315 lines
13 KiB
PHP
315 lines
13 KiB
PHP
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<?php
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/*
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pSurface - class to draw surface charts
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Version : 2.1.4
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Made by : Jean-Damien POGOLOTTI
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Last Update : 19/01/2014
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This file can be distributed under the license you can find at :
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http://www.pchart.net/license
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You can find the whole class documentation on the pChart web site.
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*/
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define("UNKNOWN" , 0.123456789);
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define("IGNORED" , -1);
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define("LABEL_POSITION_LEFT" , 880001);
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define("LABEL_POSITION_RIGHT" , 880002);
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define("LABEL_POSITION_TOP" , 880003);
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define("LABEL_POSITION_BOTTOM" , 880004);
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/* pStock class definition */
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class pSurface
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{
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var $pChartObject;
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var $GridSizeX;
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var $GridSizeY;
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var $Points;
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/* Class creator */
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function pSurface($pChartObject)
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{
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$this->pChartObject = $pChartObject;
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$this->GridSize = 10;
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$this->Points = "";
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}
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/* Define the grid size and initialise the 2D matrix */
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function setGrid($XSize=10,$YSize=10)
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{
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for($X=0; $X<=$XSize; $X++) { for($Y=0; $Y<=$YSize; $Y++) { $this->Points[$X][$Y]=UNKNOWN; } }
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$this->GridSizeX = $XSize;
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$this->GridSizeY = $YSize;
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}
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/* Add a point on the grid */
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function addPoint($X,$Y,$Value,$Force=TRUE)
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{
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if ( $X < 0 || $X >$this->GridSizeX ) { return(0); }
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if ( $Y < 0 || $Y >$this->GridSizeY ) { return(0); }
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if ( $this->Points[$X][$Y] == UNKNOWN || $Force )
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$this->Points[$X][$Y] = $Value;
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elseif ( $this->Points[$X][$Y] == UNKNOWN )
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$this->Points[$X][$Y] = $Value;
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else
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$this->Points[$X][$Y] = ($this->Points[$X][$Y] + $Value)/2;
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}
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/* Write the X labels */
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function writeXLabels($Format="")
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{
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$R = isset($Format["R"]) ? $Format["R"] : $this->pChartObject->FontColorR;
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$G = isset($Format["G"]) ? $Format["G"] : $this->pChartObject->FontColorG;
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$B = isset($Format["B"]) ? $Format["B"] : $this->pChartObject->FontColorB;
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$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : $this->pChartObject->FontColorA;
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$Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
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$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 5;
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$Position = isset($Format["Position"]) ? $Format["Position"] : LABEL_POSITION_TOP;
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$Labels = isset($Format["Labels"]) ? $Format["Labels"] : NULL;
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$CountOffset = isset($Format["CountOffset"]) ? $Format["CountOffset"] : 0;
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if ( $Labels != NULL && !is_array($Labels) ) { $Label = $Labels; $Labels = ""; $Labels[] = $Label; }
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$X0 = $this->pChartObject->GraphAreaX1;
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$XSize = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1) / ($this->GridSizeX+1);
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$Settings = array("Angle"=>$Angle,"R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
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if ( $Position == LABEL_POSITION_TOP )
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{
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$YPos = $this->pChartObject->GraphAreaY1 - $Padding;
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if ($Angle == 0 ) { $Settings["Align"] = TEXT_ALIGN_BOTTOMMIDDLE; }
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if ($Angle != 0 ) { $Settings["Align"] = TEXT_ALIGN_MIDDLELEFT; }
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}
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elseif ( $Position == LABEL_POSITION_BOTTOM )
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{
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$YPos = $this->pChartObject->GraphAreaY2 + $Padding;
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if ($Angle == 0 ) { $Settings["Align"] = TEXT_ALIGN_TOPMIDDLE; }
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if ($Angle != 0 ) { $Settings["Align"] = TEXT_ALIGN_MIDDLERIGHT; }
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}
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else
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return(-1);
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for($X=0;$X<=$this->GridSizeX;$X++)
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{
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$XPos = floor($X0+$X*$XSize + $XSize/2);
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if( $Labels == NULL || !isset($Labels[$X]) )
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$Value = $X+$CountOffset;
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else
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$Value = $Labels[$X];
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$this->pChartObject->drawText($XPos,$YPos,$Value,$Settings);
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}
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}
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/* Write the Y labels */
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function writeYLabels($Format="")
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{
