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<?
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// $Id: track.gpx.inc,v 1.4 2006/11/10 22:04:55 gaby Exp $
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class GPX_file {
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var $coordonnees = array();
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var $catData = "";
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var $catDataTime = "";
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var $currentTag = "";
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var $count = 0;
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var $ZMax = -1;
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var $GPXfile = "";
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function debutElement($parser, $name, $attrs)
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{
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$this->currentTag = $name;
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if ($name == "TRKPT") {
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$this->coordonnees[$this->count][0] = $attrs["LAT"];
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$this->coordonnees[$this->count][1] = $attrs["LON"];
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$this->count++;
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}
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}
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function characterData($parser, $data)
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{
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if ($this->currentTag == "ELE") {
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$this->catData .= trim($data);
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}
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if ($this->currentTag == "TIME") {
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$this->catDataTime .= trim($data);
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}
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}
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function getZMax() {
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return $ZMax;
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}
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function finElement($parser, $name)
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{
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if ($name = "ELE") {
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if ($this->catData != "") {
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$ZMax = max($ZMax, $this->catData);
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$this->coordonnees[$this->count-1][2] = $this->catData;
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}
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}
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if ($name = "TIME") {
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if ($this->catDataTime != "") {
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$this->coordonnees[$this->count-1][3] = $this->catDataTime;
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}
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}
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unset($this->catData);
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$this->catData = "";
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unset($this->catDataTime);
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$this->catDataTime = "";
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}
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function DenivelePositif() {
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$denivp = 0;
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$z = $this->ZArray();
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for ($i=1; $i<count($z); $i++) {
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if (($z[$i] - $z[$i-1])>0)
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{
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$denivp += ($z[$i] - $z[$i-1]);
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}
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}
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return $denivp;
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}
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function DeniveleNegatif() {
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$denivm = 0;
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$z = $this->ZArray();
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for ($i=1; $i<count($z); $i++) {
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if (($z[$i] - $z[$i-1])<0)
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$denivm += ($z[$i] - $z[$i-1]);
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}
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return $denivm;
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}
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function XArray() {
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$res = array();
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$r = 6378;
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$pi = atan2(1,1) * 4;
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$dist = 0;
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$res[] = 0;
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for ($i=1; $i<$this->count; $i++) {
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$a1 = $this->coordonnees[$i-1][0] * ($pi/180);
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$a2 = $this->coordonnees[$i][0] * ($pi/180);
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$b1 = $this->coordonnees[$i-1][1] * ($pi/180);
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$b2 = $this->coordonnees[$i][1] * ($pi/180);
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if ( ($a1==$a2) && ($b1==$b2) )
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$delta = 0;
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else
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{
