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+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Class for axis handling.
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: 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., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ *
+ * @category Images
+ * @package Image_Graph
+ * @subpackage Axis
+ * @author Jesper Veggerby <pear.nosey@veggerby.dk>
+ * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
+ * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
+ * @version CVS: $Id$
+ * @link http://pear.php.net/package/Image_Graph
+ */
+
+/**
+ * Include file Image/Graph/Plotarea/Element.php
+ */
+require_once 'Image/Graph/Plotarea/Element.php';
+
+/**
+ * Diplays a normal linear axis (either X- or Y-axis).
+ *
+ * @category Images
+ * @package Image_Graph
+ * @subpackage Axis
+ * @author Jesper Veggerby <pear.nosey@veggerby.dk>
+ * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
+ * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
+ * @version Release: @package_version@
+ * @link http://pear.php.net/package/Image_Graph
+ */
+ class Image_Graph_Axis extends Image_Graph_Plotarea_Element
+{
+
+ /**
+ * The type of the axis, possible values are:
+ * <ul>
+ * <li>IMAGE_GRAPH_AXIS_X / IMAGE_GRAPH_AXIS_HORIZONTAL
+ * <li>IMAGE_GRAPH_AXIS_Y / IMAGE_GRAPH_AXIS_VERTICAL /
+ * IMAGE_GRAPH_AXIS_Y_SECONDARY
+ * </ul>
+ * @var int
+ * @access private
+ */
+ var $_type;
+
+ /**
+ * The minimum value the axis displays
+ * @var int
+ * @access private
+ */
+ var $_minimum = false;
+
+ /**
+ * The minimum value the axis has been explicitly set by the user
+ * @var bool
+ * @access private
+ */
+ var $_minimumSet = false;
+
+ /**
+ * The maximum value the axis displays
+ * @var int
+ * @access private
+ */
+ var $_maximum = false;
+
+ /**
+ * The maximum value the axis has been explicitly set by the user
+ * @var bool
+ * @access private
+ */
+ var $_maximumSet = false;
+
+ /**
+ * The value span of the axis.
+ * This is primarily included for performance reasons
+ * @var double
+ * @access private
+ */
+ var $_axisSpan = false;
+
+ /**
+ * The value span of the axis.
+ * This is primarily included for performance reasons
+ * @var double
+ * @access private
+ */
+ var $_axisValueSpan = false;
+
+ /**
+ * The axis padding.
+ * The index 'low' specifies the padding for the low axis values (when not
+ * inverted), i.e. to the left on an x-axis and on the bottom of an y-axis,
+ * vice versa for 'high'.
+ *
+ * Axis padding does not make sense on a normal linear y-axis with a 'y-min'
+ * of 0 since this corresponds to displaying a small part of the y-axis
+ * below 0!
+ *
+ * @var array
+ * @access private
+ */
+ var $_axisPadding = array('low' => 0, 'high' => 0);
+
+ /**
+ * The number of "pixels" representing 1 unit on the axis
+ *
+ * This is primarily included for performance reasons
+ * @var double
+ * @access private
+ */
+ var $_delta = false;
+
+ /**
+ * Specify if the axis should label the minimum value
+ * @var bool
+ * @access private
+ */
+ var $_showLabelMinimum = true;
+
+ /**
+ * Specify if the axis should label 0 (zero)
+ * @var bool
+ * @access private
+ */
+ var $_showLabelZero = false;
+
+ /**
+ * Specify if the axis should label the maximum value
+ * @var bool
+ * @access private
+ */
+ var $_showLabelMaximum = true;
+
+ /**
+ * Show arrow heads at the 'end' of the axis, default: false
+ * @var bool
+ * @access private
+ */
+ var $_showArrow = false;
+
+ /**
+ * Intersection data of axis
+ * @var array
+ * @access private
+ */
+ var $_intersect = array('value' => 'default', 'axis' => 'default');
+
+ /**
+ * The fixed size of the axis (i.e. width for y-axis, height for x-axis)
+ * @var mixed
+ * @access private
+ */
+ var $_fixedSize = false;
+
+ /**
+ * The label options
+ *
+ * Should text be shows, preferences for ticks. The indexes start at level
+ * 1, which is chosen for readability
+ * @var array
+ * @access private
+ */
+ var $_labelOptions = array(
+ 1 => array(
+ 'interval' => 1,
+ 'type' => 'auto',
+ 'tick' => array(
+ 'start' => -2,
+ 'end' => 2,
+ 'color' => false // default color
+ ),
+ 'showtext' => true,
+ 'showoffset' => false,
+ 'font' => array(),
+ 'offset' => 0,
+ 'position' => 'outside',
+ )
+ );
+
+ /**
+ * The labels that are shown.
+ *
+ * This is used to make values show only once...
+ * @access private
+ */
+ var $_labelText = array();
+
+ /**
+ * A data preprocessor for formatting labels, fx showing dates as a standard
+ * date instead of Unix time stamp
+ * @var Image_Graph_DatePreProcessor
+ * @access private
+ * @see Image_Graph_DataPreProcessor
+ */
+ var $_dataPreProcessor = null;
+
+ /**
+ * Point marked in the axis
+ * @var array
+ * @access private
+ */
+ var $_marks = array();
+
+ /**
+ * Specifies whether the values should be 'pushed' by 0.5
+ * @var bool
+ * @access private
+ */
+ var $_pushValues = false;
+
+ /**
+ * The title of this axis
+ * @var string
+ * @access private
+ */
+ var $_title = '';
+
+ /**
+ * The font used for the title of this axis
+ * @var Image_Graph_Font
+ * @access private
+ */
+ var $_titleFont = false;
+
+ /**
+ * Invert the axis (i.e. if an y-axis normally displays minimum values at
+ * the bottom, they are not displayed at the top
+ * @var bool
+ * @access private
+ * @since 0.3.0dev3
+ */
+ var $_invert = false;
+
+ /**
+ * Transpose the axis (i.e. is a normal y-axis transposed, so thats it's not show
+ * vertically as normally expected, but instead horizontally)
+ * @var bool
+ * @access private
+ */
+ var $_transpose = false;
+
+ /**
+ * Image_Graph_Axis [Constructor].
