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<?php
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/*=======================================================================
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// File: JPGRAPH_PLOTLINE.PHP
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// Description: PlotLine extension for JpGraph
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// Created: 2009-03-24
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// Ver: $Id: jpgraph_plotline.php 1881 2009-10-01 10:28:12Z ljp $
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//
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// CLASS PlotLine
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// Data container class to hold properties for a static
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// line that is drawn directly in the plot area.
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// Useful to add static borders inside a plot to show for example set-values
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//
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// Copyright (c) Aditus Consulting. All rights reserved.
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//========================================================================
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*/
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class PlotLine {
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public $scaleposition, $direction=-1;
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protected $weight=1;
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protected $color = 'black';
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private $legend='',$hidelegend=false, $legendcsimtarget='', $legendcsimalt='',$legendcsimwintarget='';
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private $iLineStyle='solid';
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public $numpoints=0; // Needed since the framework expects this property
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function __construct($aDir=HORIZONTAL,$aPos=0,$aColor='black',$aWeight=1) {
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$this->direction = $aDir;
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$this->color=$aColor;
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$this->weight=$aWeight;
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$this->scaleposition=$aPos;
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}
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function SetLegend($aLegend,$aCSIM='',$aCSIMAlt='',$aCSIMWinTarget='') {
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$this->legend = $aLegend;
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$this->legendcsimtarget = $aCSIM;
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$this->legendcsimwintarget = $aCSIMWinTarget;
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$this->legendcsimalt = $aCSIMAlt;
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}
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function HideLegend($f=true) {
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$this->hidelegend = $f;
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}
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function SetPosition($aScalePosition) {
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$this->scaleposition=$aScalePosition;
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}
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function SetDirection($aDir) {
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$this->direction = $aDir;
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}
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function SetColor($aColor) {
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$this->color=$aColor;
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}
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function SetWeight($aWeight) {
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$this->weight=$aWeight;
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}
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function SetLineStyle($aStyle) {
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$this->iLineStyle = $aStyle;
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}
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//---------------
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// PRIVATE METHODS
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function DoLegend($graph) {
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if( !$this->hidelegend ) $this->Legend($graph);
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}
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// Framework function the chance for each plot class to set a legend
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function Legend($aGraph) {
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if( $this->legend != '' ) {
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$dummyPlotMark = new PlotMark();
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$lineStyle = 1;
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$aGraph->legend->Add($this->legend,$this->color,$dummyPlotMark,$lineStyle,
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$this->legendcsimtarget,$this->legendcsimalt,$this->legendcsimwintarget);
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}
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}
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function PreStrokeAdjust($aGraph) {
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// Nothing to do
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}
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// Called by framework to allow the object to draw
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// optional information in the margin area
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function StrokeMargin($aImg) {
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// Nothing to do
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}
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// Framework function to allow the object to adjust the scale
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function PrescaleSetup($aGraph) {
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// Nothing to do
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}
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function Min() {
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return array(null,null);
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}
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function Max() {
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return array(null,null);
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}
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function _Stroke($aImg,$aMinX,$aMinY,$aMaxX,$aMaxY,$aXPos,$aYPos) {
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$aImg->SetColor($this->color);
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$aImg->SetLineWeight($this->weight);
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$oldStyle = $aImg->SetLineStyle($this->iLineStyle);
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if( $this->direction == VERTICAL ) {
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$ymin_abs = $aMinY;
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$ymax_abs = $aMaxY;
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$xpos_abs = $aXPos;
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$aImg->StyleLine($xpos_abs, $ymin_abs, $xpos_abs, $ymax_abs);
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}
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elseif( $this->direction == HORIZONTAL ) {
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$xmin_abs = $aMinX;
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$xmax_abs = $aMaxX;
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$ypos_abs = $aYPos;
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$aImg->StyleLine($xmin_abs, $ypos_abs, $xmax_abs, $ypos_abs);
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}
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else {
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JpGraphError::RaiseL(25125);//(" Illegal direction for static line");
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}
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$aImg->SetLineStyle($oldStyle);
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}
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function Stroke($aImg,$aXScale,$aYScale) {
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$this->_Stroke($aImg,
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$aImg->left_margin,
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$aYScale->Translate($aYScale->GetMinVal()),
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$aImg->width-$aImg->right_margin,
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$aYScale->Translate($aYScale->GetMaxVal()),
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$aXScale->Translate($this->scaleposition),
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$aYScale->Translate($this->scaleposition)
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);
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}
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}
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?>
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