diff --git a/EGkCalcPocketing.h b/EGkCalcPocketing.h
index 8701c8e..5927da6 100644
--- a/EGkCalcPocketing.h
+++ b/EGkCalcPocketing.h
@@ -35,3 +35,11 @@ enum { POCKET_ZIGZAG = 0,
        POCKET_ONEWAY = 1,
        POCKET_SPIRALIN = 2,
        POCKET_SPIRALOUT = 3} ;
+
+enum { TEMP_PROP_INVALID = -1,
+       TEMP_PROP_CLOSE_EDGE = 0,
+       TEMP_PROP_OPEN_EDGE = 1,
+       TEMP_PROP_OUT_START = 2,
+       TEMP_PROP_SINGLE_CURVE = 3,
+       TEMP_PROP_OPT_TRAPEZOID = 4,
+       TEMP_PROP_BORDER_CURVE = 5} ;