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$R = isset($Format["R"]) ? $Format["R"] : $this->pChartObject->FontColorR;
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$G = isset($Format["G"]) ? $Format["G"] : $this->pChartObject->FontColorG;
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$B = isset($Format["B"]) ? $Format["B"] : $this->pChartObject->FontColorB;
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$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : $this->pChartObject->FontColorA;
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$Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
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$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 5;
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$Position = isset($Format["Position"]) ? $Format["Position"] : LABEL_POSITION_LEFT;
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$Labels = isset($Format["Labels"]) ? $Format["Labels"] : NULL;
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$CountOffset = isset($Format["CountOffset"]) ? $Format["CountOffset"] : 0;
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if ( $Labels != NULL && !is_array($Labels) ) { $Label = $Labels; $Labels = ""; $Labels[] = $Label; }
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$Y0 = $this->pChartObject->GraphAreaY1;
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$YSize = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1) / ($this->GridSizeY+1);
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$Settings = array("Angle"=>$Angle,"R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
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if ( $Position == LABEL_POSITION_LEFT )
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{ $XPos = $this->pChartObject->GraphAreaX1 - $Padding; $Settings["Align"] = TEXT_ALIGN_MIDDLERIGHT; }
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elseif ( $Position == LABEL_POSITION_RIGHT )
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{ $XPos = $this->pChartObject->GraphAreaX2 + $Padding; $Settings["Align"] = TEXT_ALIGN_MIDDLELEFT; }
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else
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return(-1);
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for($Y=0;$Y<=$this->GridSizeY;$Y++)
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{
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$YPos = floor($Y0+$Y*$YSize + $YSize/2);
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if( $Labels == NULL || !isset($Labels[$Y]) )
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$Value = $Y+$CountOffset;
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else
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$Value = $Labels[$Y];
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$this->pChartObject->drawText($XPos,$YPos,$Value,$Settings);
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}
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}
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/* Draw the area arround the specified Threshold */
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function drawContour($Threshold,$Format="")
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{
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$R = isset($Format["R"]) ? $Format["R"] : 0;
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$G = isset($Format["G"]) ? $Format["G"] : 0;
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$B = isset($Format["B"]) ? $Format["B"] : 0;
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$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
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$Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : 3;
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$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 0;
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$X0 = $this->pChartObject->GraphAreaX1;
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$Y0 = $this->pChartObject->GraphAreaY1;
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$XSize = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1) / ($this->GridSizeX+1);
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$YSize = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1) / ($this->GridSizeY+1);
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$Color = array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha,"Ticks"=>$Ticks);
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for($X=0;$X<=$this->GridSizeX;$X++)
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{
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for($Y=0;$Y<=$this->GridSizeY;$Y++)
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{
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$Value = $this->Points[$X][$Y];
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if ( $Value != UNKNOWN && $Value != IGNORED && $Value >= $Threshold)
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{
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$X1 = floor($X0+$X*$XSize)+$Padding;
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$Y1 = floor($Y0+$Y*$YSize)+$Padding;
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$X2 = floor($X0+$X*$XSize+$XSize);
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$Y2 = floor($Y0+$Y*$YSize+$YSize);
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if ( $X > 0 && $this->Points[$X-1][$Y] != UNKNOWN && $this->Points[$X-1][$Y] != IGNORED && $this->Points[$X-1][$Y] < $Threshold)
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$this->pChartObject->drawLine($X1,$Y1,$X1,$Y2,$Color);
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if ( $Y > 0 && $this->Points[$X][$Y-1] != UNKNOWN && $this->Points[$X][$Y-1] != IGNORED && $this->Points[$X][$Y-1] < $Threshold)
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$this->pChartObject->drawLine($X1,$Y1,$X2,$Y1,$Color);
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if ( $X < $this->GridSizeX && $this->Points[$X+1][$Y] != UNKNOWN && $this->Points[$X+1][$Y] != IGNORED && $this->Points[$X+1][$Y] < $Threshold)
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$this->pChartObject->drawLine($X2,$Y1,$X2,$Y2,$Color);
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if ( $Y < $this->GridSizeY && $this->Points[$X][$Y+1] != UNKNOWN && $this->Points[$X][$Y+1] != IGNORED && $this->Points[$X][$Y+1] < $Threshold)
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$this->pChartObject->drawLine($X1,$Y2,$X2,$Y2,$Color);
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}
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}
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}
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}
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/* Draw the surface chart */
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function drawSurface($Format="")
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{
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$Palette = isset($Format["Palette"]) ? $Format["Palette"] : NULL;
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$ShadeR1 = isset($Format["ShadeR1"]) ? $Format["ShadeR1"] : 77;
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$ShadeG1 = isset($Format["ShadeG1"]) ? $Format["ShadeG1"] : 205;
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$ShadeB1 = isset($Format["ShadeB1"]) ? $Format["ShadeB1"] : 21;
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$ShadeA1 = isset($Format["ShadeA1"]) ? $Format["ShadeA1"] : 40;
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$ShadeR2 = isset($Format["ShadeR2"]) ? $Format["ShadeR2"] : 227;
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$ShadeG2 = isset($Format["ShadeG2"]) ? $Format["ShadeG2"] : 135;
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$ShadeB2 = isset($Format["ShadeB2"]) ? $Format["ShadeB2"] : 61;
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$ShadeA2 = isset($Format["ShadeA2"]) ? $Format["ShadeA2"] : 100;
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$Border = isset($Format["Border"]) ? $Format["Border"] : FALSE;
