+gboolean _load_marker(gpointer _test)
+{
+ GritsPluginTest *test = _test;
+ GritsMarker *marker = grits_marker_new("St. Charles");
+ grits_point_set_lle(grits_object_center(marker), 38.841847, -90.491982, 0);
+ GRITS_OBJECT(marker)->lod = EARTH_R;
+ test->marker = grits_viewer_add(test->viewer, GRITS_OBJECT(marker), GRITS_LEVEL_OVERLAY, 0);
+ return FALSE;
+}
+/**
+ * grits_plugin_test_new:
+ * @viewer: the #GritsViewer to use for drawing
+ *
+ * Create a new instance of the testing plugin.
+ *
+ * Returns: the new #GritsPluginTest
+ */
+GritsPluginTest *grits_plugin_test_new(GritsViewer *viewer)