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#
# Sparkline PHP Graphing Library
# Copyright 2004 James Byers <jbyers@gmail.com>
# http://sparkline.org
#
# Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
# licenses.
#
# $Id: CHANGES,v 1.3 2008/03/11 19:12:49 jbyers Exp $
#
2005-06-02 James Byers <jbyers@users.sf.net>
* Version 0.2 released
* Corrected line chart behavior for small data sets [1096890]
* Library will create log file if possible [1163412]
* Fixed error message on bad log file [1096895]
* Corrected bitmask on DEBUG_ALL
* Revised structure of SetFeature
2004-11-08 James Byers <jbyers@users.sf.net>
* Version 0.1 released

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#
# Sparkline PHP Graphing Library
# Copyright 2004 James Byers <jbyers@gmail.com>
# http://sparkline.org
#
# Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
# licenses.
#
# $Id: DESIGN,v 1.4 2008/03/11 19:12:49 jbyers Exp $
#
Not much to see. It's 0.1, after all.
Flow
------------------------------------------------------------------------------
Instantiate appropriate Sparkline subclass
Load data, set parameters, all Set* calls
Render
convert coordinates
calculate image size
create image handle
set colors
fill background
draw graph
draw features
Optionally call Draw* functions
Output / OutputFile

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Copyright (c) 2004 James Byers <jbyers@gmail.com>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of James Byers nor the names of its contributors
may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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#
# Sparkline PHP Graphing Library
# Copyright 2004 James Byers <jbyers@gmail.com>
# http://sparkline.org
#
# Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
# licenses.
#
# $Id: README,v 1.3 2008/03/11 19:12:49 jbyers Exp $
#
Installation:
-------------
Sparkline does not have any installation requirements. See the
samples directory for usage ideas.
Requirements:
-------------
Sparkline requires PHP 4.0.6 or newer and GD 2.0 built as a PHP
module.
Troubleshooting and Support:
----------------------------
See http://sparkline.org for troubleshooting advice and support.
Bugs, Features:
---------------
Please submit bugs to the bug tracker:
http://sourceforge.net/tracker/?group_id=122936&atid=694962
Please submit feature requests to the RFE tracker:
http://sourceforge.net/tracker/?group_id=122936&atid=694965
License:
--------
The library is dual-licensed under the BSD and GPL licenses. You
may use this library under the terms of either license. See
LICENSE-BSD.txt and LICENSE-GPL.txt.

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
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When we speak of free software, we are referring to freedom, not
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To protect your rights, we need to make restrictions that forbid
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We protect your rights with two steps: (1) copyright the software, and
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
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convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
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mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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<?php
/*
* Sparkline PHP Graphing Library
* Copyright 2004 James Byers <jbyers@gmail.com>
* http://sparkline.org
*
* Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
* licenses.
*
* $Id: Object.php,v 1.9 2008/03/11 19:12:49 jbyers Exp $
*
*/
define('DEBUG_NONE', 0); // nothing
define('DEBUG_ERROR', 1); // major errors
define('DEBUG_WARNING', 2); // warnings
define('DEBUG_STATS', 4); // dataset, rendering statistics
define('DEBUG_CALLS', 8); // major function calls
define('DEBUG_SET', 16); // all Set methods
define('DEBUG_DRAW', 32); // all Draw methods
define('DEBUG_ALL', 2047); // everything
function error_handler($errno, $errstr, $errfile, $errline) {
switch ($errno) {
case E_ERROR:
$message = "ERROR: ";
break;
case E_WARNING:
$message = "WARNING: ";
break;
case E_PARSE:
$message = "PARSE: ";
break;
case E_NOTICE:
$message = "NOTICE: ";
break;
case E_USER_ERROR:
$message = "UERROR: ";
break;
case E_USER_WARNING:
$message = "UWARNING: ";
break;
case E_USER_NOTICE:
$message = "UNOTICE: ";
break;
default:
$message = "UNKNOWN: ";
break;
} // switch
$message .= "$errstr in $errfile at line $errline\n";
if (($errno != E_NOTICE) && // suppress notices
(error_reporting() != 0)) { // respect supressed errors (@)
log_write($message, 'PHP');
}
} // function error_handler
function log_write($string, $type = '', $date = false) {
global $LOGFILE;
if (isset($LOGFILE)) {
if ($date == false) {
$date = time();
}
$message = date('d/m/Y:H:i:s', $date) . " $type: $string \n";
error_log($message, 3, $LOGFILE);
}
} // function log_write
class Object {
var $isError;
var $logFile;
var $errorList;
var $debugList;
var $debugLevel;
var $startTime;
////////////////////////////////////////////////////////////////////////////
// constructor
//
function Object($catch_errors = true) {