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$toacos = cos($a1)*cos($b1)*cos($a2)*cos($b2) + cos($a1)*sin($b1)*cos($a2)*sin($b2) + sin($a1)*sin($a2);
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if ($toacos > 1)
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$delta = 0;
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else
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$delta = acos($toacos) * $r;
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}
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$dist += $delta;
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$res[] = $dist;
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}
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return $res;
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}
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function Pentes() {
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$res = array();
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for ($i=0; $i<41; $i++) {
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$res[] = $i-20;
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}
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return $res;
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}
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function RepartitionPentes() {
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$datax = $this->XArray();
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$datay = $this->ZArray();
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$res = array();
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for ($i=0; $i<41; $i++) {
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$res[] = 0;
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}
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for ($i=1; $i<count($datax); $i++) {
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$distance = ($datax[$i] - $datax[$i - 1]) * 1000;
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$dz = $datay[$i] - $datay[$i - 1];
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if ($distance>0) {
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$pente = (100 * $dz) / $distance;
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if ($pente<-20) {
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$res[0] += $distance;
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} else
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if ($pente>20) {
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$res[40] += $distance;
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} else
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{
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$ires = round($pente + 20);
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$res[$ires] += $distance;
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}
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}
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}
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for ($i=0; $i<41; $i++) {
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$res[$i] = $res[$i] / 1000;
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}
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return $res;
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}
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function FilterValue($valuearray) {
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sort($valuearray, SORT_NUMERIC);
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$newarray = array();
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for ($i=1; $i<count($valuearray)-1; $i++) {
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$newarray[] = $valuearray[$i];
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}
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return array_sum($newarray)/count($newarray);
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}
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function FilterArray($anarray) {
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$res = array();
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if (count($anarray)>5) {
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for ($i=0; $i<5; $i++) {
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$res[] = $anarray[$i];
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}
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for ($i=5; $i<count($anarray); $i++) {
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$res[] = $this->FilterValue( array($anarray[$i-5], $anarray[$i-4], $anarray[$i-3], $anarray[$i-2], $anarray[$i-1], $anarray[$i]) );
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}
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}
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else
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$res = $anarray;
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return $res;
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}
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function ZArray() {
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$res = array();
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for ($i=0; $i<$this->count; $i++) {
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$res[] = $this->coordonnees[$i][2];
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}
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return $this->FilterArray($res);
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}
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function Longueur() {
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$r = 6378;
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$pi = atan2(1,1) * 4;
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$dist = 0;
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for ($i=1; $i<$this->count; $i++) {
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$a1 = $this->coordonnees[$i-1][0] * ($pi/180);
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$a2 = $this->coordonnees[$i][0] * ($pi/180);
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$b1 = $this->coordonnees[$i-1][1] * ($pi/180);
