472 lines
20 KiB
PHP
472 lines
20 KiB
PHP
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<?php
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/*
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pDraw - pChart core class
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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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/* The GD extension is mandatory */
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if (!extension_loaded('gd') && !extension_loaded('gd2'))
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{
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echo "GD extension must be loaded. \r\n";
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exit();
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}
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/* Image map handling */
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define("IMAGE_MAP_STORAGE_FILE" , 680001);
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define("IMAGE_MAP_STORAGE_SESSION" , 680002);
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/* Last generated chart layout */
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define("CHART_LAST_LAYOUT_REGULAR" , 680011);
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define("CHART_LAST_LAYOUT_STACKED" , 680012);
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/* ImageMap string delimiter */
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define("IMAGE_MAP_DELIMITER" , chr(1));
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class pImage extends pDraw
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{
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/* Image settings, size, quality, .. */
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var $XSize = NULL; // Width of the picture
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var $YSize = NULL; // Height of the picture
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var $Picture = NULL; // GD picture object
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var $Antialias = TRUE; // Turn antialias on or off
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var $AntialiasQuality = 0; // Quality of the antialiasing implementation (0-1)
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var $Mask = ""; // Already drawn pixels mask (Filled circle implementation)
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var $TransparentBackground = FALSE; // Just to know if we need to flush the alpha channels when rendering
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/* Graph area settings */
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var $GraphAreaX1 = NULL; // Graph area X origin
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var $GraphAreaY1 = NULL; // Graph area Y origin
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var $GraphAreaX2 = NULL; // Graph area bottom right X position
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var $GraphAreaY2 = NULL; // Graph area bottom right Y position
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/* Scale settings */
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var $ScaleMinDivHeight = 20; // Minimum height for scame divs
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/* Font properties */
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var $FontName = "fonts/GeosansLight.ttf"; // Default font file
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var $FontSize = 12; // Default font size
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var $FontBox = NULL; // Return the bounding box of the last written string
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var $FontColorR = 0; // Default color settings
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var $FontColorG = 0; // Default color settings
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var $FontColorB = 0; // Default color settings
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var $FontColorA = 100; // Default transparency
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/* Shadow properties */
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var $Shadow = FALSE; // Turn shadows on or off
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var $ShadowX = NULL; // X Offset of the shadow
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var $ShadowY = NULL; // Y Offset of the shadow
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var $ShadowR = NULL; // R component of the shadow
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var $ShadowG = NULL; // G component of the shadow
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var $ShadowB = NULL; // B component of the shadow
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var $Shadowa = NULL; // Alpha level of the shadow
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/* Image map */
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var $ImageMap = NULL; // Aray containing the image map
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var $ImageMapIndex = "pChart"; // Name of the session array
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var $ImageMapStorageMode = NULL; // Save the current imagemap storage mode