$this->isError = false;
$this->logFile = null;
$this->logDate = '';
$this->errorList = array();
$this->debugList = array();
$this->debugLevel = DEBUG_NONE;
$this->startTime = $this->microTimer();
// if ($catch_errors) {
set_error_handler('error_handler');
//}
} // function Object
////////////////////////////////////////////////////////////////////////////
// utility
//
function microTimer() {
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
} // function microTimer
////////////////////////////////////////////////////////////////////////////
// error handling
//
function SetDebugLevel($level, $file = null) {
global $LOGFILE;
if ($level >= DEBUG_NONE &&
$level <= DEBUG_ALL) {
$this->debugLevel = $level;
}
if ($file != null) {
if ((!file_exists($file) && !touch($file)) ||
!is_writable($file)) {
die("error log file '$file' is not writable to the web server user");
} else {
$this->logFile = $file;
$LOGFILE = $file;
}
}
} // function SetDebugLevel
function Debug($string, $level = DEBUG_WARNING) {
$this->debugList[] = $string;
if ($this->debugLevel & $level &&
$this->logFile != null) {
log_write($string, 'DEBUG');
}
} // function Debug
function Error($string) {
$this->isError = true;
$this->errorList[] = $string;
if ($this->debugLevel & DEBUG_ERROR &&
$this->logFile != null) {
log_write($string, 'ERROR');
}
} // function Error
function GetDebug() {
return $this->debugList;
} // function GetDebug
function GetError() {
return $this->errorList;
} // function GetError
function IsError() {
return $this->isError;
} // function IsError
} // class Object
?>

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<?php
/*
* Sparkline PHP Graphing Library
* Copyright 2004 James Byers <jbyers@gmail.com>
* http://sparkline.org
*
* Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
* licenses.
*
* $Id: Sparkline.php,v 1.10 2008/03/11 19:12:49 jbyers Exp $
*
*/
define('TEXT_TOP', 1);
define('TEXT_RIGHT', 2);
define('TEXT_BOTTOM', 3);
define('TEXT_LEFT', 4);
define('FONT_1', 1);
define('FONT_2', 2);
define('FONT_3', 3);
define('FONT_4', 4);
define('FONT_5', 5);
require_once dirname(__FILE__).'/Object.php';
class Sparkline extends Object {
var $imageX;
var $imageY;
var $imageHandle;
var $graphAreaPx;
var $graphAreaPt;
var $colorList;
var $colorBackground;
var $lineSize;
////////////////////////////////////////////////////////////////////////////
// constructor
//
function Sparkline($catch_errors = true) {
parent::Object($catch_errors);
$this->colorList = array();
$this->colorBackground = 'white';
$this->lineSize = 1;
$this->graphAreaPx = array(array(0, 0), array(0, 0)); // px(L, B), px(R, T)
}
////////////////////////////////////////////////////////////////////////////
// init
//
function Init($x, $y) {
$this->Debug("Sparkline :: Init($x, $y)", DEBUG_CALLS);
$this->imageX = $x;
$this->imageY = $y;
// Set functions may have already set graphAreaPx offsets; add image dimensions
//
$this->graphAreaPx = array(array($this->graphAreaPx[0][0],
$this->graphAreaPx[0][1]),
array($this->graphAreaPx[1][0] + $x - 1,
$this->graphAreaPx[1][1] + $y - 1));
$this->imageHandle = $this->CreateImageHandle($x, $y);
// load default colors; set all color handles
//
$this->SetColorDefaults();
while (list($k, $v) = each($this->colorList)) {
$this->SetColorHandle($k, $this->DrawColorAllocate($k));
}
reset($this->colorList);
return !$this->IsError();
}
////////////////////////////////////////////////////////////////////////////
// color, drawing setup functions
//
function SetColor($name, $r, $g, $b) {
$this->Debug("Sparkline :: SetColor('$name', $r, $g, $b)", DEBUG_SET);
$name = strtolower($name);
$this->colorList[$name] = array('rgb' => array($r, $g, $b));
}
function SetColorHandle($name, $handle) {
$this->Debug("Sparkline :: SetColorHandle('$name', $handle)", DEBUG_SET);
$name = strtolower($name);
if (array_key_exists($name, $this->colorList)) {
$this->colorList[$name]['handle'] = $handle;
return true;
}
return false;
}
function SetColorHex($name, $r, $g, $b) {
$this->Debug("Sparkline :: SetColorHex('$name', $r, $g, $b)", DEBUG_SET);
$this->SetColor($name, hexdec($r), hexdec($g), hexdec($b));
}
function SetColorHtml($name, $rgb) {
$this->Debug("Sparkline :: SetColorHtml('$name', '$rgb')", DEBUG_SET);
$rgb = trim($rgb, '#');
$this->SetColor($name, hexdec(substr($rgb, 0, 2)), hexdec(substr($rgb, 2, 2)), hexdec(substr($rgb, 4, 2)));
}
function SetColorBackground($name) {
$this->Debug("Sparkline :: SetColorBackground('$name')", DEBUG_SET);
$this->colorBackground = $name;
}
function GetColor($name) {
$name = strtolower($name);
if (array_key_exists($name, $this->colorList)) {
return $this->colorList[$name]['rgb'];
} else {
return false;
}
}
function GetColorHandle($name) {
$name = strtolower($name);
if (array_key_exists($name, $this->colorList)) {
return $this->colorList[$name]['handle'];
} else {
$this->Debug("Sparkline :: GetColorHandle color '$name' not set", DEBUG_WARNING);
return false;
}
}
function SetColorDefaults() {
$this->Debug("Sparkline :: SetColorDefaults()", DEBUG_SET);
$colorDefaults = array(array('aqua', '#00FFFF'),
array('black', '#010101'), // TODO failure if 000000?
