asgml3_poly_buf()

static size_t asgml3_poly_buf ( const LWPOLY *  poly, const char *  srs, char *  output, int  precision, int  opts, int  is_patch, const char *  prefix, const char *  id  )

static

Definition at line 1034 of file lwout_gml.c.

References LWPOLY::flags, FLAGS_GET_Z, IS_DIMS, lwpoly_is_empty(), LWPOLY::nrings, pointArray_toGML3(), and LWPOLY::rings.

Referenced by asgml3_collection_buf(), asgml3_multi_buf(), asgml3_multisurface_buf(), asgml3_poly(), and asgml3_psurface_buf().

{
        int i;
        char *ptr=output;
        int dimension=2;

        if (FLAGS_GET_Z(poly->flags)) dimension = 3;
        if (is_patch)
        {
                ptr += sprintf(ptr, "<%sPolygonPatch", prefix);

        }
        else
        {
                ptr += sprintf(ptr, "<%sPolygon", prefix);
        }

        if (srs) ptr += sprintf(ptr, " srsName=\"%s\"", srs);
        if (id)  ptr += sprintf(ptr, " %sid=\"%s\"", prefix, id);

        if ( lwpoly_is_empty(poly) )
        {
                ptr += sprintf(ptr, "/>");
                return (ptr-output);
        }
        ptr += sprintf(ptr, ">");

        ptr += sprintf(ptr, "<%sexterior><%sLinearRing>", prefix, prefix);
        if (IS_DIMS(opts)) ptr += sprintf(ptr, "<%sposList srsDimension=\"%d\">", prefix, dimension);
        else         ptr += sprintf(ptr, "<%sposList>", prefix);

        ptr += pointArray_toGML3(poly->rings[0], ptr, precision, opts);
        ptr += sprintf(ptr, "</%sposList></%sLinearRing></%sexterior>",
                       prefix, prefix, prefix);
        for (i=1; i<poly->nrings; i++)
        {
                ptr += sprintf(ptr, "<%sinterior><%sLinearRing>", prefix, prefix);
                if (IS_DIMS(opts)) ptr += sprintf(ptr, "<%sposList srsDimension=\"%d\">", prefix, dimension);
                else         ptr += sprintf(ptr, "<%sposList>", prefix);
                ptr += pointArray_toGML3(poly->rings[i], ptr, precision, opts);
                ptr += sprintf(ptr, "</%sposList></%sLinearRing></%sinterior>",
                               prefix, prefix, prefix);
        }
        if (is_patch) ptr += sprintf(ptr, "</%sPolygonPatch>", prefix);
        else ptr += sprintf(ptr, "</%sPolygon>", prefix);

        return (ptr-output);
}

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