- More documentation fixes

36 files changed, 239 insertions, 79 deletions

diff --git a/src/axis/date.php b/src/axis/date.php
index 42a3bca..96e8b58 100644
--- a/src/axis/date.php
+++ b/src/axis/date.php
@@ -174,7 +174,7 @@ class ezcGraphChartElementDateAxis extends ezcGraphChartElementAxis
     /**
      * Add data for this axis
      * 
-     * @param mixed $value Value which will be displayed on this axis
+     * @param array $values Value which will be displayed on this axis
      * @return void
      */
     public function addData( array $values )
@@ -429,7 +429,6 @@ class ezcGraphChartElementDateAxis extends ezcGraphChartElementAxis
     /**
      * Get coordinate for a dedicated value on the chart
      * 
-     * @param ezcGraphBounding $boundings 
      * @param float $value Value to determine position for
      * @return float Position on chart
      */
@@ -499,7 +498,8 @@ class ezcGraphChartElementDateAxis extends ezcGraphChartElementAxis
     /**
      * Get label for timestamp
      * 
-     * @param int $time 
+     * @param int $time
+     * @param int $step
      * @return string
      */
     protected function getLabelFromTimestamp( $time, $step )
diff --git a/src/axis/labeled.php b/src/axis/labeled.php
index d48b3f3..974f29f 100644
--- a/src/axis/labeled.php
+++ b/src/axis/labeled.php
@@ -127,7 +127,7 @@ class ezcGraphChartElementLabeledAxis extends ezcGraphChartElementAxis
     /**
      * Add data for this axis
      * 
-     * @param mixed $value Value which will be displayed on this axis
+     * @param array $values Value which will be displayed on this axis
      * @return void
      */
     public function addData( array $values )
@@ -332,7 +332,6 @@ class ezcGraphChartElementLabeledAxis extends ezcGraphChartElementAxis
     /**
      * Get coordinate for a dedicated value on the chart
      * 
-     * @param ezcGraphBounding $boundings 
      * @param string $value Value to determine position for
      * @return float Position on chart
      */
diff --git a/src/axis/logarithmic.php b/src/axis/logarithmic.php
index 9079200..2b1b226 100644
--- a/src/axis/logarithmic.php
+++ b/src/axis/logarithmic.php
@@ -108,7 +108,7 @@ class ezcGraphChartElementLogarithmicalAxis extends ezcGraphChartElementAxis
     /**
      * Add data for this axis
      * 
-     * @param mixed $value Value which will be displayed on this axis
+     * @param array $values Value which will be displayed on this axis
      * @return void
      */
     public function addData( array $values )
@@ -195,7 +195,6 @@ class ezcGraphChartElementLogarithmicalAxis extends ezcGraphChartElementAxis
     /**
      * Get coordinate for a dedicated value on the chart
      * 
-     * @param ezcGraphBounding $boundings 
      * @param float $value Value to determine position for
      * @return float Position on chart
      */
diff --git a/src/axis/numeric.php b/src/axis/numeric.php
index fcdc7c4..7134913 100644
--- a/src/axis/numeric.php
+++ b/src/axis/numeric.php
@@ -197,7 +197,7 @@ class ezcGraphChartElementNumericAxis extends ezcGraphChartElementAxis
     /**
      * Add data for this axis
      * 
-     * @param mixed $value Value which will be displayed on this axis
+     * @param array $values Value which will be displayed on this axis
      * @return void
      */
     public function addData( array $values )
@@ -285,7 +285,6 @@ class ezcGraphChartElementNumericAxis extends ezcGraphChartElementAxis
     /**
      * Get coordinate for a dedicated value on the chart
      * 
-     * @param ezcGraphBounding $boundings 
      * @param float $value Value to determine position for
      * @return float Position on chart
      */
diff --git a/src/charts/line.php b/src/charts/line.php
index d04611d..ce353d6 100644
--- a/src/charts/line.php
+++ b/src/charts/line.php
@@ -323,6 +323,13 @@ class ezcGraphLineChart extends ezcGraphChart
         return ezcGraph::LINE;
     }
 
+    /**
+     * Renders the basic elements of this chart type
+     * 
+     * @param int $width 
+     * @param int $height 
+     * @return void
+     */
     protected function renderElements( $width, $height )
     {
         if ( !count( $this->data ) )
@@ -430,13 +437,15 @@ class ezcGraphLineChart extends ezcGraphChart
      * Does the same as ezcGraphChart::render(), but renders directly to 
      * output and not into a file.
      *
+     * @param int $width
+     * @param int $height
      * @return void
      */
-    public function renderToOutput( $widht, $height )
+    public function renderToOutput( $width, $height )
     {
         // @TODO: merge this function with render an deprecate ommit of third 
         // argument in render() when API break is possible
-        $this->renderElements( $widht, $height );
+        $this->renderElements( $width, $height );
         $this->renderer->render( null );
     }
 }
diff --git a/src/charts/pie.php b/src/charts/pie.php
index e346569..0ed57dc 100644
--- a/src/charts/pie.php
+++ b/src/charts/pie.php
@@ -198,6 +198,13 @@ class ezcGraphPieChart extends ezcGraphChart
         }
     }
 