+ * Normally a manual creation should not be necessary, axis are created
+ * automatically by the {@link Image_Graph_Plotarea} constructor unless
+ * explicitly defined otherwise
+ *
+ * @param int $type The type (direction) of the Axis, use IMAGE_GRAPH_AXIS_X
+ * for an X-axis (default, may be omitted) and IMAGE_GRAPH_AXIS_Y for Y-
+ * axis)
+ */
+ function Image_Graph_Axis($type = IMAGE_GRAPH_AXIS_X)
+ {
+ parent::Image_Graph_Element();
+ $this->_type = $type;
+ $this->_fillStyle = 'black';
+ }
+
+ /**
+ * Push the values by 0.5 (for bar and step chart)
+ *
+ * @access private
+ */
+ function _pushValues()
+ {
+ $this->_pushValues = true;
+ }
+
+ /**
+ * Sets the axis padding for a given position ('low' or 'high')
+ * @param string $where The position
+ * @param int $value The number of pixels to "pad"
+ * @access private
+ */
+ function _setAxisPadding($where, $value)
+ {
+ $this->_axisPadding[$where] = $value;
+ }
+
+ /**
+ * Gets the font of the title.
+ *
+ * If not font has been set, the parent font is propagated through it's
+ * children.
+ *
+ * @return array An associated array used for canvas
+ * @access private
+ */
+ function _getTitleFont()
+ {
+ if ($this->_titleFont === false) {
+ if ($this->_defaultFontOptions !== false) {
+ return $this->_defaultFontOptions;
+ } else {
+ return $this->_getFont();
+ }
+ } else {
+ if (is_object($this->_titleFont)) {
+ return $this->_titleFont->_getFont();
+ } elseif (is_array($this->_titleFont)) {
+ return $this->_getFont($this->_titleFont);
+ } elseif (is_int($this->_titleFont)) {
+ return $this->_getFont(array('size' => $this->_titleFont));
+ }
+ }
+ return array();
+ }
+
+ /**
+ * Shows a label for the the specified values.
+ *
+ * Allowed values are combinations of:
+ * <ul>
+ * <li>IMAGE_GRAPH_LABEL_MINIMUM
+ * <li>IMAGE_GRAPH_LABEL_ZERO
+ * <li>IMAGE_GRAPH_LABEL_MAXIMUM
+ * </ul>
+ * By default none of these are shows on the axis
+ *
+ * @param int $value The values to show labels for
+ */
+ function showLabel($value)
+ {
+ $this->_showLabelMinimum = ($value & IMAGE_GRAPH_LABEL_MINIMUM);
+ $this->_showLabelZero = ($value & IMAGE_GRAPH_LABEL_ZERO);
+ $this->_showLabelMaximum = ($value & IMAGE_GRAPH_LABEL_MAXIMUM);
+ }
+
+ /**
+ * Sets a data preprocessor for formatting the axis labels
+ *
+ * @param Image_Graph_DataPreprocessor $dataPreProcessor The data preprocessor
+ * @see Image_Graph_DataPreprocessor
+ */
+ function setDataPreProcessor(& $dataPreProcessor)
+ {
+ $this->_dataPreProcessor =& $dataPreProcessor;
+ }
+
+ /**
+ * Gets the minimum value the axis will show
+ *
+ * @return double The minumum value
+ * @access private
+ */
+ function _getMinimum()
+ {
+ return $this->_minimum;
+ }
+
+ /**
+ * Gets the maximum value the axis will show
+ *
+ * @return double The maximum value
+ * @access private
+ */
+ function _getMaximum()
+ {
+ return $this->_maximum;
+ }
+
+ /**
+ * Sets the minimum value the axis will show
+ *
+ * @param double $minimum The minumum value to use on the axis
+ * @access private
+ */
+ function _setMinimum($minimum)
+ {
+ if ($this->_minimum === false) {
+ $this->forceMinimum($minimum, false);
+ } else {
+ $this->forceMinimum(min($this->_minimum, $minimum), false);
+ }
+ }
+
+ /**
+ * Sets the maximum value the axis will show
+ *
+ * @param double $maximum The maximum value to use on the axis
+ * @access private
+ */
+ function _setMaximum($maximum)
+ {
+ if ($this->_maximum === false) {
+ $this->forceMaximum($maximum, false);
+ } else {
+ $this->forceMaximum(max($this->_maximum, $maximum), false);
+ }
+ }
+
+ /**
+ * Forces the minimum value of the axis
+ *
+ * @param double $minimum The minumum value to use on the axis
+ * @param bool $userEnforce This value should not be set, used internally
+ */
+ function forceMinimum($minimum, $userEnforce = true)
+ {
+ if (($userEnforce) || (!$this->_minimumSet)) {
+ $this->_minimum = $minimum;
+ $this->_minimumSet = $userEnforce;
+ }
+ $this->_calcLabelInterval();
+ }
+
+ /**
+ * Forces the maximum value of the axis
+ *
+ * @param double $maximum The maximum value to use on the axis
+ * @param bool $userEnforce This value should not be set, used internally
+ */
+ function forceMaximum($maximum, $userEnforce = true)
+ {
+ if (($userEnforce) || (!$this->_maximumSet)) {
+ $this->_maximum = $maximum;
+ $this->_maximumSet = $userEnforce;
+ }
+ $this->_calcLabelInterval();
+ }
+
+ /**
+ * Show an arrow head on the 'end' of the axis
+ */
+ function showArrow()
+ {
+ $this->_showArrow = true;
+ }
+
+ /**
+ * Do not show an arrow head on the 'end' of the axis (default)
+ */
+ function hideArrow()
+ {
+ $this->_showArrow = false;
+ }
+
+ /**
+ * Return the label distance.
