gml_reproject_pa()

static POINTARRAY * gml_reproject_pa ( POINTARRAY *  pa, int32_t  epsg_in, int32_t  epsg_out  )

static

Use Proj to reproject a given POINTARRAY.

Definition at line 336 of file lwgeom_in_gml.c.

{
        LWPROJ *lwp;
        char text_in[16];
        char text_out[16];
 
        if (epsg_in == SRID_UNKNOWN)
                return pa; /* nothing to do */
 
        if (epsg_out == SRID_UNKNOWN)
        {
                gml_lwpgerror("invalid GML representation", 3);
                return NULL;
        }
 
        snprintf(text_in, 16, "EPSG:%d", epsg_in);
        snprintf(text_out, 16, "EPSG:%d", epsg_out);
 
 
        lwp = lwproj_from_str(text_in, text_out);
        if (!lwp)
        {
                gml_lwpgerror("Could not create LWPROJ*", 57);
                return NULL;
        }
 
        if (ptarray_transform(pa, lwp) == LW_FAILURE)
        {
                elog(ERROR, "gml_reproject_pa: reprojection failed");
                return NULL;
        }
        proj_destroy(lwp->pj);
        pfree(lwp);
 
        return pa;
}

References gml_lwpgerror(), LW_FAILURE, lwproj_from_str(), LWPROJ::pj, ptarray_transform(), and SRID_UNKNOWN.

Referenced by parse_gml_curve(), parse_gml_data(), parse_gml_line(), parse_gml_linearring(), parse_gml_patch(), parse_gml_point(), parse_gml_polygon(), and parse_gml_triangle().

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