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Diffstat (limited to 'src/libchart')
| -rw-r--r-- | src/libchart/COPYING | 510 | ||||
| -rw-r--r-- | src/libchart/ChangeLog | 24 | ||||
| -rw-r--r-- | src/libchart/README | 45 | ||||
| -rw-r--r-- | src/libchart/classes/Axis.php | 167 | ||||
| -rw-r--r-- | src/libchart/classes/BarChart.php | 172 | ||||
| -rw-r--r-- | src/libchart/classes/Chart.php | 213 | ||||
| -rw-r--r-- | src/libchart/classes/Color.php | 74 | ||||
| -rw-r--r-- | src/libchart/classes/HorizontalChart.php | 169 | ||||
| -rw-r--r-- | src/libchart/classes/LineChart.php | 171 | ||||
| -rw-r--r-- | src/libchart/classes/PieChart.php | 386 | ||||
| -rw-r--r-- | src/libchart/classes/Point.php | 83 | ||||
| -rw-r--r-- | src/libchart/classes/Primitive.php | 59 | ||||
| -rw-r--r-- | src/libchart/classes/Text.php | 139 | ||||
| -rw-r--r-- | src/libchart/classes/VerticalChart.php | 169 | ||||
| -rw-r--r-- | src/libchart/fonts/DejaVuSansCondensed-Bold.ttf | bin | 0 -> 62716 bytes | |||
| -rw-r--r-- | src/libchart/fonts/DejaVuSansCondensed.ttf | bin | 0 -> 73144 bytes | |||
| -rw-r--r-- | src/libchart/images/PoweredBy.png | bin | 0 -> 1608 bytes | |||
| -rw-r--r-- | src/libchart/libchart.php | 33 |
18 files changed, 2414 insertions, 0 deletions
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Please have a look at the demo files for more information. +There is also a tutorial available at the project homepage. + + +-------------------------------------------------------------------------------- + + + Contact info +============== + +WWW: http://naku.dohcrew.com/libchart/ +MAIL: jm.tremeaux at gmail dot com diff --git a/src/libchart/classes/Axis.php b/src/libchart/classes/Axis.php new file mode 100644 index 0000000..c80fe97 --- /dev/null +++ b/src/libchart/classes/Axis.php @@ -0,0 +1,167 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Automatic axis boundaries and ticks calibration + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class Axis + { + /** + * Creates a new axis formatter + * + * @access public + * @param integer minimum value on the axis + * @param integer maximum value on the axis + */ + + function Axis($min, $max) + { + $this->min = $min; + $this->max = $max; + + $this->guide = 10; + } + + /** + * Computes value between two ticks + * + * @access private + */ + + function quantizeTics() + { + // Approximate number of decades, in [1..10[ + + $norm = $this->delta / $this->magnitude; + + // Approximate number of tics per decade + + $posns = $this->guide / $norm; + + if ($posns > 20) + $tics = 0.05; // e.g. 0, .05, .10, ... + else + if ($posns > 10) + $tics = 0.2; // e.g. 0, .1, .2, ... + else + if ($posns > 5) + $tics = 0.4; // e.g. 0, 0.2, 0.4, ... + else + if ($posns > 3) + $tics = 0.5; // e.g. 0, 0.5, 1, ... + else + if ($posns > 2) + $tics = 1; // e.g. 0, 1, 2, ... + else + if ($posns > 0.25) + $tics = 2; // e.g. 0, 2, 4, 6 + else + $tics = ceil($norm); + + $this->tics = $tics * $this->magnitude; + } + + /** + * Computes automatic boundaries on the axis + * + * @access public + */ + + function computeBoundaries() + { + // Range + + $this->delta = abs($this->max - $this->min); + + // Check for null distribution + + if($this->delta == 0) + $this->delta = 1; + + // Order of magnitude of range + + $this->magnitude = pow(10, floor(log10($this->delta))); + + $this->quantizeTics(); + + $this->displayMin = floor($this->min / $this->tics) * $this->tics; + $this->displayMax = ceil($this->max / $this->tics) * $this->tics; + $this->displayDelta = $this->displayMax - $this->displayMin; + + // Check for null distribution + + if($this->displayDelta == 0) + $this->displayDelta = 1; + } + + /** + * Set boundaries on the axis. Theses values override the automatic values. + * + * @access public + */ + + function setBoundaries($sampleCount, $yMinValue, $yMaxValue) + { + $this->sampleCount = $sampleCount; + $this->yMinValue = $yMinValue; + $this->yMaxValue = $yMaxValue; + } + + /** + * Get the lower boundary on the axis + * + * @access public + * @return integer lower boundary on the axis + */ + + function getLowerBoundary() + { + return $this->displayMin; + } + + /** + * Get the upper boundary on the axis + * + * @access public + * @return integer upper boundary on the axis + */ + + function getUpperBoundary() + { + return $this->displayMax; + } + + /** + * Get the value between two ticks + * + * @access public + * @return integer value between two ticks + */ + + function getTics() + { + return $this->tics; + } + } +?> diff --git a/src/libchart/classes/BarChart.php b/src/libchart/classes/BarChart.php new file mode 100644 index 0000000..5b658ca --- /dev/null +++ b/src/libchart/classes/BarChart.php @@ -0,0 +1,172 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Base bar chart class (horizontal or vertical) + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * @abstract + */ + + class BarChart extends Chart + { + /** + * Creates a new bar chart + * + * @access protected + * @param integer width of the image + * @param integer height of the image + */ + + function BarChart($width, $height) + { + parent::Chart($width, $height); + + $this->setMargin(5); + $this->setLowerBound(0); + } + + /** + * Compute the boundaries on the axis + * + * @access protected + */ + + function computeBound() + { + // Compute lower and upper bound on the value axis + + $point = current($this->point); + + // Check if some points were defined + + if(!