Docs For Class Image

Image_Canvas Image_Canvas(
array
$params)

Create the canvas.

Parameters available:

'width' The width of the graph on the canvas

'height' The height of the graph on the canvas

'left' The left offset of the graph on the canvas

'top' The top offset of the graph on the canvas

Abstract:

Parameters:

array $params — Parameter array

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void addSpline(
array
$params)

Adds "splined" vertex to a polygon

Parameter array: 'x': int X point 'y': int Y point 'p1x': int X Control point 1 'p1y': int Y Control point 1 'p2x': int X Control point 2 'p2y': int Y Control point 2 'url': string [optional] URL to link the vertex to (must be used with 'map_vertices' in polygon() on a canvas that support image maps) 'alt': string [optional] Alternative text to show in the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps) 'target': string [optional] The link target on the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps) 'mapsize': int [optional] The size of the "map", i.e. the size of the hot spot (must be used with 'map_vertices' in polygon() on a canvas that support image maps)

Overridden in child classes as:

Image_Canvas_WithMap::addSpline(): Adds "splined" vertex to a polygon

Parameters:

array $params — Parameter array

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void addText(
mixed
$params)

Writes text

Parameter array: 'x': int X-point of text 'y': int Y-point of text 'text': string The text to add 'alignment': array [optional] Alignment 'color': mixed [optional] The color of the text

Overridden in child classes as:

Image_Canvas_PDF::addText(): Writes text

Image_Canvas_SVG::addText(): Writes text

Image_Canvas_WithMap::addText(): Writes text

Image_Canvas_GD::addText(): Writes text

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void addVertex(
array
$params)

Adds vertex to a polygon

Parameter array: 'x': int X point 'y': int Y point 'url': string [optional] URL to link the vertex to (must be used with 'map_vertices' in polygon() on a canvas that support image maps) 'alt': string [optional] Alternative text to show in the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps) 'target': string [optional] The link target on the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps) 'mapsize': int [optional] The size of the "map", i.e. the size of the hot spot (must be used with 'map_vertices' in polygon() on a canvas that support image maps)

Overridden in child classes as:

Image_Canvas_WithMap::addVertex(): Adds vertex to a polygon

Parameters:

array $params — Parameter array

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void drawEnd(
array
$params)

Draw a line end

Parameter array: 'x': int X point 'y': int Y point 'end': string The end type of the end 'angle': int [optional] The angle with which to draw the end

Overridden in child classes as:

Image_Canvas_GD::drawEnd(): Draw a line end

Parameters:

array $params — Parameter array

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void ellipse(
array
$params)

Draw an ellipse

Parameter array: 'x': int X center point 'y': int Y center point 'rx': int X radius 'ry': int Y radius 'fill': mixed [optional] The fill color 'line': mixed [optional] The line color

Overridden in child classes as:

Image_Canvas_ImageMap::ellipse(): Draw an ellipse

Image_Canvas_PDF::ellipse(): Draw an ellipse

Image_Canvas_SVG::ellipse(): Draw an ellipse

Image_Canvas_WithMap::ellipse(): Draw an ellipse

Image_Canvas_GD::ellipse(): Draw an ellipse

Parameters:

array $params — Parameter array

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void endGroup(
)

End the "current" group.

What this does, depends on the canvas/format.

Overridden in child classes as:

Image_Canvas_SVG::endGroup(): End the "current" group.

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Image_Canvas &factory(
string
$canvas, array
$params)

Canvas factory method.

Supported canvass are:

'png': output in PNG format (using GD)

'jpg': output in JPEG format (using GD)

'pdf': output in PDF format (using PDFlib)

'svg': output in SVG format

'imagemap': output as a html image map

An example of usage:


1     <?php
2      $Canvas =& Image_Graph::factory('png',
3          array('width' => 800, 'height' => 600, 'antialias' => 'native')
4      );
5      ?>

Return: The newly created canvas
Static: This method can be called statically

Parameters:

string	`$canvas`	—	The canvas type
array	`$params`	—	The parameters for the canvas constructor

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int getHeight(
)

Get the height of the canvas

Return: The height

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int getWidth(
)

Get the width of the canvas

Return: The width

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void image(
mixed
$params)

Overlay image

Parameter array: 'x': int X-point of overlayed image 'y': int Y-point of overlayed image 'filename': string The filename of the image to overlay 'width': int [optional] The width of the overlayed image (resizing if possible) 'height': int [optional] The height of the overlayed image (resizing if possible) 'alignment': array [optional] Alignment

Overridden in child classes as:

Image_Canvas_PDF::image(): Overlay image

Image_Canvas_SVG::image(): Overlay image

Image_Canvas_WithMap::image(): Overlay image

Image_Canvas_GD::image(): Overlay image

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void line(
array
$params)