+    /**
+     * Renders the basic elements of this chart type
+     * 
+     * @param int $width 
+     * @param int $height 
+     * @return void
+     */
     protected function renderElements( $width, $height )
     {
         if ( !count( $this->data ) )
@@ -270,13 +277,15 @@ class ezcGraphPieChart extends ezcGraphChart
      * Does the same as ezcGraphChart::render(), but renders directly to 
      * output and not into a file.
      *
+     * @param int $width
+     * @param int $height
      * @return void
      */
-    public function renderToOutput( $widht, $height )
+    public function renderToOutput( $width, $height )
     {
         // @TODO: merge this function with render an deprecate ommit of third 
         // argument in render() when API break is possible
-        $this->renderElements( $widht, $height );
+        $this->renderElements( $width, $height );
         $this->renderer->render( null );
     }
 }
diff --git a/src/charts/radar.php b/src/charts/radar.php
index 9460a0f..0ae2c6b 100644
--- a/src/charts/radar.php
+++ b/src/charts/radar.php
@@ -167,7 +167,9 @@ class ezcGraphRadarChart extends ezcGraphChart
      * Sets the axis label position depending on the axis rotation.
      * 
      * @param ezcGraphChartElementAxis $axis 
-     * @param float $postion 
+     * @param ezcGraphBoundings $boundings 
+     * @param ezcGraphCoordinate $center 
+     * @param float $position 
      * @param float $lastPosition 
      * @return void
      */
@@ -334,6 +336,13 @@ class ezcGraphRadarChart extends ezcGraphChart
         return ezcGraph::LINE;
     }
 
+    /**
+     * Renders the basic elements of this chart type
+     * 
+     * @param int $width 
+     * @param int $height 
+     * @return void
+     */
     protected function renderElements( $width, $height )
     {
         if ( !count( $this->data ) )
@@ -422,13 +431,15 @@ class ezcGraphRadarChart extends ezcGraphChart
      * Does the same as ezcGraphChart::render(), but renders directly to 
      * output and not into a file.
      *
+     * @param int $width
+     * @param int $height
      * @return void
      */
-    public function renderToOutput( $widht, $height )
+    public function renderToOutput( $width, $height )
     {
         // @TODO: merge this function with render an deprecate ommit of third 
         // argument in render() when API break is possible
-        $this->renderElements( $widht, $height );
+        $this->renderElements( $width, $height );
         $this->renderer->render( null );
     }
 }
diff --git a/src/data_container/base.php b/src/data_container/base.php
index 41b666b..8c4f0c9 100644
--- a/src/data_container/base.php
+++ b/src/data_container/base.php
@@ -31,6 +31,13 @@ class ezcGraphChartDataContainer implements ArrayAccess, Iterator, Countable
      */
     protected $chart;
 
