CADIntersectLine Method

Description

Intersect the CAD model with a line. For multiple intersection points, the point returned depends on the line intersection flags. Geometry that is on a hidden level or a hidden assembly component is not checked.

Syntax

Visual Basic
Public Function CADIntersectLine( _ ByVal linePointX As Double, _ ByVal linePointY As Double, _ ByVal linePointZ As Double, _ ByVal lineVectorI As Double, _ ByVal lineVectorJ As Double, _ ByVal lineVectorK As Double, _ ByVal geometryFilterFlags As ENUM_CAD_GEOMETRY_FILTER_FLAGS, _ ByVal vectorOption As ENUM_CAD_VECTOR_OPTION, _ ByVal surfaceBoundaryOption As ENUM_CAD_SURFACE_BOUNDARY_OPTION, _ ByVal lineIntersectFlags As ENUM_CAD_LINE_INTERSECT_FLAGS, _ ByRef pIntersectPointX As Double, _ ByRef pIntersectPointY As Double, _ ByRef pIntersectPointZ As Double, _ ByRef pIntersectVectorI As Double, _ ByRef pIntersectVectorJ As Double, _ ByRef pIntersectVectorK As Double, _ ByRef pCadHandle As CadHandle _ ) As ENUM_CAD_RESULT

Visual Basic

Public Function CADIntersectLine( _
   ByVal linePointX As Double, _
   ByVal linePointY As Double, _
   ByVal linePointZ As Double, _
   ByVal lineVectorI As Double, _
   ByVal lineVectorJ As Double, _
   ByVal lineVectorK As Double, _
   ByVal geometryFilterFlags As ENUM_CAD_GEOMETRY_FILTER_FLAGS, _
   ByVal vectorOption As ENUM_CAD_VECTOR_OPTION, _
   ByVal surfaceBoundaryOption As ENUM_CAD_SURFACE_BOUNDARY_OPTION, _
   ByVal lineIntersectFlags As ENUM_CAD_LINE_INTERSECT_FLAGS, _
   ByRef pIntersectPointX As Double, _
   ByRef pIntersectPointY As Double, _
   ByRef pIntersectPointZ As Double, _
   ByRef pIntersectVectorI As Double, _
   ByRef pIntersectVectorJ As Double, _
   ByRef pIntersectVectorK As Double, _
   ByRef pCadHandle As CadHandle _
) As ENUM_CAD_RESULT

Parameters

linePointX

linePointY

linePointZ

lineVectorI

lineVectorJ

lineVectorK

geometryFilterFlags

Value	Description
CAD_ALL_GEOMETRY	Test all geometry
CAD_CURVE_GEOMETRY	Only test curve geometry
CAD_POINT_GEOMETRY	Only test point geometry
CAD_SURFACE_GEOMETRY	Only test surface geometry

vectorOption

Value	Description
CAD_RETURN_NORMAL_TO_CURVES	Return the normal to curves or, for surface boundaries, the surface normal. The curve normal is defined as the curve's second derivative vector negated.
CAD_RETURN_TANGENT_TO_CURVES	Return the tangent to curves (including boundaries). This is the default option.

surfaceBoundaryOption

Value	Description
CAD_SURFACE_BOUNDARIES	For surfaces, constrain the result to the surface boundaries (inner or outer). Does not affect curves.
CAD_SURFACE_DEFAULT	For surfaces, constrain the result to the surface itself, within the surface boundaries. Does not affect curves. This is the default option.
CAD_SURFACE_OUTER_BOUNDARIES	For surfaces, constrain the result to the outer surface boundary. Does not affect curves.

lineIntersectFlags

Value	Description
CAD_INTERSECT_CLOSEST_ORIGIN	Return intersection closest to the line point. By default, the intersection at the maximum line parameter is returned.
CAD_POSITIVE_PARAMETER_INTERSECTIONS_ONLY	Only return intersections at positive line parameters (treat the line as a ray).

pIntersectPointX

pIntersectPointY

pIntersectPointZ

pIntersectVectorI

pIntersectVectorJ

pIntersectVectorK

pCadHandle