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delphine |
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<?php
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include_once("proj4php.php");
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$error = false;
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/**
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* Geometry-Points
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*/
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if( isset( $_GET['GEOM'] ) ) {
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list($x, $y) = explode( ' ', $_GET['GEOM'] );
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} else {
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if( isset( $_GET['x'] ) ) {
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$x = $_GET['x'];
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}
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else
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$error = true;
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if( isset( $_GET['y'] ) ) {
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$y = $_GET['y'];
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}
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else
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$error = true;
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}
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/**
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* Source-CRS
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*/
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if( isset( $_GET['SOURCECRS'] ) ) {
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$srcProjection = str_replace( '::', ':', $_GET['SOURCECRS'] );
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} else if( isset( $_GET['projectionxy'] ) ) {
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$srcProjection = $_GET['projectionxy'];
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$srcProjection = str_replace( '::', ':', $srcProjection );
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}
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else
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$srcProjection = 'EPSG:2154';
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/**
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* Target-CRS
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*/
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if( isset( $_GET['TARGETCRS'] ) ) {
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$tgtProjection = str_replace( '::', ':', $_GET['TARGETCRS'] );
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} else if( isset( $_GET['projection'] ) ) {
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$tgtProjection = $_GET['projection'];
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$tgtProjection = str_replace( '::', ':', $tgtProjection );
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}
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else
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$tgtProjection = 'EPSG:4326';
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/**
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* Format
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*/
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if( isset( $_GET['format'] ) ) {
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$format = $_GET['format'];
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if( !($format == 'xml' || $format == 'json') )
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$error = true;
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}
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else
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$format = 'xml';
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$proj4 = new Proj4php();
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$projsource = new Proj4phpProj( $srcProjection, $proj4 );
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$projdest = new Proj4phpProj( $tgtProjection, $proj4 );
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// check the projections
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if( Proj4php::$defs[$srcProjection] == Proj4php::$defs['WGS84'] && $srcProjection != 'EPSG:4326' )
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$error = true;
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if( Proj4php::$defs[$tgtProjection] == Proj4php::$defs['WGS84'] && $tgtProjection != 'EPSG:4326' )
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$error = true;
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if( $error === true ) {
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if( $format == 'json' ) {
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echo "{\"status\":\"error\", \"erreur\": {\"code\": 2, \"message\": \"Wrong parameters.\"} }";
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exit;
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} else {
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echo "<reponse>";
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echo " <erreur>";
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echo " <code>2</code>";
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echo " <message>Wrong parameters</message>";
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echo " </erreur>";
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echo "</reponse>";
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exit;
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}
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}
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$pointSrc = new proj4phpPoint( $x, $y );
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$pointDest = $proj4->transform( $projsource, $projdest, $pointSrc );
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$tgtProjection = str_replace( ':', '::', $tgtProjection );
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if( $format == 'json' ) {
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echo "{\"status\" :\"success\", \"point\" : {\"x\":" . $pointDest->x . ", \"y\":" . $pointDest->y . ",\"projection\" :\"" . $tgtProjection . "\"}}";
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exit;
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} else {
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header ("Content-Type:text/xml");
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echo "<reponse>";
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echo "<point>";
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echo "<x>" . $pointDest->x . "</x>";
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echo "<y>" . $pointDest->y . "</y>";
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echo "<projection>" . $tgtProjection . "</projection>";
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echo "</point>";
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echo "</reponse>";
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}
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