107 lines
4.3 KiB
PHP
107 lines
4.3 KiB
PHP
<?php
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function orientChart($orients,$filename){
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/*************Configuration Starts******************/
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// Heading
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$chartTitle = "Orientamenti";
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// Branding / extra label (optional)
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$logo = "Dati del ".date("d/m/Y").", ".date("H:i:s");
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// Data
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$arrData=$orients;
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/*************************End****************************/
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/*****************For Programmers************************/
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$scale=2;
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$imageWidth = 300*$scale; //image width
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$imageHeight = 200*$scale; //image height
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$diameter = 150*$scale-50; //pie diameter
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$centerX = 100*$scale; //pie center pixels x
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$centerY = 100*$scale; //pie center pixels y
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$labelWidth = 10*$scale; //label width, no need to change
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/*************************End****************************/
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createPieChart($arrData, $chartTitle, $logo, $imageWidth, $imageHeight, $diameter, $centerX, $centerY, $labelWidth,$filename);
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}
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function createPieChart($arrData, $chartTitle, $logo, $imageWidth, $imageHeight, $diameter, $centerX, $centerY, $labelWidth,$filename) {
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$item = array_keys($arrData);
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$data = array_values($arrData);
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for( $i = 0; $i < count( $data ); $i++ ) {
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$dataTotal += $data[ $i ];
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}
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$im = ImageCreate( $imageWidth, $imageHeight );
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$color[] = ImageColorAllocate( $im, 255, 0, 0 ); //red
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$color[] = ImageColorAllocate( $im, 255, 204, 0 );//yellow
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$color[] = ImageColorAllocate( $im, 153, 204, 0 );//green
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$color[] = ImageColorAllocate( $im, 153, 51, 255 );//purple
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$color[] = ImageColorAllocate( $im, 0, 128, 255 );//blue
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$color[] = ImageColorAllocate( $im, 255, 0, 128 );//pink
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$color[] = ImageColorAllocate( $im, 192, 192, 192 );//grey
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$color[] = ImageColorAllocate( $im, 204, 204, 0 );
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$color[] = ImageColorAllocate( $im, 64, 128, 128 );
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$color[] = ImageColorAllocate( $im, 204, 102, 153 );
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$white = ImageColorAllocate( $im, 255, 255, 255 );
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$black = ImageColorAllocate( $im, 0, 0, 0 );
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$grey = ImageColorAllocate( $im, 215, 215, 215 );
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ImageFill( $im, 0, 0, $white );
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$degree = 0;
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for( $i = 0; $i < count( $data ); $i++ ) {
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$startDegree = round( $degree );
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$degree += ( $data[ $i ] / $dataTotal ) * 360;
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$endDegree = round( $degree );
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$currentColor = $color[ $i % ( count( $color ) ) ];
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ImageArc( $im, $centerX, $centerY, $diameter, $diameter, $startDegree, $endDegree, $currentColor );
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list( $arcX, $arcY ) = circlePoint( $startDegree, $diameter );
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ImageLine( $im, $centerX, $centerY, floor( $centerX + $arcX ), floor( $centerY + $arcY ), $currentColor );
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list( $arcX, $arcY ) = circlePoint( $endDegree, $diameter );
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ImageLine( $im, $centerX, $centerY, ceil( $centerX + $arcX ), ceil( $centerY + $arcY ), $currentColor );
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$midPoint = round( ( ( $endDegree - $startDegree ) / 2 ) + $startDegree );
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list( $arcX, $arcY ) = circlePoint( $midPoint, $diameter / 1.5 );
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ImageFillToBorder( $im, floor( $centerX + $arcX ), floor( $centerY + $arcY ), $currentColor, $currentColor );
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ImageString( $im, 2, floor( $centerX + $arcX ), floor( $centerY + $arcY ), intval( round( $data[ $i ] / $dataTotal * 100 ) ) . "%", $black );
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}
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$labelX = $centerX + $diameter / 2 + 10;
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$labelY = $centerY - $diameter / 4;
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$titleX = $labelX - $diameter / 4;
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$titleY = $centerY - $diameter / 2;
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ImageString( $im, 3, $titleX + 1, $titleY + 1, $chartTitle, $grey );
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ImageString( $im, 3, $titleX, $titleY, $chartTitle, $black );
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for( $i = 0; $i < count( $item ); $i++ ) {
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$currentColor = $color[ $i % ( count( $color ) ) ];
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ImageRectangle( $im, $labelX, $labelY, $labelX + $labelWidth, $labelY + $labelWidth, $black );
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ImageFilledRectangle( $im, $labelX + 1, $labelY + 1, $labelX + $labelWidth, $labelY + $labelWidth, $currentColor );
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ImageString( $im, 2, $labelX + $labelWidth + 5, $labelY, $item[ $i ], $black );
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ImageString( $im, 2, $labelX + $labelWidth + 90, $labelY, $data[ $i ]." %", $black );
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$labelY += $labelWidth + 2;
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}
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//ImageString( $im, 3, $labelX, $labelY, "Total:", $black );
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ImageString( $im, 3, $labelX + $labelWidth + 60, $labelY, $dataTotal, $black );
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ImageString( $im, 2, $labelX, $labelY + 15, $logo, $black );
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ImagePNG( $im ,$filename);
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ImageDestroy( $im );
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}
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function circlePoint( $deg, $dia ) {
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$x = cos( deg2rad( $deg ) ) * ( $dia / 2 );
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$y = sin( deg2rad( $deg ) ) * ( $dia / 2 );
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return array( $x, $y );
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}
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