$point) + { + $yMin = 0; + $yMax = 1; + } + else + { + $yMax = $yMin = $point->getY(); + + foreach($this->point as $point) + { + $y = $point->getY(); + + if($y < $yMin) + $yMin = $y; + + if($y > $yMax) + $yMax = $y; + } + } + + $this->yMinValue = isset($this->lowerBound) ? $this->lowerBound : $yMin; + $this->yMaxValue = isset($this->upperBound) ? $this->upperBound : $yMax; + + // Compute boundaries on the sample axis + + $this->sampleCount = count($this->point); + } + + /** + * Set manually the lower boundary value (overrides the automatic formatting) + * Typical usage is to set the bars starting from zero + * + * @access public + * @param double lower boundary value + */ + + function setLowerBound($lowerBound) + { + $this->lowerBound = $lowerBound; + } + + /** + * Set manually the upper boundary value (overrides the automatic formatting) + * + * @access public + * @param double upper boundary value + */ + + function setUpperBound($upperBound) + { + $this->upperBound = $upperBound; + } + + /** + * Compute the image layout + * + * @access protected + */ + + function computeLabelMargin() + { + $this->axis = new Axis($this->yMinValue, $this->yMaxValue); + $this->axis->computeBoundaries(); + + $this->graphTLX = $this->margin + $this->labelMarginLeft; + $this->graphTLY = $this->margin + $this->labelMarginTop; + $this->graphBRX = $this->width - $this->margin - $this->labelMarginRight; + $this->graphBRY = $this->height - $this->margin - $this->labelMarginBottom; + } + + /** + * Create the image + * + * @access protected + */ + + function createImage() + { + parent::createImage(); + + $this->axisColor1 = new Color(201, 201, 201); + $this->axisColor2 = new Color(158, 158, 158); + + $this->aquaColor1 = new Color(242, 242, 242); + $this->aquaColor2 = new Color(231, 231, 231); + $this->aquaColor3 = new Color(239, 239, 239); + $this->aquaColor4 = new Color(253, 253, 253); + + $this->barColor1 = new Color(42, 71, 181); + $this->barColor2 = new Color(33, 56, 143); + + $this->barColor3 = new Color(172, 172, 210); + $this->barColor4 = new Color(117, 117, 143); + + // Aqua-like background + + $aquaColor = Array($this->aquaColor1, $this->aquaColor2, $this->aquaColor3, $this->aquaColor4); + + for($i = $this->graphTLY; $i < $this->graphBRY; $i++) + { + $color = $aquaColor[($i + 3) % 4]; + $this->primitive->line($this->graphTLX, $i, $this->graphBRX, $i, $color); + } + + // Axis + + imagerectangle($this->img, $this->graphTLX - 1, $this->graphTLY, $this->graphTLX, $this->graphBRY, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $this->graphTLX - 1, $this->graphBRY, $this->graphBRX, $this->graphBRY + 1, $this->axisColor1->getColor($this->img)); + } + } +?> diff --git a/src/libchart/classes/Chart.php b/src/libchart/classes/Chart.php new file mode 100644 index 0000000..639eabd --- /dev/null +++ b/src/libchart/classes/Chart.php @@ -0,0 +1,213 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /*! \mainpage Libchart + * + * This is the reference API, automatically compiled by <a href="http://www.stack.nl/~dimitri/doxygen/">Doxygen</a>. + * You can find here information that is not covered by the <a href="../samplecode/">tutorial</a>. + * + */ + + /** + * Base chart class + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * @abstract + */ + + class Chart + { + /** + * Creates a new chart + * + * @access protected + * @param integer width of the image + * @param integer height of the image + */ + + function chart($width, $height) + { + $this->width = $width; + $this->height = $height; + + $this->reset(); + } + + /** + * Initialize the chart + * + * @access private + */ + + function reset() + { + $this->text = new Text(); + $this->point = array(); + + unset($this->lowerBound); + unset($this->upperBound); + + $this->setTitle("Untitled chart"); + $this->setLogo(dirname(__FILE__) . "/../images/PoweredBy.png"); + } + + /** + * Add a new sampling point to the chart + * + * @access public + * @param Point sampling point to add + */ + + function addPoint($point) + { + array_push($this->point, $point); + } + + /** + * Sets the title + * + * @access public + * @param string new title + */ + + function setTitle($title) + { + $this->title = $title; + } + + /** + * Sets the logo image file name + * + * @access public + * @param string new logo image file name + */ + + function setLogo($logoFileName) + { + $this->logoFileName = $logoFileName; + } + + /** + * Print the title to the image + * + * @access private + */ + + function printTitle() + { + $this->text->printCentered($this->img, ($this->labelMarginTop + $this->margin) / 2, $this->textColor, $this->title, $this->text->fontCondensedBold); + } + + /** + * Print the logo image to the image + * + * @access private + */ + + function printLogo() + { + @$logoImage = imageCreateFromPNG($this->logoFileName); + + if($logoImage) + imagecopymerge($this->img, $logoImage, 