array('blue', '#0000FF'),
array('fuscia', '#FF00FF'),
array('gray', '#808080'),
array('grey', '#808080'),
array('green', '#008000'),
array('lime', '#00FF00'),
array('maroon', '#800000'),
array('navy', '#000080'),
array('olive', '#808000'),
array('purple', '#800080'),
array('red', '#FF0000'),
array('silver', '#C0C0C0'),
array('teal', '#008080'),
array('white', '#FFFFFF'),
array('yellow', '#FFFF00'));
while (list(, $v) = each($colorDefaults)) {
if (!array_key_exists($v[0], $this->colorList)) {
$this->SetColorHtml($v[0], $v[1]);
}
}
}
function SetLineSize($size) {
$this->Debug("Sparkline :: SetLineSize($size)", DEBUG_CALLS);
$this->lineSize = $size;
}
function GetLineSize() {
return($this->lineSize);
}
function SetPadding($T, $R = null, $B = null, $L = null) {
$this->Debug("Sparkline :: SetPadding($T, $R, $B, $L)", DEBUG_CALLS);
if (null == $R &&
null == $B &&
null == $L) {
$this->graphAreaPx = array(array($this->graphAreaPx[0][0] + $T,
$this->graphAreaPx[0][1] + $T),
array($this->graphAreaPx[1][0] - $T,
$this->graphAreaPx[1][1] - $T));
} else {
$this->graphAreaPx = array(array($this->graphAreaPx[0][0] + $L,
$this->graphAreaPx[0][1] + $B),
array($this->graphAreaPx[1][0] - $R,
$this->graphAreaPx[1][1] - $T));
}
}
////////////////////////////////////////////////////////////////////////////
// canvas setup
//
function CreateImageHandle($x, $y) {
$this->Debug("Sparkline :: CreateImageHandle($x, $y)", DEBUG_CALLS);
$handle = @imagecreatetruecolor($x, $y);
if (!is_resource($handle)) {
$handle = @imagecreate($x, $y);
$this->Debug('imagecreatetruecolor unavailable', DEBUG_WARNING);
}
if (!is_resource($handle)) {
$this->Debug('imagecreate unavailable', DEBUG_WARNING);
$this->Error('could not create image; GD imagecreate functions unavailable');
}
return $handle;
}
////////////////////////////////////////////////////////////////////////////
// drawing primitives
//
// NB: all drawing primitives use the coordinate system where (0,0)
// corresponds to the bottom left of the image, unlike y-inverted
// PHP gd functions
//
function DrawBackground($handle = false) {
$this->Debug("Sparkline :: DrawBackground()", DEBUG_DRAW);
if (!$this->IsError()) {
if ($handle === false) $handle = $this->imageHandle;
return $this->DrawRectangleFilled(0,
0,
imagesx($handle) - 1,
imagesy($handle) - 1,
$this->colorBackground,
$handle);
}
}
function DrawColorAllocate($color, $handle = false) {
$this->Debug("Sparkline :: DrawColorAllocate('$color')", DEBUG_DRAW);
if (!$this->IsError() &&
$colorRGB = $this->GetColor($color)) {
if ($handle === false) $handle = $this->imageHandle;
return imagecolorallocate($handle,
$colorRGB[0],
$colorRGB[1],
$colorRGB[2]);
}
}
function DrawFill($x, $y, $color, $handle = false) {
$this->Debug("Sparkline :: DrawFill($x, $y, '$color')", DEBUG_DRAW);
if (!$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
if ($handle === false) $handle = $this->imageHandle;
return imagefill($handle,
$x,
$this->TxGDYToSLY($y, $handle),
$colorHandle);
}
}
function DrawLine($x1, $y1, $x2, $y2, $color, $thickness = 1, $handle = false) {
$this->Debug("Sparkline :: DrawLine($x1, $y1, $x2, $y2, '$color', $thickness)", DEBUG_DRAW);
if (!$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
if ($handle === false) $handle = $this->imageHandle;
imagesetthickness($handle, $thickness);
$result = imageline($handle,
$x1,
$this->TxGDYToSLY($y1, $handle),
$x2,
$this->TxGDYToSLY($y2, $handle),
$colorHandle);
imagesetthickness($handle, 1);
return $result;
}
}
function DrawPoint($x, $y, $color, $handle = false) {
$this->Debug("Sparkline :: DrawPoint($x, $y, '$color')", DEBUG_DRAW);
if (!$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
if ($handle === false) $handle = $this->imageHandle;
return imagesetpixel($handle,
$x,
$this->TxGDYToSLY($y, $handle),
