e70152e44cc66cc599ff6b699eb8adc07f3e656a
kent
  Sat May 24 21:09:34 2014 -0700
Adding Copyright NNNN Regents of the University of California to all files I believe with reasonable certainty were developed under UCSC employ or as part of Genome Browser copyright assignment.
diff --git src/lib/psPoly.c src/lib/psPoly.c
index e9df86e..5e94e7e 100644
--- src/lib/psPoly.c
+++ src/lib/psPoly.c
@@ -1,49 +1,52 @@
 /* psPoly - two dimensional polygon. */
+
+/* Copyright (C) 2011 The Regents of the University of California 
+ * See README in this or parent directory for licensing information. */
 #include "common.h"
 #include "psPoly.h"
 
 
 struct psPoly *psPolyNew()
 /* Create new (empty) polygon */
 {
 struct psPoly *poly;
 AllocVar(poly);
 return poly;
 }
 
 void psPolyFree(struct psPoly **pPoly)
 /* Free up resources associated with polygon */
 {
 struct psPoly *poly = *pPoly;
 if (poly != NULL)
     {
     if (poly->lastPoint != NULL)
 	{
 	poly->lastPoint->next = NULL;
 	slFreeList(&poly->ptList);
 	}
     freez(pPoly);
     }
 }
 
 void psPolyAddPoint(struct psPoly *poly, double x, double y)
 /* Add point to polygon. */
 {
 struct psPoint *pt;
 poly->ptCount += 1;
 AllocVar(pt);
 pt->x = x;
 pt->y = y;
 if (poly->ptList == NULL)
     {
     poly->ptList = poly->lastPoint = pt;
     pt->next = pt;
     }
 else
     {
     poly->lastPoint->next = pt;
     pt->next = poly->ptList;
     poly->lastPoint = pt;
     }
 }