2*$this->margin, $this->margin, 0, 0, imagesx($logoImage), imagesy($logoImage), 100); + } + + /** + * Set the outer margin + * + * @access public + * @param integer outer margin value in pixels + */ + + function setMargin($margin) + { + $this->margin = $margin; + } + + /** + * Set the label left margin + * + * @access public + * @param integer label left margin value in pixels + */ + + function setLabelMarginLeft($labelMarginLeft) + { + $this->labelMarginLeft = $labelMarginLeft; + } + + /** + * Set the label right margin + * + * @access public + * @param integer label right margin value in pixels + */ + + function setLabelMarginRight($labelMarginRight) + { + $this->labelMarginRight = $labelMarginRight; + } + + /** + * Set the label top margin + * + * @access public + * @param integer label top margin value in pixels + */ + + function setLabelMarginTop($labelMarginTop) + { + $this->labelMarginTop = $labelMarginTop; + } + + /** + * Set the label bottom margin + * + * @access public + * @param integer label bottom margin value in pixels + */ + + function setLabelMarginBottom($labelMarginBottom) + { + $this->labelMarginBottom = $labelMarginBottom; + } + + /** + * Creates and initialize the image + * + * @access protected + */ + + function createImage() + { + $this->img = imagecreatetruecolor($this->width, $this->height); + + $this->primitive = new Primitive($this->img); + + $this->backGroundColor = new Color(255, 255, 255); + $this->textColor = new Color(0, 0, 0); + + // White background + + imagefilledrectangle($this->img, 0, 0, $this->width - 1, $this->height - 1, $this->backGroundColor->getColor($this->img)); + } + } +?> diff --git a/src/libchart/classes/Color.php b/src/libchart/classes/Color.php new file mode 100644 index 0000000..178435b --- /dev/null +++ b/src/libchart/classes/Color.php @@ -0,0 +1,74 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Color + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class Color + { + /** + * Creates a new color + * + * @access public + * @param integer red [0,255] + * @param integer green [0,255] + * @param integer blue [0,255] + * @param integer alpha [0,255] + */ + + function Color($red, $green, $blue, $alpha = 0) + { + $this->red = (int)$red; + $this->green = (int)$green; + $this->blue = (int)$blue; + $this->alpha = (int)round($alpha * 127.0 / 255); + + $this->gdColor = null; + } + + /** + * Get GD color + * + * @access public + * @param $img GD image resource + */ + + function getColor($img) + { + // Checks if color has already been allocated + + if(!$this->gdColor) + { + if($this->alpha == 0 || !function_exists('imagecolorallocatealpha')) + $this->gdColor = imagecolorallocate($img, $this->red, $this->green, $this->blue); + else + $this->gdColor = imagecolorallocatealpha($img, $this->red, $this->green, $this->blue, $this->alpha); + } + + // Returns GD color + + return $this->gdColor; + } + } +?> diff --git a/src/libchart/classes/HorizontalChart.php b/src/libchart/classes/HorizontalChart.php new file mode 100644 index 0000000..4b4e069 --- /dev/null +++ b/src/libchart/classes/HorizontalChart.php @@ -0,0 +1,169 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Horizontal bar chart + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class HorizontalChart extends BarChart + { + /** + * Creates a new horizontal bar chart + * + * @access public + * @param integer width of the image + * @param integer height of the image + */ + + function HorizontalChart($width = 600, $height = 250) + { + parent::BarChart($width, $height); + + $this->setLabelMarginLeft(150); + $this->setLabelMarginRight(30); + $this->setLabelMarginTop(40); + $this->setLabelMarginBottom(30); + } + + /** + * Print the axis + * + * @access private + */ + + function printAxis() + { + // Check if some points were defined + + if(!$this->sampleCount) + return; + + $minValue = $this->axis->getLowerBoundary(); + $maxValue = $this->axis->getUpperBoundary(); + $stepValue = $this->axis->getTics(); + + // Horizontal axis + + for($value = $minValue; $value <= $maxValue; $value += $stepValue) + { + $x = $this->graphTLX + ($value - $minValue) * ($this->graphBRX - $this->graphTLX) / ($this->axis->displayDelta); + + imagerectangle($this->img, $x - 1, $this->graphBRY + 2, $x, $this->graphBRY + 3, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $x - 1, $this->graphBRY, $x, $this->graphBRY + 1, $this->axisColor2->getColor($this->img)); + + $this->text->printText($this->img, $x, $this->graphBRY + 5, $this->textColor, $value, $this->text->fontCondensed, $this->text->HORIZONTAL_CENTER_ALIGN); + } + + // Vertical Axis + + $rowHeight = ($this->graphBRY - $this->graphTLY) / $this->sampleCount; + + reset($this->point); + + for($i = 0; $i <= $this->sampleCount; $i++) + { + $y = $this->graphBRY - $i * $rowHeight; + + imagerectangle($this->img, $this->graphTLX - 3, $y, $this->graphTLX - 2, $y + 1, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $this->graphTLX - 1, $y, $this->graphTLX, $y + 1, $this->axisColor2->getColor($this->img)); + + if($i < $this->sampleCount) + { + $point = current($this->point); + next($this->point); + + $text = $point->getX(); + + $this->text->printText($this->img, $this->graphTLX - 5, $y - $rowHeight / 2, $this->textColor, $text, $this->text->fontCondensed, $this->text->HORIZONTAL_RIGHT_ALIGN | $this->text->VERTICAL_CENTER_ALIGN); + } + } + } + + /** + * Print the bars + * + * @access private + */ + + function printBar() + { + // Check if some points were defined + + if(!