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var $ImageMapAutoDelete = TRUE; // Automatic deletion of the image map temp files
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/* Data Set */
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var $DataSet = NULL; // Attached dataset
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/* Last generated chart info */
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var $LastChartLayout = CHART_LAST_LAYOUT_REGULAR; // Last layout : regular or stacked
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/* Class constructor */
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function pImage($XSize,$YSize,$DataSet=NULL,$TransparentBackground=FALSE)
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{
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$this->TransparentBackground = $TransparentBackground;
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if ( $DataSet != NULL ) { $this->DataSet = $DataSet; }
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$this->XSize = $XSize;
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$this->YSize = $YSize;
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$this->Picture = imagecreatetruecolor($XSize,$YSize);
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if ( $this->TransparentBackground )
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{
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imagealphablending($this->Picture,FALSE);
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imagefilledrectangle($this->Picture, 0,0,$XSize, $YSize, imagecolorallocatealpha($this->Picture, 255, 255, 255, 127));
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imagealphablending($this->Picture,TRUE);
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imagesavealpha($this->Picture,true);
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}
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else
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{
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$C_White = $this->AllocateColor($this->Picture,255,255,255);
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imagefilledrectangle($this->Picture,0,0,$XSize,$YSize,$C_White);
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}
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}
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/* Enable / Disable and set shadow properties */
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function setShadow($Enabled=TRUE,$Format="")
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{
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$X = isset($Format["X"]) ? $Format["X"] : 2;
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$Y = isset($Format["Y"]) ? $Format["Y"] : 2;
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$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"]) ? $Format["Alpha"] : 10;
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$this->Shadow = $Enabled;
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$this->ShadowX = $X;
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$this->ShadowY = $Y;
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$this->ShadowR = $R;
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$this->ShadowG = $G;
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$this->ShadowB = $B;
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$this->Shadowa = $Alpha;
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}
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/* Set the graph area position */
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function setGraphArea($X1,$Y1,$X2,$Y2)
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{
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if ( $X2 < $X1 || $X1 == $X2 || $Y2 < $Y1 || $Y1 == $Y2 ) { return(-1); }
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$this->GraphAreaX1 = $X1; $this->DataSet->Data["GraphArea"]["X1"] = $X1;
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$this->GraphAreaY1 = $Y1; $this->DataSet->Data["GraphArea"]["Y1"] = $Y1;
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$this->GraphAreaX2 = $X2; $this->DataSet->Data["GraphArea"]["X2"] = $X2;
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$this->GraphAreaY2 = $Y2; $this->DataSet->Data["GraphArea"]["Y2"] = $Y2;
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}
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/* Return the width of the picture */
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function getWidth()
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{ return($this->XSize); }
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/* Return the heigth of the picture */
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function getHeight()
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{ return($this->YSize); }
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/* Render the picture to a file */
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function render($FileName)
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{
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if ( $this->TransparentBackground ) { imagealphablending($this->Picture,false); imagesavealpha($this->Picture,true); }