+ *
+ * @param int $level The label level to return the distance of
+ * @return int The distance between 2 adjacent labels
+ * @access private
+ */
+ function _labelDistance($level = 1)
+ {
+ $l1 = $this->_getNextLabel(false, $level);
+ $l2 = $this->_getNextLabel($l1, $level);;
+ return abs($this->_point($l2) - $this->_point($l1));
+ }
+
+ /**
+ * Sets an interval for when labels are shown on the axis.
+ *
+ * By default 'auto' is used, forcing the axis to calculate a approximate
+ * best label interval to be used. Specify an array to use user-defined
+ * values for labels.
+ *
+ * @param mixed $labelInterval The interval with which labels are shown
+ * @param int $level The label level to set the interval on
+ */
+ function setLabelInterval($labelInterval = 'auto', $level = 1)
+ {
+ if (!isset($this->_labelOptions[$level])) {
+ $this->_labelOptions[$level] = array();
+ }
+
+ if ($labelInterval === 'auto') {
+ $this->_labelOptions[$level]['type'] = 'auto';
+ $this->_calcLabelInterval();
+ } else {
+ $this->_labelOptions[$level]['type'] = 'manual';
+ $this->_labelOptions[$level]['interval'] = $labelInterval;
+ }
+ }
+
+ /**
+ * Sets options for the label at a specific level.
+ *
+ * Possible options are:
+ *
+ * 'showtext' true or false whether label text should be shown or not
+ *
+ * 'showoffset' should the label be shown at an offset, i.e. should the
+ * label be shown at a position so that it does not overlap with prior
+ * levels. Only applies to multilevel labels with text
+ *
+ * 'font' The font options as an associated array
+ *
+ * 'position' The position at which the labels are written ('inside' or
+ * 'outside' the axis). NB! This relative position only applies to the
+ * default location of the axis, i.e. if an x-axis is inverted then
+ * 'outside' still refers to the "left" side of a normal y-axis (since this
+ * is normally 'outside') but the actual output will be labels on the
+ * "inside"!
+ *
+ * 'format' To format the label text according to a sprintf statement
+ *
+ * 'dateformat' To format the label as a date, fx. j. M Y = 29. Jun 2005
+ *
+ * @param string $option The label option name (see detailed description
+ * for possible values)
+ * @param mixed $value The value for the option
+ * @param int $level The label level to set the interval on
+ */
+ function setLabelOption($option, $value, $level = 1)
+ {
+ if (!isset($this->_labelOptions[$level])) {
+ $this->_labelOptions[$level] = array('type' => 'auto');
+ }
+
+ $this->_labelOptions[$level][$option] = $value;
+ }
+
+ /**
+ * Sets options for the label at a specific level.
+ *
+ * The possible options are specified in {@link Image_Graph_Axis::
+ * setLabelOption()}.
+ *
+ * @param array $options An assciated array with label options
+ * @param int $level The label level to set the interval on
+ */
+ function setLabelOptions($options, $level = 1)
+ {
+ if (is_array($options)) {
+ if (isset($this->_labelOptions[$level])) {
+ $this->_labelOptions[$level] = array_merge($this->_labelOptions[$level], $options);
+ } else {
+ $this->_labelOptions[$level] = $options;
+ }
+
+ }
+ }
+
+ /**
+ * Sets the title of this axis.
+ *
+ * This is used as an alternative (maybe better) method, than using layout's
+ * for axis-title generation.
+ *
+ * To use the current propagated font, but just set it vertically, simply
+ * pass 'vertical' as second parameter for vertical alignment down-to-up or
+ * 'vertical2' for up-to-down alignment.
+ *
+ * @param string $title The title of this axis
+ * @param Image_Graph_Font $font The font used for the title
+ * @since 0.3.0dev2
+ */
+ function setTitle($title, $font = false)
+ {
+ $this->_title = $title;
+ if ($font === 'vertical') {
+ $this->_titleFont = array('vertical' => true, 'angle' => 90);
+ } elseif ($font === 'vertical2') {
+ $this->_titleFont = array('vertical' => true, 'angle' => 270);
+ } else {
+ $this->_titleFont =& $font;
+ }
+ }
+
+ /**
+ * Sets a fixed "size" for the axis.
+ *
+ * If the axis is any type of y-axis the size relates to the width of the
+ * axis, if an x-axis is concerned the size is the height.
+ *
+ * @param int $size The fixed size of the axis
+ * @since 0.3.0dev5
+ */
+ function setFixedSize($size)
+ {
+ $this->_fixedSize = $size;
+ }
+
+ /**
+ * Preprocessor for values, ie for using logarithmic axis
+ *
+ * @param double $value The value to preprocess
+ * @return double The preprocessed value
+ * @access private
+ */
+ function _value($value)
+ {
+ return $value - $this->_getMinimum() + ($this->_pushValues ? 0.5 : 0);
+ }
+
+ /**
+ * Apply the dataset to the axis
+ *
+ * @param Image_Graph_Dataset $dataset The dataset
+ * @access private
+ */
+ function _applyDataset(&$dataset)
+ {
+ if ($this->_type == IMAGE_GRAPH_AXIS_X) {
+ $this->_setMinimum($dataset->minimumX());
+ $this->_setMaximum($dataset->maximumX());
+ } else {
+ $this->_setMinimum($dataset->minimumY());
+ $this->_setMaximum($dataset->maximumY());
+ }
+ }
+
+ /**
+ * Get the pixel position represented by a value on the canvas
+ *
+ * @param double $value the value to get the pixel-point for
+ * @return double The pixel position along the axis
+ * @access private
+ */
+ function _point($value)
+ {
+ if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
+ (($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
+ {
+ if ($this->_invert) {
+ return max($this->_left, $this->_right - $this->_axisPadding['high'] - $this->_delta * $this->_value($value));
+ } else {
+ return min($this->_right, $this->_left + $this->_axisPadding['low'] + $this->_delta * $this->_value($value));
+ }
+ } else {
+ if ($this->_invert) {
+ return min($this->_bottom, $this->_top + $this->_axisPadding['high'] + $this->_delta * $this->_value($value));
+ } else {
+ return max($this->_top, $this->_bottom - $this->_axisPadding['low'] - $this->_delta * $this->_value($value));
+ }
+ }
+ }
+
+
+ /**
+ * Get the axis intersection pixel position
+ *
+ * This is only to be called prior to output! I.e. between the user
+ * invokation of Image_Graph::done() and any actual output is performed.
