asx3d3_psurface_sb()

static int asx3d3_psurface_sb ( const LWPSURFACE *  psur, int  precision, int  opts, const char *  defid, stringbuffer_t *  sb  )

static

Definition at line 361 of file lwout_x3d.c.

{
        uint32_t i;
        uint32_t j;
        uint32_t k;
        uint32_t np;
        LWPOLY *patch;
 
        /* Open outmost tag */
        stringbuffer_aprintf(sb, "<IndexedFaceSet convex='false' %s coordIndex='",defid);
 
        j = 0;
        for (i=0; i<psur->ngeoms; i++)
        {
                patch = (LWPOLY *) psur->geoms[i];
                np = patch->rings[0]->npoints - 1;
                for (k=0; k < np ; k++)
                {
                        if (k)
                        {
                                stringbuffer_aprintf(sb, " ");
                        }
                        stringbuffer_aprintf(sb,"%d", (j + k));
                }
                if (i < (psur->ngeoms - 1) )
                {
                        stringbuffer_aprintf(sb, " -1 "); /* separator for each subgeom */
                }
                j += k;
        }
 
        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<psur->ngeoms; i++)
        {
                asx3d3_poly_sb(psur->geoms[i], precision, opts, 1, defid, sb);
                if (i < (psur->ngeoms - 1) )
                {
                        stringbuffer_aprintf(sb, " "); /* only add a trailing space if its not the last polygon in the set */
                }
        }
 
        /* Close outmost tag */
        return stringbuffer_aprintf(sb, "' /></IndexedFaceSet>");
}

References asx3d3_poly_sb(), LWPSURFACE::geoms, LW_X3D_FLIP_XY, LWPSURFACE::ngeoms, POINTARRAY::npoints, precision, LWPOLY::rings, stringbuffer_aprintf(), and X3D_USE_GEOCOORDS.

Referenced by asx3d3_collection_sb(), and lwgeom_to_x3d3_sb().

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