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File containing the ezcGraphGdDriver class
| Copyright: | Copyright (C) 2005-2009 eZ Systems AS. All rights reserved. |
| License: | http://ez.no/licenses/new_bsd New BSD License |
| Version: | 1.5 |
| File Size: | 1236 lines (43 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
ezcGraphGdDriver:: (21 methods):
__construct()
getImage()
allocate()
imageCreateFrom()
supersample()
drawPolygon()
drawLine()
getTextBoundings()
renderText()
drawTextBox()
drawAllTexts()
drawCircleSector()
drawCircularArcStep()
drawCircularArc()
drawCircle()
drawImage()
addImages()
getMimeType()
renderToOutput()
render()
getResource()
Class: ezcGraphGdDriver - X-Ref
Driver using PHPs ext/gd to draw images. The GD extension is available on| __construct( array $options = array() X-Ref |
| Constructor param: array $options Default option array return: void |
| getImage() X-Ref |
| Returns the image resource to draw on. If no resource exists the image will be created. The size of the returned image depends on the supersampling factor and the size of the chart. return: resource |
| allocate( ezcGraphColor $color ) X-Ref |
| Allocates a color This function tries to allocate the requested color. If the color already exists in the imaga it will be reused. param: ezcGraphColor $color return: int Color index |
| imageCreateFrom( $file ) X-Ref |
| Creates an image resource from an image file param: string $file Filename return: resource Image |
| supersample( $value ) X-Ref |
| Supersamples a single coordinate value. Applies supersampling to a single coordinate value. param: float $value Coordinate value return: float Supersampled coordinate value |
| drawPolygon( array $points, ezcGraphColor $color, $filled = true, $thickness = 1. ) X-Ref |
| Draws a single polygon. param: array $points Point array param: ezcGraphColor $color Polygon color param: mixed $filled Filled param: float $thickness Line thickness return: void |
| drawLine( ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphColor $color, $thickness = 1. ) X-Ref |
| Draws a line param: ezcGraphCoordinate $start Start point param: ezcGraphCoordinate $end End point param: ezcGraphColor $color Line color param: float $thickness Line thickness return: void |
| getTextBoundings( $size, ezcGraphFontOptions $font, $text ) X-Ref |
| Returns boundings of text depending on the available font extension param: float $size Textsize param: ezcGraphFontOptions $font Font param: string $text Text return: ezcGraphBoundings Boundings of text |
| renderText( $image, $text, $type, $path, ezcGraphColor $color, ezcGraphCoordinate $position, $size, ezcGraphRotation $rotation = null ) X-Ref |
| 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 return: void |
| drawTextBox( $string, ezcGraphCoordinate $position, $width, $height, $align, ezcGraphRotation $rotation = null ) X-Ref |
| Writes text in a box of desired size param: string $string Text param: ezcGraphCoordinate $position Top left position param: float $width Width of text box param: float $height Height of text box param: int $align Alignement of text param: ezcGraphRotation $rotation return: void |
| drawAllTexts() X-Ref |
| Draw all collected texts The texts are collected and their maximum possible font size is calculated. This function finally draws the texts on the image, this delayed drawing has two reasons: 1) This way the text strings are always on top of the image, what results in better readable texts 2) The maximum possible font size can be calculated for a set of texts with the same font configuration. Strings belonging to one chart element normally have the same font configuration, so that all texts belonging to one element will have the same font size. return: void |
| drawCircleSector( ezcGraphCoordinate $center, $width, $height, $startAngle, $endAngle, ezcGraphColor $color, $filled = true ) X-Ref |
| Draws a sector of cirlce param: ezcGraphCoordinate $center Center of circle param: mixed $width Width param: mixed $height Height param: mixed $startAngle Start angle of circle sector param: mixed $endAngle End angle of circle sector param: ezcGraphColor $color Color param: mixed $filled Filled return: void |
| drawCircularArcStep( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color ) X-Ref |
| Draws a single element of a circular arc ext/gd itself does not support something like circular arcs, so that this functions draws rectangular polygons as a part of circular arcs to interpolate them. This way it is possible to apply a linear gradient to the circular arc, because we draw single steps anyway. param: ezcGraphCoordinate $center Center of ellipse param: integer $width Width of ellipse param: integer $height Height of ellipse param: integer $size Height of border param: float $startAngle Starting angle of circle sector param: float $endAngle Ending angle of circle sector param: ezcGraphColor $color Color of Border return: void |
| drawCircularArc( ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled = true ) X-Ref |
| Draws a circular arc param: ezcGraphCoordinate $center Center of ellipse param: integer $width Width of ellipse param: integer $height Height of ellipse param: integer $size Height of border 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 |
| drawCircle( ezcGraphCoordinate $center, $width, $height, ezcGraphColor $color, $filled = true ) X-Ref |
| Draw circle param: ezcGraphCoordinate $center Center of ellipse param: mixed $width Width of ellipse param: mixed $height height of ellipse param: ezcGraphColor $color Color param: mixed $filled Filled return: void |
| drawImage( $file, ezcGraphCoordinate $position, $width, $height ) X-Ref |
| Draw an image The actual drawing of the image is delayed, to not apply supersampling to the image. The image will normally be resized using the gd function imagecopyresampled, which provides nice antialiased scaling, so that additional supersampling would make the image look blurred. The delayed images will be pre-processed, so that they are draw in the back of everything else. param: mixed $file Image file param: ezcGraphCoordinate $position Top left position param: mixed $width Width of image in destination image param: mixed $height Height of image in destination image return: void |
| addImages( $image ) X-Ref |
| Draw all images to image resource handler param: resource $image Image to draw on return: resource Updated image resource |
| getMimeType() X-Ref |
| Return mime type for current image format return: string |
| renderToOutput() X-Ref |
| Render image directly to output The method renders the image directly to the standard output. You normally do not want to use this function, because it makes it harder to proper cache the generated graphs. return: void |
| render( $file ) X-Ref |
| Finally save image param: string $file Destination filename return: void |
| getResource() X-Ref |
| Get resource of rendered result Return the resource of the rendered result. You should not use this method before you called either renderToOutput() or render(), as the image may not be completely rendered until then. return: resource |
| Generated: Thu Jul 28 15:48:31 2011 | Cross-referenced by PHPXref 0.7 |