v->y), + z(v->z) +{ +} + + + + + +double Vector3d::LineCoeffToXYPlane(const Vector3d & a_OtherEnd, double a_Z) const +{ + if (abs(z - a_OtherEnd.z) < EPS) + { + return NO_INTERSECTION; + } + return (a_Z - z) / (a_OtherEnd.z - z); +} + + + + + +double Vector3d::LineCoeffToXZPlane(const Vector3d & a_OtherEnd, double a_Y) const +{ + if (abs(y - a_OtherEnd.y) < EPS) + { + return NO_INTERSECTION; + } + return (a_Y - y) / (a_OtherEnd.y - y); +} + + + + + +double Vector3d::LineCoeffToYZPlane(const Vector3d & a_OtherEnd, double a_X) const +{ + if (abs(x - a_OtherEnd.x) < EPS) + { + return NO_INTERSECTION; + } + return (a_X - x) / (a_OtherEnd.x - x); +} + + + + |