Draw a line

Parameter array: 'x0': int X start point 'y0': int Y start point 'x1': int X end point 'y1': int Y end point 'end0': string [optional] The end type of end0 (the start) 'end1': string [optional] The end type of end1 (the end) 'size0': int [optional] The size of end0 'size1': int [optional] The size of end1 'color': mixed [optional] The line color

Overridden in child classes as:

Image_Canvas_ImageMap::line(): Draw a line

Image_Canvas_PDF::line(): Draw a line

Image_Canvas_SVG::line(): Parameter array:

Image_Canvas_WithMap::line(): Draw a line

Image_Canvas_GD::line(): Draw a line

Parameters:

array $params — Parameter array

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void pieslice(
array
$params)

Draw a pie slice

Parameter array: 'x': int X center point 'y': int Y center point 'rx': int X radius 'ry': int Y radius 'v1': int The starting angle (in degrees) 'v2': int The end angle (in degrees) 'srx': int [optional] Starting X-radius of the pie slice (i.e. for a doughnut) 'sry': int [optional] Starting Y-radius of the pie slice (i.e. for a doughnut) 'fill': mixed [optional] The fill color 'line': mixed [optional] The line color

Overridden in child classes as:

Image_Canvas_ImageMap::pieslice(): Draw a pie slice

Image_Canvas_PDF::pieslice(): Draw a pie slice

Image_Canvas_SVG::pieslice(): Draw a pie slice

Image_Canvas_WithMap::pieslice(): Draw a pie slice

Image_Canvas_GD::pieslice(): Draw a pie slice

Parameters:

array $params — Parameter array

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void polygon(
array
$params)

Draws a polygon

Parameter array: 'connect': bool [optional] Specifies whether the start point should be connected to the endpoint (closed polygon) or not (connected line) 'fill': mixed [optional] The fill color 'line': mixed [optional] The line color

Overridden in child classes as:

Image_Canvas_ImageMap::polygon(): Draws a polygon

Image_Canvas_PDF::polygon(): Parameter array:

Image_Canvas_SVG::polygon(): Parameter array:

Image_Canvas_WithMap::polygon(): Draws a polygon

Image_Canvas_GD::polygon(): Parameter array:

Parameters:

array $params — Parameter array

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void rectangle(
array
$params)

Draw a rectangle

Parameter array: 'x0': int X start point 'y0': int Y start point 'x1': int X end point 'y1': int Y end point 'fill': mixed [optional] The fill color 'line': mixed [optional] The line color

Overridden in child classes as:

Image_Canvas_ImageMap::rectangle(): Draw a rectangle

Image_Canvas_PDF::rectangle(): Draw a rectangle

Image_Canvas_SVG::rectangle(): Draw a rectangle

Image_Canvas_WithMap::rectangle(): Draw a rectangle

Image_Canvas_GD::rectangle(): Draw a rectangle

Parameters:

array $params — Parameter array

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void reset(
)

Reset the canvas.

Includes fillstyle, linestyle, thickness and polygon

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void save(
[array
$params = false])

Save the result of the canvas to a file

Parameter array: 'filename': string The file to output to

Abstract:

Overridden in child classes as:

Image_Canvas_ImageMap::save(): Save the result of the canvas to a file

Image_Canvas_PDF::save(): Output the result of the canvas

Image_Canvas_SVG::save(): Output the result of the canvas

Image_Canvas_GD_JPG::save(): Output the result of the canvas

Image_Canvas_GD_PNG::save(): Output the result of the canvas

Parameters:

array $params — Parameter array, the contents and meaning depends on the actual Canvas

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void setClipping(
[mixed
$params = false])

Set clipping to occur

Parameter array:

'x0': int X point of Upper-left corner 'y0': int X point of Upper-left corner 'x1': int X point of lower-right corner 'y1': int Y point of lower-right corner

Overridden in child classes as:

Image_Canvas_SVG::setClipping(): Set clipping to occur

Image_Canvas_GD::setClipping(): Set clipping to occur

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void setDefaultFont(
array
$fontOptions)

Sets the default font options.

The $font array may have the following entries:

'name' The name of the font. This name must either be supported natively by the canvas or mapped to a font using the font-mapping scheme

'size' Size in pixels

'angle' The angle with which to write the text

Parameters:

array $fontOptions — The font options.

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void setFill(
mixed
$fill)

Sets the style of the filling of drawn objects.

This method gives simple access to setFillColor(), setFillImage() and setGradientFill()

Parameters:

mixed $fill — The fill style

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void setFillColor(
mixed
$color)

Sets the color of the filling of drawn objects

Parameters:

mixed $color — The fill color

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void setFillImage(
string
$filename)

Sets an image that should be used for filling

Overridden in child classes as:

Image_Canvas_PDF::setFillImage(): Sets an image that should be used for filling.

