CLASS PiePlot3D EXTENDS PiePlot

(Defined in: jpgraph_pie3d.php : 18)

PiePlot3D	PiePlot
PiePlot3d() SetAngle() SetCSIMTargets() SetEdge() SetHeight() SetLabelMargin() SetLabels() SetLegends() SetSliceColors() SetStartAngle() ShowBorder()	Explode() ExplodeAll() ExplodeSlice() PiePlot() SetCenter() SetColor() SetCSIMTargets() SetFont() SetFontColor() SetGuideLines() SetGuideLinesAdjust() SetLabelPos() SetLabels() SetLabelType() SetLegends() SetShadow() SetSize() SetSliceColors() SetStartAngle() SetTheme() SetValueType() ShowBorder()

Class usage and Overview

A 3D pie plot is much like a normal pie plot but in a 3D setting. You can control the apperance by specifying the angle of attack for the pie. A small angle show a very "flat" pie while a large angle shows almost a 2D pie. Please note that a 3D pie is much more CPU intensive to draw then the normal pie. To reduce the time you might want to keep the height of the pie as small as you think looks good. The height has a direct linear impact on how long it takes to draw a 3D pie. (See SetHeight()). To view a 3D pieplot you start by constructing a PieGraph() and then adding a numerb of constructed PiePlot3D to this graph.

See also related classes:

PieGraph and PiePlot

Class Methods

function PiePlot3d(&$data)

Construct a new 3D pie plot

Argument Default Description

&$data Data array for slices

Argument	Default	Description
&$data		Data array for slices

Description

This creates a new pie plot using the data supplied. This plot can then be added to the pie graph.

Example

$pieplot3d = new PiePlot3d($ydata);

$piegraph->Add($pieplot3d);

function SetAngle($a)

Specify projection angle for 3D in degrees.

Argument Default Description

$a Projection angle in degrees

Argument	Default	Description
$a		Projection angle in degrees

Description

Specify projection angle for 3D in degrees. Must be between 10 and 80 degrees. A small angle will make the pie very flat and a large angle will make it present much more of pie circle.

Example

$pieplot->SetAngle(45);

function SetCSIMTargets($targets,$alts)

Specify URL for each slice for the image map

Argument Default Description

$targets Array of URL targets

$alts null Array of Alt texts

Argument	Default	Description
$targets		Array of URL targets
$alts	null	Array of Alt texts

Description

Specify URL for each slice for the image map

Example

$targets = array('nextimage.php?1', 'nextimage.php?2', 'nextimage.php?3');
// Show the actual value in the alt text when user hovers the
// cursor over the slice
$alts = array('More details..(%.1f)', 'More details..(%.1f)', 'More details..(%.1f)' );
$pie->SetCSIMTargets($targets,$alts);

function SetEdge($aColor,$aWeight)

Add a line around pie slices

Argument Default Description

$aColor 'black' Color for line

$aWeight 1 Width of line

Argument	Default	Description
$aColor	'black'	Color for line
$aWeight	1	Width of line

Description

Specify if the slices should be separated by a line? If color is specified as "" no line will be used to separate pie slices. Default is to not show any lines.

Example

$pieplot3d->SetEdge('blue',1);

function SetHeight($aHeight)

Specify thickness of the 3D pie plot

Argument Default Description

$aHeight Height in pixels

Argument	Default	Description
$aHeight		Height in pixels

Description

Specify thickness of 3D pie plot. To minimize CPU usuage you should try to keep the thickness to the visual accepatble minimum.

Example

$pieplot->SetHeight(20);

function SetLabelMargin($m)

Specify the distance from the pie to the labels

Argument Default Description

$m Margin in pixels

Argument	Default	Description
$m		Margin in pixels

Description

Specify the distance from the pie to the labels

Example

$pieplot3d->SetLabelMargin(20);

function SetLabels($aLabels,$aLblPosAdj)

Specify slice labels for 3D pies

Argument Default Description

$aLabels Label arrays

$aLblPosAdj "auto" Label position [0.2- 1]

Argument	Default	Description
$aLabels		Label arrays
$aLblPosAdj	"auto"	Label position [0.2- 1]

Description

Specify slice labels for 3D pies. Positoin specify the fraction of the radius wher the labels should be positoined. A values of 1 will position the labels outside the pie.

The labels may include an optional sprintf() formatting string. Before stroking the label to the graph it will be formatted with the actual value (absolute or percentage) depending on what has been specified with the SetLabelType() method.

See also

PiePlot::SetLabelType

Example

// Specify explicit labels and position them outside the pie
$p1->SetLabels(array("Jan\n%.1f%%","Feb\n%.1f%%","Mar\n%.1f%%","Apr\n%.1f%%"),1);

function SetLegends($aLegend)

Set legends for slices

Argument Default Description

$aLegend Array of legends

Argument	Default	Description
$aLegend		Array of legends

Description

Set legends for slices

Example

$plot->SetLegends(array('Jan','Feb','Mar','Apr');

function SetSliceColors($aColors)

Specify color of the individual slices

Argument Default Description

$aColors Array of colors

Argument	Default	Description
$aColors		Array of colors

Description

Specify color of the individual slices. If there are more slices than colors then the colors will wrap around.

Example

$pieplot->SetSliceColors(array('red','blue','green','navy','orange'));

function SetStartAngle($aStart)

Specify start angle for first slice in the Pie

Argument Default Description

$aStart Start angle (in degrees)

Argument	Default	Description
$aStart		Start angle (in degrees)

Description

Specify the start angle in degrees for the first slice in the Pie. Angles are counted counter-clockwise starting at "3'clock".

Example

$pieplot->SetStartAngle(45);

function ShowBorder($exterior,$interior)

Select which borders on the pie should be displayed

Argument Default Description

$exterior Display interior borders

$interior Display exterior borders

Argument	Default	Description
$exterior		Display interior borders
$interior		Display exterior borders

Description

Select which borders should be displayed. Note that when anti-aliasing is enabled no borders can be shown.