Index: /issm/trunk-jpl/src/c/modules/InterpFromMeshToGridx/InterpFromMeshToGridx.cpp
===================================================================
--- /issm/trunk-jpl/src/c/modules/InterpFromMeshToGridx/InterpFromMeshToGridx.cpp	(revision 15162)
+++ /issm/trunk-jpl/src/c/modules/InterpFromMeshToGridx/InterpFromMeshToGridx.cpp	(revision 15163)
@@ -59,6 +59,6 @@
 	/*Compute coordinates lists*/
 	ymin=ymax-(nlines-1)*yposting;
-	for(i=0;i<nlines;i++)   y_grid[i]= ymin + yposting*i;
-	for(i=0;i<ncols; i++)   x_grid[i]= xmin + xposting*i;
+	for(i=0;i<nlines;i++)   y_grid[i]= ymin + fabs(yposting)*i;
+	for(i=0;i<ncols; i++)   x_grid[i]= xmin + fabs(xposting)*i;
 
 	/*Initialize coordintes and griddata*/