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imagepng($this->Picture,$FileName);
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}
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/* Render the picture to a web browser stream */
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function stroke($BrowserExpire=FALSE)
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{
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if ( $this->TransparentBackground ) { imagealphablending($this->Picture,false); imagesavealpha($this->Picture,true); }
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if ( $BrowserExpire )
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{
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header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
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header("Cache-Control: no-cache");
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header("Pragma: no-cache");
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}
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header('Content-type: image/png');
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imagepng($this->Picture);
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}
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/* Automatic output method based on the calling interface */
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function autoOutput($FileName="output.png")
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{
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if (php_sapi_name() == "cli")
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$this->Render($FileName);
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else
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$this->Stroke();
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}
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/* Return the length between two points */
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function getLength($X1,$Y1,$X2,$Y2)
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{ return(sqrt(pow(max($X1,$X2)-min($X1,$X2),2)+pow(max($Y1,$Y2)-min($Y1,$Y2),2))); }
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/* Return the orientation of a line */
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function getAngle($X1,$Y1,$X2,$Y2)
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{
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$Opposite = $Y2 - $Y1; $Adjacent = $X2 - $X1;$Angle = rad2deg(atan2($Opposite,$Adjacent));
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if ($Angle > 0) { return($Angle); } else { return(360-abs($Angle)); }
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}
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/* Return the surrounding box of text area */
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function getTextBox_deprecated($X,$Y,$FontName,$FontSize,$Angle,$Text)
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{
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$Size = imagettfbbox($FontSize,$Angle,$FontName,$Text);
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$Width = $this->getLength($Size[0],$Size[1],$Size[2],$Size[3])+1;
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$Height = $this->getLength($Size[2],$Size[3],$Size[4],$Size[5])+1;
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$RealPos[0]["X"] = $X; $RealPos[0]["Y"] = $Y;
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$RealPos[1]["X"] = cos((360-$Angle)*PI/180)*$Width + $RealPos[0]["X"]; $RealPos[1]["Y"] = sin((360-$Angle)*PI/180)*$Width + $RealPos[0]["Y"];
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$RealPos[2]["X"] = cos((270-$Angle)*PI/180)*$Height + $RealPos[1]["X"]; $RealPos[2]["Y"] = sin((270-$Angle)*PI/180)*$Height + $RealPos[1]["Y"];
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$RealPos[3]["X"] = cos((180-$Angle)*PI/180)*$Width + $RealPos[2]["X"]; $RealPos[3]["Y"] = sin((180-$Angle)*PI/180)*$Width + $RealPos[2]["Y"];
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$RealPos[TEXT_ALIGN_BOTTOMLEFT]["X"] = $RealPos[0]["X"]; $RealPos[TEXT_ALIGN_BOTTOMLEFT]["Y"] = $RealPos[0]["Y"];
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$RealPos[TEXT_ALIGN_BOTTOMRIGHT]["X"] = $RealPos[1]["X"]; $RealPos[TEXT_ALIGN_BOTTOMRIGHT]["Y"] = $RealPos[1]["Y"];
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return($RealPos);
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}
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/* Return the surrounding box of text area */
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function getTextBox($X,$Y,$FontName,$FontSize,$Angle,$Text)
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{
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$coords = imagettfbbox($FontSize, 0, $FontName, $Text);
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$a = deg2rad($Angle); $ca = cos($a); $sa = sin($a); $RealPos = array();
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for($i = 0; $i < 7; $i += 2)
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{
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$RealPos[$i/2]["X"] = $X + round($coords[$i] * $ca + $coords[$i+1] * $sa);
