void VoronoiDiagramGenerator::reset()
{
cleanup();
cleanupEdges();
if(allMemoryList != 0)
delete allMemoryList;
if(finalVertices != 0)
free(finalVertices);
if(vertexLinks != 0)
free(vertexLinks);
if(vertices != 0)
free(vertices);
if(finalVertexLinks != 0)
free(finalVertexLinks);
allMemoryList = 0;
finalVertices = 0;
vertexLinks = 0;
vertices = 0;
finalVertexLinks = 0;
}
VoronoiDiagramGenerator::~VoronoiDiagramGenerator()
{
cleanup();
cleanupEdges();
if(allMemoryList != 0)
delete allMemoryList;
}
bool VoronoiDiagramGenerator::generateVoronoi(float *xValues, float *yValues, int numPoints, float minX, float maxX, float minY, float maxY, float minDist)
{
cleanup();
cleanupEdges();
int i;
minDistanceBetweenSites = minDist;
nsites=numPoints;
plot = 0;
triangulate = 0;
debug = 1;
sorted = 0;
freeinit(&sfl, sizeof (Site));
sites = (struct Site *) myalloc(nsites*sizeof( *sites));
if(sites == 0)
return false;
xmin = xValues[0];
ymin = yValues[0];
xmax = xValues[0];
ymax = yValues[0];
for(i = 0; i< nsites; i++)
{
sites[i].coord.x = xValues[i];
sites[i].coord.y = yValues[i];
sites[i].sitenbr = i;
sites[i].refcnt = 0;
if(xValues[i] < xmin)
xmin = xValues[i];
else if(xValues[i] > xmax)
xmax = xValues[i];
if(yValues[i] < ymin)
ymin = yValues[i];
else if(yValues[i] > ymax)
ymax = yValues[i];
//printf("\n%f %f\n",xValues[i],yValues[i]);
}
qsort(sites, nsites, sizeof (*sites), scomp);
siteidx = 0;
geominit();
float temp = 0;
if(minX > maxX)
{
temp = minX;
minX = maxX;
maxX = temp;
}
if(minY > maxY)
{
temp = minY;
minY = maxY;
maxY = temp;
}
borderMinX = minX;
borderMinY = minY;
borderMaxX = maxX;
borderMaxY = maxY;
siteidx = 0;
voronoi(triangulate);
return true;
}