$colorHandle);
}
}
function DrawRectangle($x1, $y1, $x2, $y2, $color, $handle = false) {
$this->Debug("Sparkline :: DrawRectangle($x1, $y1, $x2, $y2 '$color')", DEBUG_DRAW);
if (!$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
if ($handle === false) $handle = $this->imageHandle;
return imagerectangle($handle,
$x1,
$this->TxGDYToSLY($y1, $handle),
$x2,
$this->TxGDYToSLY($y2, $handle),
$colorHandle);
}
}
function DrawRectangleFilled($x1, $y1, $x2, $y2, $color, $handle = false) {
$this->Debug("Sparkline :: DrawRectangleFilled($x1, $y1, $x2, $y2 '$color')", DEBUG_DRAW);
if (!$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
// NB: switch y1, y2 post conversion
//
if ($y1 < $y2) {
$yt = $y1;
$y1 = $y2;
$y2 = $yt;
}
if ($handle === false) $handle = $this->imageHandle;
return imagefilledrectangle($handle,
$x1,
$this->TxGDYToSLY($y1, $handle),
$x2,
$this->TxGDYToSLY($y2, $handle),
$colorHandle);
}
}
function DrawCircleFilled($x, $y, $diameter, $color, $handle = false) {
$this->Debug("Sparkline :: DrawCircleFilled($x, $y, $diameter, '$color')", DEBUG_DRAW);
if (!$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
if ($handle === false) $handle = $this->imageHandle;
return imagefilledellipse($handle,
$x,
$this->TxGDYToSLY($y, $handle),
$diameter,
$diameter,
$colorHandle);
}
}
function DrawText($string, $x, $y, $color, $font = FONT_1, $handle = false) {
$this->Debug("Sparkline :: DrawText('$string', $x, $y, '$color', $font)", DEBUG_DRAW);
if (!$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
// adjust for font height so x,y corresponds to bottom left of font
//
if ($handle === false) $handle = $this->imageHandle;
return imagestring($handle,
$font,
$x,
$this->TxGDYToSLY($y + imagefontheight($font), $handle),
$string,
$colorHandle);
}
}
function DrawTextRelative($string, $x, $y, $color, $position, $padding = 2, $font = FONT_1, $handle = false) {
$this->Debug("Sparkline :: DrawTextRelative('$string', $x, $y, '$color', $position, $font, $padding)", DEBUG_DRAW);
if (!empty($string) && !$this->IsError() &&
$colorHandle = $this->GetColorHandle($color)) {
if ($handle === false) $handle = $this->imageHandle;
// rendered text width, height
//
$textHeight = imagefontheight($font);
$textWidth = imagefontwidth($font) * strlen($string);
// set (pxX, pxY) based on position and point
//
switch($position) {
case TEXT_TOP:
$x = $x - round($textWidth / 2);
$y = $y + $padding;
break;
case TEXT_RIGHT:
$x = $x + $padding;
$y = $y - round($textHeight / 2);
break;
case TEXT_BOTTOM:
$x = $x - round($textWidth / 2);
$y = $y - $padding - $textHeight;
break;
case TEXT_LEFT:
default:
$x = $x - $padding - $textWidth;
$y = $y - round($textHeight / 2);
break;
}
// truncate bounds based on string size in pixels, image bounds
// order: TRBL
//
$y = min($y, $this->GetImageHeight() - $textHeight);
$x = min($x, $this->GetImageWidth() - $textWidth);
$y = max($y, 0);
$x = max($x, 0);
return $this->DrawText($string,
$x,
$y,
$color,
$font,
$handle);
}
}
function DrawImageCopyResampled($dhandle, $shandle, $dx, $dy, $sx, $sy, $dw, $dh, $sw, $sh) {
$this->Debug("Sparkline :: DrawImageCopyResampled($dhhandle, $shandle, $dx, $dy, $sx, $sy, $dw, $dh, $sw, $sh)", DEBUG_DRAW);
if (!$this->IsError()) {
return imagecopyresampled($dhandle, // dest handle
$shandle, // src handle
$dx, $dy, // dest x, y
$sx, $sy, // src x, y
$dw, $dh, // dest w, h
$sw, $sh); // src w, h
}
}
////////////////////////////////////////////////////////////////////////////
// coordinate system functions
// world coordinates are referenced as points or pt
// graph coordinates are referenced as pixels or px
// sparkline inverts GD Y pixel coordinates; the bottom left of the
// image rendering area is px(0,0)
// all coordinate transformation functions are prefixed with Tx