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$RealPos[$i/2]["Y"] = $Y + round($coords[$i+1] * $ca - $coords[$i] * $sa);
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}
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$RealPos[TEXT_ALIGN_BOTTOMLEFT]["X"] = $RealPos[0]["X"]; $RealPos[TEXT_ALIGN_BOTTOMLEFT]["Y"] = $RealPos[0]["Y"];
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$RealPos[TEXT_ALIGN_BOTTOMRIGHT]["X"] = $RealPos[1]["X"]; $RealPos[TEXT_ALIGN_BOTTOMRIGHT]["Y"] = $RealPos[1]["Y"];
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$RealPos[TEXT_ALIGN_TOPLEFT]["X"] = $RealPos[3]["X"]; $RealPos[TEXT_ALIGN_TOPLEFT]["Y"] = $RealPos[3]["Y"];
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$RealPos[TEXT_ALIGN_TOPRIGHT]["X"] = $RealPos[2]["X"]; $RealPos[TEXT_ALIGN_TOPRIGHT]["Y"] = $RealPos[2]["Y"];
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$RealPos[TEXT_ALIGN_BOTTOMMIDDLE]["X"] = ($RealPos[1]["X"]-$RealPos[0]["X"])/2+$RealPos[0]["X"]; $RealPos[TEXT_ALIGN_BOTTOMMIDDLE]["Y"] = ($RealPos[0]["Y"]-$RealPos[1]["Y"])/2+$RealPos[1]["Y"];
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$RealPos[TEXT_ALIGN_TOPMIDDLE]["X"] = ($RealPos[2]["X"]-$RealPos[3]["X"])/2+$RealPos[3]["X"]; $RealPos[TEXT_ALIGN_TOPMIDDLE]["Y"] = ($RealPos[3]["Y"]-$RealPos[2]["Y"])/2+$RealPos[2]["Y"];
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$RealPos[TEXT_ALIGN_MIDDLELEFT]["X"] = ($RealPos[0]["X"]-$RealPos[3]["X"])/2+$RealPos[3]["X"]; $RealPos[TEXT_ALIGN_MIDDLELEFT]["Y"] = ($RealPos[0]["Y"]-$RealPos[3]["Y"])/2+$RealPos[3]["Y"];
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$RealPos[TEXT_ALIGN_MIDDLERIGHT]["X"] = ($RealPos[1]["X"]-$RealPos[2]["X"])/2+$RealPos[2]["X"]; $RealPos[TEXT_ALIGN_MIDDLERIGHT]["Y"] = ($RealPos[1]["Y"]-$RealPos[2]["Y"])/2+$RealPos[2]["Y"];
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$RealPos[TEXT_ALIGN_MIDDLEMIDDLE]["X"] = ($RealPos[1]["X"]-$RealPos[3]["X"])/2+$RealPos[3]["X"]; $RealPos[TEXT_ALIGN_MIDDLEMIDDLE]["Y"] = ($RealPos[0]["Y"]-$RealPos[2]["Y"])/2+$RealPos[2]["Y"];
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return($RealPos);
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}
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/* Set current font properties */
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function setFontProperties($Format="")
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{
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$R = isset($Format["R"]) ? $Format["R"] : -1;
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$G = isset($Format["G"]) ? $Format["G"] : -1;
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$B = isset($Format["B"]) ? $Format["B"] : -1;
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$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
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$FontName = isset($Format["FontName"]) ? $Format["FontName"] : NULL;
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$FontSize = isset($Format["FontSize"]) ? $Format["FontSize"] : NULL;
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if ( $R != -1) { $this->FontColorR = $R; }
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if ( $G != -1) { $this->FontColorG = $G; }
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if ( $B != -1) { $this->FontColorB = $B; }
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if ( $Alpha != NULL) { $this->FontColorA = $Alpha; }
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if ( $FontName != NULL )
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$this->FontName = $FontName;
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if ( $FontSize != NULL )
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$this->FontSize = $FontSize;
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}
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/* Returns the 1st decimal values (used to correct AA bugs) */
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function getFirstDecimal($Value)
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{
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$Values = preg_split("/\./",$Value);
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if ( isset($Values[1]) ) { return(substr($Values[1],0,1)); } else { return(0); }
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}
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/* Attach a dataset to your pChart Object */
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function setDataSet(&$DataSet)
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{ $this->DataSet = $DataSet; }
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/* Print attached dataset contents to STDOUT */
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function printDataSet()
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{ print_r($this->DataSet); }
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/* Initialise the image map methods */
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function initialiseImageMap($Name="pChart",$StorageMode=IMAGE_MAP_STORAGE_SESSION,$UniqueID="imageMap",$StorageFolder="tmp")
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{
