void R3Matrix::Scale(const R3Vector& scale)
{
// Scale matrix
XScale(scale.X());
YScale(scale.Y());
ZScale(scale.Z());
}
void R3Matrix::Scale(double scale)
{
// Scale matrix
XScale(scale);
YScale(scale);
ZScale(scale);
}
void R4Matrix::
Scale(RNScalar scale)
{
// Scale matrix
XScale(scale);
YScale(scale);
ZScale(scale);
}
GeometryRefPtr buildTerrain(Vec2f Dimensions, UInt32 XSubdivisions, UInt32 YSubdivisions)
{
GeoUInt8PropertyRefPtr type = GeoUInt8Property::create();
type->addValue(GL_TRIANGLES);
GeoPnt3fPropertyRefPtr pnts = GeoPnt3fProperty ::create();
GeoVec3fPropertyRefPtr norms = GeoVec3fProperty ::create();
Real32 ZScale(8.0);
for(UInt32 i(0) ; i<XSubdivisions ; ++i)
{
for(UInt32 j(0) ; j<YSubdivisions ; ++j)
{
Real32 Theta(5*3.14159*(static_cast<Real32>(i)/static_cast<Real32>(XSubdivisions))),
ThetaNext(5*3.14159*(static_cast<Real32>(i+1)/static_cast<Real32>(XSubdivisions)));
// the points of the Tris
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+i*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-j*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(Theta)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+i*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-(j+1)*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(Theta)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+(i+1)*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-j*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(ThetaNext)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+i*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-(j+1)*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(Theta)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+(i+1)*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-(j+1)*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(ThetaNext)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+(i+1)*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-j*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(ThetaNext)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
}
}
GeoUInt32PropertyUnrecPtr lens = GeoUInt32Property::create();
lens->addValue(pnts->size());
GeometryRefPtr Terrain = Geometry::create();
Terrain->setTypes (type);
Terrain->setLengths (lens);
Terrain->setPositions(pnts);
Terrain->setNormals(norms);
calcVertexNormals(Terrain);
return Terrain;
}
void R4Matrix::
Scale(RNAxis axis, RNScalar scale)
{
// Scale matrix along axis
switch (axis) {
case RN_XAXIS:
XScale(scale);
break;
case RN_YAXIS:
YScale(scale);
break;
case RN_ZAXIS:
ZScale(scale);
break;
default:
RNWarning("Matrix scale along undefined axis");
break;
}
}
void R3Matrix::
Scale(int axis, double scale)
{
// Scale matrix along axis
switch (axis) {
case R3_X:
XScale(scale);
break;
case R3_Y:
YScale(scale);
break;
case R3_Z:
ZScale(scale);
break;
default:
fprintf(stderr, "Matrix scale along undefined axis");
break;
}
}
