Fix last equal interval break in graduated symbol renderer (#4044)

wonder-sk · wonder-sk · commit 88a2a625b55b · 2011-07-04T20:40:36.000+02:00
diff --git a/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp b/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp
@@ -306,6 +306,11 @@ static QList<double> _calcEqualIntervalBreaks( double minimum, double maximum, i
     value += step;
     breaks.append( value );
   }
+
+  // floating point arithmetics is not precise:
+  // set the last break to be exactly maximum so we do not miss it
+  breaks[classes-1] = maximum;
+
   return breaks;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -306,6 +306,11 @@ static QList<double> _calcEqualIntervalBreaks( double minimum, double maximum, i`
`306`	`306`	`value += step;`
`307`	`307`	`breaks.append( value );`
`308`	`308`	`}`
	`309`	`+`
	`310`	`+ // floating point arithmetics is not precise:`
	`311`	`+ // set the last break to be exactly maximum so we do not miss it`
	`312`	`+ breaks[classes-1] = maximum;`
	`313`	`+`
`309`	`314`	`return breaks;`
`310`	`315`	`}`
`311`	`316`