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NAME

       SoVRMLSphere -

       The SoVRMLSphere class is used to represent a spherical 3D object.

       The detailed class documentation is taken verbatim from the VRML97
       standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium,
       and is used by permission of the Consortium:

SYNOPSIS

       #include <Inventor/VRMLnodes/SoVRMLSphere.h>

       Inherits SoVRMLGeometry.

   Public Member Functions
       SoVRMLSphere (void)
       virtual void GLRender (SoGLRenderAction *action)
       virtual void rayPick (SoRayPickAction *action)
       virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

   Static Public Member Functions
       static void initClass (void)

   Public Attributes
       SoSFFloat radius

   Protected Member Functions
       virtual ~SoVRMLSphere ()
       virtual void generatePrimitives (SoAction *action)
       virtual void computeBBox (SoAction *action, SbBox3f &box, SbVec3f
           &center)

Detailed Description

       The SoVRMLSphere class is used to represent a spherical 3D object.

       The detailed class documentation is taken verbatim from the VRML97
       standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium,
       and is used by permission of the Consortium:

         Sphere {
           field SFFloat radius  1    # (0, inf)
         }
         .fi

       The Sphere node specifies a sphere centred at (0, 0, 0) in the local coordinate system. The radius field specifies the radius of the sphere and shall be greater than zero. Figure 6.15 depicts the fields of the Sphere node.

         Figure 6.15 -- Sphere node

       When a texture is applied to a sphere, the texture covers the entire surface, wrapping counterclockwise from the back of the sphere (i.e., longitudinal arc intersecting the -Z-axis) when viewed from the top of the sphere. The texture has a seam at the back where the X=0 plane intersects the sphere and Z values are negative. TextureTransform affects the texture coordinates of the Sphere. The Sphere node’s geometry requires outside faces only. When viewed from the inside the results are undefined.

Constructor & Destructor Documentation

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

Member Function Documentation

   void SoVRMLSphere::initClass (void) [static] Sets up initialization for
       data common to all instances of this class, like submitting necessary
       information to the Coin type system.
       Reimplemented from SoVRMLGeometry.

   void SoVRMLSphere::GLRender (SoGLRenderAction * action) [virtual] Action
       method for the SoGLRenderAction.
       This is called during rendering traversals. Nodes influencing the
       rendering state in any way or who wants to throw geometry primitives at
       OpenGL overrides this method.

       Reimplemented from SoShape.

   void SoVRMLSphere::rayPick (SoRayPickAction * action) [virtual] Calculates
       picked point based on primitives generated by subclasses.
       Reimplemented from SoShape.

   void SoVRMLSphere::getPrimitiveCount (SoGetPrimitiveCountAction * action)
       [virtual] Action method for the SoGetPrimitiveCountAction.
       Calculates the number of triangle, line segment and point primitives
       for the node and adds these to the counters of the action.

       Nodes influencing how geometry nodes calculates their primitive count
       also overrides this method to change the relevant state variables.

       Reimplemented from SoShape.

   void SoVRMLSphere::generatePrimitives (SoAction * action) [protected,
       virtual] The method implements action behavior for shape nodes for
       SoCallbackAction. It is invoked from SoShape::callback(). (Subclasses
       should not override SoNode::callback().)
       The subclass implementations uses the convenience methods
       SoShape::beginShape(), SoShape::shapeVertex(), and SoShape::endShape(),
       with SoDetail instances, to pass the primitives making up the shape
       back to the caller.

       Implements SoShape.

   void SoVRMLSphere::computeBBox (SoAction * action, SbBox3f & box, SbVec3f &
       center) [protected, virtual] Implemented by SoShape subclasses to let
       the SoShape superclass know the exact size and weighted center point of
       the shape’s bounding box.
       The bounding box and center point should be calculated and returned in
       the local coordinate system.

       The method implements action behavior for shape nodes for
       SoGetBoundingBoxAction. It is invoked from SoShape::getBoundingBox().
       (Subclasses should not override SoNode::getBoundingBox().)

       The box parameter sent in is guaranteed to be an empty box, while
       center is undefined upon function entry.

       Implements SoShape.

Member Data Documentation

   SoSFFloat SoVRMLSphere::radius Sphere radius. Default value is 1.0.

Author

       Generated automatically by Doxygen for Coin from the source code.