+ * This is because it can change the axis range.
+ *
+ * @param double $value the intersection value to get the pixel-point for
+ * @return double The pixel position along the axis
+ * @access private
+ */
+ function _intersectPoint($value)
+ {
+
+ if (($value === 'min') || ($value < $this->_getMinimum())) {
+ if ($this->_type == IMAGE_GRAPH_AXIS_X) {
+ if ($this->_invert) {
+ return ($this->_transpose ? $this->_top : $this->_right);
+ } else {
+ return ($this->_transpose ? $this->_bottom : $this->_left);
+ }
+ } else {
+ if ($this->_invert) {
+ return ($this->_transpose ? $this->_right : $this->_top);
+ } else {
+ return ($this->_transpose ? $this->_left : $this->_bottom);
+ }
+ }
+ } elseif (($value === 'max') || ($value > $this->_getMaximum())) {
+ if ($this->_type == IMAGE_GRAPH_AXIS_X) {
+ if ($this->_invert) {
+ return ($this->_transpose ? $this->_bottom : $this->_left);
+ } else {
+ return ($this->_transpose ? $this->_top : $this->_right);
+ }
+ } else {
+ if ($this->_invert) {
+ return ($this->_transpose ? $this->_left : $this->_bottom);
+ } else {
+ return ($this->_transpose ? $this->_right : $this->_top);
+ }
+ }
+ }
+
+ return $this->_point($value);
+ }
+
+ /**
+ * Calculate the delta value (the number of pixels representing one unit
+ * on the axis)
+ *
+ * @return double The label interval
+ * @access private
+ */
+ function _calcDelta()
+ {
+ if ($this->_axisValueSpan == 0) {
+ $this->_delta = false;
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_X) {
+ $this->_delta = (($this->_transpose ? $this->height() : $this->width()) - ($this->_axisPadding['low'] + $this->_axisPadding['high'])) / ($this->_axisValueSpan + ($this->_pushValues ? 1 : 0));
+ } else {
+ $this->_delta = (($this->_transpose ? $this->width() : $this->height()) - ($this->_axisPadding['low'] + $this->_axisPadding['high'])) / ($this->_axisValueSpan + ($this->_pushValues ? 1 : 0));
+ }
+ }
+
+ /**
+ * Calculate the label interval
+ *
+ * If explicitly defined this will be calucated to an approximate best.
+ *
+ * @return double The label interval
+ * @access private
+ */
+ function _calcLabelInterval()
+ {
+ $min = $this->_getMinimum();
+ $max = $this->_getMaximum();
+
+ $this->_axisValueSpan = $this->_axisSpan = abs($max - $min);
+
+ if ((!empty($min)) && (!empty($max)) && ($min > $max)) {
+ $this->_labelOptions[1]['interval'] = 1;
+ return true;
+ }
+
+ $span = 0;
+ foreach($this->_labelOptions as $level => $labelOptions) {
+ if ((!isset($labelOptions['type'])) || ($labelOptions['type'] !== 'auto')) {
+ $span = false;
+ } elseif ($level == 1) {
+ $span = $this->_axisValueSpan;
+ } else {
+ $l1 = $this->_getNextLabel(false, $level - 1);
+ $l2 = $this->_getNextLabel($l1, $level - 1);
+ if ((!is_numeric($l1)) || (!is_numeric($l2))) {
+ $span == false;
+ } else {
+ $span = $l2 - $l1;
+ }
+ }
+
+ if ($span !== false) {
+ $interval = pow(10, floor(log10($span)));
+
+ if ($interval == 0) {
+ $interval = 1;
+ }
+
+ if ((($span) / $interval) < 3) {
+ $interval = $interval / 4;
+ } elseif ((($span) / $interval) < 5) {
+ $interval = $interval / 2;
+ } elseif ((($span) / $interval) > 10) {
+ $interval = $interval * 2;
+ }
+
+ if (($interval -floor($interval) == 0.5) && ($interval != 0.5)) {
+ $interval = floor($interval);
+ }
+
+ // just to be 100% sure that an interval of 0 is not returned some
+ // additional checks are performed
+ if ($interval == 0) {
+ $interval = ($span) / 5;
+ }
+
+ if ($interval == 0) {
+ $interval = 1;
+ }
+
+ $this->_labelOptions[$level]['interval'] = $interval;
+ }
+ }
+ }
+
+ /**
+ * Get next label point
+ *
+ * @param doubt $currentLabel The current label, if omitted or false, the
+ * first is returned
+ * @param int $level The label level to get the next label from
+ * @return double The next label point
+ * @access private
+ */
+ function _getNextLabel($currentLabel = false, $level = 1)
+ {
+ if (!isset($this->_labelOptions[$level])) {
+ return false;
+ }
+
+ if (is_array($this->_labelOptions[$level]['interval'])) {
+ if ($currentLabel === false) {
+ reset($this->_labelOptions[$level]['interval']);
+ }
+
+ if (list(, $label) = each($this->_labelOptions[$level]['interval'])) {
+ return $label;
+ } else {
+ return false;
+ }
+ } else {
+ $li = $this->_labelInterval($level);
+ if (($this->_axisSpan == 0) || ($this->_axisValueSpan == 0) ||
+ ($li == 0)
+ ) {
+ return false;
+ }
+
+ $labelInterval = $this->_axisSpan / ($this->_axisValueSpan / $li);
+
+ if ($labelInterval == 0) {
+ return false;
+ }
+
+ if ($currentLabel === false) {
+ $label = ((int) ($this->_getMinimum() / $labelInterval)) *
+ $labelInterval - $labelInterval;
+ while ($label < $this->_getMinimum()) {
+ $label += $labelInterval;
+ }
+ return $label;
+ } else {
+ if ($currentLabel + $labelInterval > $this->_getMaximum()) {
+ return false;
+ } else {
+ return $currentLabel + $labelInterval;
+ }
+ }
+ }
+ }
+
+ /**
+ * Get the interval with which labels are shown on the axis.
