f1402849
 dmayerich
renewed commit
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#include "rts_glRenderableDTGrid.h"
/*ITERATOR INITIALIZATION*/
void rts_glRenderableDTGrid::init_iter_ppp()
{
m_iterator = begin();
m_iter_type = PPP;
}
void rts_glRenderableDTGrid::init_iter_nnn()
{
m_iterator = last();
m_iter_type = NNN;
}
void rts_glRenderableDTGrid::init_iter_ppn()
{
m_iterator = begin(); //put the iterator at the beginning of the data set
if(m_iterator.grid->acc.size() > 1) //if there is more than one pcolumn
{
m_iterator.loc.iv = m_iterator.grid->proj2D.value[1].to_value - 1;
m_iterator.loc.z = zCoord[m_iterator.grid->proj2D.value[1].to_coord - 1];
}
else
{
m_iterator.loc.iv = value.size() - 1;
m_iterator.loc.z = zCoord.back();
}
m_iter_type = PPN;
}
void rts_glRenderableDTGrid::init_iter_npp()
{
//set the 1D iterator location
m_iterator.Iterator2D.Iterator1D.loc.iv = proj2D.proj1D.value.size()-1; //start at the last 1D p-column
m_iterator.Iterator2D.Iterator1D.loc.ic = proj2D.proj1D.xCoord.size() - 2;
m_iterator.Iterator2D.Iterator1D.loc.x = proj2D.proj1D.xCoord[m_iterator.Iterator2D.Iterator1D.loc.ic+1];
m_iterator.Iterator2D.Iterator1D.value = proj2D.proj1D.value[m_iterator.Iterator2D.Iterator1D.loc.iv];
m_iterator.Iterator2D.Iterator1D.grid = &(proj2D.proj1D);
//set the 2D iterator location
m_iterator.Iterator2D.loc.iv = proj2D.proj1D.value[m_iterator.Iterator2D.Iterator1D.loc.iv].to_value;
m_iterator.Iterator2D.loc.ic = proj2D.proj1D.value[m_iterator.Iterator2D.Iterator1D.loc.iv].to_coord;
m_iterator.Iterator2D.loc.y = proj2D.yCoord[m_iterator.Iterator2D.loc.ic];
m_iterator.Iterator2D.value = proj2D.value[m_iterator.Iterator2D.loc.iv];
m_iterator.Iterator2D.grid = &(proj2D);
//set the 3D iterator location
m_iterator.loc.iv = proj2D.value[m_iterator.Iterator2D.loc.iv].to_value;
m_iterator.loc.ic = proj2D.value[m_iterator.Iterator2D.loc.iv].to_coord;
m_iterator.loc.z = zCoord[m_iterator.loc.ic];
m_iterator.value = value[m_iterator.loc.iv];
m_iterator.grid = this;
m_iter_type = NPP;
}
void rts_glRenderableDTGrid::iter_next_npp()
{
//if we are at the end of a p-column
if(m_iterator.loc.iv == value.size() - 1 || //if we are at the end of the last p-column or
(m_iterator.Iterator2D.loc.iv != m_iterator.grid->proj2D.value.size() - 1 &&
m_iterator.loc.iv == proj2D.value[m_iterator.Iterator2D.loc.iv + 1].to_value - 1)) //we are at the end of a p-column
{
iter_next_npx(m_iterator.Iterator2D); //increment the 2D iterator
m_iterator.loc.iv = proj2D.value[m_iterator.Iterator2D.loc.iv].to_value;
m_iterator.loc.ic = proj2D.value[m_iterator.Iterator2D.loc.iv].to_coord;
m_iterator.loc.z = zCoord[m_iterator.loc.ic];
}
//if we are at the end of a connected component
else if(m_iterator.loc.z == zCoord[m_iterator.loc.ic+1])
{
m_iterator.loc.iv++;
m_iterator.loc.ic+=2;
m_iterator.loc.z = zCoord[m_iterator.loc.ic];
}
//else if we are in a p-column
else
{
m_iterator.loc.iv++;
m_iterator.loc.z++;
}
m_iterator.value = value[m_iterator.loc.iv];
}
void rts_glRenderableDTGrid::iter_next_ppn()
{
//if we are at the beginning of a p-column
if(m_iterator.loc.z == zCoord[m_iterator.loc.ic] &&
m_iterator.loc.ic == proj2D.value[m_iterator.Iterator2D.loc.iv].to_coord)
{
m_iterator.Iterator2D.increment(); //move to the next p-column
if(m_iterator.Iterator2D.loc.iv >= proj2D.value.size()) //return
return;
//now update the 3D locator