$this->sampleCount) + return; + + reset($this->point); + + $minValue = $this->axis->getLowerBoundary(); + $maxValue = $this->axis->getUpperBoundary(); + $stepValue = $this->axis->getTics(); + + $rowHeight = ($this->graphBRY - $this->graphTLY) / $this->sampleCount; + + for($i = 0; $i < $this->sampleCount; $i++) + { + $y = $this->graphBRY - $i * $rowHeight; + + $point = current($this->point); + next($this->point); + + $value = $point->getY(); + + $xmax = $this->graphTLX + ($value - $minValue) * ($this->graphBRX - $this->graphTLX) / ($this->axis->displayDelta); + + $this->text->printText($this->img, $xmax + 5, $y - $rowHeight / 2, $this->textColor, $value, $this->text->fontCondensed, $this->text->VERTICAL_CENTER_ALIGN); + + // Horizontal bar + + $y1 = $y - $rowHeight * 4 / 5; + $y2 = $y - $rowHeight * 1 / 5; + + imagefilledrectangle($this->img, $this->graphTLX + 1, $y1, $xmax, $y2, $this->barColor2->getColor($this->img)); + imagefilledrectangle($this->img, $this->graphTLX + 2, $y1+1, $xmax - 4, $y2, $this->barColor1->getColor($this->img)); + } + } + + /** + * Render the chart image + * + * @access public + * @param string name of the file to render the image to (optional) + */ + + function render($fileName = null) + { + $this->computeBound(); + $this->computeLabelMargin(); + $this->createImage(); + $this->printLogo(); + $this->printTitle(); + $this->printAxis(); + $this->printBar(); + + if(isset($fileName)) + imagepng($this->img, $fileName); + else + imagepng($this->img); + } + } +?> diff --git a/src/libchart/classes/LineChart.php b/src/libchart/classes/LineChart.php new file mode 100644 index 0000000..9d44eba --- /dev/null +++ b/src/libchart/classes/LineChart.php @@ -0,0 +1,171 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Line chart + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class LineChart extends BarChart + { + /** + * Creates a new line chart + * + * @access public + * @param integer width of the image + * @param integer height of the image + */ + + function LineChart($width = 600, $height = 250) + { + parent::BarChart($width, $height); + + $this->setLabelMarginLeft(50); + $this->setLabelMarginRight(50); + $this->setLabelMarginTop(40); + $this->setLabelMarginBottom(50); + } + + /** + * Print the axis + * + * @access private + */ + + function printAxis() + { + // Check if some points were defined + + if($this->sampleCount < 2) + return; + + $minValue = $this->axis->getLowerBoundary(); + $maxValue = $this->axis->getUpperBoundary(); + $stepValue = $this->axis->getTics(); + + // Line axis + + for($value = $minValue; $value <= $maxValue; $value += $stepValue) + { + $y = $this->graphBRY - ($value - $minValue) * ($this->graphBRY - $this->graphTLY) / ($this->axis->displayDelta); + + imagerectangle($this->img, $this->graphTLX - 3, $y, $this->graphTLX - 2, $y + 1, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $this->graphTLX - 1, $y, $this->graphTLX, $y + 1, $this->axisColor2->getColor($this->img)); + + $this->text->printText($this->img, $this->graphTLX - 5, $y, $this->textColor, $value, $this->text->fontCondensed, $this->text->HORIZONTAL_RIGHT_ALIGN | $this->text->VERTICAL_CENTER_ALIGN); + } + + // Horizontal Axis + + $columnWidth = ($this->graphBRX - $this->graphTLX) / ($this->sampleCount - 1); + + reset($this->point); + + for($i = 0; $i < $this->sampleCount; $i++) + { + $x = $this->graphTLX + $i * $columnWidth; + + imagerectangle($this->img, $x - 1, $this->graphBRY + 2, $x, $this->graphBRY + 3, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $x - 1, $this->graphBRY, $x, $this->graphBRY + 1, $this->axisColor2->getColor($this->img)); + + $point = current($this->point); + next($this->point); + + $text = $point->getX(); + + $this->text->printDiagonal($this->img, $x - 5, $this->graphBRY + 10, $this->textColor, $text); + } + } + + /** + * Print the lines + * + * @access private + */ + + function printLine() + { + // Check if some points were defined + + if($this->sampleCount < 2) + return; + + reset($this->point); + + $minValue = $this->axis->getLowerBoundary(); + $maxValue = $this->axis->getUpperBoundary(); + + $columnWidth = ($this->graphBRX - $this->graphTLX) / ($this->sampleCount - 1); + + $x1 = null; + $y1 = null; + + for($i = 0; $i < $this->sampleCount; $i++) + { + $x2 = $this->graphTLX + $i * $columnWidth; + + $point = current($this->point); + next($this->point); + + $value = $point->getY(); + + $y2 = $this->graphBRY - ($value - $minValue) * ($this->graphBRY - $this->graphTLY) / ($this->axis->displayDelta); + +// $this->text->printText($this->img, $x2, $y2 - 5, $this->textColor, $value, $this->text->fontCondensed, $this->text->HORIZONTAL_CENTER_ALIGN | $this->text->VERTICAL_BOTTOM_ALIGN); + + // Draw line + + if($x1) + { + $this->primitive->line($x1, $y1, $x2, $y2, $this->barColor4, 4); + $this->primitive->line($x1, $y1 - 1, $x2, $y2 - 1, $this->barColor3, 2); + } + + $x1 = $x2; + $y1 = $y2; + } + } + + /** + * Render the chart image + * + * @access public + * @param string name of the file to render the image to (optional) + */ + + function render($fileName = null) + { + $this->computeBound(); + $this->computeLabelMargin(); + $this->createImage(); + $this->printLogo(); + $this->printTitle(); + $this->printAxis(); + $this->printLine(); + + if(isset($fileName)) + imagepng($this->img, $fileName); + else + imagepng($this->img); + } + } +?