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$b2 = $this->coordonnees[$i][1] * ($pi/180);
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if ( ($a1==$a2) && ($b1==$b2) )
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$delta = 0;
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else
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{
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$toacos = cos($a1)*cos($b1)*cos($a2)*cos($b2) + cos($a1)*sin($b1)*cos($a2)*sin($b2) + sin($a1)*sin($a2);
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if ($toacos > 1)
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$delta = 0;
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else
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$delta = acos($toacos) * $r;
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}
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$dist += $delta;
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}
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return $dist;
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}
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function XMLforProfile() {
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$datax = $this->XArray();
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$datay = $this->ZArray();
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$n = count($datax);
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$ymin = 100000;
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$ymax = -100000;
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for ($i=0; $i<($n-1); $i++) {
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$ymin = min($ymin, $datay[$i]);
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$ymax = max($ymax, $datay[$i]);
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}
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echo "<graph caption='".t("Profile")."' xaxisname='".t("Distance")."' yaxisname='".t("Altitude")."' ";
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echo "showAreaBorder='0' lineThickness='1' numdivlines='10' numVDivLines='10' showgridbg='1' showhovercap='1' ";
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echo "showVerLines='0' hoverCapSepChar=' ' yaxisminvalue='".$ymin."' yaxismaxvalue='".$ymax."' anchorScale='0' showNames='1' showValues='0' animation='0'>\n";
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$ndata = 200;
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$step = ($datax[$n-1])/$ndata;
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// echo $step;
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$curindex = 0;
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$values = array();
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$xvalues = array();
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for ($i=0; $i<($ndata-1); $i++) {
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$xmin = $i * $step;
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$xmax = ($i+1) * $step;
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$index = $curindex;
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// echo $i." ".$xmin." ".$xmax." ".."\n";
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while (($datax[$index] < $xmax) && ($index<$n))
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$index++;
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$val = 0;
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$valn = 0;
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$maxv = -10000;
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$minv = 25000;
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for ($j=$curindex; $j<$index; $j++) {
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$val+=$datay[$j];
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$maxv = max($maxv, $datay[$j]);
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$minv = min($minv, $datay[$j]);
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$valn++;
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}
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if ($valn>0) {
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$vavg = $val / $valn;
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$deltamin = $vavg - $minv;
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$deltamax = $maxv - $vavg;
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$currentval = $vavg;
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if (max($deltamin, $deltamax)>15) {
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if ($deltamin>$deltamax)
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$currentval = $minv;
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else
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$currentval = $maxv;
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}
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$values[] = $currentval;
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$xvalues[] = $xmin;
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$curindex = $index;
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}
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}
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$values[] = $datay[$n-1];
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$xvalues[] = $datax[$n-1];
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for ($i=0; $i<count($values); $i++) {
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if (($i==0) || ($i==(count($values)-1)))
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echo "\n<set name='".sprintf('%2.2f',$xvalues[$i])."' value='".$values[$i]."' showName='1'/>";
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else
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echo "\n<set value='".$values[$i]."' showName='0'/>";
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}
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echo "</graph>";
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}
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function XMLforRepartition() {
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/*
