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trackdirect/htdocs/public/symbols/symbol.php

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<?php
header('Access-Control-Allow-Origin: *');
header("Cache-Control: max-age=2592000"); //30days (60sec * 60min * 24hours * 30days)
// Contains ascii values that corresponds to symbols with overlay support (for symbols in the alternative table)
$alternativeSymbolWithOverlaySupport = [33, 35, 37, 38, 39, 45, 62, 64, 79, 87, 91, 95, 97, 115, 122, 48, 65, 68, 69, 72, 94, 99, 105, 110, 117, 118];
$alternativeSymbolThatShouldNotBeFlipped = [115, 62, 94, 79];
$primarySymbolThatShouldNotBeFlipped = [94, 83, 39, 88];
$primarySymbolRotateDiff[40] = -90;
$primarySymbolRotateDiff[42] = -90;
$primarySymbolRotateDiff[60] = -90;
$primarySymbolRotateDiff[61] = -90;
$primarySymbolRotateDiff[62] = -90;
$primarySymbolRotateDiff[67] = -90;
$primarySymbolRotateDiff[70] = -90;
$primarySymbolRotateDiff[80] = -90;
$primarySymbolRotateDiff[85] = -90;
$primarySymbolRotateDiff[89] = -90;
$primarySymbolRotateDiff[91] = -90;
$primarySymbolRotateDiff[97] = -90;
$primarySymbolRotateDiff[98] = -90;
$primarySymbolRotateDiff[101] = -90;
$primarySymbolRotateDiff[102] = -90;
$primarySymbolRotateDiff[103] = -90;
$primarySymbolRotateDiff[106] = -90;
$primarySymbolRotateDiff[107] = -90;
$primarySymbolRotateDiff[115] = -90;
$primarySymbolRotateDiff[117] = -90;
$primarySymbolRotateDiff[118] = -90;
$primarySymbolRotateDiff[39] = 0; // Small Airplace
$primarySymbolRotateDiff[94] = 0; // Large Airplane
$primarySymbolRotateDiff[83] = 0;
$primarySymbolRotateDiff[88] = 0; // Helicopter
$alternativeSymbolRotateDiff[106] = -90;
$alternativeSymbolRotateDiff[107] = -90;
$alternativeSymbolRotateDiff[117] = -90;
$alternativeSymbolRotateDiff[115] = 0;
$alternativeSymbolRotateDiff[118] = -90;
$alternativeSymbolRotateDiff[91] = -90;
$alternativeSymbolRotateDiff[94] = 0;
$alternativeSymbolRotateDiff[79] = 0;
$alternativeSymbolRotateDiff[62] = 0;
$svgContent = null;
if (isset($_GET['symbol']) && isset($_GET['symbol_table'])) {
// symbol and symbol_table is ascii values so everything should be numbers
$symbol = preg_replace("/[^0-9]/","",$_GET['symbol']);
$symbolTable = preg_replace("/[^0-9]/","",$_GET['symbol_table']);
if ($symbol >= 32 && $symbol <= 126) {
// Init $course
if (isset($_GET['course'])) {
$course = preg_replace("/[^0-9]/","",$_GET['course']);
while ($course > 360) {
$course = $course - 360;
}
while ($course < 0) {
$course = $course + 360;
}
if ($course == 360) {
$course = 0;
}
} else {
$course = null;
}
// Init hight and width
if (isset($_GET['width']) && isset($_GET['height'])) {
$width = preg_replace("/[^0-9]/","",$_GET['width']);
$height = preg_replace("/[^0-9]/","",$_GET['height']);
if ($width > 1024) {
$width = 1024;
}
if ($height > 1024) {
$height = 1024;
}
} else {
$width = null;
$height = null;
}
// Init scale hight and width
if (isset($_GET['scale_width']) && isset($_GET['scale_height'])) {
$scaleWidth = preg_replace("/[^0-9]/","",$_GET['scale_width']);
$scaleHeight = preg_replace("/[^0-9]/","",$_GET['scale_height']);
if ($scaleWidth > 1024) {
$scaleWidth = 1024;
}
if ($scaleHeight > 1024) {
$scaleHeight = 1024;
}
if ($scaleWidth == 24 && $scaleHeight == 24) {
$scaleWidth = null;
$scaleHeight = null;
}
} else {
$scaleWidth = null;
$scaleHeight = null;
}
// Init $symbolCategory and $overlay
$overlay = null;
