Fix - correctly handle negative line width in exclusion

Author: linev

changes.md

@@ -4,6 +4,7 @@
 1. Fix - support pow(x,n) function in formula
 2. Fix - use pad.fFillColor for frame when fFrameFillColor==0
 3. Fix - correctly identify horizontal TGaxis with reverse scale 
+4. Fix - correctly handle negative line width in exclusion  
 
 
 ## Changes in 5.2.3

scripts/JSRootPainter.js

@@ -459,13 +459,12 @@
       if (_width==0) line.color = 'none';
 
       if (can_excl) {
-         line.excl_side = 0;
-         line.excl_width = 0;
+         line.excl_side = line.excl_width = 0;
          if (Math.abs(line.width) > 99) {
             // exclusion graph
             line.excl_side = (line.width < 0) ? -1 : 1;
             line.excl_width = Math.floor(line.width / 100) * 5;
-            line.width = line.width % 100; // line width
+            line.width = Math.abs(line.width % 100); // line width
          }
 
          line.ChangeExcl = function(side,width) {

scripts/JSRootPainter.more.js

@@ -1716,7 +1716,7 @@
       this.marker_size = 0; // indicate if markers are drawn
 
       if (this.lineatt.excl_side!=0) {
-         excl_width = this.lineatt.excl_side * this.lineatt.excl_width;
+         excl_width = this.lineatt.excl_width;
          if (this.lineatt.width>0) this.options.Line = 1;
       }