// all coordinate transformation functions depend on a valid image handle
// and will only return valid results after all Set* calls are performed
//
function TxGDYToSLY($gdY, $handle) {
return imagesy($handle) - 1 - $gdY;
}
function TxPxToPt($pxX, $pxY, $handle) {
// TODO; must occur after data series conversion
}
function TxPtToPx($ptX, $ptY, $handle) {
// TODO; must occur after data series conversion
}
function GetGraphWidth() {
return $this->graphAreaPx[1][0] - $this->graphAreaPx[0][0];
}
function GetGraphHeight() {
return $this->graphAreaPx[1][1] - $this->graphAreaPx[0][1];
}
function GetImageWidth() {
return $this->imageX;
}
function GetImageHeight() {
return $this->imageY;
}
////////////////////////////////////////////////////////////////////////////
// image output
//
function Output($file = '') {
$this->Debug("Sparkline :: Output($file)", DEBUG_CALLS);
if ($this->IsError()) {
$colorError = imagecolorallocate($this->imageHandle, 0xFF, 0x00, 0x00);
imagestring($this->imageHandle,
1,
($this->imageX / 2) - (5 * imagefontwidth(1) / 2),
($this->imageY / 2) - (imagefontheight(1) / 2),
"ERROR",
$colorError);
}
if ($file == '') {
header('Content-type: image/png');
imagepng($this->imageHandle);
} else {
imagepng($this->imageHandle, $file);
}
$this->Debug('Sparkline :: Output - total execution time: ' . round($this->microTimer() - $this->startTime, 4) . ' seconds', DEBUG_STATS);
}
function OutputToFile($file) {
$this->Output($file);
}
function OutputToDataURI() {
ob_start(null, 4096);
$this->Output();
return "data:image/png;base64,".base64_encode(ob_get_clean());
}
}
?>

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<?php
/*
* Sparkline PHP Graphing Library
* Copyright 2004 James Byers <jbyers@gmail.com>
* http://sparkline.org
*
* Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
* licenses.
*
* $Id: Sparkline_Bar.php,v 1.3 2008/03/11 19:12:49 jbyers Exp $
*
*/
require_once dirname(__FILE__).'/Sparkline.php';
class Sparkline_Bar extends Sparkline {
var $dataSeries;
var $dataSeriesStats;
var $dataSeriesConverted;
var $yMin;
var $yMax;
var $barWidth;
var $barSpacing;
var $barColorDefault;
var $barColorUnderscoreDefault;
////////////////////////////////////////////////////////////////////////////
// constructor
//
function Sparkline_Bar($catch_errors = true) {
parent::Sparkline($catch_errors);
$this->dataSeries = array();
$this->dataSeriesStats = array();
$this->dataSeriesConverted = array();
$this->barWidth = 1;
$this->barSpacing = 1;
$this->barColorDefault = 'black';
$this->barColorUnderscoreDefault = 'black';
} // function Sparkline
////////////////////////////////////////////////////////////////////////////
// color, image property setting
//
function SetBarWidth($value) {
$this->Debug("Sparkline_Bar :: SetBarWidth($value)", DEBUG_SET);
$this->barWidth = $value;
} // function SetBarWidth
function SetBarSpacing($value) {
$this->Debug("Sparkline_Bar :: SetBarSpacing($value)", DEBUG_SET);
$this->barSpacing = $value;
} // function SetBarSpacing
function SetBarColorDefault($value) {
$this->Debug("Sparkline_Bar :: SetBarColorDefault($value)", DEBUG_SET);
$this->barColorDefault = $value;
} // function SetBarColorDefault
function SetBarColorUnderscoreDefault($value) {
$this->Debug("Sparkline_Bar :: SetBarColorUnderscoreDefault($value)", DEBUG_SET);
$this->barColorUnderscoreDefault = $value;
} // function SetBarColorUnderscoreDefault
////////////////////////////////////////////////////////////////////////////
// data setting
//
function SetData($x, $y, $color = null, $underscore = false, $series = 1) {
if(!is_numeric($x)) {
$x = trim($x);
}
if(!is_numeric($y)) {
$y = trim($y);
}
$this->Debug("Sparkline_Bar :: SetData($x, $y, $series)", DEBUG_SET);
if (!is_numeric($x) ||
!is_numeric($y)) {
