asx3d3_tin_buf()

static size_t asx3d3_tin_buf ( const LWTIN *  tin, char *  srs, char *  output, int  precision, int  opts, const char *  defid  )

static

Fill in triangle index

Definition at line 646 of file lwout_x3d.c.

References asx3d3_triangle_buf(), LWTIN::geoms, LW_X3D_FLIP_XY, LWTIN::ngeoms, and X3D_USE_GEOCOORDS.

Referenced by asx3d3_collection_buf(), and asx3d3_tin().

{
        char *ptr;
        int i;
        int k;
        /* int dimension=2; */

        ptr = output;

        ptr += sprintf(ptr, "<IndexedTriangleSet %s index='",defid);
        k = 0;
        for (i=0; i<tin->ngeoms; i++)
        {
                ptr += sprintf(ptr, "%d %d %d", k, (k+1), (k+2));
                if (i < (tin->ngeoms - 1) )
                {
                        ptr += sprintf(ptr, " ");
                }
                k += 3;
        }

        if ( X3D_USE_GEOCOORDS(opts) ) ptr += sprintf(ptr, "'><GeoCoordinate geoSystem='\"GD\" \"WE\" \"%s\"' point='", ( (opts & LW_X3D_FLIP_XY) ? "latitude_first" : "longitude_first") );
        else ptr += sprintf(ptr, "'><Coordinate point='");

        for (i=0; i<tin->ngeoms; i++)
        {
                ptr += asx3d3_triangle_buf(tin->geoms[i], 0, ptr, precision,
                                           opts, defid);
                if (i < (tin->ngeoms - 1) )
                {
                        ptr += sprintf(ptr, " ");
                }
        }

        /* Close outmost tag */

        ptr += sprintf(ptr, "'/></IndexedTriangleSet>");

        return (ptr-output);
}

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