if(m_iterator.Iterator2D.loc.iv == proj2D.value.size() - 1) //if this is the last p-column
{
m_iterator.loc.iv = value.size() - 1;
m_iterator.loc.ic = zCoord.size() - 2;
m_iterator.loc.z = zCoord.back();
}
else
{
m_iterator.loc.iv = proj2D.value[m_iterator.Iterator2D.loc.iv+1].to_value - 1;
m_iterator.loc.ic = proj2D.value[m_iterator.Iterator2D.loc.iv+1].to_coord - 2;
m_iterator.loc.z = zCoord[m_iterator.loc.ic + 1];
}
}
//if we are at the beginning of a connected component
else if(m_iterator.loc.z == zCoord[m_iterator.loc.ic])
{
m_iterator.loc.iv-=1;
m_iterator.loc.ic-=2;
m_iterator.loc.z = zCoord[m_iterator.loc.ic + 1];
}
//if we're in the middle of a connected component
else
{
m_iterator.loc.iv--;
m_iterator.loc.z--;
}
m_iterator.value = value[m_iterator.loc.iv];
}
void rts_glRenderableDTGrid::iter_next_npx(rtsDTGrid2D<IndexPair>::iterator &i2d)
{
//if we are at the end of a p-column
if(i2d.loc.iv == i2d.grid->value.size() - 1 || //if this is the last p-column
(i2d.Iterator1D.loc.iv != i2d.grid->proj1D.value.size() - 1 && //we are not in the last p-column and
i2d.loc.iv == i2d.grid->proj1D.value[i2d.Iterator1D.loc.iv+1].to_value - 1))
{
//if(i2d.Iterator1D.loc.iv == 0) //if it is the first p-column
// return;
i2d.Iterator1D.decrement(); //decrement the 1D iterator
//update the 2D locator
i2d.loc.iv = i2d.grid->proj1D.value[i2d.Iterator1D.loc.iv].to_value;
i2d.loc.ic = i2d.grid->proj1D.value[i2d.Iterator1D.loc.iv].to_coord;
i2d.loc.y = i2d.grid->yCoord[i2d.loc.ic];
}
//if we are at the end of a connected component
else if(i2d.loc.y == i2d.grid->yCoord[i2d.loc.ic+1])
{
i2d.loc.iv++;
i2d.loc.ic+=2;
i2d.loc.y = i2d.grid->yCoord[i2d.loc.ic];
}
else
{
i2d.loc.iv++;
i2d.loc.y++;
}
//set value
i2d.value = i2d.grid->value[i2d.loc.iv];
}
void rts_glRenderableDTGrid::iter_next()
{
if(m_iter_type == PPP)
m_iterator.increment();
if(m_iter_type == NNN)
m_iterator.decrement();
if(m_iter_type == PPN)
iter_next_ppn();
if(m_iter_type == NPP)
iter_next_npp();
}
void rts_glRenderableDTGrid::RenderPoints(unsigned int size, float camera_x, float camera_y, float camera_z)
{
/*This function renders a single point to the screen for each voxel in the
DT-Grid.
*/
//determine which directions to iterate
if(camera_x > 0)
{
if(camera_y > 0)
{
if(camera_z > 0)
{
//cout<<"+++"<<endl;
init_iter_ppp();
}
else
{
//cout<<"++-"<<endl;
init_iter_ppn();
}
}
else
{
if(camera_z > 0)
{
//cout<<"+-+"<<endl;
init_iter_ppp();
}
else
{
//cout<<"+--"<<endl;
init_iter_ppp();
}
}
}
else
{
if(camera_y > 0)
{
if(camera_z > 0)
{
//cout<<"-++"<<endl;
init_iter_npp();
}
else
{
//cout<<"-+-"<<endl;
init_iter_nnn();
}
}
else
{
if(camera_z > 0)
{
//cout<<"--+"<<endl;
init_iter_nnn();
}
else
{
//cout<<"---"<<endl;
init_iter_nnn();
}
}
}
//init_iter_npp();
glPointSize(3);
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_POINTS); //render voxels as points
unsigned int i;
unsigned int num_values = value.size();
for(i=0; i<num_values; i++)
{
glColor4f(m_iterator.value.r, m_iterator.value.g, m_iterator.value.b, m_iterator.value.a);
glVertex3f(m_iterator.getX()/(float)MaxX(), m_iterator.getY()/(float)MaxY(), m_iterator.getZ()/(float)MaxZ());
//cout<<"("<<m_iterator.getX()<<","<<m_iterator.getY()<<","<<m_iterator.getZ()<<"):"<<m_iterator.value<<endl;
iter_next();
}
//cout<<"---------------------------------------"<<endl;
i=0;
glEnd();
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
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