+ *
+ * If explicitly defined this will be calucated to an approximate best.
+ *
+ * @param int $level The label level to get the label interval for
+ * @return double The label interval
+ * @access private
+ */
+ function _labelInterval($level = 1)
+ {
+ if ((!isset($this->_labelOptions[$level])) ||
+ (!isset($this->_labelOptions[$level]['interval']))
+ ) {
+ return 1;
+ }
+
+ return (is_array($this->_labelOptions[$level]['interval'])
+ ? 1
+ : $this->_labelOptions[$level]['interval']
+ );
+ }
+
+ /**
+ * Get the size in pixels of the axis.
+ *
+ * For an x-axis this is the width of the axis including labels, and for an
+ * y-axis it is the corrresponding height
+ *
+ * @return int The size of the axis
+ * @access private
+ */
+ function _size()
+ {
+ if (!$this->_visible) {
+ return 0;
+ }
+
+ if ($this->_fixedSize !== false) {
+ return $this->_fixedSize;
+ }
+
+ krsort($this->_labelOptions);
+
+ $totalMaxSize = 0;
+
+ foreach ($this->_labelOptions as $level => $labelOptions) {
+ if ((isset($labelOptions['showoffset'])) && ($labelOptions['showoffset'] === true)) {
+ $this->_labelOptions[$level]['offset'] += $totalMaxSize;
+ } elseif (!isset($this->_labelOptions[$level]['offset'])) {
+ $this->_labelOptions[$level]['offset'] = 0;
+ }
+ if (
+ (isset($labelOptions['showtext'])) &&
+ ($labelOptions['showtext'] === true) &&
+ (
+ (!isset($labelOptions['position'])) ||
+ ($labelOptions['position'] == 'outside')
+ )
+ ) {
+ if (isset($labelOptions['font'])) {
+ $font = $this->_getFont($labelOptions['font']);
+ } else {
+ if ($this->_defaultFontOptions !== false) {
+ $font = $this->_defaultFontOptions;
+ } else {
+ $font = $this->_getFont();
+ }
+ }
+ $this->_canvas->setFont($font);
+
+ $value = false;
+ $maxSize = 0;
+ while (($value = $this->_getNextLabel($value, $level)) !== false) {
+ if ((abs($value) > 0.0001) && ($value > $this->_getMinimum()) &&
+ ($value < $this->_getMaximum()))
+ {
+ if (is_object($this->_dataPreProcessor)) {
+ $labelText = $this->_dataPreProcessor->_process($value);
+ } elseif (isset($labelOptions['format'])) {
+ $labelText = sprintf($labelOptions['format'], $value);
+ } elseif (isset($labelOptions['dateformat'])) {
+ $labelText = date($labelOptions['dateformat'], $value);
+ } else {
+ $labelText = $value;
+ }
+
+ if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
+ (($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
+ {
+ $maxSize = max($maxSize, $this->_canvas->textHeight($labelText));
+ } else {
+ $maxSize = max($maxSize, $this->_canvas->textWidth($labelText));
+ }
+ }
+ }
+ if ((isset($labelOptions['showoffset'])) && ($labelOptions['showoffset'] === true)) {
+ $totalMaxSize += $maxSize;
+ } else {
+ $totalMaxSize = max($totalMaxSize, $maxSize);
+ }
+ }
+ }
+
+ if ($this->_title) {
+ $this->_canvas->setFont($this->_getTitleFont());
+
+ if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
+ (($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
+ {
+ $totalMaxSize += $this->_canvas->textHeight($this->_title);
+ } else {
+ $totalMaxSize += $this->_canvas->textWidth($this->_title);
+ }
+ $totalMaxSize += 10;
+ }
+
+ return $totalMaxSize + 3;
+ }
+
+ /**
+ * Adds a mark to the axis at the specified value
+ *
+ * @param double $value The value
+ * @param double $value2 The second value (for a ranged mark)
+ */
+ function addMark($value, $value2 = false, $text = false)
+ {
+ if ($value2 === false) {
+ $this->_marks[] = $value;
+ } else {
+ $this->_marks[] = array($value, $value2);
+ }
+ }
+
+ /**
+ * Is the axis numeric or not?
+ *
+ * @return bool True if numeric, false if not
+ * @access private
+ */
+ function _isNumeric()
+ {
+ return true;
+ }
+
+ /**
+ * Set the major tick appearance.
+ *
+ * The positions are specified in pixels relative to the axis, meaning that
+ * a value of -1 for start will draw the major tick 'line' starting at 1
+ * pixel outside (negative) value the axis (i.e. below an x-axis and to the
+ * left of a normal y-axis).
+ *
+ * @param int $start The start position relative to the axis
+ * @param int $end The end position relative to the axis
+ * @param int $level The label level to set the tick options for
+ * @since 0.3.0dev2
+ */
+ function setTickOptions($start, $end, $level = 1)
+ {
+ if (!isset($this->_labelOptions[$level])) {
+ $this->_labelOptions[$level] = array();
+ }
+
+ $this->_labelOptions[$level]['tick'] = array(
+ 'start' => $start,
+ 'end' => $end
+ );
+ }
+
+ /**
+ * Invert the axis direction
+ *
+ * If the minimum values are normally displayed fx. at the bottom setting
+ * axis inversion to true, will cause the minimum values to be displayed at
+ * the top and maximum at the bottom.
+ *
+ * @param bool $invert True if the axis is to be inverted, false if not
+ * @since 0.3.0dev3
+ */
+ function setInverted($invert)
+ {
+ $this->_invert = $invert;
+ }
+
+ /**
+ * Set axis intersection.
+ *
+ * Sets the value at which the axis intersects other axis, fx. at which Y-
+ * value the x-axis intersects the y-axis (normally at 0).
+ *
+ * Possible values are 'default', 'min', 'max' or a number between axis min
+ * and max (the value will automatically be limited to this range).
