From bcc15fbc30bd341ba6b3ed8c16332a0ebc755558 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joachim=20Sch=C3=B6berl?= <joachim.schoeberl@tuwien.ac.at>
Date: Wed, 7 Aug 2019 18:34:43 +0200
Subject: [PATCH] use PointIndex::INVALID

---
 libsrc/csg/edgeflw.cpp          | 4 ++--
 libsrc/meshing/adfront3.cpp     | 2 +-
 libsrc/meshing/delaunay.cpp     | 2 +-
 libsrc/meshing/meshtype.cpp     | 6 +++---
 libsrc/visualization/mvdraw.cpp | 2 +-
 libsrc/visualization/vsmesh.cpp | 4 ++--
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/libsrc/csg/edgeflw.cpp b/libsrc/csg/edgeflw.cpp
index ee1b6819..d2d961ac 100644
--- a/libsrc/csg/edgeflw.cpp
+++ b/libsrc/csg/edgeflw.cpp
@@ -1326,7 +1326,7 @@ namespace netgen
 
     // generate initial point
     p = edgepoints.Get(1);
-    lastpi = -1;
+    lastpi = PointIndex::INVALID;
 
     /*
     for (pi = PointIndex::BASE; 
@@ -1368,7 +1368,7 @@ namespace netgen
 	np(1) = (1-lam) * edgepoints.Get(j-1)(1) + lam * edgepoints.Get(j)(1);
 	np(2) = (1-lam) * edgepoints.Get(j-1)(2) + lam * edgepoints.Get(j)(2);
       
-	thispi = -1;
+        thispi = PointIndex::INVALID;
 	if (i == ne)
 	  {
 	    /*
diff --git a/libsrc/meshing/adfront3.cpp b/libsrc/meshing/adfront3.cpp
index 506c8660..fb738367 100644
--- a/libsrc/meshing/adfront3.cpp
+++ b/libsrc/meshing/adfront3.cpp
@@ -590,7 +590,7 @@ int AdFront3 :: GetLocals (int fstind,
     for (j = 1; j <= locfaces.Get(i).GetNP(); j++)
       {
 	PointIndex pi = locfaces.Get(i).PNum(j);
-	invpindex[pi] = -1;
+        invpindex[pi] = PointIndex::INVALID;
       }
 
   for (i = 1; i <= locfaces.Size(); i++)
diff --git a/libsrc/meshing/delaunay.cpp b/libsrc/meshing/delaunay.cpp
index c11a0946..1c675f28 100644
--- a/libsrc/meshing/delaunay.cpp
+++ b/libsrc/meshing/delaunay.cpp
@@ -418,7 +418,7 @@ namespace netgen
 	list.DeleteElement (celind);
 	  
 	for (int k = 0; k < 4; k++)
-	  tempels.Elem(celind)[k] = -1;
+        tempels.Elem(celind)[k] = PointIndex::INVALID;
         
         tettree.DeleteElement (celind);
 	freelist.Append (celind);
diff --git a/libsrc/meshing/meshtype.cpp b/libsrc/meshing/meshtype.cpp
index e6865d50..3d818647 100644
--- a/libsrc/meshing/meshtype.cpp
+++ b/libsrc/meshing/meshtype.cpp
@@ -53,8 +53,8 @@ namespace netgen
   Segment :: Segment() 
     : is_curved(false)
   {
-    pnums[0] = -1;
-    pnums[1] = -1; 
+    pnums[0] = PointIndex::INVALID;
+    pnums[1] = PointIndex::INVALID;
     edgenr = -1;
 
     singedge_left = 0.;
@@ -69,7 +69,7 @@ namespace netgen
 
     surfnr1 = -1;
     surfnr2 = -1;
-    pnums[2] = -1;
+    pnums[2] = PointIndex::INVALID;
     meshdocval = 0;
     /*
       geominfo[0].trignum=-1; 
diff --git a/libsrc/visualization/mvdraw.cpp b/libsrc/visualization/mvdraw.cpp
index 65f25975..3a71da01 100644
--- a/libsrc/visualization/mvdraw.cpp
+++ b/libsrc/visualization/mvdraw.cpp
@@ -81,7 +81,7 @@ namespace netgen
     transp = 0.3;
     locviewer = 0;
     showstltrias = 0;
-    centerpoint = 0;
+    centerpoint = PointIndex::INVALID;
     usedispllists = 1;
     strcpy (selectvisual, "cross");
 
diff --git a/libsrc/visualization/vsmesh.cpp b/libsrc/visualization/vsmesh.cpp
index bb677d33..b784812f 100644
--- a/libsrc/visualization/vsmesh.cpp
+++ b/libsrc/visualization/vsmesh.cpp
@@ -55,8 +55,8 @@ namespace netgen
     selface = -1;
     selelement = -1;
     locpi = 1;
-    selpoint = -1;
-    selpoint2 = -1;
+    selpoint = PointIndex::INVALID;
+    selpoint2 = PointIndex::INVALID;
     seledge = -1;
 
     minh = 0.0;