/* Recursively print a node hierarchy to a file stream in the .obj format */
void printNode(MODL *model, NODE *node, float parentOffset[3], FILE *ofp)
{
//add this nodes offset to it's parent (accumulating as we recurse)
float nodeOffset[3];
for(int i=0; i<3; i++) nodeOffset[i] = parentOffset[i] + node->position[i];
//the mesh if further offset by a pivot offset (and then should be rotated but not done here yet)
float meshOffset[3];
for(int i=0; i<3; i++) meshOffset[i] = nodeOffset[i] + node->pivot[i];
//draw the mesh for this node if it has one
if(node->meshID != -1)
{
printMesh(model, model->meshes[node->meshID], meshOffset, ofp);
}
//recurse and print the child nodes if it has any
if(node->hasChildren != 0)
{
//just recurses to the first child which will then itself recurse to
//any remaining siblings, see next block down
printNode(model, model->nodes[node->childID], nodeOffset, ofp);
}
//recurse and print the current node's siblings if it has any
if(node->hasSibling != 0)
{
//NOTE: siblings all share the same original parent offset
printNode(model, model->nodes[node->siblingID], parentOffset, ofp);
}
}
void
ElementFragmentAlgorithm::sanityCheck()
{
// Make sure there are no remaining TempNodes
if (_temp_nodes.size() > 0)
{
_ostream << "_temp_nodes size > 0. size=" << _temp_nodes.size() << std::endl;
printMesh();
exit(1);
}
}
void keyboardInput(unsigned char key, int x, int y) {
__UNUSED(x);
__UNUSED(y);
switch(key) {
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': {
int initEdges = mesh->numEdges;
int initPolys = mesh->numFaces;
int targetEdges = MAX(6, (1.0f - 0.1f * (int)(key - '0')) * mesh->numEdges);
while(mesh->numEdges > targetEdges) {
if(!reduce(mesh)) break;
}
printf("Mesh successfully reduced by %c0%%. From %d to %d edges, %d to %d polys.\n",
key, initEdges, mesh->numEdges, initPolys, mesh->numFaces);
break;
}
case '`':
reduce(mesh);
printf("Mesh successfully reduced by one vertex.\n");
break;
case 'v':
lines = 1 - lines;
printf("Display mode changed. ");
if(lines) printf("Drawing with GL_LINES.\n");
else printf("Drawing with GL_TRIANGLES.\n");
break;
case 'p':
printMesh(mesh, stdout);
break;
case 'q':
exit(0);
break;
case 'r':
reset();
printf("Mesh successfully reset.\n");
break;
case 'm':
changeCostFunc(mesh, melaxCost);
printf("Cost function changed to Melax.\n");
break;
case 's':
changeCostFunc(mesh, simpleCost);
printf("Cost function changed to Simple.\n");
break;
case '+':
zoom += 1;
break;
case '-':
zoom -= 1;
break;
default: break;
}
glutPostRedisplay();
}
