OSGSimpleGeometry.cpp File Reference

#include <stdlib.h>
#include <stdio.h>
#include "OSGConfig.h"
#include <OSGLog.h>
#include <OSGQuaternion.h>
#include <OSGSimpleMaterial.h>
#include <OSGTriangleIterator.h>
#include "OSGSimpleGeometry.h"

Go to the source code of this file.

Namespaces
namespace	osg
Material Access
MaterialPtr	osg::getDefaultMaterial (void)
MaterialPtr	osg::getDefaultUnlitMaterial (void)
Construction functions
NodePtr	osg::makePlane (Real32 xsize, Real32 ysize, UInt16 hor, UInt16 vert)
GeometryPtr	osg::makePlaneGeo (Real32 xsize, Real32 ysize, UInt16 hor, UInt16 vert)
NodePtr	osg::makeCone (Real32 height, Real32 botradius, UInt16 sides, bool doSide, bool doBottom)
GeometryPtr	osg::makeConeGeo (Real32 height, Real32 botradius, UInt16 sides, bool doSide, bool doBottom)
NodePtr	osg::makeCylinder (Real32 height, Real32 radius, UInt16 sides, bool doSide, bool doTop, bool doBottom)
GeometryPtr	osg::makeCylinderGeo (Real32 height, Real32 radius, UInt16 sides, bool doSide, bool doTop, bool doBottom)
NodePtr	osg::makeConicalFrustum (Real32 height, Real32 topradius, Real32 botradius, UInt16 sides, bool doSide, bool doTop, bool doBottom)
GeometryPtr	osg::makeConicalFrustumGeo (Real32 height, Real32 topradius, Real32 botradius, UInt16 sides, bool doSide, bool doTop, bool doBottom)
NodePtr	osg::makeTorus (Real32 innerRadius, Real32 outerRadius, UInt16 sides, UInt16 rings)
GeometryPtr	osg::makeTorusGeo (Real32 innerRadius, Real32 outerRadius, UInt16 sides, UInt16 rings)
NodePtr	osg::makeSphere (UInt16 depth, Real32 radius)
GeometryPtr	osg::makeSphereGeo (UInt16 depth, Real32 radius)
NodePtr	osg::makeLatLongSphere (UInt16 latres, UInt16 longres, Real32 radius)
GeometryPtr	osg::makeLatLongSphereGeo (UInt16 latres, UInt16 longres, Real32 radius)
NodePtr	osg::makeBox (Real32 xsize, Real32 ysize, Real32 zsize, UInt16 hor, UInt16 vert, UInt16 depth)
GeometryPtr	osg::makeBoxGeo (Real32 xsize, Real32 ysize, Real32 zsize, UInt16 hor, UInt16 vert, UInt16 depth)
Defines
#define	X   .525731112119133606
#define	Z   .850650808352039932
Functions
Real32	setVecLen (Vec3f &vec, Real32 length)
void	addPoint (Pnt3f v, UInt32 index, Real32 radius, GeoPositions3f::StoredFieldType *p, GeoNormals3f::StoredFieldType *n, GeoTexCoords2f::StoredFieldType *tx)
void	subdivideTriangle (UInt32 i1, UInt32 i2, UInt32 i3, Int32 depth, GeoPositions3f::StoredFieldType *p, GeoNormals3f::StoredFieldType *n, GeoTexCoords2f::StoredFieldType *tx, GeoIndicesUI32::StoredFieldType *i, UInt32 &z, Real32 radius)
GeoPositions3fPtr	osg::makeGeoPositions3fPtr (UInt32 uiSize)
	some workaround functions for Windows problems
GeoIndicesUI32Ptr	osg::makeGeoIndicesUI32Ptr (UInt32 uiSize)
GeoPLengthsPtr	osg::makeGeoPLengthsPtr (UInt32 uiSize)
GeoPTypesPtr	osg::makeGeoPTypesPtr (UInt32 uiSize)
Variables
static SimpleMaterialPtr	_defaultMaterial
static SimpleMaterialPtr	_defaultUnlitMaterial

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Define Documentation

#define X   .525731112119133606

Referenced by osg::Slicer::getSlicingDirection(), and osg::makeSphereGeo().

#define Z   .850650808352039932

Referenced by osg::Slicer::getSlicingDirection(), osg::TransformationMatrix< ValueTypeT >::log(), osg::TransformationMatrix< ValueTypeT >::logOf(), and osg::makeSphereGeo().

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Function Documentation

Real32 setVecLen (  Vec3f &  vec, Real32  length )

Definition at line 683 of file OSGSimpleGeometry.cpp. References osg::VectorInterface< ValueTypeT, StorageInterfaceT >::length(). Referenced by osg::makeSphereGeo(). { Real32 len = vec.length(); if(len == 0.0) { len = 1; } else { len = length / len; } vec *= len; return length; }

void addPoint (  Pnt3f  v, UInt32  index, Real32  radius, GeoPositions3f::StoredFieldType *  p, GeoNormals3f::StoredFieldType *  n, GeoTexCoords2f::StoredFieldType *  tx )

Definition at line 699 of file OSGSimpleGeometry.cpp. References osg::Eps, osg::VectorInterface< ValueTypeT, StorageInterfaceT >::normalize(), osg::osgacos(), osg::osgatan2(), and osg::Pi. Referenced by subdivideTriangle(). { Vec3f norm(v[0], v[1], v[2]); norm.normalize(); n->push_back(norm); Pnt3f pnt(radius * norm); p->push_back(pnt); Vec2f texCoord; // Theta -> v texCoord[1] = (Pi - osgacos(norm[1])) / Pi; // Phi -> u Real32 phi = osgatan2(-norm[2], norm[0]); if (phi <= -Eps) phi += (2 * Pi); phi /= (2 * Pi); texCoord[0] = phi; tx->push_back(texCoord); }

void subdivideTriangle (  UInt32  i1, UInt32  i2, UInt32  i3, Int32  depth, GeoPositions3f::StoredFieldType *  p, GeoNormals3f::StoredFieldType *  n, GeoTexCoords2f::StoredFieldType *  tx, GeoIndicesUI32::StoredFieldType *  i, UInt32 &  z, Real32  radius )

Definition at line 729 of file OSGSimpleGeometry.cpp. References addPoint(). Referenced by osg::makeSphereGeo(). { if (depth == 0) { i->push_back(i1); i->push_back(i1); i->push_back(i2); i->push_back(i2); i->push_back(i3); i->push_back(i3); return; } Pnt3f v1 = (*p)[i1], v2 = (*p)[i2], v3 = (*p)[i3]; Pnt3f v12, v23, v31; v12 = v1 + (v2 - v1) * .5f; v23 = v2 + (v3 - v2) * .5f; v31 = v3 + (v1 - v3) * .5f; v12 /= 2.0f; v23 /= 2.0f; v31 /= 2.0f; UInt32 i12 = z++, i23 = z++, i31 = z++; addPoint(v12,i12,radius,p,n,tx); addPoint(v23,i23,radius,p,n,tx); addPoint(v31,i31,radius,p,n,tx); subdivideTriangle( i1, i12, i31, depth - 1, p,n,tx,i, z, radius); subdivideTriangle( i2, i23, i12, depth - 1, p,n,tx,i, z, radius); subdivideTriangle( i3, i31, i23, depth - 1, p,n,tx,i, z, radius); subdivideTriangle(i12, i23, i31, depth - 1, p,n,tx,i, z, radius); }

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