if ($symbolTable == 47) {
// Primary table (47 == '/')
$symbolCategory = 1;
} else if ($symbolTable == 92) {
// Alternative table (92 == '\')
$symbolCategory = 2;
} else if (preg_match("/^[a-zA-Z\d]$/", chr($symbolTable))) {
// Alternative table with overlay
$filepath1 = './svgicons/' . $symbol . '-' . $symbolTable . '.svg';
$filepath2 = './svgicons/' . $symbol . '-' . '3.svg';
if (file_exists($filepath1)) {
$symbolCategory = $symbolTable;
} else if (file_exists($filepath2)) {
$symbolCategory = 3;
} else {
$symbolCategory = 2;
}
if (in_array($symbol, $alternativeSymbolWithOverlaySupport) && ($symbolCategory == 2 || $symbolCategory == 3)) {
$overlay = chr($symbolTable);
}
} else {
// Use primary if nothing else fits
$symbolCategory = 1;
}
// Init $filepath
$name = $symbol . '-' . $symbolCategory;
$filepath = './svgicons/' . $name . '.svg';
if (file_exists($filepath)) {
$svgContent = file_get_contents($filepath);
if ($overlay !== null || $course !== null || ($width !== null && $height !== null) || ($scaleWidth !== null && $scaleHeight !== null)) {
// We will do changes to symbol (course or overlay)
$doc = new DOMDocument();
$doc->loadXML($svgContent);
$svg = $doc->getElementsByTagName('svg')->item(0);
$childs = Array();
foreach ($svg->childNodes as $child) {
if (isset($child->tagName) && $child->tagName != 'metadata') {
$childs[] = $child;
}
}
// Wrapper1 used for width and height transfrom
$wrapper1 = $doc->createElement('g');
$wrapper1 = $svg->appendChild($wrapper1);
// Wrapper 2 used for rotate
$wrapper2 = $doc->createElement('g');
$wrapper2 = $wrapper1->appendChild($wrapper2);
// Wrapper 3 used for flip
$wrapper3 = $doc->createElement('g');
$wrapper3 = $wrapper2->appendChild($wrapper3);
// Wrapper 4 used for text
$wrapper4 = $doc->createElement('g');
$wrapper4 = $wrapper3->appendChild($wrapper4);
foreach ($childs as $child) {
$removedChild = $svg->removeChild($child);
$wrapper4->appendChild($child);
}
if ($overlay !== null) {
// We should add overlay
// dominant-baseline do not seem to be supported by internet explorer so we have to do vertical alignment manual by changing y
$text = $doc->createElement('text');
$text->setAttribute('id','textoverlay');
$text = $wrapper4->appendChild($text);
$tspan = $doc->createElement('tspan', chr($symbolTable));
$tspan = $text->appendChild($tspan);
$tspan->setAttribute('id','tspanoverlay');
//$tspan->setAttribute('sodipodi:linespacing','0%');
$tspan->setAttribute('font-family','Helvetica');
$tspan->setAttribute('text-anchor','middle');
$tspan->setAttribute('text-align','center');
$tspan->setAttribute('word-spacing','0');
//$tspan->setAttribute('line-height','0%');
$tspan->setAttribute('letter-spacing','0');
$tspan->setAttribute('font-weight','bold');
$tspan->setAttribute('x','12'); // left/right (higher means more to the right)
$tspan->setAttribute('y','12'); // up/down (higher means more down)
// White text, normal size, bold, centered
if (in_array($symbol, Array(35, 38, 62, 87, 95, 97))) {
$tspan->setAttribute('fill','#ffffff');
$tspan->setAttribute('font-size','14');
$tspan->setAttribute('dy','5.2');
$tspan->setAttribute('dx','0');
if (in_array(chr($symbolTable), array('Y', 'V'))) {
$tspan->setAttribute('dx','-0.2');
}
if (in_array(chr($symbolTable), array('S', 'W', 'Q'))) {
$tspan->setAttribute('dx','-0.1');
}
if (in_array(chr($symbolTable), array('R', 'P', 'D', 'F', 'K', 'L'))) {
