Changeset 2502 for XIOS2/trunk/extern/remap/src/meshutil.cpp

Timestamp:

05/12/23 11:51:31 (14 months ago)

Author:

ymipsl

Message:

add comments
YM

File:

• XIOS2/trunk/extern/remap/src/meshutil.cpp (modified) (1 diff)

XIOS2/trunk/extern/remap/src/meshutil.cpp

@@ -61 +61 @@
   bary = exact_barycentre(dstPolygon.data(),na) ;
   
-  // check signed area
+  // check signed area of polygons on gnomonic plan => if <0 then switch barycenter and invert vertex numbering 
   double signedArea = 0 ;
   for(int n=0; n<na;n++) signedArea+= a_gno[n].x*a_gno[(n+1)%na].y-a_gno[(n+1)%na].x*a_gno[n].y ;