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$this->ImageMapIndex = $Name;
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$this->ImageMapStorageMode = $StorageMode;
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if ($StorageMode == IMAGE_MAP_STORAGE_SESSION)
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{
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if(!isset($_SESSION)) { session_start(); }
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$_SESSION[$this->ImageMapIndex] = NULL;
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}
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elseif($StorageMode == IMAGE_MAP_STORAGE_FILE)
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{
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$this->ImageMapFileName = $UniqueID;
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$this->ImageMapStorageFolder = $StorageFolder;
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if (file_exists($StorageFolder."/".$UniqueID.".map")) { unlink($StorageFolder."/".$UniqueID.".map"); }
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}
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}
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/* Add a zone to the image map */
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function addToImageMap($Type,$Plots,$Color=NULL,$Title=NULL,$Message=NULL,$HTMLEncode=FALSE)
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{
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if ( $this->ImageMapStorageMode == NULL ) { $this->initialiseImageMap(); }
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/* Encode the characters in the imagemap in HTML standards */
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$Title = str_replace("€","\u20AC",$Title);
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$Title = htmlentities($Title,ENT_QUOTES,"ISO-8859-15");
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if ( $HTMLEncode )
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{
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$Message = htmlentities($Message,ENT_QUOTES,"ISO-8859-15");
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$Message = str_replace("<","<",$Message);
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$Message = str_replace(">",">",$Message);
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}
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if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
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{
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if(!isset($_SESSION)) { $this->initialiseImageMap(); }
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$_SESSION[$this->ImageMapIndex][] = array($Type,$Plots,$Color,$Title,$Message);
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}
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elseif($this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE)
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{
|
||
|
|
$Handle = fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", 'a');
|
||
|
|
fwrite($Handle, $Type.IMAGE_MAP_DELIMITER.$Plots.IMAGE_MAP_DELIMITER.$Color.IMAGE_MAP_DELIMITER.$Title.IMAGE_MAP_DELIMITER.$Message."\r\n");
|
||
|
|
fclose($Handle);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Remove VOID values from an imagemap custom values array */
|
||
|
|
function removeVOIDFromArray($SerieName, $Values)
|
||
|
|
{
|
||
|
|
if ( !isset($this->DataSet->Data["Series"][$SerieName]) ) { return(-1); }
|
||
|
|
|
||
|
|
$Result = "";
|
||
|
|
foreach($this->DataSet->Data["Series"][$SerieName]["Data"] as $Key => $Value)
|
||
|
|
{ if ( $Value != VOID && isset($Values[$Key]) ) { $Result[] = $Values[$Key]; } }
|
||
|
|
return($Result);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Replace the title of one image map serie */
|
||
|
|
function replaceImageMapTitle($OldTitle, $NewTitle)
|
||
|
|
{
|
||
|
|
if ( $this->ImageMapStorageMode == NULL ) { return(-1); }
|
||
|
|
|
||
|
|
if ( is_array($NewTitle) ) { $NewTitle = $this->removeVOIDFromArray($OldTitle, $NewTitle); }
|
||
|
|
|
||
|
|
if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
|
||
|
|
{
|
||
|
|
if(!isset($_SESSION)) { return(-1); }
|
||
|
|
if ( is_array($NewTitle) )
|
||
|
|
{ $ID = 0; foreach($_SESSION[$this->ImageMapIndex] as $Key => $Settings) { if ( $Settings[3] == $OldTitle && isset($NewTitle[$ID])) { $_SESSION[$this->ImageMapIndex][$Key][3] = $NewTitle[$ID]; $ID++; } } }
|
||
|
|
else
|
||
|
|
{ foreach($_SESSION[$this->ImageMapIndex] as $Key => $Settings) { if ( $Settings[3] == $OldTitle ) { $_SESSION[$this->ImageMapIndex][$Key][3] = $NewTitle; } } }
|
||
|
|
}
|
||
|
|
elseif( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE )
|
||
|
|
{
|
||
|
|
$TempArray = "";
|
||
|
|
$Handle = @fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", "r");
|
||
|
|
if ($Handle)
|
||
|
|
{
|
||
|
|
while (($Buffer = fgets($Handle, 4096)) !== false)
|
||
|
|
{
|
||
|
|
$Fields = preg_split("/".IMAGE_MAP_DELIMITER."/",str_replace(array(chr(10),chr(13)),"",$Buffer));
|
||
|
|
$TempArray[] = array($Fields[0],$Fields[1],$Fields[2],$Fields[3],$Fields[4]);
|
||
|
|
}
|
||
|
|
fclose($Handle);
|
||
|
|
|
||
|
|
if ( is_array($NewTitle) )
|
||
|
|