> diff --git a/src/libchart/classes/PieChart.php b/src/libchart/classes/PieChart.php new file mode 100644 index 0000000..dacbf2b --- /dev/null +++ b/src/libchart/classes/PieChart.php @@ -0,0 +1,386 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Pie chart + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class PieChart extends Chart + { + /** + * Creates a new pie chart + * + * @access public + * @param integer width of the image + * @param integer height of the image + */ + + function PieChart($width = 600, $height = 250) + { + parent::Chart($width, $height); + + $this->setMargin(5); + $this->setLabelMarginLeft(30); + $this->setLabelMarginRight(30); + $this->setLabelMarginTop(50); + $this->setLabelMarginBottom(30); + $this->setLabelMarginCenter(20); + + $this->setPieRatio(0.55); + + $this->labelBoxWidth = 15; + $this->labelBoxHeight = 15; + } + + /** + * Set the ratio of the pie image over the legend + * + * @access public + * @param double ratio (value between 0 and 1) + */ + + function setPieRatio($pieRatio) + { + $this->pieRatio = $pieRatio; + } + + /** + * Compare two sampling point values, order from biggest to lowest value + * + * @access private + * @param double first value + * @param double second value + * @return integer result of the comparison + */ + + function sortPie($v1, $v2) + { + return $v1[0] == $v2[0] ? 0 : + $v1[0] > $v2[0] ? -1 : + 1; + } + + /** + * Compute pie values in percentage and sort them + * + * @access private + */ + + function computePercent() + { + $this->total = 0; + $this->percent = array(); + + foreach($this->point as $point) + $this->total += $point->getY(); + + foreach($this->point as $point) + { + $percent = $this->total == 0 ? 0 : 100 * $point->getY() / $this->total; + + array_push($this->percent, array($percent, $point)); + } + if($this->order) + usort($this->percent, array("PieChart", "sortPie")); + } + + /** + * Set the margin between the pie image and the legend + * + * @access public + * @param integer margin value in pixels + */ + + function setLabelMarginCenter($labelMarginCenter) + { + $this->labelMarginCenter = $labelMarginCenter; + } + + /** + * Draw a gray box with nice borders + * + * @access private + * @param integer top left coordinate (x) + * @param integer top left coordinate (y) + * @param integer bottom right coordinate (x) + * @param integer bottom right coordinate (y) + */ + + function outlinedBox($x1, $y1, $x2, $y2) + { + imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $x1, $y1, $x1 + 1, $y1 + 1, $this->axisColor2->getColor($this->img)); + imagerectangle($this->img, $x2 - 1, $y1, $x2, $y1 + 1, $this->axisColor2->getColor($this->img)); + imagerectangle($this->img, $x1, $y2 - 1, $x1 + 1, $y2, $this->axisColor2->getColor($this->img)); + imagerectangle($this->img, $x2 - 1, $y2 - 1, $x2, $y2, $this->axisColor2->getColor($this->img)); + } + + /** + * Compute image layout + * + * @access private + */ + + function computeLabelMargin() + { + $graphWidth = $this->width - $this->margin * 2 - $this->labelMarginLeft - $this->labelMarginCenter - $this->labelMarginRight; + + $this->pieTLX = $this->margin + $this->labelMarginLeft; + $this->pieTLY = $this->margin + $this->labelMarginTop; + $this->pieBRX = $this->pieTLX + $graphWidth * $this->pieRatio; + $this->pieBRY = $this->height - $this->margin - $this->labelMarginBottom; + + $this->pieCenterX = $this->pieTLX + ($this->pieBRX - $this->pieTLX) / 2; + $this->pieCenterY = $this->pieTLY + ($this->pieBRY - $this->pieTLY) / 2; + + $this->pieWidth = round(($this->pieBRX - $this->pieTLX) * 4 / 5); + $this->pieHeight = round(($this->pieBRY - $this->pieTLY) * 3.7 / 5); + $this->pieDepth = round($this->pieWidth * 0.05); + + $this->labelTLX = $this->pieBRX + $this->labelMarginCenter; + $this->labelTLY = $this->pieTLY; + $this->labelBRX = $this->pieTLX + $this->labelMarginCenter + $graphWidth; + $this->labelBRY = $this->pieBRY; + + } + + /** + * Creates the pie chart image + * + * @access private + */ + + function createImage() + { + parent::createImage(); + + $pieColors = array( + array(2, 78, 0), + array(148, 170, 36), + array(233, 191, 49), + array(240, 127, 41), + array(243, 63, 34), + array(190, 71, 47), + array(135, 81, 60), + array(128, 78, 162), + array(121, 75, 255), + array(142, 165, 250), + array(162, 254, 239), + array(137, 240, 166), + array(104, 221, 71), + array(98, 174, 35), + array(93, 129, 1) + ); + + $this->pieColor = array(); + $this->pieShadowColor = array(); + $shadowFactor = 0.5; + + foreach($pieColors as $colorRGB) + { + list($red, $green, $blue) = $colorRGB; + + $color = new