From: Robert Kaiser <kairo@kairo.at>
Date: Thu, 6 Aug 2009 10:46:12 +0000 (+0200)
Subject: correct clamping values in a way that the overview 'bookmark' works with correct... 
X-Git-Url: https://git-public.kairo.at/?a=commitdiff_plain;h=305865993932a42afc891deb5acc046b62949c9e;p=mandelbrot.git

correct clamping values in a way that the overview 'bookmark' works with correct proportional values for all common image proportions (esp. up to 16:9)
---

diff --git a/xulapp/chrome/mandelbrot/content/mandelbrot.js b/xulapp/chrome/mandelbrot/content/mandelbrot.js
index c0a8c1c..788e198 100644
--- a/xulapp/chrome/mandelbrot/content/mandelbrot.js
+++ b/xulapp/chrome/mandelbrot/content/mandelbrot.js
@@ -83,7 +83,7 @@ function adjustCoordsAndDraw(aC_min, aC_max) {
   if (aC_max.i > 2)
     aC_max.i = 2;
   if ((aC_min.i > 2) || (aC_max.i < -2) || (aC_min.i >= aC_max.i)) {
-    aC_min.i = -1.5; aC_max.i = 1.5;
+    aC_min.i = -1.3; aC_max.i = 1.3;
   }
 
   let CWidth = aC_max.r - aC_min.r;
@@ -115,8 +115,8 @@ function drawImage() {
     Cr_max = parseFloat(gPref.getCharPref("mandelbrot.last_image.Cr_max"));
   }
   catch (e) { }
-  if ((Cr_min < -2) || (Cr_min > 2) ||
-      (Cr_max < -2) || (Cr_max > 2) || (Cr_min >= Cr_max)) {
+  if ((Cr_min < -3) || (Cr_min > 2) ||
+      (Cr_max < -3) || (Cr_max > 2) || (Cr_min >= Cr_max)) {
     Cr_min = -2.0; Cr_max = 1.0;
   }
   gPref.setCharPref("mandelbrot.last_image.Cr_min", Cr_min);
@@ -129,8 +129,8 @@ function drawImage() {
     Ci_max = parseFloat(gPref.getCharPref("mandelbrot.last_image.Ci_max"));
   }
   catch (e) { }
-  if ((Ci_min < -2) || (Ci_min > 2) ||
-      (Ci_max < -2) || (Ci_max > 2) || (Ci_min >= Ci_max)) {
+  if ((Ci_min < -2.5) || (Ci_min > 2.5) ||
+      (Ci_max < -2.5) || (Ci_max > 2.5) || (Ci_min >= Ci_max)) {
     Ci_min = -1.5; Ci_max = 1.5;
   }
   gPref.setCharPref("mandelbrot.last_image.Ci_min", Ci_min);