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SemmelstatzR/trunk/includes/pChart/class/pSurface.class.php
oldperl bdf227442d edit: phpdoc stuff 
add: pChart lib - no more usage of google api. There has to be the wp-content/cache writable for images
add: test-folder for later use
new: class agents, new isBot-functionality within this class, old function is deprecated, uses an ini-file with botnames
2011-11-14 14:21:22 +00:00

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<?php
/*
pSurface - class to draw surface charts
Version : 2.1.3
Made by : Jean-Damien POGOLOTTI
Last Update : 09/09/11
This file can be distributed under the license you can find at :
http://www.pchart.net/license
You can find the whole class documentation on the pChart web site.
*/
define("UNKNOWN" , 0.123456789);
define("IGNORED" , -1);
define("LABEL_POSITION_LEFT" , 880001);
define("LABEL_POSITION_RIGHT" , 880002);
define("LABEL_POSITION_TOP" , 880003);
define("LABEL_POSITION_BOTTOM" , 880004);
/* pStock class definition */
class pSurface
{
var $pChartObject;
var $GridSizeX;
var $GridSizeY;
var $Points;
/* Class creator */
function pSurface($pChartObject)
{
$this->pChartObject = $pChartObject;
$this->GridSize = 10;
$this->Points = "";
}
/* Define the grid size and initialise the 2D matrix */
function setGrid($XSize=10,$YSize=10)
{
for($X=0; $X<=$XSize; $X++) { for($Y=0; $Y<=$YSize; $Y++) { $this->Points[$X][$Y]=UNKNOWN; } }
$this->GridSizeX = $XSize;
$this->GridSizeY = $YSize;
}
/* Add a point on the grid */
function addPoint($X,$Y,$Value,$Force=TRUE)
{
if ( $X < 0 || $X >$this->GridSizeX ) { return(0); }
if ( $Y < 0 || $Y >$this->GridSizeY ) { return(0); }
if ( $this->Points[$X][$Y] == UNKNOWN || $Force )
$this->Points[$X][$Y] = $Value;
elseif ( $this->Points[$X][$Y] == UNKNOWN )
$this->Points[$X][$Y] = $Value;
else
$this->Points[$X][$Y] = ($this->Points[$X][$Y] + $Value)/2;
}
/* Write the X labels */
function writeXLabels($Format="")
{
$R = isset($Format["R"]) ? $Format["R"] : $this->pChartObject->FontColorR;
$G = isset($Format["G"]) ? $Format["G"] : $this->pChartObject->FontColorG;
$B = isset($Format["B"]) ? $Format["B"] : $this->pChartObject->FontColorB;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : $this->pChartObject->FontColorA;
$Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 5;
$Position = isset($Format["Position"]) ? $Format["Position"] : LABEL_POSITION_TOP;
$Labels = isset($Format["Labels"]) ? $Format["Labels"] : NULL;
$CountOffset = isset($Format["CountOffset"]) ? $Format["CountOffset"] : 0;
if ( $Labels != NULL && !is_array($Labels) ) { $Label = $Labels; $Labels = ""; $Labels[] = $Label; }
$X0 = $this->pChartObject->GraphAreaX1;
$XSize = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1) / ($this->GridSizeX+1);
$Settings = array("Angle"=>$Angle,"R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
if ( $Position == LABEL_POSITION_TOP )
{
$YPos = $this->pChartObject->GraphAreaY1 - $Padding;
if ($Angle == 0 ) { $Settings["Align"] = TEXT_ALIGN_BOTTOMMIDDLE; }
if ($Angle != 0 ) { $Settings["Align"] = TEXT_ALIGN_MIDDLELEFT; }
}
elseif ( $Position == LABEL_POSITION_BOTTOM )
{
$YPos = $this->pChartObject->GraphAreaY2 + $Padding;
if ($Angle == 0 ) { $Settings["Align"] = TEXT_ALIGN_TOPMIDDLE; }
if ($Angle != 0 ) { $Settings["Align"] = TEXT_ALIGN_MIDDLERIGHT; }
}
else
return(-1);
for($X=0;$X<=$this->GridSizeX;$X++)
{
$XPos = floor($X0+$X*$XSize + $XSize/2);
if( $Labels == NULL || !isset($Labels[$X]) )
$Value = $X+$CountOffset;
else
$Value = $Labels[$X];
$this->pChartObject->drawText($XPos,$YPos,$Value,$Settings);