+ *
+ * For a coordinate system with 2 y-axis, the x-axis can either intersect
+ * the primary or the secondary y-axis. To make the x-axis intersect the
+ * secondary y-axis at a given value pass IMAGE_GRAPH_AXIS_Y_SECONDARY as
+ * second parameter.
+ *
+ * @param mixed $intersection The value at which the axis intersect the
+ * 'other' axis
+ * @param mixed $axis The axis to intersect. Only applies to x-axis with
+ * both a primary and secondary y-axis available.
+ * @since 0.3.0dev2
+ */
+ function setAxisIntersection($intersection, $axis = 'default')
+ {
+ if ($axis == 'x') {
+ $axis = IMAGE_GRAPH_AXIS_X;
+ } elseif ($axis == 'y') {
+ $axis = IMAGE_GRAPH_AXIS_Y;
+ } elseif ($axis == 'ysec') {
+ $axis = IMAGE_GRAPH_AXIS_Y_SECONDARY;
+ }
+ $this->_intersect = array(
+ 'value' => $intersection,
+ 'axis' => $axis
+ );
+ }
+
+ /**
+ * Get axis intersection data.
+ *
+ * @return array An array with the axis intersection data.
+ * @since 0.3.0dev2
+ * @access private
+ */
+ function _getAxisIntersection()
+ {
+ $value = $this->_intersect['value'];
+ $axis = $this->_intersect['axis'];
+ if (($this->_type == IMAGE_GRAPH_AXIS_Y)
+ || ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY)
+ ) {
+ $axis = IMAGE_GRAPH_AXIS_X;
+ } elseif ($axis == 'default') {
+ $axis = IMAGE_GRAPH_AXIS_Y;
+ }
+
+ if ($value === 'default') {
+ switch ($this->_type) {
+ case IMAGE_GRAPH_AXIS_Y:
+ $value = 'min';
+ break;
+ case IMAGE_GRAPH_AXIS_Y_SECONDARY:
+ $value = 'max';
+ break;
+ case IMAGE_GRAPH_AXIS_X:
+ $value = 0;
+ break;
+ }
+ }
+
+ return array('value' => $value, 'axis' => $axis);
+ }
+
+ /**
+ * Resets the elements
+ *
+ * @access private
+ */
+ function _reset()
+ {
+ parent::_reset();
+ $this->_labelText = array();
+ }
+
+ /**
+ * Output an axis tick mark.
+ *
+ * @param int $value The value to output
+ * @param int $level The label level to draw the tick for
+ * @access private
+ */
+ function _drawTick($value, $level = 1)
+ {
+ if (isset($this->_labelOptions[$level])) {
+ $labelOptions = $this->_labelOptions[$level];
+ $labelPosition = $this->_point($value);
+
+ if (isset($labelOptions['offset'])) {
+ $offset = $labelOptions['offset'];
+ } else {
+ $offset = 0;
+ }
+
+ if ((isset($labelOptions['showtext'])) && ($labelOptions['showtext'] === true)) {
+ if (is_object($this->_dataPreProcessor)) {
+ $labelText = $this->_dataPreProcessor->_process($value);
+ } elseif (isset($labelOptions['format'])) {
+ $labelText = sprintf($labelOptions['format'], $value);
+ } elseif (isset($labelOptions['dateformat'])) {
+ $labelText = date($labelOptions['dateformat'], $value);
+ } else {
+ $labelText = $value;
+ }
+
+ if (!in_array($labelText, $this->_labelText)) {
+ $this->_labelText[] = $labelText;
+
+ if (isset($labelOptions['font'])) {
+ $font = $this->_getFont($labelOptions['font']);
+ } else {
+ if ($this->_defaultFontOptions !== false) {
+ $font = $this->_defaultFontOptions;
+ } else {
+ $font = $this->_getFont();
+ }
+ }
+ $this->_canvas->setFont($font);
+
+ if (
+ (isset($labelOptions['position'])) &&
+ ($labelOptions['position'] == 'inside')
+ ) {
+ $labelInside = true;
+ } else {
+ $labelInside = false;
+ }
+
+ if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
+ if ($this->_transpose) {
+ if ($labelInside) {
+ $this->write(
+ $labelPosition,
+ $this->_top - 3 - $offset,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
+ $font
+ );
+ } else {
+ $this->write(
+ $labelPosition,
+ $this->_top + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
+ $labelText,
+ IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
+ $font
+ );
+ }
+ }
+ else {
+ if ($labelInside) {
+ $this->write(
+ $this->_right + 3 + $offset,
+ $labelPosition,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
+ $font
+ );
+ } else {
+ $this->write(
+ $this->_right - 3 - $offset,
+ $labelPosition,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
+ $font
+ );
+ }
+ }
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
+ if ($this->_transpose) {
+ if ($labelInside) {
+ $this->write(
+ $labelPosition,
+ $this->_bottom + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
+ $labelText,
+ IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
+ $font
+ );
+ } else {
+ $this->write(
+ $labelPosition,
+ $this->_bottom - 3 - $offset,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
+ $font
+ );
+ }
+ }
+ else {
+ if ($labelInside) {
+ $this->write(
+ $this->_left - 3 - $offset,
+ $labelPosition,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
+ $font
+ );
+ } else {
+ $this->write(
+ $this->_left + 3 + $offset,
+ $labelPosition,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
+ $font
+ );
+ }
+ }
+ } else {
+ if ($this->_transpose) {
+ if ($labelInside) {
+ $this->write(
+ $this->_right + 3 + $offset,
+ $labelPosition,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
+ $font
+ );
+ } else {
+ $this->write(
+ $this->_right - 3 - $offset,
+ $labelPosition,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
+ $font
+ );
+ }
+ }
+ else {
+ if ($labelInside === true) {
+ $this->write(
+ $labelPosition,
+ $this->_top - 3 - $offset,
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_BOTTOM,
+ $font
+ );
+ } else {
+ $this->write(
+ $labelPosition,
+ $this->_top + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
+ $labelText,
+ IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_BOTTOM,
+ $font
+ );
+ }
+ }
+ }
+ }
+ }
+
+ $tickColor = false;
+ if (isset($this->_labelOptions[$level]['tick'])) {