+    /**
+     * Constructor
+     * 
+     * @param ezcGraphChart $chart 
+     * @ignore
+     * @return void
+     */
     public function __construct( ezcGraphChart $chart )
     {
         $this->chart = $chart;
@@ -40,6 +47,7 @@ class ezcGraphChartDataContainer implements ArrayAccess, Iterator, Countable
      * Adds a dataset to the charts data
      * 
      * @param string $name Name of dataset
+     * @param ezcGraphDataSet $dataSet
      * @param mixed $values Values to create dataset with
      * @throws ezcGraphTooManyDataSetExceptions
      *          If too many datasets are created
@@ -96,8 +104,8 @@ class ezcGraphChartDataContainer implements ArrayAccess, Iterator, Countable
      * This method is part of the ArrayAccess interface to allow access to the
      * data of this object as if it was an array. 
      * 
-     * @param string $key Identifier of dataset
-     * @param ezcGraphDataSet$value The dataset to assign.
+     * @param string $key
+     * @param ezcGraphDataSet $value
      * @return void
      *
      * @throws ezcBaseValueException
@@ -119,7 +127,7 @@ class ezcGraphChartDataContainer implements ArrayAccess, Iterator, Countable
      * This method is part of the ArrayAccess interface to allow access to the
      * data of this object as if it was an array. 
      * 
-     * @param int $offset The offset to unset the value for.
+     * @param string $key
      * @return void
      */
     public function offsetUnset( $key )
diff --git a/src/data_container/single.php b/src/data_container/single.php
index 6c16bb0..45ed951 100644
--- a/src/data_container/single.php
+++ b/src/data_container/single.php
@@ -20,8 +20,8 @@ class ezcGraphChartSingleDataContainer extends ezcGraphChartDataContainer
     /**
      * Adds a dataset to the charts data
      * 
-     * @param string $name Name of dataset
-     * @param mixed $values Values to create dataset with
+     * @param string $name
+     * @param ezcGraphDataSet $dataSet
      * @throws ezcGraphTooManyDataSetExceptions
      *          If too many datasets are created
      * @return ezcGraphDataSet
diff --git a/src/datasets/array.php b/src/datasets/array.php
index 25e01c4..deb13ec 100644
--- a/src/datasets/array.php
+++ b/src/datasets/array.php
@@ -19,7 +19,7 @@ class ezcGraphArrayDataSet extends ezcGraphDataSet
     /**
      * Constructor
      * 
-     * @param array|Iterator $options Array or Iterator containing the data
+     * @param array|Iterator $data Array or Iterator containing the data
      * @return void
      */
     public function __construct( $data )
diff --git a/src/datasets/average.php b/src/datasets/average.php
index e2f701e..0eb70a5 100644
--- a/src/datasets/average.php
+++ b/src/datasets/average.php
@@ -68,7 +68,7 @@ class ezcGraphDataSetAveragePolynom extends ezcGraphDataSet
     /**
      * Constructor
      * 
-     * @param array $dataset Dataset to interpolate
+     * @param ezcGraphDataSet $dataset Dataset to interpolate
      * @param int $order Maximum order of interpolating polynom
      * @return void
      * @ignore
diff --git a/src/datasets/base.php b/src/datasets/base.php
index e51e97e..3a3ac80 100644
--- a/src/datasets/base.php
+++ b/src/datasets/base.php
@@ -63,7 +63,6 @@ abstract class ezcGraphDataSet implements ArrayAccess, Iterator, Countable
     /**
      * Constructor
      * 
-     * @param array $options Default option array
      * @return void
      * @ignore
      */
diff --git a/src/driver/flash.php b/src/driver/flash.php
index d8b10ec..b84ad9f 100644
--- a/src/driver/flash.php
+++ b/src/driver/flash.php
@@ -187,7 +187,7 @@ class ezcGraphFlashDriver extends ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1 )
+    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1. )
     {
         $movie = $this->getDocument();
 
@@ -232,7 +232,7 @@ class ezcGraphFlashDriver extends ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1 )
+    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1. )
     {
         $movie = $this->getDocument();
 
@@ -343,14 +343,15 @@ class ezcGraphFlashDriver extends ezcGraphDriver
     /**
      * Render text depending of font type and available font extensions
      * 
-     * @param resource $image Image resource
-     * @param string $text Text
-     * @param int $type Font type
-     * @param string $path Font path
-     * @param ezcGraphColor $color Font color
-     * @param ezcGraphCoordinate $position Position
-     * @param float $size Textsize
-     * @param ezcGraphRotation $rotation
+     * @param string $id 
+     * @param string $text 
+     * @param string $chars 
+     * @param int $type 
+     * @param string $path 
+     * @param ezcGraphColor $color 
+     * @param ezcGraphCoordinate $position 
+     * @param float $size 
+     * @param float $rotation 
      * @return void
      */
     protected function renderText( $id, $text, $chars, $type, $path, ezcGraphColor $color, ezcGraphCoordinate $position, $size, $rotation = null )
@@ -688,7 +689,7 @@ class ezcGraphFlashDriver extends ezcGraphDriver
      * @param mixed $startAngle 
      * @param mixed $endAngle 
      * @param ezcGraphColor $color 
-     * @param mixed $filled 
+     * @param bool $filled 
      * @return string Element id
      */
     protected function simulateCircularArc( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled )
@@ -765,6 +766,7 @@ class ezcGraphFlashDriver extends ezcGraphDriver
      * @param float $startAngle Starting angle of circle sector
      * @param float $endAngle Ending angle of circle sector
      * @param ezcGraphColor $color Color of Border
+     * @param bool $filled
      * @return void
      */
     public function drawCircularArc( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled = true )
diff --git a/src/driver/gd.php b/src/driver/gd.php
index 7fb1677..a36b691 100644
--- a/src/driver/gd.php
+++ b/src/driver/gd.php
@@ -195,7 +195,7 @@ class ezcGraphGdDriver extends ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1 )
+    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1. )
     {
         $image = $this->getImage();
 
@@ -232,7 +232,7 @@ class ezcGraphGdDriver extends ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1 )
+    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1. )
     {
         $image = $this->getImage();
 
@@ -817,6 +817,7 @@ class ezcGraphGdDriver extends ezcGraphDriver
      * @param float $startAngle Starting angle of circle sector
      * @param float $endAngle Ending angle of circle sector
      * @param ezcGraphColor $color Color of Border
+     * @param bool $filled
      * @return void
      */
     public function drawCircularArc( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled = true )
diff --git a/src/driver/svg.php b/src/driver/svg.php
index 573097c..0160674 100644
--- a/src/driver/svg.php
+++ b/src/driver/svg.php
@@ -277,7 +277,7 @@ class ezcGraphSvgDriver extends ezcGraphDriver
      * @param float $thickness Line thickness.
      * @return string Formatstring
      */
-    protected function getStyle( ezcGraphColor $color, $filled = true, $thickness = 1 )
+    protected function getStyle( ezcGraphColor $color, $filled = true, $thickness = 1. )
     {
         if ( $filled )
         {
@@ -325,7 +325,7 @@ class ezcGraphSvgDriver extends ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1 )
+    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1. )
     {
         $this->createDocument();
 
