[cdftools] 92/228: JMM : fix spurious problems with integer vertices

[Alastair McKinstry]

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mckinstry pushed a commit to branch master
in repository cdftools.

commit 1d50c3e985f54e2422c908cb6d5fc5924de93693
Author: molines <molines at 1055176f-818a-41d9-83e1-73fbe5b947c5>
Date:   Tue May 24 17:10:41 2011 +0000

    JMM : fix spurious problems with integer vertices
    
    
    git-svn-id: http://servforge.legi.grenoble-inp.fr/svn/CDFTOOLS/trunk@498 1055176f-818a-41d9-83e1-73fbe5b947c5
---
 modpoly.f90 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modpoly.f90 b/modpoly.f90
index 12f1a2f..2debdbc 100644
--- a/modpoly.f90
+++ b/modpoly.f90
@@ -91,6 +91,12 @@ CONTAINS
        ! Automatically close the polygon
        vertx(ipoly,jmax+1)=vertx(ipoly,1)               
        verty(ipoly,jmax+1)=verty(ipoly,1)
+       ! take care not to have integer values on polygon vertices
+       DO jj=1, jmax+1
+         IF ( (vertx(ipoly, jj) - INT( vertx(ipoly, jj) ) ) == 0 ) vertx(ipoly, jj) = vertx(ipoly, jj)+0.001
+         IF ( (verty(ipoly, jj) - INT( verty(ipoly, jj) ) ) == 0 ) verty(ipoly, jj) = verty(ipoly, jj)+0.001
+       END DO
+
     ENDDO
 995 kpoly=ipoly-1
     CLOSE(numpol)

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