From: erg <devnull@localhost>
Date: Mon, 14 Apr 2008 16:21:10 +0000 (+0000)
Subject: Fix bug in map code causing ellipses with multiple peripheries to
X-Git-Tag: LAST_LIBGRAPH~32^2~4326
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1a4460372c3675ccf158b311159f483755daab42;p=graphviz

Fix bug in map code causing ellipses with multiple peripheries to
get negative values
---

diff --git a/lib/common/emit.c b/lib/common/emit.c
index 5aed2660b..bf2bf1542 100644
--- a/lib/common/emit.c
+++ b/lib/common/emit.c
@@ -1065,14 +1065,15 @@ static void emit_begin_node(GVJ_t * job, node_t * n)
                     p = N_NEW(nump, pointf);
                     p[0].x = coord.x;
                     p[0].y = coord.y;
-		    /* ... but vertices contains LL cornet of bb */
-                    p[1].x = coord.x - vertices[peripheries - 1].x;
-                    p[1].y = coord.y - vertices[peripheries - 1].y;
+		    /* even vertices contain LL corner of bb */
+		    /* odd vertices contain UR corner of bb */
+                    p[1].x = coord.x + vertices[2*peripheries - 1].x;
+                    p[1].y = coord.y + vertices[2*peripheries - 1].y;
                 }
                 else { /* ellipse is treated as polygon */
                     obj->url_map_shape= MAP_POLYGON;
-                    p = pEllipse((double)(vertices[peripheries - 1].x),
-                                 (double)(vertices[peripheries - 1].y), nump);
+                    p = pEllipse((double)(vertices[2*peripheries - 1].x),
+                                 (double)(vertices[2*peripheries - 1].y), nump);
                     for (i = 0; i < nump; i++) {
                         p[i].x += coord.x;
                         p[i].y += coord.y;