intersect_RayTriangle Function

  1. tem_line_module.f90
  2. tem_line_module
  3. intersect_RayTriangle

public function intersect_RayTriangle(line, triangle, intersect_p) result(isIntersect)

Function computes intersection of ray with triangle

http://geomalgorithms.com/a06-_intersect-2.html intersect_RayTriangle(): intersect a ray with a 3D triangle Input: a ray R, and a triangle T Output: *I = intersection point (when it exists) Return: -1 = triangle is degenerate (a segment or point) 0 = disjoint (no intersect) 1 = intersect in unique point I1 2 = are in the same planeint todo: when line lies in triangle, need to treat properly

Arguments

TypeIntentOptionalAttributesName
type(tem_line_type), intent(in) :: line

line segment to check for interection
type(tem_triangle_type), intent(in) :: triangle

cube to check intersection of line
type(tem_point_type), intent(out), optional :: intersect_p

intersection point if there is intersection

Return Value logical


Calls

proc~~intersect_raytriangle~~CallsGraph proc~intersect_raytriangle intersect_RayTriangle proc~cross_product3d cross_product3D proc~intersect_raytriangle->proc~cross_product3d

Contents

Variables


Variables

TypeVisibilityAttributesNameInitial
real(kind=rk), private :: u(3)
real(kind=rk), private :: v(3)
real(kind=rk), private :: n(3)
real(kind=rk), private :: dir(3)
real(kind=rk), private :: w0(3)
real(kind=rk), private :: w(3)
real(kind=rk), private :: r
real(kind=rk), private :: a
real(kind=rk), private :: b
real(kind=rk), private :: uu
real(kind=rk), private :: uv
real(kind=rk), private :: vv
real(kind=rk), private :: wu
real(kind=rk), private :: wv
real(kind=rk), private :: D
real(kind=rk), private :: s
real(kind=rk), private :: t
real(kind=rk), private :: temp_p(3)