}
}
/* Write the Y labels */
function writeYLabels($Format="")
{
$R = isset($Format["R"]) ? $Format["R"] : $this->pChartObject->FontColorR;
$G = isset($Format["G"]) ? $Format["G"] : $this->pChartObject->FontColorG;
$B = isset($Format["B"]) ? $Format["B"] : $this->pChartObject->FontColorB;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : $this->pChartObject->FontColorA;
$Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 5;
$Position = isset($Format["Position"]) ? $Format["Position"] : LABEL_POSITION_LEFT;
$Labels = isset($Format["Labels"]) ? $Format["Labels"] : NULL;
$CountOffset = isset($Format["CountOffset"]) ? $Format["CountOffset"] : 0;
if ( $Labels != NULL && !is_array($Labels) ) { $Label = $Labels; $Labels = ""; $Labels[] = $Label; }
$Y0 = $this->pChartObject->GraphAreaY1;
$YSize = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1) / ($this->GridSizeY+1);
$Settings = array("Angle"=>$Angle,"R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
if ( $Position == LABEL_POSITION_LEFT )
{ $XPos = $this->pChartObject->GraphAreaX1 - $Padding; $Settings["Align"] = TEXT_ALIGN_MIDDLERIGHT; }
elseif ( $Position == LABEL_POSITION_RIGHT )
{ $XPos = $this->pChartObject->GraphAreaX2 + $Padding; $Settings["Align"] = TEXT_ALIGN_MIDDLELEFT; }
else
return(-1);
for($Y=0;$Y<=$this->GridSizeY;$Y++)
{
$YPos = floor($Y0+$Y*$YSize + $YSize/2);
if( $Labels == NULL || !isset($Labels[$Y]) )
$Value = $Y+$CountOffset;
else
$Value = $Labels[$Y];
$this->pChartObject->drawText($XPos,$YPos,$Value,$Settings);
}
}
/* Draw the area arround the specified Threshold */
function drawContour($Threshold,$Format="")
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : 3;
$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 0;
$X0 = $this->pChartObject->GraphAreaX1;
$Y0 = $this->pChartObject->GraphAreaY1;
$XSize = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1) / ($this->GridSizeX+1);
$YSize = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1) / ($this->GridSizeY+1);
$Color = array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha,"Ticks"=>$Ticks);
for($X=0;$X<=$this->GridSizeX;$X++)
{
for($Y=0;$Y<=$this->GridSizeY;$Y++)
{
$Value = $this->Points[$X][$Y];
if ( $Value != UNKNOWN && $Value != IGNORED && $Value >= $Threshold)
{
$X1 = floor($X0+$X*$XSize)+$Padding;
$Y1 = floor($Y0+$Y*$YSize)+$Padding;
$X2 = floor($X0+$X*$XSize+$XSize);
$Y2 = floor($Y0+$Y*$YSize+$YSize);
if ( $X > 0 && $this->Points[$X-1][$Y] != UNKNOWN && $this->Points[$X-1][$Y] != IGNORED && $this->Points[$X-1][$Y] < $Threshold)
$this->pChartObject->drawLine($X1,$Y1,$X1,$Y2,$Color);
if ( $Y > 0 && $this->Points[$X][$Y-1] != UNKNOWN && $this->Points[$X][$Y-1] != IGNORED && $this->Points[$X][$Y-1] < $Threshold)
$this->pChartObject->drawLine($X1,$Y1,$X2,$Y1,$Color);
if ( $X < $this->GridSizeX && $this->Points[$X+1][$Y] != UNKNOWN && $this->Points[$X+1][$Y] != IGNORED && $this->Points[$X+1][$Y] < $Threshold)
$this->pChartObject->drawLine($X2,$Y1,$X2,$Y2,$Color);
if ( $Y < $this->GridSizeY && $this->Points[$X][$Y+1] != UNKNOWN && $this->Points[$X][$Y+1] != IGNORED && $this->Points[$X][$Y+1] < $Threshold)
$this->pChartObject->drawLine($X1,$Y2,$X2,$Y2,$Color);
}
}
}
}
/* Draw the surface chart */
function drawSurface($Format="")
{
$Palette = isset($Format["Palette"]) ? $Format["Palette"] : NULL;
$ShadeR1 = isset($Format["ShadeR1"]) ? $Format["ShadeR1"] : 77;
$ShadeG1 = isset($Format["ShadeG1"]) ? $Format["ShadeG1"] : 205;
$ShadeB1 = isset($Format["ShadeB1"]) ? $Format["ShadeB1"] : 21;
$ShadeA1 = isset($Format["ShadeA1"]) ? $Format["ShadeA1"] : 40;
