Function osConvexHullGetExtent

maporaclespatial.c:1050–1065

}

static void osConvexHullGetExtent(layerObj *layer, char *query_str, size_t size, char *geom_column_name, char *table_name)
{
    char query_str2[6000];
    int i = 0;

    snprintf( query_str2, sizeof(query_str2), "(SELECT");
    for( i = 0; i < layer->numitems; ++i )
        snprintf( query_str2 + strlen(query_str2), sizeof(query_str2)-strlen(query_str2), " %s,", layer->items[i] );

    snprintf( query_str2 + strlen(query_str2), sizeof(query_str2)-strlen(query_str2), " %s FROM %s", geom_column_name, table_name);

    osFilteritem(layer, FUNCTION_NONE, query_str2, sizeof(query_str2), 1);
    
    
    snprintf( query_str, size, "SELECT SDO_GEOM.SDO_CONVEXHULL(%s, %f) AS GEOM from %s)", geom_column_name, TOLERANCE, query_str2);
}

static double osCalculateArcRadius(pointObj *pnt)
{