{ $ID = 0; foreach($TempArray as $Key => $Settings) { if ( $Settings[3] == $OldTitle && isset($NewTitle[$ID]) ) { $TempArray[$Key][3] = $NewTitle[$ID]; $ID++; } } }
|
||
|
|
else
|
||
|
|
{ foreach($TempArray as $Key => $Settings) { if ( $Settings[3] == $OldTitle ) { $TempArray[$Key][3] = $NewTitle; } } }
|
||
|
|
|
||
|
|
$Handle = fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", 'w');
|
||
|
|
foreach($TempArray as $Key => $Settings)
|
||
|
|
{ fwrite($Handle, $Settings[0].IMAGE_MAP_DELIMITER.$Settings[1].IMAGE_MAP_DELIMITER.$Settings[2].IMAGE_MAP_DELIMITER.$Settings[3].IMAGE_MAP_DELIMITER.$Settings[4]."\r\n"); }
|
||
|
|
fclose($Handle);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Replace the values of the image map contents */
|
||
|
|
function replaceImageMapValues($Title, $Values)
|
||
|
|
{
|
||
|
|
if ( $this->ImageMapStorageMode == NULL ) { return(-1); }
|
||
|
|
|
||
|
|
$Values = $this->removeVOIDFromArray($Title, $Values);
|
||
|
|
$ID = 0;
|
||
|
|
if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
|
||
|
|
{
|
||
|
|
if(!isset($_SESSION)) { return(-1); }
|
||
|
|
foreach($_SESSION[$this->ImageMapIndex] as $Key => $Settings) { if ( $Settings[3] == $Title ) { if ( isset($Values[$ID]) ) { $_SESSION[$this->ImageMapIndex][$Key][4] = $Values[$ID]; } $ID++; } }
|
||
|
|
}
|
||
|
|
elseif( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE )
|
||
|
|
{
|
||
|
|
$TempArray = "";
|
||
|
|
$Handle = @fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", "r");
|
||
|
|
if ($Handle)
|
||
|
|
{
|
||
|
|
while (($Buffer = fgets($Handle, 4096)) !== false)
|
||
|
|
{
|
||
|
|
$Fields = preg_split("/".IMAGE_MAP_DELIMITER."/",str_replace(array(chr(10),chr(13)),"",$Buffer));
|
||
|
|
$TempArray[] = array($Fields[0],$Fields[1],$Fields[2],$Fields[3],$Fields[4]);
|
||
|
|
}
|
||
|
|
fclose($Handle);
|
||
|
|
|
||
|
|
foreach($TempArray as $Key => $Settings) { if ( $Settings[3] == $Title ) { if ( isset($Values[$ID]) ) { $TempArray[$Key][4] = $Values[$ID]; } $ID++; } }
|
||
|
|
|
||
|
|
$Handle = fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", 'w');
|
||
|
|
foreach($TempArray as $Key => $Settings)
|
||
|
|
{ fwrite($Handle, $Settings[0].IMAGE_MAP_DELIMITER.$Settings[1].IMAGE_MAP_DELIMITER.$Settings[2].IMAGE_MAP_DELIMITER.$Settings[3].IMAGE_MAP_DELIMITER.$Settings[4]."\r\n"); }
|
||
|
|
fclose($Handle);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Dump the image map */
|
||
|
|
function dumpImageMap($Name="pChart",$StorageMode=IMAGE_MAP_STORAGE_SESSION,$UniqueID="imageMap",$StorageFolder="tmp")
|
||
|
|
{
|
||
|
|
$this->ImageMapIndex = $Name;
|
||
|
|
$this->ImageMapStorageMode = $StorageMode;
|
||
|
|
|
||
|
|
if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
|
||
|
|
{
|
||
|
|
if(!isset($_SESSION)) { session_start(); }
|
||
|
|
if ( $_SESSION[$Name] != NULL )
|
||
|
|
{
|
||
|
|
foreach($_SESSION[$Name] as $Key => $Params)
|
||
|
|
{ echo $Params[0].IMAGE_MAP_DELIMITER.$Params[1].IMAGE_MAP_DELIMITER.$Params[2].IMAGE_MAP_DELIMITER.$Params[3].IMAGE_MAP_DELIMITER.$Params[4]."\r\n"; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE )
|
||
|
|
{
|
||
|
|
if (file_exists($StorageFolder."/".$UniqueID.".map"))
|
||
|
|
{
|
||
|
|
$Handle = @fopen($StorageFolder."/".$UniqueID.".map", "r");
|
||
|
|
if ($Handle) { while (($Buffer = fgets($Handle, 4096)) !== false) { echo $Buffer; } }
|
||
|
|
fclose($Handle);
|
||
|
|
|
||
|
|
if ( $this->ImageMapAutoDelete ) { unlink($StorageFolder."/".$UniqueID.".map"); }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* When the image map is returned to the client, the script ends */
|
||
|
|
exit();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Return the HTML converted color from the RGB composite values */
|
||
|
|
function toHTMLColor($R,$G,$B)
|
||
|
|
{
|
||
|
|
$R=intval($R); $G=intval($G); $B=intval($B);
|
||
|
|
$R=dechex($R<0?0:($R>255?255:$R)); $G=dechex($G<0?0:($G>255?255:$G));$B=dechex($B<0?0:($B>255?255:$B));
|
||
|
|
$Color="#".(strlen($R) < 2?'0':'').$R; $Color.=(strlen($G) < 2?'0':'').$G; $Color.= (strlen($B) < 2?'0':'').$B;
|
||
|
|
return($Color);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Reverse an array of points */
|
||
|
|
function reversePlots($Plots)
|
||
|
|
{
|
||
|
|
$Result = "";
|
||
|
|
for($i=count($Plots)-2;$i>=0;$i=$i-2) { $Result[] = $Plots[$i]; $Result[] = $Plots[$i+1]; }
|
||
|
|
return($Result);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Mirror Effect */
|
||
|
|
function drawAreaMirror($X,$Y,$Width,$Height,$Format="")
|
||
|
|
{
|
||
|
|
$StartAlpha = isset($Format["StartAlpha"]) ? $Format["StartAlpha"] : 80;
|
||
|
|
$EndAlpha = isset($Format["EndAlpha"]) ? $Format["EndAlpha"] : 0;
|
||
|
|
|
||
|
|
$AlphaStep = ($StartAlpha-$EndAlpha)/$Height;
|
||
|
|
|
||
|
|
$Picture = imagecreatetruecolor($this->XSize,$this->YSize);
|
||
|
|
imagecopy($Picture,$this->Picture,0,0,0,0,$this->XSize,$this->YSize);
|
||
|
|
|
||
|
|
for($i=1;$i<=$Height;$i++)
|
||
|
|
{
|
||
|
|
if ( $Y+($i-1) < $this->YSize && $Y-$i > 0 ) { imagecopymerge($Picture,$this->Picture,$X,$Y+($i-1),$X,$Y-$i,$Width,1,$StartAlpha-$AlphaStep*$i); }
|
||
|
|
}
|
||
|
|
|
||
|
|
imagecopy($this->Picture,$Picture,0,0,0,0,$this->XSize,$this->YSize);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
?>
|