@@ -379,7 +379,7 @@ class ezcGraphSvgDriver extends ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1 )
+    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1. )
     {
         $this->createDocument();  
         
@@ -905,6 +905,7 @@ class ezcGraphSvgDriver extends ezcGraphDriver
      * @param float $startAngle Starting angle of circle sector
      * @param float $endAngle Ending angle of circle sector
      * @param ezcGraphColor $color Color of Border
+     * @param bool $filled
      * @return void
      */
     public function drawCircularArc( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled = true )
diff --git a/src/driver/verbose.php b/src/driver/verbose.php
index 64c8138..7739533 100644
--- a/src/driver/verbose.php
+++ b/src/driver/verbose.php
@@ -18,8 +18,20 @@
 
 class ezcGraphVerboseDriver extends ezcGraphDriver
 {
+    /**
+     * Number of call on driver
+     * 
+     * @var int
+     */
     protected $call = 0;
 
+    /**
+     * Constructor
+     * 
+     * @param array $options 
+     * @return void
+     * @ignore
+     */
     public function __construct( array $options = array() )
     {
         $this->options = new ezcGraphSvgDriverOptions( $options );
@@ -29,12 +41,13 @@ class ezcGraphVerboseDriver extends ezcGraphDriver
     /**
      * Draws a single polygon 
      * 
-     * @param mixed $points 
+     * @param array $points 
      * @param ezcGraphColor $color 
-     * @param mixed $filled 
+     * @param bool $filled 
+     * @param float $thickness
      * @return void
      */
-    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1 )
+    public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1. )
     {
         $pointString = '';
         foreach ( $points as $point )
@@ -55,9 +68,10 @@ class ezcGraphVerboseDriver extends ezcGraphDriver
      * @param ezcGraphCoordinate $start 
      * @param ezcGraphCoordinate $end 
      * @param ezcGraphColor $color 
+     * @param float $thickness
      * @return void
      */
-    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1 )
+    public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1. )
     {
         printf( "% 4d: Draw line from ( %.2f, %.2f ) to ( %.2f, %.2f ) with thickness %d.\n",
             $this->call++,
@@ -89,7 +103,7 @@ class ezcGraphVerboseDriver extends ezcGraphDriver
      * @param ezcGraphCoordinate $position 
      * @param mixed $width 
      * @param mixed $height 
-     * @param ezcGraphColor $color 
+     * @param int $align 
      * @param ezcGraphRotation $rotation
      * @return void
      */
@@ -114,6 +128,7 @@ class ezcGraphVerboseDriver extends ezcGraphDriver
      * @param mixed $startAngle 
      * @param mixed $endAngle 
      * @param ezcGraphColor $color 
+     * @param bool $filled
      * @return void
      */
     public function drawCircleSector( ezcGraphCoordinate $center, $width, $height, $startAngle, $endAngle, ezcGraphColor $color, $filled = true )
@@ -140,6 +155,7 @@ class ezcGraphVerboseDriver extends ezcGraphDriver
      * @param float $startAngle Starting angle of circle sector
      * @param float $endAngle Ending angle of circle sector
      * @param ezcGraphColor $color Color of Border
+     * @param bool $filled
      * @return void
      */
     public function drawCircularArc( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled = true )
diff --git a/src/element/axis.php b/src/element/axis.php
index f5eba04..30af47a 100644
--- a/src/element/axis.php
+++ b/src/element/axis.php
@@ -328,7 +328,7 @@ abstract class ezcGraphChartElementAxis extends ezcGraphChartElement
     /**
      * Add data for this axis
      * 
-     * @param mixed $value Value which will be displayed on this axis
+     * @param array $values
      * @return void
      */
     abstract public function addData( array $values );
diff --git a/src/element/background.php b/src/element/background.php
index 0aef4ba..77c5264 100644
--- a/src/element/background.php
+++ b/src/element/background.php
@@ -126,6 +126,15 @@ class ezcGraphChartElementBackground extends ezcGraphChartElement
         }
     }
 
+    /**
+     * __get 
+     * 
+     * @param mixed $propertyName 
+     * @throws ezcBasePropertyNotFoundException
+     *          If a the value for the property options is not an instance of
+     * @return mixed
+     * @ignore
+     */
     public function __get( $propertyName )
     {
         switch ( $propertyName )
diff --git a/src/element/legend.php b/src/element/legend.php
index cab5ec9..4558feb 100644
--- a/src/element/legend.php
+++ b/src/element/legend.php
@@ -144,6 +144,15 @@ class ezcGraphChartElementLegend extends ezcGraphChartElement
         }
     }
     