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<graph bgcolor='e1f5ff' canvasbgcolor="FFFFFF" caption='Decline in Net Interest Margins of Asian Banks (1995-2001)' subCaption='(in Percentage %)' yaxismaxvalue="2" yaxisminvalue='-2.5' yaxisname='Points' xaxisname='Country' gridbgcolor='f1f1f1' hovercapbg='FFFFDD' hovercapborder='000000' numdivlines='4' divlinecolor='999999' zeroPlaneColor="333333" zeroPlaneAlpha='40' numberSuffix=' %'>
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<set name='Taiwan' value='-0.33' color='F23456'/>
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<set name='Malaysia' value='-0.27' color='FF6600'/>
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<set name='Hong Kong' value='0.40' color='009966' alpha='70'/>
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<set name='Philippines' value='0.6' color='CC3399'/>
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<set name='Singapore' value='-0.8' color='FFCC33' alpha='70'/>
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<set name='Thailand' value='-2.2' color='F23456'/>
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<set name='India' value='1.2' color='FF6600'/>
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<trendlines>
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<line value='0.8' displayValue='Good' color='FF0000' thickness='1'/>
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<line value='-0.4' displayValue='Bad' color='009999' thickness='1'/>
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</trendlines>
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</graph>
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*/
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echo "<graph caption='".t("Histogram")."' subCaption='' yaxisname='".t("Distance")."' xaxisname='".t("Difficulty")."' ynumdivlines='4' numberSuffix=' km'>";
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$trans = get_html_translation_table(HTML_ENTITIES);
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$l = $this->Longueur();
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$datax = $this->Pentes();
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$datay = $this->RepartitionPentes();
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$tot = 0;
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for ($i=0; $i<10; $i++) {
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$tot += $datay[$i];
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}
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echo "<set name='".t("Steep descent")."' value='".$tot."' />"; //<-10%
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$tot = 0;
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for ($i=10; $i<19; $i++) {
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$tot += $datay[$i];
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}
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echo "<set name='".t("Descent")."' value='".$tot."' />"; //(entre -10% et -2%)
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$tot = 0;
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for ($i=19; $i<22; $i++) {
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$tot += $datay[$i];
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}
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echo "<set name='".t("Flat")."' value='".$tot."' />"; // (entre -2% et 2%)
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| 347 |
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| 348 |
$tot = 0;
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| 349 |
for ($i=22; $i<31; $i++) {
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| 350 |
$tot += $datay[$i];
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| 351 |
}
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echo "<set name='".t("Ascent")."' value='".$tot."' />"; //(entre 2% et 10%)
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| 354 |
$tot = 0;
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for ($i=31; $i<41; $i++) {
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| 356 |
$tot += $datay[$i];
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}
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echo "<set name='".t("Steep ascent")."' value='".$tot."' />"; //(>10%)
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echo "</graph>";
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}
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| 362 |
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| 363 |
function htmlentities2unicodeentities ($input) {
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| 364 |
$htmlEntities = array_values (get_html_translation_table (HTML_ENTITIES, ENT_QUOTES));
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| 365 |
$entitiesDecoded = array_keys (get_html_translation_table (HTML_ENTITIES, ENT_QUOTES));
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| 366 |
$num = count ($entitiesDecoded);
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| 367 |
for ($u = 0; $u < $num; $u++) {
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| 368 |
$utf8Entities[$u] = '&#'.ord($entitiesDecoded[$u]).';';
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| 369 |
}
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| 370 |
return str_replace ($htmlEntities, $utf8Entities, $input);
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| 371 |
}
|
| 372 |
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| 373 |
function PointsForGoogleMaps($npoints) {
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| 374 |
$points = array();
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| 375 |
$step = max(1, floor(count($this->coordonnees) / $npoints));
|
| 376 |
|
| 377 |
$j=0;
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| 378 |
for ($i=0; $i<$this->count; $i++) {
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| 379 |
if ($i % $step < 1) {
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| 380 |
$points[$j][1] = $this->coordonnees[$i][0];
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| 381 |
$points[$j][0] = $this->coordonnees[$i][1];
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| 382 |
$j++;
|
| 383 |
}
|
| 384 |
}
|