Image_Canvas_SVG::setFillImage(): Sets an image that should be used for filling

Image_Canvas_GD::setFillImage(): Sets an image that should be used for filling

Parameters:

string $filename — The filename of the image to fill with

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void setFont(
array
$fontOptions)

Sets the font options.

The $font array may have the following entries:

'name' The name of the font. This name must either be supported natively by the canvas or mapped to a font using the font-mapping scheme

'size' Size in pixels

'angle' The angle with which to write the text

Overridden in child classes as:

Image_Canvas_PDF::setFont(): Sets the font options.

Image_Canvas_SVG::setFont(): Sets the font options.

Image_Canvas_GD::setFont(): Sets the font options.

Parameters:

array $fontOptions — The font options.

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void setGradientFill(
array
$gradient)

Sets a gradient fill

Overridden in child classes as:

Image_Canvas_PDF::setGradientFill(): Sets a gradient fill

Image_Canvas_SVG::setGradientFill(): Sets a gradient fill

Parameters:

array $gradient — Gradient fill options

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void setLineColor(
mixed
$color)

Sets the color of the line(s) to be drawn

Parameters:

mixed $color — The color of the line

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void setLineThickness(
int
$thickness)

Sets the thickness of the line(s) to be drawn

Parameters:

int $thickness — The actual thickness (in pixels)

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void show(
[array
$params = false])

Output the result of the canvas to the browser

Abstract:

Overridden in child classes as:

Image_Canvas_ImageMap::show(): Output the result of the canvas to the browser

Image_Canvas_PDF::show(): Output the result of the canvas

Image_Canvas_SVG::show(): Output the result of the canvas

Image_Canvas_GD_JPG::show(): Output the result of the canvas

Image_Canvas_GD_PNG::show(): Output the result of the canvas

Parameters:

array $params — Parameter array, the contents and meaning depends on the actual Canvas

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void startGroup(
[string
$name = false])

Start a group.

What this does, depends on the canvas/format.

Overridden in child classes as:

Image_Canvas_SVG::startGroup(): Start a group.

Parameters:

string $name — The name of the group

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int textHeight(
string
$text)

Get the height of a text,

Return: The height of the text

Overridden in child classes as:

Image_Canvas_PDF::textHeight(): Get the height of a text,

Image_Canvas_SVG::textHeight(): Get the height of a text,

Image_Canvas_GD::textHeight(): Get the height of a text.

Parameters:

string $text — The text to get the height of

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int textWidth(
string
$text)

Get the width of a text,

Return: The width of the text

Overridden in child classes as:

Image_Canvas_PDF::textWidth(): Get the width of a text,

Image_Canvas_SVG::textWidth(): Get the width of a text,

Image_Canvas_GD::textWidth(): Get the width of a text,

Parameters:

string $text — The text to get the width of

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void toHtml(
mixed
$params)

Get a canvas specific HTML tag.

This method implicitly saves the canvas to the filename in the filesystem path specified and parses it as URL specified by URL path

Parameter array: 'filename': string 'filepath': string Path to the file on the file system. Remember the final slash 'urlpath': string Path to the file available through an URL. Remember the final slash

Overridden in child classes as:

Image_Canvas_ImageMap::toHtml(): Get a canvas specific HTML tag.

Image_Canvas_PDF::toHtml(): Get a canvas specific HTML tag.

Image_Canvas_SVG::toHtml(): Get a canvas specific HTML tag.

Image_Canvas_GD::toHtml(): Get a canvas specific HTML tag.

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Class: Image_Canvas

Class Overview

Author(s):

Version:

Copyright:

Methods

Child classes:

Inherited Variables

Inherited Methods

Class Details

Method Detail

Image_Canvas (Constructor) [line 151]

Parameters:

addSpline [line 470]

Parameters:

addText [line 581]

addVertex [line 447]

Parameters:

drawEnd [line 380]

Parameters:

ellipse [line 525]

Parameters:

endGroup [line 631]

factory [line 709]

Parameters:

getHeight [line 211]

getWidth [line 201]

image [line 597]

line [line 399]

Parameters:

pieslice [line 546]

Parameters:

polygon [line 491]

Parameters:

rectangle [line 508]

Parameters:

reset [line 365]

save [line 659]

Parameters:

setClipping [line 611]

setDefaultFont [line 338]

Parameters:

setFill [line 244]

Parameters:

setFillColor [line 260]

Parameters:

setFillImage [line 270]

Parameters:

setFont [line 298]

Parameters:

setGradientFill [line 279]

Parameters:

setLineColor [line 231]

Parameters:

setLineThickness [line 221]

Parameters:

show [line 641]

Parameters:

startGroup [line 622]

Parameters:

textHeight [line 567]

Parameters:

textWidth [line 557]

Parameters:

toHtml [line 674]