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SelectByRay Method (IModelDoc2)

Selects the first object of the specified type that is intersected by a ray from point (x,y,z in meters) in direction vector (x,y,z) within a distance radius.

.NET Syntax

Visual Basic (Declaration) 
Function SelectByRay( _
   ByVal DoubleInfoIn As Object, _
   ByVal TypeWanted As Integer _
) As Boolean
Visual Basic (Usage) 
Dim instance As IModelDoc2
Dim DoubleInfoIn As Object
Dim TypeWanted As Integer
Dim value As Boolean
value = instance.SelectByRay(DoubleInfoIn, TypeWanted)
bool SelectByRay( 
   object DoubleInfoIn,
   int TypeWanted
bool SelectByRay( 
&   Object^ DoubleInfoIn,
&   int TypeWanted


Array of 7 doubles: 3 for the start point of the ray, 3 for the direction of the ray, and 1 for the radius

Type of objects to select as defined in swSelectType_e

Return Value

True if a selection is made, false if not



This method:

  • Defines a cylindrical region of infinite length that begins at pointIn, runs parallel to VectorIn, and has a radius of RadiusIn. If you specified edge or vertex entities, then the first edge or vertex found within the selection cylinder is selected.

  • Only selects entity objects, which include faces, edges, vertices, and so on. You cannot select ISketch objects using this method.

  • Does not support the selection of silhouette edges.

Only a single entity is selected within the distance radius regardless of multiple entities existing within that radius. For selecting face entities, RadiusIn is ignored and a cylinder of infinitely small radius is used.

Use model space view to determine the selection vector in a drawing.


See Also


SolidWorks 2001Plus FCS, Revision Number 10.0

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