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Various generic changes.

This commit is contained in:
Federico Ponchio 2004-09-28 10:23:28 +00:00
parent b4e6ecabbe
commit 89c3695006
1 changed files with 36 additions and 24 deletions
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60
wrap/gui/frustum.h
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.4 2004/05/12 20:55:18 ponchio
*** empty log message ***
Revision 1.3 2004/03/31 15:06:41 ponchio
#include <camera> -> #include <view>
@ -43,11 +46,11 @@ Adding copyright.
namespace vcg {
template <class T> class Frustum: public View<T> {
template <class T> class Frustum: public View<T> {
public:
void GetView();
Point3<T> ViewPoint();
T Resolution();
T Resolution(float dist = 1);
bool IsOutside(Point3<T> &point);
bool IsOutside(Point3<T> &point, T radius);
T Distance(Point3<T> &point, int plane);
@ -58,6 +61,7 @@ protected:
Point3<T> view_point;
};
typedef Frustum<float> Frustumf;
typedef Frustum<double> Frustumd;
@ -67,8 +71,8 @@ template <class T> Point3<T> Frustum<T>::ViewPoint() {
return view_point;
}
template <class T> T Frustum<T>::Resolution() {
return resolution;
template <class T> T Frustum<T>::Resolution(float dist) {
return resolution * dist;
}
template <class T> bool Frustum<T>::IsOutside(Point3<T> &point) {
@ -89,42 +93,50 @@ template <class T> bool Frustum<T>::IsOutside(Point3<T> &point, T radius) {
}
template <class T> T Frustum<T>::Distance(Point3<T> &point, int plane) {
return Distance<T>(point, planes[plane]);
return Distance(point, planes[plane]);
}
template <class T> void Frustum<T>::GetView() {
Camera::GetView();
View<T>::GetView();
Point3d NE, SE, SW, NW, ne, se, sw, nw;
// Point3d NE, SE, SW, NW, ne, se, sw, nw;
int t = viewport[1] + viewport[3];
int b = viewport[1];
int r = viewport[0] + viewport[2];
int l = viewport[0];
Point3d NE, SE, SW, NW, ne, se, sw, nw;
gluUnProject(l, b, 0, model_matrix, proj_matrix, viewport, &nw[0], &nw[1], &nw[2]);
gluUnProject(l, t, 0, model_matrix, proj_matrix, viewport, &sw[0], &sw[1], &sw[2]);
gluUnProject(r, b, 0, model_matrix, proj_matrix, viewport, &ne[0], &ne[1], &ne[2]);
gluUnProject(r, t, 0, model_matrix, proj_matrix, viewport, &se[0], &se[1], &se[2]);
gluUnProject(l, b, 1, model_matrix, proj_matrix, viewport, &NW[0], &NW[1], &NW[2]);
gluUnProject(l, t, 1, model_matrix, proj_matrix, viewport, &SW[0], &SW[1], &SW[2]);
gluUnProject(r, b, 1, model_matrix, proj_matrix, viewport, &NE[0], &NE[1], &NE[2]);
gluUnProject(r, t, 1, model_matrix, proj_matrix, viewport, &SE[0], &SE[1], &SE[2]);
Point3<T> nw = UnProject(Point3<T>(l, b, 0));
Point3<T> sw = UnProject(Point3<T>(l, t, 0));
Point3<T> ne = UnProject(Point3<T>(r, b, 0));
Point3<T> se = UnProject(Point3<T>(r, t, 0));
Point3<T> NW = UnProject(Point3<T>(l, b, 1));
Point3<T> SW = UnProject(Point3<T>(l, t, 1));
Point3<T> NE = UnProject(Point3<T>(r, b, 1));
Point3<T> SE = UnProject(Point3<T>(r, t, 1));
view_point = Camera::ViewPoint();
/* gluUnProject(l,b,0,model,proj,viewport,&nw[0], &nw[1], &nw[2]);
gluUnProject(l,t,0,model,proj,viewport,&sw[0], &sw[1], &sw[2]);
gluUnProject(r,b,0,model,proj,viewport,&ne[0], &ne[1], &ne[2]);
gluUnProject(r,t,0,model,proj,viewport,&se[0], &se[1], &se[2]);
gluUnProject(l,b,1,model,proj,viewport,&NW[0], &NW[1], &NW[2]);
gluUnProject(l,t,1,model,proj,viewport,&SW[0], &SW[1], &SW[2]);
gluUnProject(r,b,1,model,proj,viewport,&NE[0], &NE[1], &NE[2]);
gluUnProject(r,t,1,model,proj,viewport,&SE[0], &SE[1], &SE[2]);*/
planes[0].init(view_point, Point3<T>().Import(nw), Point3<T>().Import(ne));
planes[1].init(view_point, Point3<T>().Import(ne), Point3<T>().Import(se));
planes[2].init(view_point, Point3<T>().Import(se), Point3<T>().Import(sw));
planes[3].init(view_point, Point3<T>().Import(sw), Point3<T>().Import(nw));
planes[4].init(Point3<T>().Import(se), Point3<T>().Import(sw), Point3<T>().Import(nw));
planes[5].init(Point3<T>().Import(SW), Point3<T>().Import(SE), Point3<T>().Import(NE));
view_point = View<T>::ViewPoint();
planes[0].Init(view_point, nw, ne);
planes[1].Init(view_point, ne, se);
planes[2].Init(view_point, se, sw);
planes[3].Init(view_point, sw, nw);
planes[4].Init(se, sw, nw);
planes[5].Init(SW, SE, NE);
for(int i = 0; i < 6; i++)
planes[i].Normalize();
//calcoliamo la risoluzione: dimenzione di un pixel a distanza 1 dal view_point
resolution = (T)((ne + NE) - (nw + NW)).Norm() /( viewport[2] * ((ne + NE) - (nw + NW)).Norm());
resolution = ((ne + NE) - (nw + NW)).Norm() /( viewport[2] * ((ne + NE) - view_point).Norm());
}
}//namespace