$this->Debug("Sparkline_Bar :: SetData rejected values($x, $y) in series $series", DEBUG_WARNING);
return false;
} // if
if ($color == null) {
$color = $this->barColorDefault;
}
$this->dataSeries[$series][$x] = array('value' => $y,
'color' => $color,
'underscore' => $underscore);
if (!isset($this->dataSeriesStats[$series]['min']) ||
$y < $this->dataSeriesStats[$series]['min']) {
$this->dataSeriesStats[$series]['min'] = $y;
}
if (!isset($this->dataSeriesStats[$series]['max']) ||
abs($y) > $this->dataSeriesStats[$series]['max']) {
$this->dataSeriesStats[$series]['max'] = abs($y);
}
} // function SetData
function SetYMin($value) {
$this->Debug("Sparkline_Bar :: SetYMin($value)", DEBUG_SET);
$this->yMin = $value;
}
function SetYMax($value) {
$this->Debug("Sparkline_Bar :: SetYMax($value)", DEBUG_SET);
$this->yMax = $value;
}
function ConvertDataSeries($series, $xBound, $yBound) {
$this->Debug("Sparkline_Bar :: ConvertDataSeries($series, $xBound, $yBound)", DEBUG_CALLS);
if (!isset($this->yMin)) {
$this->yMin = $this->dataSeriesStats[$series]['min'];
}
if (!isset($this->yMax)) {
$this->yMax = $this->dataSeriesStats[$series]['max'];
}
while (list(, $v) = each($this->dataSeries[$series])) {
$y = floor($v['value'] * ($yBound / (abs($this->yMax) + abs($this->yMin))));
$this->dataSeriesConverted[$series][] = array('value' => $y,
'color' => $v['color'],
'underscore' => $v['underscore']);
if (!isset($this->dataSeriesStats[$series]['min_converted']) ||
$y < $this->dataSeriesStats[$series]['min_converted']) {
$this->dataSeriesStats[$series]['min_converted'] = $y;
}
if (!isset($this->dataSeriesStats[$series]['max_converted']) ||
abs($y) > $this->dataSeriesStats[$series]['max_converted']) {
$this->dataSeriesStats[$series]['max_converted'] = abs($y);
}
}
reset($this->dataSeries[$series]);
} // function ConvertDataSeries
function CalculateImageWidth() {
$this->Debug("Sparkline_Bar :: CalculateImageWidth()", DEBUG_CALLS);
$count = sizeof($this->dataSeries[1]);
return (($count - 1) * $this->barSpacing) + ($count * $this->barWidth);
} // function CalculateImageWidth
////////////////////////////////////////////////////////////////////////////
// rendering
//
function Render($y) {
$this->Debug("Sparkline_Bar :: Render($y)", DEBUG_CALLS);
// calculate size based on sets for init
//
if (!parent::Init($this->CalculateImageWidth(), $y)) {
return false;
}
// convert based on actual canvas size
//
$this->ConvertDataSeries(1, $this->GetGraphWidth(), $this->GetGraphHeight());
// stats debugging
//
$this->Debug('Sparkline_Bar :: Draw' .
' series: 1 min: ' . $this->dataSeriesStats[1]['min'] .
' max: ' . $this->dataSeriesStats[1]['max'] .
' height: ' . $this->GetGraphHeight() .
' yfactor: ' . ($this->GetGraphHeight() / (abs($this->dataSeriesStats[1]['max']) + abs($this->dataSeriesStats[1]['min']))));
$this->DrawBackground();
$yAxis = abs(min($this->dataSeriesStats[1]['min_converted'], 0));
for ($i = 0; $i < sizeof($this->dataSeriesConverted[1]); $i++) {
$this->DrawRectangleFilled($i * ($this->barWidth + $this->barSpacing),
$yAxis,
$i * ($this->barWidth + $this->barSpacing) + $this->barWidth - 1,
$yAxis + $this->dataSeriesConverted[1][$i]['value'],
$this->dataSeriesConverted[1][$i]['color']);
if ($this->dataSeriesConverted[1][$i]['underscore']) {
$this->DrawLine(max(0, $i * ($this->barWidth + $this->barSpacing) - ($this->barSpacing / 2)),
$yAxis,
min($this->GetGraphWidth(), $i * ($this->barWidth + $this->barSpacing) + ($this->barSpacing / 2)),
$yAxis,
$this->barColorUnderscoreDefault);
}
}
} // function Render
} // class Sparkline_Bar
?>

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<?php
/*
* Sparkline PHP Graphing Library
* Copyright 2004 James Byers <jbyers@gmail.com>
* http://sparkline.org
*
* Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
* licenses.