Color($red, $green, $blue); + $shadowColor = new Color($red * $shadowFactor, + $green * $shadowFactor, + $blue * $shadowFactor); + + array_push($this->pieColor, $color); + array_push($this->pieShadowColor, $shadowColor); + } + + $this->axisColor1 = new Color(201, 201, 201); + $this->axisColor2 = new Color(158, 158, 158); + + $this->aquaColor1 = new Color(242, 242, 242); + $this->aquaColor2 = new Color(231, 231, 231); + $this->aquaColor3 = new Color(239, 239, 239); + $this->aquaColor4 = new Color(253, 253, 253); + + // Legend box + + $this->outlinedBox($this->pieTLX, $this->pieTLY, $this->pieBRX, $this->pieBRY); + + // Aqua-like background + + $aquaColor = Array($this->aquaColor1, $this->aquaColor2, $this->aquaColor3, $this->aquaColor4); + + for($i = $this->pieTLY + 2; $i < $this->pieBRY - 1; $i++) + { + $color = $aquaColor[($i + 3) % 4]; + $this->primitive->line($this->pieTLX + 2, $i, $this->pieBRX - 2, $i, $color); + } + } + + /** + * Print legend + * + * @access private + */ + + function printLabel() + { + $i = 0; + + $boxX1 = $this->labelTLX + $this->margin; + $boxX2 = $boxX1 + $this->labelBoxWidth; + + foreach($this->percent as $a) + { + list($percent, $point) = $a; + $legend = $point->getX(); + + if($point->getColor() != null) + $color = $point->getColor(); + else + $color = $this->pieColor[$i % count($this->pieColor)]; + + $boxY1 = $this->labelTLY + $this->margin + $i * ($this->labelBoxHeight + $this->margin); + $boxY2 = $boxY1 + $this->labelBoxHeight; + + $this->outlinedBox($boxX1, $boxY1, $boxX2, $boxY2); + imagefilledrectangle($this->img, $boxX1 + 2, $boxY1 + 2, $boxX2 - 2, $boxY2 - 2, $color->getColor($this->img)); + + $this->text->printText($this->img, $boxX2 + $this->margin, $boxY1 + $this->labelBoxHeight / 2, $this->textColor, $legend, $this->text->fontCondensed, $this->text->VERTICAL_CENTER_ALIGN); + + $i++; + } + } + + /** + * Draw a 2D disc + * + * @access private + * @param integer center coordinate (y) + * @param array colors for each portion + * @param bitfield drawing mode + */ + + function drawDisc($cy, $colorArray, $mode, $shad=false) + { + $i = 0; + $angle1 = 0; + $percentTotal = 0; + + foreach($this->percent as $a) + { + list($percent, $point) = $a; + + if($point->getColor() != null) + $color = $shad ? $point->getShadowColor() : $point->getColor(); + else + $color = $colorArray[$i % count($colorArray)]; + + $percentTotal += $percent; + $angle2 = $percentTotal * 360 / 100; + + imagefilledarc($this->img, $this->pieCenterX, $cy, $this->pieWidth, $this->pieHeight, $angle1, $angle2, $color->getColor($this->img), $mode); + + $angle1 = $angle2; + + $i++; + } + } + + /** + * Print the percentage text + * + * @access private + */ + + function drawPercent() + { + $angle1 = 0; + $percentTotal = 0; + + foreach($this->percent as $a) + { + list($percent, $point) = $a; + + // If value is null, don't print percentage + + if($percent <= 0) + continue; + + $percentTotal += $percent; + $angle2 = $percentTotal * 2 * M_PI / 100; + + $angle = $angle1 + ($angle2 - $angle1) / 2; + $text = number_format($percent) . "%"; + + $x = cos($angle) * ($this->pieWidth + 35) / 2 + $this->pieCenterX; + $y = sin($angle) * ($this->pieHeight + 35) / 2 + $this->pieCenterY; + + $this->text->printText($this->img, $x, $y, $this->textColor, $text, $this->text->fontCondensed, $this->text->HORIZONTAL_CENTER_ALIGN | $this->text->VERTICAL_CENTER_ALIGN); + + $angle1 = $angle2; + } + } + + /** + * Print the pie chart + * + * @access private + */ + + function printPie() + { + // Silhouette + + for ($cy = $this->pieCenterY + $this->pieDepth / 2; $cy >= $this->pieCenterY - $this->pieDepth / 2; $cy--) + $this->drawDisc($cy, $this->pieShadowColor, IMG_ARC_EDGED, true); + + + // Top + + $this->drawDisc($this->pieCenterY - $this->pieDepth / 2, $this->pieColor, IMG_ARC_PIE); + + // Top Outline + + $this->drawPercent(); + } + + /** + * Render the chart image + * + * @access public + * @param string name of the file to render the image to (optional) + */ + + function render($fileName = null) + { + $this->computeLabelMargin(); + $this->computePercent(); + $this->createImage(); + $this->printLogo(); + $this->printTitle(); + $this->printPie(); + $this->printLabel(); + + if(isset($fileName)) + imagepng($this->img, $fileName); + else + imagepng($this->img); + } + } +?> diff --git a/src/libchart/classes/Point.php b/src/libchart/classes/Point.php new file mode 100644 index 0000000..5c0d9ec --- /dev/null +++ b/src/libchart/classes/Point.php @@ -0,0 +1,83 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Sampling point + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class Point + { + /** + * Creates a new sampling point of coordinates (x, y) + * + * @access public + * @param integer x coordinate (label) + * @param integer y coordinate (value) + * @param array color R,G,B + */ + + function Point($x, $y, $c=null) + { + $this->x = $x; + $this->y = $y; + if($c != null) { + list($r,$g,$b) = $c; + $this->color = new Color($r,$g,$b); + $shadowFactor = 0.5; + $this->shadowColor = new Color($r * $shadowFactor, + $g * $shadowFactor, + $b * $shadowFactor); + } else { + $this->color = null; + $this->shadowColor = null; + } + } + + /** + * Gets the x coordinate (label) + * + * @access public + * @return integer x coordinate (label) + */ + + function getX() + { + return $this->x; + } + + /** + * Gets the y coordinate (value) + * + * @access public + * @return integer y coordinate (value) + */ + + function getY() + { + return $this->y; + } + + function getColor() { return $this->color; } + function getShadowColor() { return $this->shadowColor; } + } +?