- Fixed issue #10846: Division by zero in polygon size reducement algorithm

  for edges with an angle equals 0 degree.

2 files changed, 25 insertions, 0 deletions

diff --git a/tests/data/compare/ezcGraphSvgDriverTest_testDrawPolygonBorderReducementWithRedundantPoints.svg b/tests/data/compare/ezcGraphSvgDriverTest_testDrawPolygonBorderReducementWithRedundantPoints.svg
new file mode 100644
index 0000000..44b39bf
--- /dev/null
+++ b/tests/data/compare/ezcGraphSvgDriverTest_testDrawPolygonBorderReducementWithRedundantPoints.svg
@@ -0,0 +1,2 @@
+<?xml version="1.0"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="200" height="100" version="1.0" id="ezcGraph"><defs/><g id="ezcGraphChart" color-rendering="optimizeQuality" shape-rendering="geometricPrecision" text-rendering="optimizeLegibility"><path d=" M 10.0000,55.0000 L 10.0000,10.0000 L 10.0000,55.0000 z " style="fill: none; stroke: #3465a4; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphPolygon_1"/></g></svg>
diff --git a/tests/driver_svg_test.php b/tests/driver_svg_test.php
index 03e7734..67e0096 100644
--- a/tests/driver_svg_test.php
+++ b/tests/driver_svg_test.php
@@ -327,6 +327,29 @@ class ezcGraphSvgDriverTest extends ezcGraphTestCase
         );
     }
 
+    public function testDrawPolygonBorderReducementWithRedundantPoints()
+    {
+        $filename = $this->tempDir . __FUNCTION__ . '.svg';
+
+        $this->driver->drawPolygon(
+            array( 
+                new ezcGraphCoordinate( 10, 10 ),
+                new ezcGraphCoordinate( 10, 15 ),
+                new ezcGraphCoordinate( 10, 50 ),
+                new ezcGraphCoordinate( 10, 55 ),
+            ),
+            ezcGraphColor::fromHex( '#3465A4' ),
+            false
+        );
+
+        $this->driver->render( $filename );
+
+        $this->compare( 
+            $filename,
+            $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
+        );
+    }
+
     public function testDrawCircleSectorAcuteNonFilled()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';