osgToy::OctoStrip::OctoStrip()
{
osg::Vec3Array* vAry = dynamic_cast<osg::Vec3Array*>( getVertexArray() );
osg::Vec3Array* nAry = dynamic_cast<osg::Vec3Array*>( getNormalArray() );
setNormalBinding( osg::Geometry::BIND_PER_VERTEX );
osg::Vec4Array* cAry = dynamic_cast<osg::Vec4Array*>( getColorArray() );
setColorBinding( osg::Geometry::BIND_PER_VERTEX );
osg::Vec3 xp( 1, 0, 0); osg::Vec4 red(1,0,0,1);
osg::Vec3 xn(-1, 0, 0); osg::Vec4 cyan(0,1,1,1);
osg::Vec3 yp( 0, 1, 0); osg::Vec4 green(0,1,0,1);
osg::Vec3 yn( 0,-1, 0); osg::Vec4 magenta(1,0,1,1);
osg::Vec3 zp( 0, 0, 1); osg::Vec4 blue(0,0,1,1);
osg::Vec3 zn( 0, 0,-1); osg::Vec4 yellow(1,1,0,1);
vAry->push_back(zp); nAry->push_back(zp); cAry->push_back(blue);
vAry->push_back(yp); nAry->push_back(yp); cAry->push_back(green);
vAry->push_back(xn); nAry->push_back(xn); cAry->push_back(cyan);
vAry->push_back(zn); nAry->push_back(zn); cAry->push_back(yellow);
vAry->push_back(yn); nAry->push_back(yn); cAry->push_back(magenta);
vAry->push_back(xp); nAry->push_back(xp); cAry->push_back(red);
vAry->push_back(zp); nAry->push_back(zp); cAry->push_back(blue);
vAry->push_back(yp); nAry->push_back(yp); cAry->push_back(green);
addPrimitiveSet( new osg::DrawArrays( GL_TRIANGLE_STRIP, 0, vAry->size() ) );
}
void osgToy::ColorOriginTetra::addTriangle(
const osg::Vec3& v0, const osg::Vec3& v1, const osg::Vec3& v2 )
{
osg::Vec3Array* vAry = dynamic_cast<osg::Vec3Array*>( getVertexArray() );
osg::Vec3Array* nAry = dynamic_cast<osg::Vec3Array*>( getNormalArray() );
osg::Vec4Array* cAry = dynamic_cast<osg::Vec4Array*>( getColorArray() );
osg::Vec3 norm = (v1-v0) ^ (v2-v0);
norm.normalize();
nAry->push_back( norm );
vAry->push_back( v0 ); cAry->push_back( osg::Vec4(v0,1) );
vAry->push_back( v1 ); cAry->push_back( osg::Vec4(v1,1) );
vAry->push_back( v2 ); cAry->push_back( osg::Vec4(v2,1) );
}
osgToy::TetraStrip::TetraStrip()
{
osg::Vec3Array* vAry = dynamic_cast<osg::Vec3Array*>( getVertexArray() );
osg::Vec3Array* nAry = dynamic_cast<osg::Vec3Array*>( getNormalArray() );
setNormalBinding( osg::Geometry::BIND_PER_VERTEX );
osg::Vec4Array* cAry = dynamic_cast<osg::Vec4Array*>( getColorArray() );
setColorBinding( osg::Geometry::BIND_PER_VERTEX );
osg::Vec3 ppp( 1, 1, 1); osg::Vec4 white(1,1,1,1);
osg::Vec3 nnp( -1, -1, 1); osg::Vec4 blue(0,0,1,1);
osg::Vec3 pnn( 1, -1, -1); osg::Vec4 red(1,0,0,1);
osg::Vec3 npn( -1, 1, -1); osg::Vec4 green(0,1,0,1);
osg::Vec3 ppn( 1, 1, -1); osg::Vec4 yellow(1,1,0,1);
osg::Vec3 pnp( 1, -1, 1); osg::Vec4 magenta(1,0,1,1);
osg::Vec3 nnn( -1, -1, -1); osg::Vec4 black(0,0,0,1);
osg::Vec3 npp( -1, 1, 1); osg::Vec4 cyan(0,1,1,1);
#if 1
vAry->push_back(ppp); nAry->push_back(ppp); cAry->push_back(white);
vAry->push_back(nnp); nAry->push_back(nnp); cAry->push_back(blue);
vAry->push_back(pnn); nAry->push_back(pnn); cAry->push_back(red);
vAry->push_back(npn); nAry->push_back(npn); cAry->push_back(green);
vAry->push_back(ppp); nAry->push_back(ppp); cAry->push_back(white);
vAry->push_back(nnp); nAry->push_back(nnp); cAry->push_back(blue);
#else
vAry->push_back(ppn); nAry->push_back(ppn); cAry->push_back(yellow);
vAry->push_back(pnp); nAry->push_back(pnp); cAry->push_back(magenta);
vAry->push_back(nnn); nAry->push_back(nnn); cAry->push_back(black);
vAry->push_back(npp); nAry->push_back(npp); cAry->push_back(cyan);
vAry->push_back(ppn); nAry->push_back(ppn); cAry->push_back(yellow);
vAry->push_back(pnp); nAry->push_back(pnp); cAry->push_back(magenta);
#endif
addPrimitiveSet( new osg::DrawArrays( GL_TRIANGLE_STRIP, 0, vAry->size() ) );
}
deprecated_osg::Geometry::AttributeBinding deprecated_osg::Geometry::getNormalBinding() const { return static_cast<AttributeBinding>(osg::getBinding(getNormalArray())); }