Add IGC example

2013-12-16 20:26:58 +01:00
parent 856a16b43e
commit d80c327515
7 changed files with 49973 additions and 0 deletions
@@ -0,0 +1,149 @@
+goog.require('ol.Attribution');
+goog.require('ol.Map');
+goog.require('ol.RendererHint');
+goog.require('ol.View2D');
+goog.require('ol.format.IGC');
+goog.require('ol.geom.LineString');
+goog.require('ol.geom.Point');
+goog.require('ol.layer.Tile');
+goog.require('ol.layer.Vector');
+goog.require('ol.proj');
+goog.require('ol.shape');
+goog.require('ol.source.OSM');
+goog.require('ol.source.Vector');
+goog.require('ol.style.Stroke');
+goog.require('ol.style.Style');
+
+
+var tracklogs = [
+  'data/igc/Clement-Latour.igc',
+  'data/igc/Damien-de-Baenst.igc',
+  'data/igc/Sylvain-Dhonneur.igc',
+  'data/igc/Tom-Payne.igc',
+  'data/igc/Ulrich-Prinz.igc'
+];
+
+var colors = {
+  'Clement Latour': 'rgba(0, 0, 255, 0.7)',
+  'Damien de Baesnt': 'rgba(0, 215, 255, 0.7)',
+  'Sylvain Dhonneur': 'rgba(0, 165, 255, 0.7)',
+  'Tom Payne': 'rgba(0, 255, 255, 0.7)',
+  'Ulrich Prinz': 'rgba(0, 215, 255, 0.7)'
+};
+
+var styleCache = {};
+var styleFunction = function(feature, resolution) {
+  var color = colors[feature.get('PLT')];
+  var styleArray = styleCache[color];
+  if (!styleArray) {
+    styleArray = [new ol.style.Style({
+      stroke: new ol.style.Stroke({
+        color: color,
+        lineCap: 'round',
+        lineJoin: 'round',
+        width: 3
+      })
+    })];
+    styleCache[color] = styleArray;
+  }
+  return styleArray;
+};
+
+var vectorSource = new ol.source.Vector();
+
+var map = new ol.Map({
+  layers: [
+    new ol.layer.Tile({
+      source: new ol.source.OSM({
+        attributions: [
+          new ol.Attribution({
+            html: 'All maps &copy; ' +
+                '<a href="http://www.opencyclemap.org/">OpenCycleMap</a>'
+          }),
+          ol.source.OSM.DATA_ATTRIBUTION
+        ],
+        url: 'http://{a-c}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png'
+      })
+    }),
+    new ol.layer.Vector({
+      source: vectorSource,
+      styleFunction: styleFunction
+    })
+  ],
+  renderer: ol.RendererHint.CANVAS,
+  target: 'map',
+  view: new ol.View2D({
+    center: [703365.7089403362, 5714629.865071137],
+    zoom: 9
+  })
+});
+
+
+var transform = ol.proj.getTransform('EPSG:4326', 'EPSG:3857');
+var i, ii;
+for (i = 0, ii = tracklogs.length; i < ii; ++i) {
+  $.get(tracklogs[i], function(data) {
+    var format = new ol.format.IGC();
+    var feature = format.readFeature(data);
+    feature.getGeometry().transform(transform);
+    vectorSource.addFeature(feature);
+  });
+}
+
+
+var point = null;
+var line = null;
+var displaySnap = function(coordinate) {
+  var closestFeature = vectorSource.getClosestFeatureToCoordinate(coordinate);
+  var info = document.getElementById('info');
+  if (closestFeature === null) {
+    point = null;
+    line = null;
+    info.innerHTML = '&nbsp;';
+  } else {
+    info.innerHTML = closestFeature.get('PLT');
+    var geometry = closestFeature.getGeometry();
+    var closestPoint = geometry.getClosestPoint(coordinate);
+    if (point === null) {
+      point = new ol.geom.Point(closestPoint);
+    } else {
+      point.setCoordinates(closestPoint);
+    }
+    if (line === null) {
+      line = new ol.geom.LineString([coordinate, closestPoint]);
+    } else {
+      line.setCoordinates([coordinate, closestPoint]);
+    }
+  }
+  map.requestRenderFrame();
+};
+
+$(map.getViewport()).on('mousemove', function(evt) {
+  var coordinate = map.getEventCoordinate(evt.originalEvent);
+  displaySnap(coordinate);
+});
+
+map.on('singleclick', function(evt) {
+  var coordinate = evt.getCoordinate();
+  displaySnap(coordinate);
+});
+
+var imageStyle = ol.shape.renderCircle(5, null, new ol.style.Stroke({
+  color: 'rgba(255,0,0,0.9)',
+  width: 1
+}));
+var strokeStyle = new ol.style.Stroke({
+  color: 'rgba(255,0,0,0.9)',
+  width: 1
+});
+map.on('postcompose', function(evt) {
+  var render = evt.getRender();
+  if (point !== null) {
+    render.setImageStyle(imageStyle);
+    render.drawPointGeometry(point);
+  }
+  if (line !== null) {
+    render.setFillStrokeStyle(null, strokeStyle);
+    render.drawLineStringGeometry(line);
+  }
+});