| 385 |
|
| 386 |
return $points;
|
| 387 |
}
|
| 388 |
|
| 389 |
function ConvertToKML() {
|
| 390 |
header('Content-Type: application/vnd.google-earth.kml+xml');
|
| 391 |
header('Content-Disposition: attachment; filename="'.substr($this->GPXfile, 0, -4).'.kml"');
|
| 392 |
echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>";
|
| 393 |
?>
|
| 394 |
<kml xmlns="http://earth.google.com/kml/2.1">
|
| 395 |
<Document>
|
| 396 |
<name><? echo $this->GPXfile; ?></name>
|
| 397 |
<open>1</open>
|
| 398 |
<Style id="lineStyle">
|
| 399 |
<LineStyle>
|
| 400 |
<color>6422FF22</color>
|
| 401 |
<width>4</width>
|
| 402 |
</LineStyle>
|
| 403 |
</Style>
|
| 404 |
<Folder>
|
| 405 |
<open>1</open>
|
| 406 |
<name><? echo $this->GPXfile; ?></name>
|
| 407 |
<Placemark>
|
| 408 |
<visibility>1</visibility>
|
| 409 |
<name><? echo $this->GPXfile; ?></name>
|
| 410 |
<Style>
|
| 411 |
<IconStyle>
|
| 412 |
<Icon>
|
| 413 |
<href>root://icons/palette-4.png</href>
|
| 414 |
<y>32</y>
|
| 415 |
<w>32</w>
|
| 416 |
<h>32</h>
|
| 417 |
</Icon>
|
| 418 |
</IconStyle>
|
| 419 |
</Style>
|
| 420 |
<Point>
|
| 421 |
<extrude>1</extrude>
|
| 422 |
<coordinates><? echo $this->coordonnees[0][1].",".$this->coordonnees[0][0].",0"; ?></coordinates>
|
| 423 |
</Point>
|
| 424 |
<description><? echo $this->htmlentities2unicodeentities(t("Length")." : ". sprintf('%2.2f', $this->Longueur()) ."km <br> ".t("D+")." : ". sprintf('%2.0f', $this->DenivelePositif()) ."m / ".t("D-")." : ". sprintf('%2.0f', $this->DeniveleNegatif()) ."m"); ?></description>
|
| 425 |
</Placemark>
|
| 426 |
<Placemark>
|
| 427 |
<name>Path</name>
|
| 428 |
<styleUrl>#lineStyle</styleUrl>
|
| 429 |
<LineString>
|
| 430 |
<tessellate>1</tessellate>
|
| 431 |
<coordinates>
|
| 432 |
<?
|
| 433 |
for ($i=0; $i<count($this->coordonnees) - 1; $i++) {
|
| 434 |
?>
|
| 435 |
<? echo $this->coordonnees[$i][1].",".$this->coordonnees[$i][0].",0"; ?>
|
| 436 |
<?
|
| 437 |
}
|
| 438 |
?>
|
| 439 |
</coordinates>
|
| 440 |
</LineString>
|
| 441 |
</Placemark>
|
| 442 |
</Folder>
|
| 443 |
</Document>
|
| 444 |
</kml>
|
| 445 |
<?
|
| 446 |
}
|
| 447 |
|
| 448 |
function ConvertToTRK() {
|
| 449 |
|
| 450 |
header('Content-Disposition: attachment; filename="'.substr($this->GPXfile, 0, -4).'.trk"');
|
| 451 |
?>
|
| 452 |
|
| 453 |
H SOFTWARE NAME & VERSION
|
| 454 |
I PCX5 2.09
|
| 455 |
|
| 456 |
H R DATUM IDX DA DF DX DY DZ
|
| 457 |
M G WGS 84 121 +0.000000e+000 +0.000000e+000 +0.000000e+000 +0.000000e+000 +0.000000e+000
|
| 458 |
|
| 459 |
H COORDINATE SYSTEM
|
| 460 |
U LAT LON DEG
|
| 461 |
|
| 462 |
H LATITUDE LONGITUDE DATE TIME ALT ;track
|
| 463 |
<?php
|
| 464 |
for ($i=0; $i<$this->count; $i++) {
|
| 465 |
$lat = $this->coordonnees[$i][0];
|
| 466 |
$lon = $this->coordonnees[$i][1];
|
| 467 |
$alt = abs($this->coordonnees[$i][2]);
|
| 468 |
printf('T ');
|
| 469 |
//T N47.5118714 W002.2987803 19-OCT-03 08:46:25 00038
|
| 470 |
|
| 471 |
if ($lat>0) {
|
| 472 |
printf('N', $lat);
|
| 473 |
}
|
| 474 |
else
|
| 475 |
{
|
| 476 |
$lat = - $lat;
|
| 477 |
printf('S', $lat);
|
| 478 |
}
|
| 479 |
|
| 480 |
printf('%02d', $lat);
|
| 481 |
printf('.');
|
| 482 |
// 0.5118714 -> 5118714
|
| 483 |
printf('%07d', ($lat - floor($lat)) * 10000000);
|
| 484 |
|
| 485 |
printf(' ');
|
| 486 |
|
| 487 |
if ($lon>0) {
|
| 488 |
printf('E', $lon);
|
| 489 |
}
|
| 490 |
else
|
| 491 |
{
|
| 492 |
$lon = - $lon;
|
| 493 |
printf('W', $lon);
|
| 494 |
}
|
| 495 |
|
| 496 |
printf('%03d', $lon);
|
| 497 |
printf('.');
|
| 498 |
// 0.5118714 -> 5118714
|
| 499 |
printf('%07d', ($lon - floor($lon)) * 10000000);
|
| 500 |
|
| 501 |
$datetime = $this->coordonnees[$i][3];
|
| 502 |
// 2005-10-29T11:00:49Z -> 30-DEC-99 00:00:00
|
| 503 |
$annee = substr($datetime, 0, 4);
|
| 504 |
$mois = substr($datetime, 5, 2);
|
| 505 |
$jour = substr($datetime, 8, 2);
|
| 506 |
$heure = substr($datetime, 11, 2);
|
| 507 |
$minute = substr($datetime, 14, 2);
|
| 508 |
$seconde = substr($datetime, 17, 2);
|
| 509 |
$dt = mktime($heure, $minute, $seconde, $mois, $jour, $annee);
|
| 510 |
printf(" ".strtoupper(date("d-M-y H:i:s", $dt))." ");
|
| 511 |
printf('%05d', $alt);
|
| 512 |
printf("\n");
|
| 513 |
}
|
| 514 |
}
|
| 515 |
|
| 516 |
function getInfos(&$latstart,&$lonstart,&$latmin,&$latmax,&$lonmin,&$lonmax,&$length,&$dzminu,&$dzplus,&$zmin,&$zmax) {
|
| 517 |
$length = $this->Longueur();
|
| 518 |
$dzplus = $this->DenivelePositif();
|
| 519 |
$dzminu = $this->DeniveleNegatif();
|
| 520 |
|
| 521 |
$latmin = 200.0;
|
| 522 |
$lonmin = 200.0;
|
| 523 |
$zmin = 20000.0;
|
| 524 |
|
| 525 |
$latmax = -200.0;
|
| 526 |
$lonmax = -200.0;
|
| 527 |
$zmax = -20000.0;
|
| 528 |
|
| 529 |
$latstart = 0.0;
|
| 530 |
$lonstart = 0.0;
|
| 531 |
|
| 532 |
for ($i=0; $i<$this->count; $i++) {
|
| 533 |
$lat = $this->coordonnees[$i][0];
|
| 534 |
$lon = $this->coordonnees[$i][1];
|
| 535 |
$alt = $this->coordonnees[$i][2];
|
| 536 |
|
| 537 |
$latstart += $lat;
|
| 538 |
$lonstart += $lon;
|
| 539 |
|
| 540 |
$latmin = min($latmin, $lat);
|
| 541 |
$lonmin = min($lonmin, $lon);
|
| 542 |
$zmin = min($zmin, $alt);
|
| 543 |
|
| 544 |
$latmax = max($latmax, $lat);
|
| 545 |
$lonmax = max($lonmax, $lon);
|
| 546 |
$zmax = max($zmax, $alt);
|
| 547 |
}
|
| 548 |
$latstart = (1.0*$latstart) / (1.0*$this->count);
|
| 549 |
$lonstart = (1.0*$lonstart) / (1.0*$this->count);
|
| 550 |
}
|
| 551 |
|
| 552 |
function LoadFromFile($filename) {
|
| 553 |
$this->GPXfile = basename($filename);
|
| 554 |
$xml_parser = xml_parser_create();
|
| 555 |
xml_set_element_handler($xml_parser, array(&$this,"debutElement"), array(&$this,"finElement"));
|
| 556 |
xml_set_character_data_handler($xml_parser, array(&$this,"characterData"));
|
| 557 |
if (!($fp = fopen($filename, "r"))) {
|
| 558 |
die("Can't open file: ".$filename);
|
| 559 |
}
|
| 560 |
|
| 561 |
while ($data = fread($fp, 4096)) {
|
| 562 |
if (!xml_parse($xml_parser, $data, feof($fp))) {
|
| 563 |
die(sprintf("erreur XML : %s à la ligne %d",
|
| 564 |
xml_error_string(xml_get_error_code($xml_parser)),
|
| 565 |
xml_get_current_line_number($xml_parser)));
|
| 566 |
}
|
| 567 |
}
|
| 568 |
xml_parser_free($xml_parser);
|
| 569 |
}
|
| 570 |
|
| 571 |
}
|
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