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$BorderR = isset($Format["BorderR"]) ? $Format["BorderR"] : 0;
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$BorderG = isset($Format["BorderG"]) ? $Format["BorderG"] : 0;
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$BorderB = isset($Format["BorderB"]) ? $Format["BorderB"] : 0;
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$Surrounding = isset($Format["Surrounding"]) ? $Format["Surrounding"] : -1;
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$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 1;
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$X0 = $this->pChartObject->GraphAreaX1;
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$Y0 = $this->pChartObject->GraphAreaY1;
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$XSize = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1) / ($this->GridSizeX+1);
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$YSize = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1) / ($this->GridSizeY+1);
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for($X=0;$X<=$this->GridSizeX;$X++)
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{
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for($Y=0;$Y<=$this->GridSizeY;$Y++)
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{
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$Value = $this->Points[$X][$Y];
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if ( $Value != UNKNOWN && $Value != IGNORED )
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{
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$X1 = floor($X0+$X*$XSize)+$Padding;
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$Y1 = floor($Y0+$Y*$YSize)+$Padding;
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$X2 = floor($X0+$X*$XSize+$XSize);
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$Y2 = floor($Y0+$Y*$YSize+$YSize);
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if ( $Palette != NULL )
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{
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if ( isset($Palette[$Value]) && isset($Palette[$Value]["R"]) ) { $R = $Palette[$Value]["R"]; } else { $R = 0; }
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if ( isset($Palette[$Value]) && isset($Palette[$Value]["G"]) ) { $G = $Palette[$Value]["G"]; } else { $G = 0; }
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if ( isset($Palette[$Value]) && isset($Palette[$Value]["B"]) ) { $B = $Palette[$Value]["B"]; } else { $B = 0; }
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if ( isset($Palette[$Value]) && isset($Palette[$Value]["Alpha"]) ) { $Alpha = $Palette[$Value]["Alpha"]; } else { $Alpha = 1000; }
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}
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else
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{
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$R = (($ShadeR2-$ShadeR1)/100)*$Value + $ShadeR1;
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$G = (($ShadeG2-$ShadeG1)/100)*$Value + $ShadeG1;
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$B = (($ShadeB2-$ShadeB1)/100)*$Value + $ShadeB1;
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$Alpha = (($ShadeA2-$ShadeA1)/100)*$Value + $ShadeA1;
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}
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$Settings = array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
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if ( $Border ) { $Settings["BorderR"] = $BorderR; $Settings["BorderG"] = $BorderG; $Settings["BorderB"] = $BorderB; }
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if ( $Surrounding != -1 ) { $Settings["BorderR"] = $R+$Surrounding; $Settings["BorderG"] = $G+$Surrounding; $Settings["BorderB"] = $B+$Surrounding; }
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$this->pChartObject->drawFilledRectangle($X1,$Y1,$X2-1,$Y2-1,$Settings);
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}
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}
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}
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}
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/* Compute the missing points */
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function computeMissing()
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{
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$Missing = "";
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for($X=0;$X<=$this->GridSizeX;$X++)
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{
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for($Y=0;$Y<=$this->GridSizeY;$Y++)
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{
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if ( $this->Points[$X][$Y] == UNKNOWN )
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$Missing[] = $X.",".$Y;
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}
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}
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shuffle($Missing);
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foreach($Missing as $Key => $Pos)
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{
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$Pos = preg_split("/,/",$Pos);
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$X = $Pos[0];
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$Y = $Pos[1];
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if ( $this->Points[$X][$Y] == UNKNOWN )
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{
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$NearestNeighbor = $this->getNearestNeighbor($X,$Y);
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$Value = 0; $Points = 0;
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for($Xi=$X-$NearestNeighbor;$Xi<=$X+$NearestNeighbor;$Xi++)
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{
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for($Yi=$Y-$NearestNeighbor;$Yi<=$Y+$NearestNeighbor;$Yi++)
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{
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if ($Xi >=0 && $Yi >= 0 && $Xi <= $this->GridSizeX && $Yi <= $this->GridSizeY && $this->Points[$Xi][$Yi] != UNKNOWN && $this->Points[$Xi][$Yi] != IGNORED)
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{
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$Value = $Value + $this->Points[$Xi][$Yi]; $Points++;
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}
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}
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}
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if ( $Points != 0 ) { $this->Points[$X][$Y] = $Value / $Points; }
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}
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}
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}
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/* Return the nearest Neighbor distance of a point */
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function getNearestNeighbor($Xp,$Yp)
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{
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$Nearest = UNKNOWN;
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for($X=0;$X<=$this->GridSizeX;$X++)
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{
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for($Y=0;$Y<=$this->GridSizeY;$Y++)
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{
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if ( $this->Points[$X][$Y] != UNKNOWN && $this->Points[$X][$Y] != IGNORED )
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{
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$DistanceX = max($Xp,$X)-min($Xp,$X);
|
||
|
|
$DistanceY = max($Yp,$Y)-min($Yp,$Y);
|
||
|
|
$Distance = max($DistanceX,$DistanceY);
|
||
|
|
if ( $Distance < $Nearest || $Nearest == UNKNOWN ) { $Nearest = $Distance; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return($Nearest);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
?>
|