+    /**
+     * __get 
+     * 
+     * @param mixed $propertyName 
+     * @throws ezcBasePropertyNotFoundException
+     *          If a the value for the property options is not an instance of
+     * @return mixed
+     * @ignore
+     */
     public function __get( $propertyName )
     {
         switch ( $propertyName )
@@ -158,7 +167,7 @@ class ezcGraphChartElementLegend extends ezcGraphChartElement
     /**
      * Generate legend from several datasets with on entry per dataset
      * 
-     * @param array $datasets 
+     * @param ezcGraphChartDataContainer $datasets 
      * @return void
      */
     public function generateFromDataSets( ezcGraphChartDataContainer $datasets )
diff --git a/src/interfaces/axis_label_renderer.php b/src/interfaces/axis_label_renderer.php
index e58d913..3e2503e 100644
--- a/src/interfaces/axis_label_renderer.php
+++ b/src/interfaces/axis_label_renderer.php
@@ -175,6 +175,27 @@ abstract class ezcGraphAxisLabelRenderer extends ezcBaseOptions
         }
     }
 
+    /**
+     * Checks for the cutting point of two lines.
+     *
+     * The lines are given by a start position and the direction of the line, 
+     * both as instances of ezcGraphCoordinate. If no cutting point could be 
+     * calculated, because the lines are parallel the function will return 
+     * false. Otherwise the factor returned can be used to calculate the 
+     * cutting point using the following equatation:
+     *  point = $aStart + $factor * $aDir;
+     *
+     * We return the factor instead of the resulting point because it can be 
+     * easily determined from the factor if the cutting point is in "behind"
+     * the line starting point, or if the distance to the cutting point is
+     * bigger then the direction vector is long ( $factor > 1 ).
+     * 
+     * @param ezcGraphCoordinate $aStart 
+     * @param ezcGraphCoordinate $aDir 
+     * @param ezcGraphCoordinate $bStart 
+     * @param ezcGraphCoordinate $bDir 
+     * @return mixed
+     */
     public function determineLineCuttingPoint( ezcGraphCoordinate $aStart, ezcGraphCoordinate $aDir, ezcGraphCoordinate $bStart, ezcGraphCoordinate $bDir )
     {
         // Check if lines are parallel
diff --git a/src/interfaces/dataset_property.php b/src/interfaces/dataset_property.php
index 7fd7d52..fe6a3d7 100644
--- a/src/interfaces/dataset_property.php
+++ b/src/interfaces/dataset_property.php
@@ -40,13 +40,18 @@ abstract class ezcGraphDataSetProperty implements ArrayAccess
     /**
      * Abstract method to contain the check for validity of the value
      * 
-     * @param & $value 
-     * @abstract
-     * @access protected
+     * @param mixed $value 
      * @return void
      */
     abstract protected function checkValue( &$value );
 
+    /**
+     * Constructor
+     * 
+     * @param ezcGraphDataSet $dataset 
+     * @ignore
+     * @return void
+     */
     public function __construct( ezcGraphDataSet $dataset )
     {
         $this->dataset = $dataset;
diff --git a/src/interfaces/driver.php b/src/interfaces/driver.php
index 84ea403..9e4819a 100644
--- a/src/interfaces/driver.php
+++ b/src/interfaces/driver.php
@@ -94,7 +94,7 @@ abstract class ezcGraphDriver
      * is a valid simplification, because we do not have any polygones which 
      * have an inner angle >= 180 degrees.
      * 
-     * @param array( ezcGraphCoordinate ) $points 
+     * @param array(ezcGraphCoordinate) $points 
      * @param float $size 
      * @throws ezcGraphReducementFailedException
      * @return array( ezcGraphCoordinate )
@@ -246,9 +246,11 @@ abstract class ezcGraphDriver
      * )
      * 
      * @param ezcGraphCoordinate $center 
-     * @param mixed $startAngle 
-     * @param mixed $endAngle 
-     * @param mixed $size 
+     * @param float $width
+     * @param float $height
+     * @param float $startAngle 
+     * @param float $endAngle 
+     * @param float $size 
      * @throws ezcGraphReducementFailedException
      * @return array
      */
@@ -418,7 +420,7 @@ abstract class ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    abstract public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1 );
+    abstract public function drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1. );
     
     /**
      * Draws a line 
@@ -429,7 +431,7 @@ abstract class ezcGraphDriver
      * @param float $thickness Line thickness
      * @return void
      */
-    abstract public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1 );
+    abstract public function drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1. );
     