*
* $Id: Sparkline_Line.php,v 1.10 2008/03/11 19:12:49 jbyers Exp $
*
*/
require_once dirname(__FILE__).'/Sparkline.php';
class Sparkline_Line extends Sparkline {
var $dataSeries;
var $dataSeriesStats;
var $dataSeriesConverted;
var $yMin;
var $yMax;
var $featurePoint;
////////////////////////////////////////////////////////////////////////////
// constructor
//
function Sparkline_Line($catch_errors = true) {
parent::Sparkline($catch_errors);
$this->dataSeries = array();
$this->dataSeriesStats = array();
$this->dataSeriesConverted = array();
$this->colorBackground = 'backgroundColor';
$this->featurePoint = array();
} // function Sparkline
////////////////////////////////////////////////////////////////////////////
// data setting
//
function SetData($x, $y, $series = 1) {
if(!is_numeric($x)) {
$x = trim($x);
}
if(!is_numeric($y)) {
$y = trim($y);
}
$this->Debug("Sparkline_Line :: SetData($x, $y, $series)", DEBUG_SET);
if (!is_numeric($x) ||
!is_numeric($y)) {
$this->Debug("Sparkline_Line :: SetData rejected values($x, $y) in series $series", DEBUG_WARNING);
return false;
} // if
$this->dataSeries[$series][$x] = $y;
if (!isset($this->dataSeriesStats[$series]['yMin']) ||
$y < $this->dataSeriesStats[$series]['yMin']) {
$this->dataSeriesStats[$series]['yMin'] = $y;
}
if (!isset($this->dataSeriesStats[$series]['xMin']) ||
$x < $this->dataSeriesStats[$series]['xMin']) {
$this->dataSeriesStats[$series]['xMin'] = $x;
}
if (!isset($this->dataSeriesStats[$series]['yMax']) ||
$y > $this->dataSeriesStats[$series]['yMax']) {
$this->dataSeriesStats[$series]['yMax'] = $y;
}
if (!isset($this->dataSeriesStats[$series]['xMax']) ||
$x > $this->dataSeriesStats[$series]['xMax']) {
$this->dataSeriesStats[$series]['xMax'] = $x;
}
} // function SetData
function SetYMin($value) {
$this->Debug("Sparkline_Line :: SetYMin($value)", DEBUG_SET);
$this->yMin = $value;
} // function SetYMin
function SetYMax($value) {
$this->Debug("Sparkline_Line :: SetYMax($value)", DEBUG_SET);
$this->yMax = $value;
} // function SetYMin
function ConvertDataSeries($series, $xBound, $yBound) {
$this->Debug("Sparkline_Line :: ConvertDataSeries($series, $xBound, $yBound)", DEBUG_CALLS);
if (!isset($this->yMin)) {
$this->yMin = $this->dataSeriesStats[$series]['yMin'];
}
if (!isset($this->xMin)) {
$this->xMin = $this->dataSeriesStats[$series]['XMin'];
}
if (!isset($this->yMax)) {
$this->yMax = $this->dataSeriesStats[$series]['yMax'];
}
if (!isset($this->xMax)) {
$this->xMax = $this->dataSeriesStats[$series]['xMax'];
}
$this->yRange = $this->yMax + ($this->yMin * -1);
for ($i = 0; $i < sizeof($this->dataSeries[$series]); $i++) {
$y = round(($this->dataSeries[$series][$i] + ($this->yMin * -1)) * (($yBound-1) / $this->yRange));
$x = round($i * $xBound / (sizeof($this->dataSeries[$series])));
$this->dataSeriesConverted[$series][] = array($x, $y);
$this->Debug("Sparkline :: ConvertDataSeries series $series value $i ($x, $y)", DEBUG_SET);
}
} // function ConvertDataSeries
////////////////////////////////////////////////////////////////////////////
// features
//
function SetFeaturePoint($x, $y, $color, $diameter, $text = '', $position = TEXT_TOP, $font = FONT_1) {
$this->Debug("Sparkline_Line :: SetFeaturePoint($x, $y, '$color', $diameter, '$text')", DEBUG_CALLS);
$this->featurePoint[] = array('ptX' => $x,
'ptY' => $y,
'color' => $color,
'diameter' => $diameter,
'text' => $text,
'textpos' => $position,
'font' => $font);
} // function SetFeaturePoint
////////////////////////////////////////////////////////////////////////////
// low quality rendering
//
function Render($x, $y) {
$this->Debug("Sparkline_Line :: Render($x, $y)", DEBUG_CALLS);
if (!parent::Init($x, $y)) {
return false;
}
// convert based on graphAreaPx bounds
//
$this->ConvertDataSeries(1, $this->GetGraphWidth(), $this->GetGraphHeight());
// stats debugging
//
$this->Debug('Sparkline_Line :: Draw' .
' series: 1 min: ' . $this->dataSeriesStats[1]['yMin'] .
' max: ' . $this->dataSeriesStats[1]['yMax'] .
' offset: ' . ($this->dataSeriesStats[1]['yMin'] * -1) .
' height: ' . $this->GetGraphHeight() + 1 .
' yfactor: ' . ($this->GetGraphHeight() / ($this->dataSeriesStats[1]['yMax'] + ($this->dataSeriesStats[1]['yMin'] * -1))));
$this->Debug('Sparkline_Line :: Draw' .
' drawing area:' .
' (' . $this->graphAreaPx[0][0] . ',' . $this->graphAreaPx[0][1] . '), ' .
