test-htmesh.cpp

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#include <iostream>

#include "HTMesh.h"
#include "MeshIterator.h"


int main() {
    int level = 5;
    printf("level = %d\n", level);
    HTMesh *mesh = new HTMesh( level, level );
    mesh->setDebug(17);
  
    double ra=6.75 * 15.;
    double dec=-16.72;
  
    //Lookup the triangle containing (ra,dec)
    long id = mesh->index( ra, dec );
    const char *name = mesh->indexToName( id );
    printf("(%8.4f %8.4f): %s\n", ra, dec, name);
  
    double vr1, vd1, vr2, vd2, vr3, vd3;
    mesh->vertices( id, &vr1, &vd1, &vr2, &vd2, &vr3, &vd3);

    printf("\nThe three vertices of %s are:\n", name);
    printf("    (%6.2f, %6.2f)\n", vr1, vd1);
    printf("    (%6.2f, %6.2f)\n", vr2, vd2);
    printf("    (%6.2f, %6.2f)\n", vr3, vd3);
  
    printf("\n");
    //Loop over triangles within one degree of (ra,dec)
  
    double radius = 2.0;
    //printf("Leak test! ...\n");
    for ( int ii = 0; ii < 1; ii++) {
  
        mesh->intersect( ra, dec, ra - radius, dec, ra - radius , dec + radius );
        mesh->intersect( ra, dec, ra - radius, dec, ra - radius , dec + radius, 
                         ra , dec + radius);
     

        mesh->intersect( ra, dec, radius );
        //continue;
      
        MeshIterator iterator(mesh);
      
        printf("Number of trixels = %d\n\n", mesh->intersectSize() );
        printf("Triangles within %5.2f degrees of (%6.2f, %6.2f)\n", radius, ra, dec);
      
        while ( iterator.hasNext() ) {
            printf("%s\n",  mesh->indexToName( iterator.next() ));    
        }
    }
  
    double ra1, dec1, ra2, dec2;
    ra1  = 275.874939;
    ra2  = 274.882451;
    dec1 = -82.470360;
    dec2 = -82.482475;

    printf("Testing Line intersection: (%f, %f) -->\n", ra1, dec1);
    printf("                           (%f, %f)\n", ra2, dec2);

    mesh->intersect(ra1, dec1, ra2, dec2);
    printf("found %d trixels\n", mesh->intersectSize());

    return 0;
}