     /**
      * Returns boundings of text depending on the available font extension
@@ -656,6 +658,7 @@ abstract class ezcGraphDriver
      * @param float $startAngle Starting angle of circle sector
      * @param float $endAngle Ending angle of circle sector
      * @param ezcGraphColor $color Color of Border
+     * @param bool $filled Fill state
      * @return void
      */
     abstract public function drawCircularArc( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled = true );
diff --git a/src/interfaces/element.php b/src/interfaces/element.php
index b2523d5..316efbc 100644
--- a/src/interfaces/element.php
+++ b/src/interfaces/element.php
@@ -243,11 +243,21 @@ abstract class ezcGraphChartElement extends ezcBaseOptions
      * This method receives and returns a part of the canvas where it can be 
      * rendered on.
      * 
-     * @param ezcGraphBoundings $boundings Part of canvase to render element on
+     * @param ezcGraphRenderer $renderer
+     * @param ezcGraphBoundings $boundings
      * @return ezcGraphBoundings Part of canvas, which is still free to draw on
      */
     abstract public function render( ezcGraphRenderer $renderer, ezcGraphBoundings $boundings );
 
+    /**
+     * Returns calculated boundings based on available percentual space of 
+     * given bounding box specified in the elements options and direction of 
+     * the box.
+     * 
+     * @param ezcGraphBoundings $boundings 
+     * @param int $direction 
+     * @return ezcGraphBoundings
+     */
     protected function getTitleSize( ezcGraphBoundings $boundings, $direction = ezcGraph::HORIZONTAL )
     {
         if ( $direction === ezcGraph::HORIZONTAL )
diff --git a/src/interfaces/radar_renderer.php b/src/interfaces/radar_renderer.php
index f959ef0..4f251c4 100644
--- a/src/interfaces/radar_renderer.php
+++ b/src/interfaces/radar_renderer.php
@@ -48,7 +48,7 @@ interface ezcGraphRadarRenderer
         $symbol = ezcGraph::NO_SYMBOL,
         ezcGraphColor $symbolColor = null,
         ezcGraphColor $fillColor = null,
-        $thickness = 1
+        $thickness = 1.
     );
 }
 
diff --git a/src/interfaces/renderer.php b/src/interfaces/renderer.php
index 5cdc60f..2a05b8f 100644
--- a/src/interfaces/renderer.php
+++ b/src/interfaces/renderer.php
@@ -114,7 +114,7 @@ abstract class ezcGraphRenderer
      * @param float $startAngle Start angle
      * @param float $endAngle End angle
      * @param string $label Label of pie segment
-     * @param float $moveOut Move out from middle for hilighting
+     * @param bool $moveOut Move out from middle for hilighting
      * @return void
      */
     abstract public function drawPieSegment(
@@ -186,7 +186,7 @@ abstract class ezcGraphRenderer
         ezcGraphColor $symbolColor = null,
         ezcGraphColor $fillColor = null,
         $axisPosition = 0.,
-        $thickness = 1
+        $thickness = 1.
     );
 
     /**
@@ -204,6 +204,7 @@ abstract class ezcGraphRenderer
      * @param ezcGraphFontOptions $font Font used for highlight string
      * @param string $text Acutual value
      * @param int $size Size of highlight text
+     * @param ezcGraphColor $markLines
      * @return void
      */
     abstract public function drawDataHighlightText(
@@ -225,7 +226,7 @@ abstract class ezcGraphRenderer
      * Will draw a legend in the bounding box
      * 
      * @param ezcGraphBoundings $boundings Bounding of legend
-     * @param ezcGraphChartElementLegend $labels Legend to draw
+     * @param ezcGraphChartElementLegend $legend Legend to draw
      * @param int $type Type of legend: Protrait or landscape
      * @return void
      */
@@ -310,7 +311,7 @@ abstract class ezcGraphRenderer
      * @param ezcGraphCoordinate $start Start point of axis
      * @param ezcGraphCoordinate $end Endpoint of axis
      * @param ezcGraphChartElementAxis $axis Axis to render
-     * @param ezcGraphLabelRenderer $labelClass Used label renderer
+     * @param ezcGraphAxisLabelRenderer $labelClass Used label renderer
      * @return void
      */
     abstract public function drawAxis(
diff --git a/src/math/boundings.php b/src/math/boundings.php
index a8f474f..b6dd5f0 100644
--- a/src/math/boundings.php
+++ b/src/math/boundings.php
@@ -57,7 +57,7 @@ class ezcGraphBoundings
      * @param float $y1 Bottom right y coordinate
      * @return ezcGraphBoundings
      */
-    public function __construct( $x0 = 0, $y0 = 0, $x1 = false, $y1 = false )
+    public function __construct( $x0 = 0., $y0 = 0., $x1 = false, $y1 = false )
     {
         $this->x0 = $x0;
         $this->y0 = $y0;
diff --git a/src/math/polynom.php b/src/math/polynom.php
index 5266191..6dd2fec 100644
--- a/src/math/polynom.php
+++ b/src/math/polynom.php
@@ -15,6 +15,21 @@
  */
 class ezcGraphPolynom
 {
+    /**
+     * Factors of the polynom
+     *
+     * An example:
+     *  Polynom:
+     *      2 * x^3 + .5 * x - 3
+     *  Array:
+     *      array (
+     *          (int) 3 => (float) 2,
+     *          (int) 1 => (float) .5,
+     *          (int) 0 => (float) -3,
+     *      )
+     * 
+     * @var array
+     */
     protected $values;
 