$tspan->setAttribute('dx','0.4');
}
}
// White text, normal size, bold, centered (little bit to the left)
if (in_array($symbol, Array(105))) {
$tspan->setAttribute('fill','#ffffff');
$tspan->setAttribute('font-size','14');
$tspan->setAttribute('dy','4.5');
$tspan->setAttribute('dx','-0.5');
if (in_array(chr($symbolTable), array('S', 'W'))) {
$tspan->setAttribute('dx','-0.6');
}
if (in_array(chr($symbolTable), array('R', 'P', 'D', 'F', 'K', 'L'))) {
$tspan->setAttribute('dx','-0.1');
}
}
// White/Yellow text, normal size, bold, centered, a bit lower
if (in_array($symbol, Array(37, 110, 115, 122))) {
if ($symbol == 37) {
$tspan->setAttribute('fill','#ffff00');
} else {
$tspan->setAttribute('fill','#ffffff');
}
$tspan->setAttribute('font-size','14');
$tspan->setAttribute('dy','8');
$tspan->setAttribute('dx','-0.1');
if (in_array(chr($symbolTable), array('T'))) {
$tspan->setAttribute('dx','0');
}
if (in_array(chr($symbolTable), array('S', 'Y'))) {
$tspan->setAttribute('dx','-0.2');
}
}
// Black text, normal size, bold, centered, a bit lower
if (in_array($symbol, Array(45))) {
$tspan->setAttribute('fill','#000000');
$tspan->setAttribute('font-size','14');
$tspan->setAttribute('dy','8');
$tspan->setAttribute('dx','-0.1');
if (in_array(chr($symbolTable), array('S', 'Y'))) {
$tspan->setAttribute('dx','-0.2');
}
}
// White text, normal size, bold, centered
if (in_array($symbol, Array(68, 69))) {
$tspan->setAttribute('fill','#ffffff');
$tspan->setAttribute('font-size','14');
$tspan->setAttribute('dy','4.6');
if (in_array(chr($symbolTable), array('R', 'P', 'D', 'F', 'K', 'L'))) {
$tspan->setAttribute('dx','0.4');
}
if (in_array(chr($symbolTable), array('S', 'Y'))) {
$tspan->setAttribute('dx','-0.2');
}
}
// Black text, normal size, bold, centered
if (in_array($symbol, Array(48, 65, 72))) {
$tspan->setAttribute('fill','#000000');
$tspan->setAttribute('font-size','14');
$tspan->setAttribute('dy','4.6');
if (in_array(chr($symbolTable), array('R', 'P', 'D', 'F', 'K', 'L'))) {
$tspan->setAttribute('dx','0.4');
}
}
// Black text, normal size, bold, centered, a bit higher
if (in_array($symbol, Array(79))) {
$tspan->setAttribute('fill','#000000');
$tspan->setAttribute('font-size','14');
$tspan->setAttribute('dy','1.5');
if (in_array(chr($symbolTable), array('R', 'P', 'D', 'F', 'K', 'L'))) {
$tspan->setAttribute('dx','0.4');
}
}
// Black text, smaller size, bold, centered
if (in_array($symbol, Array(99))) {
$tspan->setAttribute('fill','#000000');
$tspan->setAttribute('font-size','12');
$tspan->setAttribute('dy','5');
if (in_array(chr($symbolTable), array('S', 'W'))) {
$tspan->setAttribute('dx','-0.1');
}
}
// Black text, very very small size, bold, right upper corner (besides airplane, human, symbol)
if (in_array($symbol, Array(33, 39, 91, 94))) {
$tspan->setAttribute('fill','#000000');
$tspan->setAttribute('font-size','9');
if ($symbol == 39 || $symbol == 33) {
$tspan->setAttribute('dx','17');
} else {
$tspan->setAttribute('dx','11');
}
$tspan->setAttribute('dy','-4');
}
// White text, small size, bold, centered, a bit lower
if (in_array($symbol, Array(64))) {
$tspan->setAttribute('fill','#ffffff');
$tspan->setAttribute('font-size','10');
$tspan->setAttribute('dy','3.4');
$tspan->setAttribute('dx','-0.1');
}
// White text, very small size, bold, a bit to the right (on trucks)
if (in_array($symbol, Array(117))) {
$tspan->setAttribute('fill','#ffffff');