' (' . $this->graphAreaPx[1][0] . ',' . $this->graphAreaPx[1][1] . ')');
$this->DrawBackground();
// draw graph
//
for ($i = 0; $i < sizeof($this->dataSeriesConverted[1]) - 1; $i++) {
$this->DrawLine($this->dataSeriesConverted[1][$i][0] + $this->graphAreaPx[0][0],
$this->dataSeriesConverted[1][$i][1] + $this->graphAreaPx[0][1],
$this->dataSeriesConverted[1][$i+1][0] + $this->graphAreaPx[0][0],
$this->dataSeriesConverted[1][$i+1][1] + $this->graphAreaPx[0][1],
'lineColor');
}
// draw features
//
while (list(, $v) = each($this->featurePoint)) {
$pxY = round(($v['ptY'] + ($this->yMin * -1)) * ($this->GetGraphHeight() / $this->yRange));
$pxX = round($v['ptX'] * $this->GetGraphWidth() / sizeof($this->dataSeries[1]));
$this->DrawCircleFilled($pxX + $this->graphAreaPx[0][0],
$pxY + $this->graphAreaPx[0][1],
$v['diameter'],
$v['color'],
$this->imageHandle);
$this->DrawTextRelative($v['text'],
$pxX + $this->graphAreaPx[0][0],
$pxY + $this->graphAreaPx[0][1],
$v['color'],
$v['textpos'],
round($v['diameter'] / 2),
$v['font'],
$this->imageHandle);
}
} // function Render
////////////////////////////////////////////////////////////////////////////
// high quality rendering
//
function RenderResampled($x, $y) {
$this->Debug("Sparkline_Line :: RenderResampled($x, $y)", DEBUG_CALLS);
if (!parent::Init($x, $y)) {
return false;
}
// draw background on standard image in case of resample blit miss
//
$this->DrawBackground($this->imageHandle);
// convert based on virtual canvas: x based on size of dataset, y scaled proportionately
// if size of data set is small, default to 4X target canvas size
//
$xVC = max(sizeof($this->dataSeries[1]), 4 * $x);
$yVC = floor($xVC * ($this->GetGraphHeight() / $this->GetGraphWidth()));
$this->ConvertDataSeries(1, $xVC, $yVC);
// stats debugging
//
$this->Debug('Sparkline_Line :: DrawResampled' .
' series: 1 min: ' . $this->dataSeriesStats[1]['yMin'] .
' max: ' . $this->dataSeriesStats[1]['yMax'] .
' offset: ' . ($this->dataSeriesStats[1]['yMin'] * -1) .
' height: ' . $this->GetGraphHeight() .
' yfactor: ' . ($this->GetGraphHeight() / ($this->dataSeriesStats[1]['yMax'] + ($this->dataSeriesStats[1]['yMin'] * -1))), DEBUG_STATS);
$this->Debug('Sparkline_Line :: DrawResampled' .
' drawing area:' .
' (' . $this->graphAreaPx[0][0] . ',' . $this->graphAreaPx[0][1] . '), ' .
' (' . $this->graphAreaPx[1][0] . ',' . $this->graphAreaPx[1][1] . ')');
// create virtual image
// allocate colors
// draw background, graph
// resample and blit onto original graph
//
$imageVCHandle = $this->CreateImageHandle($xVC, $yVC);
while (list($k, $v) = each($this->colorList)) {
$this->SetColorHandle($k, $this->DrawColorAllocate($k, $imageVCHandle));
}
reset($this->colorList);
$this->DrawBackground($imageVCHandle);
for ($i = 0; $i < sizeof($this->dataSeriesConverted[1]) - 1; $i++) {
$this->DrawLine($this->dataSeriesConverted[1][$i][0],
$this->dataSeriesConverted[1][$i][1],
$this->dataSeriesConverted[1][$i+1][0],
$this->dataSeriesConverted[1][$i+1][1],
'lineColor',
$this->GetLineSize(),
$imageVCHandle);
}
$this->DrawImageCopyResampled($this->imageHandle,
$imageVCHandle,
$this->graphAreaPx[0][0], // dest x
$this->GetImageHeight() - $this->graphAreaPx[1][1], // dest y
0, 0, // src x, y
$this->GetGraphWidth(), // dest width
$this->GetGraphHeight(), // dest height
$xVC, // src width
$yVC); // src height
// draw features
//
while (list(, $v) = each($this->featurePoint)) {
$pxY = round(($v['ptY'] + ($this->yMin * -1)) * ($this->GetGraphHeight() / $this->yRange));
$pxX = round($v['ptX'] * $this->GetGraphWidth() / sizeof($this->dataSeries[1]));
$this->DrawCircleFilled($pxX + $this->graphAreaPx[0][0],
$pxY + $this->graphAreaPx[0][1],
$v['diameter'],
$v['color'],
$this->imageHandle);
$this->DrawTextRelative($v['text'],
$pxX + $this->graphAreaPx[0][0],
$pxY + $this->graphAreaPx[0][1],
$v['color'],
$v['textpos'],
round($v['diameter'] / 2),
$v['font'],
$this->imageHandle);
}
} // function RenderResampled
} // class Sparkline_Line
?>