     // @TODO: Introduce precision option for string output?
diff --git a/src/math/transformation.php b/src/math/transformation.php
index 7f45d41..37f2dba 100644
--- a/src/math/transformation.php
+++ b/src/math/transformation.php
@@ -25,8 +25,6 @@ class ezcGraphTransformation extends ezcGraphMatrix
      * define the initial matrix values. If no array is given an identity 
      * matrix is created.
      * 
-     * @param int $rows
-     * @param int $columns
      * @param array $values
      * @return void
      */
diff --git a/src/math/translation.php b/src/math/translation.php
index 8c2b5a6..aaf021b 100644
--- a/src/math/translation.php
+++ b/src/math/translation.php
@@ -17,7 +17,15 @@
  */
 class ezcGraphTranslation extends ezcGraphTransformation
 {
-    public function __construct( $x = 0, $y = 0 )
+    /**
+     * Constructor
+     * 
+     * @param float $x 
+     * @param float $y 
+     * @return void
+     * @ignore
+     */
+    public function __construct( $x = 0., $y = 0. )
     {
         parent::__construct( array( 
             array( 1, 0, $x ),
diff --git a/src/options/chart.php b/src/options/chart.php
index 075a852..75abcaf 100644
--- a/src/options/chart.php
+++ b/src/options/chart.php
@@ -22,6 +22,13 @@
  */
 class ezcGraphChartOptions extends ezcBaseOptions
 {
+    /**
+     * Constructor
+     * 
+     * @param array $options Default option array
+     * @return void
+     * @ignore
+     */
     public function __construct( array $options = array() )
     {
         $this->properties['width'] = null;
diff --git a/src/options/font.php b/src/options/font.php
index 7ce1529..236931f 100644
--- a/src/options/font.php
+++ b/src/options/font.php
@@ -51,6 +51,11 @@
  */
 class ezcGraphFontOptions extends ezcBaseOptions
 {
+    /**
+     * Indicates if path already has been checked for correct font
+     * 
+     * @var bool
+     */
     protected $pathChecked = false;
 
     /**
diff --git a/src/renderer/2d.php b/src/renderer/2d.php
index 6be4956..bd1e811 100644
--- a/src/renderer/2d.php
+++ b/src/renderer/2d.php
@@ -112,7 +112,7 @@ class ezcGraphRenderer2d
      * @param float $startAngle Start angle
      * @param float $endAngle End angle
      * @param string $label Label of pie segment
-     * @param float $moveOut Move out from middle for hilighting
+     * @param bool $moveOut Move out from middle for hilighting
      * @return void
      */
     public function drawPieSegment(
@@ -563,7 +563,7 @@ class ezcGraphRenderer2d
         ezcGraphColor $symbolColor = null,
         ezcGraphColor $fillColor = null,
         $axisPosition = 0.,
-        $thickness = 1)
+        $thickness = 1. )
     {
         // Perhaps fill up line
         if ( $fillColor !== null &&
@@ -688,6 +688,16 @@ class ezcGraphRenderer2d
         }
     }
 