$tspan->setAttribute('font-size','9');
$tspan->setAttribute('dy','0.7');
$tspan->setAttribute('dx','-3');
}
// White text, very small size, bold, a bit to the right (on vans)
if (in_array($symbol, Array(118))) {
$tspan->setAttribute('fill','#ffffff');
$tspan->setAttribute('font-size','9');
$tspan->setAttribute('dy','0.3');
$tspan->setAttribute('dx','-3');
}
}
if ($course !== null) {
// We should rotate symbol
if ($symbolCategory == 1 && isset($primarySymbolRotateDiff[$symbol])) {
$adjustedCourse = $course + $primarySymbolRotateDiff[$symbol];
} else if ($symbolCategory != 1 && isset($alternativeSymbolRotateDiff[$symbol])) {
$adjustedCourse = $course + $alternativeSymbolRotateDiff[$symbol];
} else {
$course = 0;
$adjustedCourse = 0;
}
$wrapper2->setAttribute('transform', 'rotate(' . $adjustedCourse . ' 12 12)');
if (($symbolCategory == 1 && !in_array($symbol, $primarySymbolThatShouldNotBeFlipped))
|| ($symbolCategory != 1 && !in_array($symbol, $alternativeSymbolThatShouldNotBeFlipped))) {
if ($course > 180) {
// Symbols that rotate more than 180 deg should be flipped
$wrapper3->setAttribute('transform', 'translate(0,24) scale(1, -1)');
if (isset($tspan)) {
// Flip letter back
$x = 24 + $tspan->getAttribute('dx');
$tspan->setAttribute('transform', 'translate(' . $x . ', 0) scale(-1, 1)');
}
}
}
}
if ($width !== null && $height !== null) {
// We should change svg size (not scaling!), center existing stuff
$wrapper1->setAttribute('transform', 'translate('.(($width-24)/2).' '.(($height-24)/2).')');
$svg->setAttribute('viewBox', '0 0 '.$width.' '.$height);
$svg->setAttribute('width', $width);
$svg->setAttribute('height', $height);
}
if ($scaleWidth !== null && $scaleHeight !== null) {
$svg->setAttribute('preserveAspectRatio',"xMinYMin meet");
if ($width !== null && $height !== null) {
$svg->setAttribute('viewBox', '0 0 '.$width.' '.$height);
} else {
$svg->setAttribute('viewBox', "0 0 24 24");
}
$svg->setAttribute('width', $scaleWidth);
$svg->setAttribute('height', $scaleHeight);
}
$svgContent = $doc->saveXML();
}
}
}
}
if ($svgContent === null) {
$filepath = './svgicons/125-1.svg';
$svgContent = file_get_contents($filepath);
}
if (isset($_GET['format']) && $_GET['format'] == 'png') {
str_replace('#000000', '#010101', $svgContent);
$im = new Imagick();
// Hack to set needed density to get correct size?!
if ($width !== null && $height !== null) {
$im->setResolution($width*4,$height*4);
} else {
$im->setResolution(96,96);
}
$im->setBackgroundColor(new ImagickPixel('transparent'));
$im->readImageBlob($svgContent);
$im->setImageFormat("png32");
if ((!isset($scaleWidth) && !isset($scaleHeight)) || ($scaleWidth == null && $scaleHeight == null)
|| ($scaleWidth == 24 && $scaleHeight == 24)
|| ($scaleWidth == 64 && $scaleHeight == 64)
|| ($scaleWidth == 150 && $scaleHeight == 150)) {
$im->writeImage('./' . basename($_SERVER['REQUEST_URI']));
}
header('Pragma: public');
header('Cache-Control: max-age=86400, public');
header('Expires: '. gmdate('D, d M Y H:i:s \G\M\T', time() + 86400));
header('Content-type: image/png');
echo $im->getImageBlob();
$im->destroy();
} else {
header('Pragma: public');
header('Cache-Control: max-age=86400, public');
header('Expires: '. gmdate('D, d M Y H:i:s \G\M\T', time() + 86400));
header('Content-type: image/svg+xml');
echo $svgContent;
}
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