Apache Zeta Components Manual :: Docs For Class ezcGraphAxisRotatedLabelRenderer
Graph::ezcGraphAxisRotatedLabelRenderer
Class ezcGraphAxisRotatedLabelRenderer
Can render axis labels rotated, so that more axis labels fit on one axis.
Produces best results if the axis space was increased, so that more spcae is available below the axis.
- // Define angle manually in degree
- $chart->xAxis->axisLabelRenderer->angle = 45;
- // Increase axis space
- $chart->xAxis->axisSpace = .2;
Source for this file: /Graph/src/renderer/axis_label_rotated.php
ezcBaseOptions | --ezcGraphAxisLabelRenderer | --ezcGraphAxisRotatedLabelRenderer
Version: | //autogentag// |
Descendants
Child Class | Description |
---|---|
ezcGraphAxisRotatedBoxedLabelRenderer | Can render axis labels rotated, so that more axis labels fit on one axis. |
Properties
float | read/write |
$angle
Angle of labels on axis in degrees. |
Member Variables
protected ezcGraphVector |
$direction
Store direction for later coordinate modifications |
protected float |
$offset
Store coordinate offset for later coordinate modifications |
protected array(ezcGraphStep) |
$steps
Store step array for later coordinate modifications |
protected float |
$widthModifier
Store coordinate width modifier for later coordinate modifications |
Inherited Member Variables
From ezcGraphAxisLabelRenderer | |
---|---|
protected |
ezcGraphAxisLabelRenderer::$driver
|
From ezcBaseOptions | |
protected |
ezcBaseOptions::$properties
|
Method Summary
protected float |
calculateLabelLength(
$start
, $end
, $xSpace
, $ySpace
, $axisBoundings
)
Calculate general label length |
protected float |
calculateLabelSize(
$steps
, $nr
, $step
, $xSpace
, $ySpace
, $axisBoundings
)
Calculate label size |
protected void |
determineAngle(
$steps
, $xSpace
, $ySpace
, $axisBoundings
)
Determine label angle |
protected float |
determineTextOffset(
$axis
, $steps
)
Determine text offset. |
public ezcGraphCoordinate |
modifyChartDataPosition(
$coordinate
)
Modify chart data position |
public void |
renderLabels(
$renderer
, $boundings
, $start
, $end
, $axis
, [ $innerBoundings
= null] )
Render Axis labels |
protected void |
renderLabelText(
$renderer
, $axis
, $position
, $label
, $degTextAngle
, $labelLength
, $labelSize
, $lengthReducement
)
Render label text. |
Inherited Methods
From ezcGraphAxisLabelRenderer | |
---|---|
public mixed |
ezcGraphAxisLabelRenderer::determineLineCuttingPoint()
Checks for the cutting point of two lines. |
protected void |
ezcGraphAxisLabelRenderer::drawGrid()
Draw grid |
protected void |
ezcGraphAxisLabelRenderer::drawNonRectangularGrid()
Draw non-rectangular grid lines grid |
protected void |
ezcGraphAxisLabelRenderer::drawRectangularGrid()
Draw rectangular grid |
public void |
ezcGraphAxisLabelRenderer::drawStep()
Draw single step on a axis |
protected array |
ezcGraphAxisLabelRenderer::getAxisSpace()
Get axis space values |
public ezcGraphBoundings |
ezcGraphAxisLabelRenderer::modifyChartBoundings()
Modify chart boundings |
public ezcGraphCoordinate |
ezcGraphAxisLabelRenderer::modifyChartDataPosition()
Modify chart data position |
public abstract void |
ezcGraphAxisLabelRenderer::renderLabels()
Render Axis labels |
From ezcBaseOptions | |
public ezcBaseOptions |
ezcBaseOptions::__construct()
Construct a new options object. |
public void |
ezcBaseOptions::merge()
Merge an array into the actual options object. |
public bool |
ezcBaseOptions::offsetExists()
Returns if an option exists. |
public mixed |
ezcBaseOptions::offsetGet()
Returns an option value. |
public void |
ezcBaseOptions::offsetSet()
Set an option. |
public void |
ezcBaseOptions::offsetUnset()
Unset an option. |
Methods
calculateLabelLength
Calculate general label length
Parameters:
Name | Type | Description |
---|---|---|
$start |
ezcGraphCoordinate | |
$end |
ezcGraphCoordinate | |
$xSpace |
float | |
$ySpace |
float | |
$axisBoundings |
ezcGraphBoundings |
calculateLabelSize
Calculate label size
Calculate the size of a single lable in a single step.
Parameters:
Name | Type | Description |
---|---|---|
$steps |
array | |
$nr |
int | |
$step |
array | |
$xSpace |
float | |
$ySpace |
float | |
$axisBoundings |
ezcGraphBoundings |
determineAngle
Determine label angle
Determine the optiomal angle for the axis labels, of no angle has been provided by the user.
Parameters:
Name | Type | Description |
---|---|---|
$steps |
array | |
$xSpace |
||
$ySpace |
||
$axisBoundings |
ezcGraphBoundings |
determineTextOffset
Determine text offset.
Calculate the label offset and angle, from the configured or evaluated text angle.
Returns the text angle in degrees.
Parameters:
Name | Type | Description |
---|---|---|
$axis |
ezcGraphChartElementAxis | |
$steps |
array |
modifyChartDataPosition
Modify chart data position
Optionally additionally modify the coodinate of a data point
Parameters:
Name | Type | Description |
---|---|---|
$coordinate |
ezcGraphCoordinate | Data point coordinate |
Redefinition of:
Method | Description |
---|---|
ezcGraphAxisLabelRenderer::modifyChartDataPosition() |
Modify chart data position |
Redefined in descendants as:
Method | Description |
---|---|
ezcGraphAxisRotatedBoxedLabelRenderer::modifyChartDataPosition() |
Modify chart data position |
renderLabels
Render Axis labels
Render labels for an axis.
Parameters:
Name | Type | Description |
---|---|---|
$renderer |
ezcGraphRenderer | Renderer used to draw the chart |
$boundings |
ezcGraphBoundings | Boundings of the axis |
$start |
ezcGraphCoordinate | Axis starting point |
$end |
ezcGraphCoordinate | Axis ending point |
$axis |
ezcGraphChartElementAxis | Axis instance |
$innerBoundings |
ezcGraphBoundings |
Redefinition of:
Method | Description |
---|---|
ezcGraphAxisLabelRenderer::renderLabels() |
Render Axis labels |
Redefined in descendants as:
Method | Description |
---|---|
ezcGraphAxisRotatedBoxedLabelRenderer::renderLabels() |
Render Axis labels |
renderLabelText
Render label text.
Render the text of a single label, depending on the position, length and rotation of the label.
Parameters:
Name | Type | Description |
---|---|---|
$renderer |
ezcGraphRenderer | |
$axis |
ezcGraphChartElementAxis | |
$position |
ezcGraphCoordinate | |
$label |
string | |
$degTextAngle |
float | |
$labelLength |
float | |
$labelSize |
float | |
$lengthReducement |
float |