+    /**
+     * Returns a coordinate in the given bounding box for the given angle
+     * radius with the center as base point.
+     * 
+     * @param ezcGraphBoundings $boundings
+     * @param ezcGraphCoordinate $center
+     * @param float $angle
+     * @param float $radius
+     * @return float
+     */
     protected function getCoordinateFromAngleAndRadius(
         ezcGraphBoundings $boundings,
         ezcGraphCoordinate $center,
@@ -751,7 +761,7 @@ class ezcGraphRenderer2d
         $symbol = ezcGraph::NO_SYMBOL,
         ezcGraphColor $symbolColor = null,
         ezcGraphColor $fillColor = null,
-        $thickness = 1
+        $thickness = 1.
     )
     {
         // Calculate line points from chart coordinates
@@ -823,6 +833,7 @@ class ezcGraphRenderer2d
      * @param ezcGraphFontOptions $font Font used for highlight string
      * @param string $text Acutual value
      * @param int $size Size of highlight text
+     * @param ezcGraphColor $markLines
      * @return void
      */
     public function drawDataHighlightText(
@@ -879,7 +890,7 @@ class ezcGraphRenderer2d
      * Will draw a legend in the bounding box
      * 
      * @param ezcGraphBoundings $boundings Bounding of legend
-     * @param ezcGraphChartElementLegend $labels Legend to draw
+     * @param ezcGraphChartElementLegend $legend Legend to draw;
      * @param int $type Type of legend: Protrait or landscape
      * @return void
      */
@@ -1150,7 +1161,7 @@ class ezcGraphRenderer2d
      * @param ezcGraphCoordinate $start Start point of axis
      * @param ezcGraphCoordinate $end Endpoint of axis
      * @param ezcGraphChartElementAxis $axis Axis to render
-     * @param ezcGraphLabelRenderer $labelClass Used label renderer
+     * @param ezcGraphAxisLabelRenderer $labelClass Used label renderer
      * @return void
      */
     public function drawAxis(
diff --git a/src/renderer/3d.php b/src/renderer/3d.php
index d9771b5..42cfd83 100644
--- a/src/renderer/3d.php
+++ b/src/renderer/3d.php
@@ -160,10 +160,10 @@ class ezcGraphRenderer3d
      * chart.
      * 
      * @param ezcGraphCoordinate $c Coordinate
-     * @param flot $front Distance to front (0 - 1)
+     * @param float $front Distance to front (0 - 1)
      * @return ezcGraphCoordinate Resulting coordinate
      */
-    protected function get3dCoordinate( ezcGraphCoordinate $c, $front = true )
+    protected function get3dCoordinate( ezcGraphCoordinate $c, $front = 1. )
     {
         return new ezcGraphCoordinate(
             ( $c->x - $this->dataBoundings->x0 ) * $this->xDepthFactor + $this->dataBoundings->x0 + $this->depth * $front,
@@ -182,7 +182,7 @@ class ezcGraphRenderer3d
      * @param float $startAngle Start angle
      * @param float $endAngle End angle
      * @param string $label Label of pie segment
-     * @param float $moveOut Move out from middle for hilighting
+     * @param bool $moveOut Move out from middle for hilighting
      * @return void
      */
     public function drawPieSegment(
@@ -1154,7 +1154,7 @@ class ezcGraphRenderer3d
         ezcGraphColor $symbolColor = null,
         ezcGraphColor $fillColor = null,
         $axisPosition = 0.,
-        $thickness = 1 )
+        $thickness = 1. )
     {
         // Calculate line width based on options
         if ( $this->options->seperateLines )
@@ -1330,6 +1330,7 @@ class ezcGraphRenderer3d
      * @param ezcGraphFontOptions $font Font used for highlight string
      * @param string $text Acutual value
      * @param int $size Size of highlight text
+     * @param ezcGraphColor $markLines
      * @return void
      */
     public function drawDataHighlightText(
@@ -1396,7 +1397,7 @@ class ezcGraphRenderer3d
      * Will draw a legend in the bounding box
      * 
      * @param ezcGraphBoundings $boundings Bounding of legend
-     * @param ezcGraphChartElementLegend $labels Legend to draw
+     * @param ezcGraphChartElementLegend $legend Legend to draw;
      * @param int $type Type of legend: Protrait or landscape
      * @return void
      */
@@ -1789,7 +1790,7 @@ class ezcGraphRenderer3d
      * @param ezcGraphCoordinate $start Start point of axis
      * @param ezcGraphCoordinate $end Endpoint of axis
      * @param ezcGraphChartElementAxis $axis Axis to render
-     * @param ezcGraphLabelRenderer $labelClass Used label renderer
+     * @param ezcGraphAxisLabelRenderer $labelClass Used label renderer
      * @return void
      */
     public function drawAxis(
diff --git a/src/renderer/axis_label_radar.php b/src/renderer/axis_label_radar.php
index 938c34e..4d0bd0e 100644
--- a/src/renderer/axis_label_radar.php
+++ b/src/renderer/axis_label_radar.php
@@ -266,6 +266,7 @@ class ezcGraphAxisRadarLabelRenderer extends ezcGraphAxisLabelRenderer
      * @param ezcGraphCoordinate $position Position of step
      * @param ezcGraphCoordinate $direction Direction of axis
      * @param ezcGraphColor $color Color of axis
+     * @param int $stepPosition
      * @return void
      */
     protected function drawGrid( ezcGraphRenderer $renderer, ezcGraphBoundings $boundings, ezcGraphCoordinate $position, ezcGraphCoordinate $direction, ezcGraphColor $color, $stepPosition = null )
diff --git a/src/structs/context.php b/src/structs/context.php
index 6640d67..1110bad 100644
--- a/src/structs/context.php
+++ b/src/structs/context.php
@@ -39,8 +39,9 @@ class ezcGraphContext extends ezcBaseStruct
     /**
      * Simple constructor 
      * 
-     * @param string $dataset Name of dataset
-     * @param string $datapoint Name of datapoint
+     * @param string $dataset
+     * @param string $datapoint
+     * @param string $url
      * @return void
      * @ignore
      */
diff --git a/src/structs/step.php b/src/structs/step.php
index 1838bfa..faedbc7 100644
--- a/src/structs/step.php
+++ b/src/structs/step.php
@@ -64,6 +64,8 @@ class ezcGraphAxisStep
      * @param float $width 
      * @param string $label 
      * @param array $childs 
+     * @param bool $isZero 
+     * @param bool $isLast 
      * @ignore
      */
     public function __construct( $position = .0, $width = .0, $label = false, array $childs = array(), $isZero = false, $isLast = false )