+ if (isset($this->_labelOptions[$level]['tick']['start'])) {
+ $tickStart = $this->_labelOptions[$level]['tick']['start'];
+ } else {
+ $tickStart = false;
+ }
+
+ if (isset($this->_labelOptions[$level]['tick']['end'])) {
+ $tickEnd = $this->_labelOptions[$level]['tick']['end'];
+ } else {
+ $tickEnd = false;
+ }
+
+ if ((isset($this->_labelOptions[$level]['tick']['color'])) && ($this->_labelOptions[$level]['tick']['color'] !== false)) {
+ $tickColor = $this->_labelOptions[$level]['tick']['color'];
+ }
+ }
+
+ if ($tickStart === false) {
+ $tickStart = -2;
+ }
+
+ if ($tickEnd === false) {
+ $tickEnd = 2;
+ }
+
+ if ($tickColor !== false) {
+ $this->_canvas->setLineColor($tickColor);
+ }
+ else {
+ $this->_getLineStyle();
+ }
+
+ if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
+ if ($tickStart === 'auto') {
+ $tickStart = -$offset;
+ }
+ if ($this->_transpose) {
+ $this->_canvas->line(
+ array(
+ 'x0' => $labelPosition,
+ 'y0' => $this->_top + $tickStart,
+ 'x1' => $labelPosition,
+ 'y1' => $this->_top + $tickEnd
+ )
+ );
+ }
+ else {
+ $this->_canvas->line(
+ array(
+ 'x0' => $this->_right + $tickStart,
+ 'y0' => $labelPosition,
+ 'x1' => $this->_right + $tickEnd,
+ 'y1' => $labelPosition
+ )
+ );
+ }
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
+ if ($tickStart === 'auto') {
+ $tickStart = $offset;
+ }
+ if ($this->_transpose) {
+ $this->_canvas->line(
+ array(
+ 'x0' => $labelPosition,
+ 'y0' => $this->_bottom - $tickStart,
+ 'x1' => $labelPosition,
+ 'y1' => $this->_bottom - $tickEnd
+ )
+ );
+ }
+ else {
+ $this->_canvas->line(
+ array(
+ 'x0' => $this->_left - $tickStart,
+ 'y0' => $labelPosition,
+ 'x1' => $this->_left - $tickEnd,
+ 'y1' => $labelPosition
+ )
+ );
+ }
+ } else {
+ if ($tickStart === 'auto') {
+ $tickStart = $offset;
+ }
+ if ($this->_transpose) {
+ $this->_canvas->line(
+ array(
+ 'x0' => $this->_right + $tickStart,
+ 'y0' => $labelPosition,
+ 'x1' => $this->_right + $tickEnd,
+ 'y1' => $labelPosition
+ )
+ );
+ }
+ else {
+ $this->_canvas->line(
+ array(
+ 'x0' => $labelPosition,
+ 'y0' => $this->_top - $tickStart,
+ 'x1' => $labelPosition,
+ 'y1' => $this->_top - $tickEnd
+ )
+ );
+ }
+ }
+ }
+ }
+
+ /**
+ * Draws axis lines.
+ *
+ * @access private
+ */
+ function _drawAxisLines()
+ {
+ if ($this->_type == IMAGE_GRAPH_AXIS_X) {
+ $this->_getLineStyle();
+ $this->_getFillStyle();
+
+ if ($this->_transpose) {
+ $data = array(
+ 'x0' => $this->_right,
+ 'y0' => $this->_top,
+ 'x1' => $this->_right,
+ 'y1' => $this->_bottom
+ );
+ } else {
+ $data = array(
+ 'x0' => $this->_left,
+ 'y0' => $this->_top,
+ 'x1' => $this->_right,
+ 'y1' => $this->_top
+ );
+ }
+
+ if ($this->_showArrow) {
+ if ($this->_getMaximum() <= 0) {
+ $data['end0'] = 'arrow2';
+ $data['size0'] = 7;
+ }
+ else {
+ $data['end1'] = 'arrow2';
+ $data['size1'] = 7;
+ }
+ }
+
+ $this->_canvas->line($data);
+
+ if ($this->_title) {
+ if (!$this->_transpose) {
+ $y = $this->_bottom;
+ $x = $this->_left + $this->width() / 2;
+ $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_BOTTOM, $this->_getTitleFont());
+ }
+ else {
+ $y = $this->_top + $this->height() / 2;
+ $x = $this->_left;
+ $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
+ }
+ }
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
+ $this->_getLineStyle();
+ $this->_getFillStyle();
+
+ if ($this->_transpose) {
+ $data = array(
+ 'x0' => $this->_left,
+ 'y0' => $this->_bottom,
+ 'x1' => $this->_right,
+ 'y1' => $this->_bottom
+ );
+ } else {
+ $data = array(
+ 'x0' => $this->_left,
+ 'y0' => $this->_bottom,
+ 'x1' => $this->_left,
+ 'y1' => $this->_top
+ );
+ }
+ if ($this->_showArrow) {
+ if ($this->_getMaximum() <= 0) {
+ $data['end0'] = 'arrow2';
+ $data['size0'] = 7;
+ }
+ else {
+ $data['end1'] = 'arrow2';
+ $data['size1'] = 7;
+ }
+ }
+ $this->_canvas->line($data);
+
+ if ($this->_title) {
+ if ($this->_transpose) {
+ $y = $this->_top;
+ $x = $this->_left + $this->width() / 2;
+ $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_TOP, $this->_getTitleFont());
+ }
+ else {
+ $y = $this->_top + $this->height() / 2;
+ $x = $this->_right;
+ $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_RIGHT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
+ }
+ }
+ } else {
+ $this->_getLineStyle();
+ $this->_getFillStyle();
+
+ if ($this->_transpose) {
+ $data = array(
+ 'x0' => $this->_left,
+ 'y0' => $this->_top,
+ 'x1' => $this->_right,
+ 'y1' => $this->_top
+ );
+ } else {
+ $data = array(
+ 'x0' => $this->_right,
+ 'y0' => $this->_bottom,
+ 'x1' => $this->_right,
+ 'y1' => $this->_top
+ );
+ }
+ if ($this->_showArrow) {
+ if ($this->_getMaximum() <= 0) {
+ $data['end0'] = 'arrow2';
+ $data['size0'] = 7;
+ }
+ else {
+ $data['end1'] = 'arrow2';
+ $data['size1'] = 7;
+ }
+ }
+ $this->_canvas->line($data);
+
+ if ($this->_title) {
+ if ($this->_transpose) {
+ $y = $this->_bottom;
+ $x = $this->_left + $this->width() / 2;
+ $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_BOTTOM, $this->_getTitleFont());
+ }
+ else {
+ $y = $this->_top + $this->height() / 2;
+ $x = $this->_left;
+ $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
+ }
+ }
+ }
+ }
+
+ /**
+ * Causes the object to update all sub elements coordinates
+ *
+ * (Image_Graph_Common, does not itself have coordinates, this is basically
+ * an abstract method)
+ *
+ * @access private
+ */
+ function _updateCoords()
+ {
+ parent::_updateCoords();
+ $this->_calcDelta();
+ }
+
+ /**
+ * Output the axis
+ *
+ * @return bool Was the output 'good' (true) or 'bad' (false).
