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NAME

       SoGLLineWidthElement -

       The SoGLLineWidthElement class changes the linewidth setting of the
       OpenGL render state.

       Requests from the scenegraph to change the linewidth when rendering
       OpenGL line primitives will be made through this element, which
       forwards it to the appropriate native OpenGL call.

SYNOPSIS

       #include <Inventor/elements/SoGLLineWidthElement.h>

       Inherits SoLineWidthElement.

   Public Member Functions
       virtual void init (SoState *state)
       virtual void push (SoState *state)
       virtual void pop (SoState *state, const SoElement *prevTopElement)

   Static Public Member Functions
       static void initClass (void)

   Protected Member Functions
       virtual ~SoGLLineWidthElement ()
       virtual void setElt (float width)

Detailed Description

       The SoGLLineWidthElement class changes the linewidth setting of the
       OpenGL render state.

       Requests from the scenegraph to change the linewidth when rendering
       OpenGL line primitives will be made through this element, which
       forwards it to the appropriate native OpenGL call.

       The Coin library does not place any bounds on the values of the
       linewidths, but be aware that the range and granularity of what is
       valid linewidths depends on the underlying OpenGL implementation.
       Application programmers using line primitives (typically through the
       SoLineSet or SoIndexedLineSet nodes) should heed these boundary values.
       They can be acquired by running the following code from within a valid
       OpenGL context:

           GLfloat bounds[2];
           glGetFloatv(GL_LINE_WIDTH_RANGE, bounds);
           GLfloat granularity[1];
           glGetFloatv(GL_LINE_WIDTH_GRANULARITY, granularity);

       Another, perhaps more convenient, way of acquiring the OpenGL
       implementation limits with regard to pointsizes is to use the
       So*GLWidgetgetPointSizeLimits() method in the GUI ’glue’ interface
       library you are using (SoQt, SoXt, SoGtk, SoWin, ...).

Constructor & Destructor Documentation

   SoGLLineWidthElement::~SoGLLineWidthElement (void) [protected, virtual]
       Destructor.

Member Function Documentation

   void SoGLLineWidthElement::initClass (void) [static] Initialize relevant
       common data for all instances, like the type system.
       Reimplemented from SoLineWidthElement.

   void SoGLLineWidthElement::setElt (float value) [protected, virtual] Set
       element value.
       Reimplemented from SoFloatElement.

Author

       Generated automatically by Doxygen for Coin from the source code.