> diff --git a/src/libchart/classes/Primitive.php b/src/libchart/classes/Primitive.php new file mode 100644 index 0000000..9e5a896 --- /dev/null +++ b/src/libchart/classes/Primitive.php @@ -0,0 +1,59 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Graphic primitives, extends GD with chart related primitives + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class Primitive + { + /** + * Creates a new primitive object + * + * @access public + * @param resource GD image resource + */ + + function Primitive($img) + { + $this->img = $img; + } + + /** + * Draws a straight line + * + * @access public + * @param integer line start (X) + * @param integer line start (Y) + * @param integer line end (X) + * @param integer line end (Y) + * @param Color line color + */ + + function line($x1, $y1, $x2, $y2, $color, $width = 1) + { + imagefilledpolygon($this->img, array($x1, $y1 - $width / 2, $x1, $y1 + $width / 2, $x2, $y2 + $width / 2, $x2, $y2 - $width / 2), 4, $color->getColor($this->img)); +// imageline($this->img, $x1, $y1, $x2, $y2, $color->getColor($this->img)); + } + } +?> diff --git a/src/libchart/classes/Text.php b/src/libchart/classes/Text.php new file mode 100644 index 0000000..7f7177c --- /dev/null +++ b/src/libchart/classes/Text.php @@ -0,0 +1,139 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Text drawing helper + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class Text + { + var $HORIZONTAL_LEFT_ALIGN = 1; // PHP4 doesn't support class constants + var $HORIZONTAL_CENTER_ALIGN = 2; + var $HORIZONTAL_RIGHT_ALIGN = 4; + var $VERTICAL_TOP_ALIGN = 8; + var $VERTICAL_CENTER_ALIGN = 16; + var $VERTICAL_BOTTOM_ALIGN = 32; + + /** + * Creates a new text drawing helper + * + * @access public + */ + + function Text() + { + // Free low-res fonts based on Bitstream Vera <http://dejavu.sourceforge.net/wiki/> + + $this->fontCondensed = dirname(__FILE__) . "/../fonts/DejaVuSansCondensed.ttf"; + $this->fontCondensedBold = dirname(__FILE__) . "/../fonts/DejaVuSansCondensed-Bold.ttf"; + } + + /** + * Print text + * + * @access public + * @param Image GD image + * @param integer text coordinate (x) + * @param integer text coordinate (y) + * @param Color text color + * @param string text value + * @param string font file name + * @param bitfield text alignment + */ + + function printText($img, $px, $py, $color, $text, $fontFileName, $align = 0) + { + if(!($align & $this->HORIZONTAL_CENTER_ALIGN) && !($align & $this->HORIZONTAL_RIGHT_ALIGN)) + $align |= $this->HORIZONTAL_LEFT_ALIGN; + + if(!($align & $this->VERTICAL_CENTER_ALIGN) && !($align & $this->VERTICAL_BOTTOM_ALIGN)) + $align |= $this->VERTICAL_TOP_ALIGN; + + $fontSize = 8; + $lineSpacing = 1; + + list($llx, $lly, $lrx, $lry, $urx, $ury, $ulx, $uly) = imageftbbox($fontSize, 0, $fontFileName, $text, array("linespacing" => $lineSpacing)); + + $textWidth = $lrx - $llx; + $textHeight = $lry - $ury; + + $angle = 0; + + if($align & $this->HORIZONTAL_CENTER_ALIGN) + $px -= $textWidth / 2; + + if($align & $this->HORIZONTAL_RIGHT_ALIGN) + $px -= $textWidth; + + if($align & $this->VERTICAL_CENTER_ALIGN) + $py += $textHeight / 2; + + if($align & $this->VERTICAL_TOP_ALIGN) + $py += $textHeight; + + imagettftext($img, $fontSize, $angle, $px, $py, $color->getColor($img), $fontFileName, $text); + } + + /** + * Print text centered horizontally on the image + * + * @access public + * @param Image GD image + * @param integer text coordinate (y) + * @param Color text color + * @param string text value + * @param string font file name + */ + + function printCentered($img, $py, $color, $text, $fontFileName) + { + $this->printText($img, imagesx($img) / 2, $py, $color, $text, $fontFileName, $this->HORIZONTAL_CENTER_ALIGN | $this->VERTICAL_CENTER_ALIGN); + } + + /** + * Print text in diagonal + * + * @access public + * @param Image GD image + * @param integer text coordinate (x) + * @param integer text coordinate (y) + * @param Color text color + * @param string text value + */ + + function printDiagonal($img, $px, $py, $color, $text) + { + $fontSize = 8; + $fontFileName = $this->fontCondensed; + + $lineSpacing = 1; + + list($lx, $ly, $rx, $ry) = imageftbbox($fontSize, 0, $fontFileName, $text, array("linespacing" => $lineSpacing)); + $textWidth = $rx - $lx; + + $angle = -45; + + imagettftext($img, $fontSize, $angle, $px, $py, $color->getColor($img), $fontFileName, $text); + } + } +?