+ * @access private
+ */
+ function _done()
+ {
+ $this->_canvas->startGroup(get_class($this));
+
+ if (parent::_done() === false) {
+ return false;
+ }
+
+ $this->_drawAxisLines();
+
+ $this->_canvas->startGroup(get_class($this) . '_ticks');
+ ksort($this->_labelOptions);
+ foreach ($this->_labelOptions as $level => $labelOption) {
+ $value = false;
+ while (($value = $this->_getNextLabel($value, $level)) !== false) {
+ if ((((abs($value) > 0.0001) || ($this->_showLabelZero)) &&
+ (($value > $this->_getMinimum()) || ($this->_showLabelMinimum)) &&
+ (($value < $this->_getMaximum()) || ($this->_showLabelMaximum))) &&
+ ($value >= $this->_getMinimum()) && ($value <= $this->_getMaximum())
+ ) {
+ $this->_drawTick($value, $level);
+ }
+ }
+ }
+ $this->_canvas->endGroup();
+
+ $tickStart = -3;
+ $tickEnd = 2;
+
+ foreach ($this->_marks as $mark) {
+ if (is_array($mark)) {
+ if ($this->_type == IMAGE_GRAPH_AXIS_X) {
+ if ($this->_transpose) {
+ $x0 = $this->_right + $tickStart;
+ $y0 = $this->_point($mark[1]);
+ $x1 = $this->_right + $tickEnd;
+ $y1 = $this->_point($mark[0]);
+ }
+ else {
+ $x0 = $this->_point($mark[0]);
+ $y0 = $this->_top + $tickStart;
+ $x1 = $this->_point($mark[1]);
+ $y1 = $this->_top + $tickEnd;
+ }
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y) {
+ if ($this->_transpose) {
+ $x0 = $this->_point($mark[0]);
+ $y0 = $this->_top + $tickStart;
+ $x1 = $this->_point($mark[1]);
+ $y1 = $this->_top + $tickEnd;
+ }
+ else {
+ $x0 = $this->_right + $tickStart;
+ $y0 = $this->_point($mark[1]);
+ $x1 = $this->_right + $tickEnd;
+ $y1 = $this->_point($mark[0]);
+ }
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
+ if ($this->_transpose) {
+ $x0 = $this->_point($mark[0]);
+ $y0 = $this->_bottom + $tickStart;
+ $x1 = $this->_point($mark[1]);
+ $y1 = $this->_bottom + $tickEnd;
+ }
+ else {
+ $x0 = $this->_left + $tickStart;
+ $y0 = $this->_point($mark[1]);
+ $x1 = $this->_left + $tickEnd;
+ $y1 = $this->_point($mark[0]);
+ }
+ }
+ $this->_getFillStyle();
+ $this->_getLineStyle();
+ $this->_canvas->rectangle(array('x0' => $x0, 'y0' => $y0, 'x1' => $x1, 'y1' => $y1));
+ } else {
+ if ($this->_type == IMAGE_GRAPH_AXIS_X) {
+ if ($this->_transpose) {
+ $x0 = $this->_right + 5;
+ $y0 = $this->_point($mark);
+ $x1 = $this->_right + 15;
+ $y1 = $y0;
+ }
+ else {
+ $x0 = $this->_point($mark);
+ $y0 = $this->_top - 5;
+ $x1 = $x0;
+ $y1 = $this->_top - 15;
+ }
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y) {
+ if ($this->_transpose) {
+ $x0 = $this->_point($mark);
+ $y0 = $this->_top - 5;
+ $x1 = $x0;
+ $y1 = $this->_top - 15;
+ }
+ else {
+ $x0 = $this->_right + 5;
+ $y0 = $this->_point($mark);
+ $x1 = $this->_right + 15;
+ $y1 = $y0;
+ }
+ } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
+ if ($this->_transpose) {
+ $x0 = $this->_point($mark);
+ $y0 = $this->_bottom + 5;
+ $x1 = $x0;
+ $y1 = $this->_bottom + 15;
+ }
+ else {
+ $x0 = $this->_left - 5;
+ $y0 = $this->_point($mark);
+ $x1 = $this->_left - 15;
+ $y1 = $y0;
+ }
+ }
+ $this->_getFillStyle();
+ $this->_getLineStyle();
+ $this->_canvas->line(
+ array(
+ 'x0' => $x0,
+ 'y0' => $y0,
+ 'x1' => $x1,
+ 'y1' => $y1,
+ 'end0' => 'arrow2',
+ 'size0' => 5
+ )
+ );
+ }
+ }
+ $this->_canvas->endGroup();
+
+ return true;
+ }
+
+}
+
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-20 23:12:41 +0000