GisHeightFunc height_func, gpointer user_data,
gboolean update)
{
GisViewerClass *klass = GIS_VIEWER_GET_CLASS(viewer);
if (!klass->set_height_func)
g_warning("GisViewer: set_height_func - Unimplemented");
GisHeightFunc height_func, gpointer user_data,
gboolean update)
{
GisViewerClass *klass = GIS_VIEWER_GET_CLASS(viewer);
if (!klass->set_height_func)
g_warning("GisViewer: set_height_func - Unimplemented");