> diff --git a/src/libchart/classes/VerticalChart.php b/src/libchart/classes/VerticalChart.php new file mode 100644 index 0000000..cdb4117 --- /dev/null +++ b/src/libchart/classes/VerticalChart.php @@ -0,0 +1,169 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Vertical bar chart + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class VerticalChart extends BarChart + { + /** + * Creates a new vertical bar chart + * + * @access public + * @param integer width of the image + * @param integer height of the image + */ + + function VerticalChart($width = 600, $height = 250) + { + parent::BarChart($width, $height); + + $this->setLabelMarginLeft(50); + $this->setLabelMarginRight(30); + $this->setLabelMarginTop(40); + $this->setLabelMarginBottom(50); + } + + /** + * Print the axis + * + * @access private + */ + + function printAxis() + { + // Check if some points were defined + + if(!$this->sampleCount) + return; + + $minValue = $this->axis->getLowerBoundary(); + $maxValue = $this->axis->getUpperBoundary(); + $stepValue = $this->axis->getTics(); + + // Vertical axis + + for($value = $minValue; $value <= $maxValue; $value += $stepValue) + { + $y = $this->graphBRY - ($value - $minValue) * ($this->graphBRY - $this->graphTLY) / ($this->axis->displayDelta); + + imagerectangle($this->img, $this->graphTLX - 3, $y, $this->graphTLX - 2, $y + 1, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $this->graphTLX - 1, $y, $this->graphTLX, $y + 1, $this->axisColor2->getColor($this->img)); + + $this->text->printText($this->img, $this->graphTLX - 5, $y, $this->textColor, $value, $this->text->fontCondensed, $this->text->HORIZONTAL_RIGHT_ALIGN | $this->text->VERTICAL_CENTER_ALIGN); + } + + // Horizontal Axis + + $columnWidth = ($this->graphBRX - $this->graphTLX) / $this->sampleCount; + + reset($this->point); + + for($i = 0; $i <= $this->sampleCount; $i++) + { + $x = $this->graphTLX + $i * $columnWidth; + + imagerectangle($this->img, $x - 1, $this->graphBRY + 2, $x, $this->graphBRY + 3, $this->axisColor1->getColor($this->img)); + imagerectangle($this->img, $x - 1, $this->graphBRY, $x, $this->graphBRY + 1, $this->axisColor2->getColor($this->img)); + + if($i < $this->sampleCount) + { + $point = current($this->point); + next($this->point); + + $text = $point->getX(); + + $this->text->printDiagonal($this->img, $x + $columnWidth * 1 / 3, $this->graphBRY + 10, $this->textColor, $text); + } + } + } + + /** + * Print the bars + * + * @access private + */ + + function printBar() + { + // Check if some points were defined + + if(!$this->sampleCount) + return; + + reset($this->point); + + $minValue = $this->axis->getLowerBoundary(); + $maxValue = $this->axis->getUpperBoundary(); + $stepValue = $this->axis->getTics(); + + $columnWidth = ($this->graphBRX - $this->graphTLX) / $this->sampleCount; + + for($i = 0; $i < $this->sampleCount; $i++) + { + $x = $this->graphTLX + $i * ($this->graphBRX - $this->graphTLX) / $this->sampleCount; + + $point = current($this->point); + next($this->point); + + $value = $point->getY(); + + $ymin = $this->graphBRY - ($value - $minValue) * ($this->graphBRY - $this->graphTLY) / ($this->axis->displayDelta); + + $this->text->printText($this->img, $x + $columnWidth / 2, $ymin - 5, $this->textColor, $value, $this->text->fontCondensed, $this->text->HORIZONTAL_CENTER_ALIGN | $this->text->VERTICAL_BOTTOM_ALIGN); + + // Vertical bar + + $x1 = $x + $columnWidth * 1 / 5; + $x2 = $x + $columnWidth * 4 / 5; + + imagefilledrectangle($this->img, $x1, $ymin, $x2, $this->graphBRY - 1, $this->barColor2->getColor($this->img)); + imagefilledrectangle($this->img, $x1 + 1, $ymin + 1, $x2 - 4, $this->graphBRY - 1, $this->barColor1->getColor($this->img)); + } + } + + /** + * Render the chart image + * + * @access public + * @param string name of the file to render the image to (optional) + */ + + function render($fileName = null) + { + $this->computeBound(); + $this->computeLabelMargin(); + $this->createImage(); + $this->printLogo(); + $this->printTitle(); + $this->printAxis(); + $this->printBar(); + + if(isset($fileName)) + imagepng($this->img, $fileName); + else + imagepng($this->img); + } + } +?> diff --git a/src/libchart/fonts/DejaVuSansCondensed-Bold.ttf b/src/libchart/fonts/DejaVuSansCondensed-Bold.ttf Binary files differnew file mode 100644 index 0000000..6f4e42e --- /dev/null +++ b/src/libchart/fonts/DejaVuSansCondensed-Bold.ttf diff --git a/src/libchart/fonts/DejaVuSansCondensed.ttf b/src/libchart/fonts/DejaVuSansCondensed.ttf Binary files differnew file mode 100644 index 0000000..12af357 --- /dev/null +++ b/src/libchart/fonts/DejaVuSansCondensed.ttf diff --git a/src/libchart/images/PoweredBy.png b/src/libchart/images/PoweredBy.png Binary files differnew file mode 100644 index 0000000..6c5290c --- /dev/null +++ b/src/libchart/images/PoweredBy.png diff --git a/src/libchart/libchart.php b/src/libchart/libchart.php new file mode 100644 index 0000000..4f359cb --- /dev/null +++ b/src/libchart/libchart.php @@ -0,0 +1,33 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + require_once 'classes/Point.php'; + require_once 'classes/Axis.php'; + require_once 'classes/Color.php'; + require_once 'classes/Primitive.php'; + require_once 'classes/Text.php'; + require_once 'classes/Chart.php'; + require_once 'classes/PieChart.php'; + require_once 'classes/BarChart.php'; + require_once 'classes/LineChart.php'; + require_once 'classes/VerticalChart.php'; + require_once 'classes/HorizontalChart.php'; +?> |
