FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

*** empty log message ***

Browse Source
This commit is contained in:
Don BURNS
2001-12-09 03:46:50 +00:00
parent a23627467b
commit eabb4d6918
1 changed files with 77 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

88
src/osg/GeoSet.cpp
View File

@@ -2,7 +2,6 @@
#pragma warning( disable : 4786 )
#endif
#include <stdio.h>
#include <math.h>
#include <float.h>
@@ -309,7 +308,7 @@ void GeoSet::computeNumVerts() const
const bool GeoSet::computeBound() const
{
if( _coords == (Vec3 *)0 ) return false;
if( _iaformat == IA_OFF && _coords == (Vec3 *)0 ) return false;
if( _numcoords == 0 )
{
@@ -320,22 +319,89 @@ const bool GeoSet::computeBound() const
return false;
Vec3 center(0.0f,0.0f,0.0f);
_bbox.init();
int i;
for( i = 0; i < _numcoords; i++ )
if( _iaformat == IA_OFF )
{
center += _coords[i];
for( i = 0; i < _numcoords; i++ )
{
center += _coords[i];
_bbox.expandBy(_coords[i]);
}
}
else
{
float *fptr = (float*)_iarray;
int stride =
_iaformat == IA_V2F ? 2 :
_iaformat == IA_V3F ? 3 :
_iaformat == IA_C4UB_V2F ? 6 :
_iaformat == IA_C4UB_V3F ? 7 :
_iaformat == IA_C3F_V3F ? 6 :
_iaformat == IA_N3F_V3F ? 6 :
_iaformat == IA_C4F_N3F_V3F ? 10 :
_iaformat == IA_T2F_V3F ? 5 :
_iaformat == IA_T4F_V4F ? 8 :
_iaformat == IA_T2F_C4UB_V3F ? 9 :
_iaformat == IA_T2F_C3F_V3F ? 8 :
_iaformat == IA_T2F_N3F_V3F ? 8 :
_iaformat == IA_T2F_C4F_N3F_V3F ? 12 :
_iaformat == IA_T4F_C4F_N3F_V4F ? 15 : -1;
if( stride == -1 ) // INTERNAL ERROR!!
return false;
int offset =
_iaformat == IA_V2F ? 0 :
_iaformat == IA_V3F ? 0 :
_iaformat == IA_C4UB_V2F ? 4 :
_iaformat == IA_C4UB_V3F ? 4 :
_iaformat == IA_C3F_V3F ? 3 :
_iaformat == IA_N3F_V3F ? 3 :
_iaformat == IA_C4F_N3F_V3F ? 7 :
_iaformat == IA_T2F_V3F ? 2 :
_iaformat == IA_T4F_V4F ? 3 :
_iaformat == IA_T2F_C4UB_V3F ? 6 :
_iaformat == IA_T2F_C3F_V3F ? 5 :
_iaformat == IA_T2F_N3F_V3F ? 5 :
_iaformat == IA_T2F_C4F_N3F_V3F ? 9 :
_iaformat == IA_T4F_C4F_N3F_V4F ? 11 : 0;
fptr += offset;
int ncomp =
_iaformat == IA_V2F ? 2 :
_iaformat == IA_V3F ? 3 :
_iaformat == IA_C4UB_V2F ? 2 :
_iaformat == IA_C4UB_V3F ? 3 :
_iaformat == IA_C3F_V3F ? 3 :
_iaformat == IA_N3F_V3F ? 3 :
_iaformat == IA_C4F_N3F_V3F ? 3 :
_iaformat == IA_T2F_V3F ? 3 :
_iaformat == IA_T4F_V4F ? 4 :
_iaformat == IA_T2F_C4UB_V3F ? 3 :
_iaformat == IA_T2F_C3F_V3F ? 3 :
_iaformat == IA_T2F_N3F_V3F ? 3 :
_iaformat == IA_T2F_C4F_N3F_V3F ? 3 :
_iaformat == IA_T4F_C4F_N3F_V4F ? 4 : 0;
for( i = 0; i < _numcoords; i++ )
{
float x = fptr[0];
float y = fptr[1];
float z = ncomp >= 3 ? fptr[2] : 0.0f;
Vec3 vv(x,y,z);
center += vv;
_bbox.expandBy(vv);
fptr += stride;
}
}
center /= (float)_numcoords;
_bbox.init();
for( i = 0; i < _numcoords; i++ )
{
_bbox.expandBy(_coords[i]);
}
_bbox_computed=true;
return true;