SbLineProjector Class Reference
[Projectors]

Line projector. More...

#include <Inventor/projectors/SbLineProjector.h>

Inheritance diagram for SbLineProjector:
SbProjector

List of all members.

Public Member Functions

 SbLineProjector ()
virtual ~SbLineProjector ()
virtual SbProjectorcopy () const
virtual SbVec3f project (const SbVec2f &point)
virtual SbBool project (const SbVec2f &point, SbVec3f &projectedPoint)
virtual SbVec3f intersect (const SbLine &line)
void setLine (const SbLine &line)
const SbLinegetLine () const
virtual SbVec3f getVector (const SbVec2f &mousePosition1, const SbVec2f &mousePosition2)
virtual SbVec3f getVector (const SbVec2f &mousePosition)
void setStartPosition (const SbVec2f &mousePosition)
void setStartPosition (const SbVec3f &point)

Detailed Description

Line projector.

SbLineProjector projects a 2D point, typically the location of the cursor, onto a 3D line.

SEE ALSO

SbCylinderProjector, SbCylinderPlaneProjector, SbCylinderSectionProjector, SbCylinderSheetProjector, SbPlaneProjector, SbSpherePlaneProjector, SbSphereProjector, SbSphereSectionProjector, SbSphereSheetProjector


Constructor & Destructor Documentation

SbLineProjector::SbLineProjector (  ) 

Constructor.

The default line passes through the origin and is aligned with the Y axis.

virtual SbLineProjector::~SbLineProjector (  )  [inline, virtual]

Destructor.


Member Function Documentation

virtual SbProjector* SbLineProjector::copy (  )  const [virtual]

Returns an instance that is a copy of this instance.

The caller is responsible for deleting the copy when done.

Implements SbProjector.

const SbLine& SbLineProjector::getLine (  )  const [inline]

Gets the line on which to project 2D points.

virtual SbVec3f SbLineProjector::getVector ( const SbVec2f mousePosition  )  [virtual]

Gets a vector given the current mouse point.

Uses the last point on this projector from the previous call to getVector() or setStartPostion(). Do not use this if the working space transform is changing since the new point will be in a different space than the old one.

virtual SbVec3f SbLineProjector::getVector ( const SbVec2f mousePosition1,
const SbVec2f mousePosition2 
) [virtual]

Gets a vector on this line given two normalized mouse points.

virtual SbVec3f SbLineProjector::intersect ( const SbLine line  )  [virtual]

Applies the projector using the given line in world coordinates, returning the point in three dimensions that it projects to.

New for v3.0.

Implements SbProjector.

virtual SbBool SbLineProjector::project ( const SbVec2f point,
SbVec3f projectedPoint 
) [virtual]

Applies the projector using the given point, returning the point in three dimensions that it projects to and the status.

The point should be normalized from 0-1, with (0,0) at the lower-left.

virtual SbVec3f SbLineProjector::project ( const SbVec2f point  )  [virtual]

Applies the projector using the given point, returning the point in three dimensions that it projects to.

The point should be normalized from 0-1, with (0,0) at the lower-left.

Implements SbProjector.

void SbLineProjector::setLine ( const SbLine line  ) 

Sets the line on which to project 2D points.

void SbLineProjector::setStartPosition ( const SbVec3f point  )  [inline]

Sets the initial position from a point on the projector.

void SbLineProjector::setStartPosition ( const SbVec2f mousePosition  )  [inline]

Sets the initial position from a mouse position.


The documentation for this class was generated from the following file:

Open Inventor Toolkit reference manual, generated on 18 Apr 2021
Copyright © Thermo Fisher Scientific All rights reserved.
http://www.openinventor.com/