$ShadeR2 = isset($Format["ShadeR2"]) ? $Format["ShadeR2"] : 227;
$ShadeG2 = isset($Format["ShadeG2"]) ? $Format["ShadeG2"] : 135;
$ShadeB2 = isset($Format["ShadeB2"]) ? $Format["ShadeB2"] : 61;
$ShadeA2 = isset($Format["ShadeA2"]) ? $Format["ShadeA2"] : 100;
$Border = isset($Format["Border"]) ? $Format["Border"] : FALSE;
$BorderR = isset($Format["BorderR"]) ? $Format["BorderR"] : 0;
$BorderG = isset($Format["BorderG"]) ? $Format["BorderG"] : 0;
$BorderB = isset($Format["BorderB"]) ? $Format["BorderB"] : 0;
$Surrounding = isset($Format["Surrounding"]) ? $Format["Surrounding"] : -1;
$Padding = isset($Format["Padding"]) ? $Format["Padding"] : 1;
$X0 = $this->pChartObject->GraphAreaX1;
$Y0 = $this->pChartObject->GraphAreaY1;
$XSize = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1) / ($this->GridSizeX+1);
$YSize = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1) / ($this->GridSizeY+1);
for($X=0;$X<=$this->GridSizeX;$X++)
{
for($Y=0;$Y<=$this->GridSizeY;$Y++)
{
$Value = $this->Points[$X][$Y];
if ( $Value != UNKNOWN && $Value != IGNORED )
{
$X1 = floor($X0+$X*$XSize)+$Padding;
$Y1 = floor($Y0+$Y*$YSize)+$Padding;
$X2 = floor($X0+$X*$XSize+$XSize);
$Y2 = floor($Y0+$Y*$YSize+$YSize);
if ( $Palette != NULL )
{
if ( isset($Palette[$Value]) && isset($Palette[$Value]["R"]) ) { $R = $Palette[$Value]["R"]; } else { $R = 0; }
if ( isset($Palette[$Value]) && isset($Palette[$Value]["G"]) ) { $G = $Palette[$Value]["G"]; } else { $G = 0; }
if ( isset($Palette[$Value]) && isset($Palette[$Value]["B"]) ) { $B = $Palette[$Value]["B"]; } else { $B = 0; }
if ( isset($Palette[$Value]) && isset($Palette[$Value]["Alpha"]) ) { $Alpha = $Palette[$Value]["Alpha"]; } else { $Alpha = 1000; }
}
else
{
$R = (($ShadeR2-$ShadeR1)/100)*$Value + $ShadeR1;
$G = (($ShadeG2-$ShadeG1)/100)*$Value + $ShadeG1;
$B = (($ShadeB2-$ShadeB1)/100)*$Value + $ShadeB1;
$Alpha = (($ShadeA2-$ShadeA1)/100)*$Value + $ShadeA1;
}
$Settings = array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
if ( $Border ) { $Settings["BorderR"] = $BorderR; $Settings["BorderG"] = $BorderG; $Settings["BorderB"] = $BorderB; }
if ( $Surrounding != -1 ) { $Settings["BorderR"] = $R+$Surrounding; $Settings["BorderG"] = $G+$Surrounding; $Settings["BorderB"] = $B+$Surrounding; }
$this->pChartObject->drawFilledRectangle($X1,$Y1,$X2-1,$Y2-1,$Settings);
}
}
}
}
/* Compute the missing points */
function computeMissing()
{
$Missing = "";
for($X=0;$X<=$this->GridSizeX;$X++)
{
for($Y=0;$Y<=$this->GridSizeY;$Y++)
{
if ( $this->Points[$X][$Y] == UNKNOWN )
$Missing[] = $X.",".$Y;
}
}
shuffle($Missing);
foreach($Missing as $Key => $Pos)
{
$Pos = preg_split("/,/",$Pos);
$X = $Pos[0];
$Y = $Pos[1];
if ( $this->Points[$X][$Y] == UNKNOWN )
{
$NearestNeighbor = $this->getNearestNeighbor($X,$Y);
$Value = 0; $Points = 0;
for($Xi=$X-$NearestNeighbor;$Xi<=$X+$NearestNeighbor;$Xi++)
{
for($Yi=$Y-$NearestNeighbor;$Yi<=$Y+$NearestNeighbor;$Yi++)
{
if ($Xi >=0 && $Yi >= 0 && $Xi <= $this->GridSizeX && $Yi <= $this->GridSizeY && $this->Points[$Xi][$Yi] != UNKNOWN && $this->Points[$Xi][$Yi] != IGNORED)
{
$Value = $Value + $this->Points[$Xi][$Yi]; $Points++;
}
}
}
if ( $Points != 0 ) { $this->Points[$X][$Y] = $Value / $Points; }
}
}
}
/* Return the nearest Neighbor distance of a point */
function getNearestNeighbor($Xp,$Yp)
{
$Nearest = UNKNOWN;
for($X=0;$X<=$this->GridSizeX;$X++)
{
for($Y=0;$Y<=$this->GridSizeY;$Y++)
{
if ( $this->Points[$X][$Y] != UNKNOWN && $this->Points[$X][$Y] != IGNORED )
{
$DistanceX = max($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);
}
}
?>
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