/// set the bounding box values
void SphereVolume::calcBB() {
bb.clear();
GLVertex maxpt = GLVertex(center.x + radius, center.y + radius, center.z + radius);
GLVertex minpt = GLVertex(center.x - radius, center.y - radius, center.z - radius);
bb.addPoint( maxpt );
bb.addPoint( minpt );
}
// FIXME??
void RectVolume::calcBB() {
bb.clear();
GLVertex maxp;
GLVertex minp;
double bignum = 1e6;
maxp = GLVertex(bignum,bignum,bignum);
minp = GLVertex( -bignum,-bignum,-bignum);
bb.addPoint( maxp );
bb.addPoint( minp );
}
GLVertex operator*(const double &a) const {
return GLVertex(*this) *= a;
}
GLVertex cross(const GLVertex &p) const {
GLfloat xc = y * p.z - z * p.y;
GLfloat yc = z * p.x - x * p.z;
GLfloat zc = x * p.y - y * p.x;
return GLVertex(xc, yc, zc);
}
const GLVertex operator-( const GLVertex &p) const {
return GLVertex(*this) -= p;
}
const GLVertex operator+( const GLVertex &p) const {
return GLVertex(*this) += p;
}
RectVolume::RectVolume() {
corner = GLVertex(0,0,0);
v1 = GLVertex(1,0,0);
v2 = GLVertex(0,1,0);
v3 = GLVertex(0,0,1);
}
/// sphere at center
SphereVolume::SphereVolume() {
center = GLVertex(0,0,0);
radius = 1.0;
calcBB();
}
/// modify given vertex
void GLData::modifyVertex( unsigned int id, float x, float y, float z, float r, float g, float b, float nx, float ny, float nz) {
GLVertex p = GLVertex(x,y,z,r,g,b,nx,ny,nz);
vertexArray[workIndex][id] = p;
}
/// add a vertex with given position and color, return its index
unsigned int GLData::addVertex(float x, float y, float z, float r, float g, float b) {
return addVertex( GLVertex(x,y,z,r,g,b), NULL );
}
// minx maxx miny maxy minz maxz
Bbox::Bbox(double b1, double b2, double b3, double b4, double b5, double b6) {
minpt = GLVertex(b1,b3,b5);
maxpt = GLVertex(b2,b4,b6);
initialized = true;
}
Bbox::Bbox() {
minpt = GLVertex(0,0,0);
maxpt = GLVertex(0,0,0);
initialized = false;
}
