asx3d3_tin_sb()

static int asx3d3_tin_sb ( const LWTIN *  tin, __attribute__((__unused__)) char *  srs, int  precision, int  opts, const char *  defid, stringbuffer_t *  sb  )

static

Fill in triangle index

Definition at line 402 of file lwout_x3d.c.

{
        uint32_t i;
        uint32_t k;
        /* int dimension=2; */
 
        stringbuffer_aprintf(sb,"<IndexedTriangleSet %s index='",defid);
        k = 0;
        for (i=0; i<tin->ngeoms; i++)
        {
                stringbuffer_aprintf(sb, "%d %d %d", k, (k+1), (k+2));
                if (i < (tin->ngeoms - 1) )
                {
                        stringbuffer_aprintf(sb, " ");
                }
                k += 3;
        }
 
        if ( X3D_USE_GEOCOORDS(opts) ) stringbuffer_aprintf(sb, "'><GeoCoordinate geoSystem='\"GD\" \"WE\" \"%s\"' point='", ( (opts & LW_X3D_FLIP_XY) ? "latitude_first" : "longitude_first") );
        else stringbuffer_aprintf(sb, "'><Coordinate point='");
 
        for (i=0; i<tin->ngeoms; i++)
        {
                asx3d3_triangle_sb(tin->geoms[i], 0, precision,
                                           opts, defid, sb);
                if (i < (tin->ngeoms - 1) )
                {
                        stringbuffer_aprintf(sb, " ");
                }
        }
 
        /* Close outmost tag */
 
        return stringbuffer_aprintf(sb, "'/></IndexedTriangleSet>");
}

References asx3d3_triangle_sb(), LWTIN::geoms, LW_X3D_FLIP_XY, LWTIN::ngeoms, precision, stringbuffer_aprintf(), and X3D_USE_GEOCOORDS.

Referenced by asx3d3_collection_sb(), and lwgeom_to_x3d3_sb().

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