- massive attack s/pld.org.pl/pld-linux.org/

[packages/gnuplot.git] / gnuplot-round.patch

--- gnuplot-3.7.1/graphics.c.round	Wed Sep 15 09:30:29 1999
+++ gnuplot-3.7.1/graphics.c	Wed Jun  6 15:59:07 2001
@@ -583,7 +583,8 @@
     /* compute ytop from the various components
      *     unless tmargin is explicitly specified  */
 
-    ytop = (int) ((ysize + yoffset) * (t->ymax));
+    /* HBB 20010118: fix round-off bug */
+    ytop = (int) (0.5 + (ysize + yoffset) * (t->ymax));
 
     if (tmargin < 0) {
 	int top_margin = x2label_textheight + title_textheight;
@@ -668,7 +669,7 @@
     /* compute ybot from the various components
      *     unless bmargin is explicitly specified  */
 
-    ybot = (int) ((t->ymax) * yoffset);
+    ybot = (int) (0.5 + (t->ymax) * yoffset);
 
     if (bmargin < 0) {
 	ybot += xtic_height + xtic_textheight;
@@ -844,7 +845,7 @@
     /* compute xleft from the various components
      *     unless lmargin is explicitly specified  */
 
-    xleft = (int) ((t->xmax) * xoffset);
+    xleft = (int) (0.5 + (t->xmax) * xoffset);
 
     if (lmargin < 0) {
 	xleft += (timelabel_textwidth > ylabel_textwidth ? timelabel_textwidth : ylabel_textwidth)
@@ -905,7 +906,7 @@
     /* compute xright from the various components
      *     unless rmargin is explicitly specified  */
 
-    xright = (int) ((t->xmax) * (xsize + xoffset));
+    xright = (int) (0.5 + (t->xmax) * (xsize + xoffset));
 
     if (rmargin < 0) {
 	/* xright -= y2label_textwidth + y2tic_width + y2tic_textwidth; */