Lint free examples

examples/measure.js

@@ -96,7 +96,7 @@ var continueLineMsg = 'Click to continue drawing the line';
 
 /**
  * Handle pointer move.
- * @param {ol.MapBrowserEvent} evt
+ * @param {ol.MapBrowserEvent} evt The event.
  */
 var pointerMoveHandler = function(evt) {
   if (evt.dragging) {
@@ -140,6 +140,66 @@ var typeSelect = document.getElementById('type');
 var geodesicCheckbox = document.getElementById('geodesic');
 
 var draw; // global so we can remove it later
+
+
+/**
+ * Format length output.
+ * @param {ol.geom.LineString} line The line.
+ * @return {string} The formatted length.
+ */
+var formatLength = function(line) {
+  var length;
+  if (geodesicCheckbox.checked) {
+    var coordinates = line.getCoordinates();
+    length = 0;
+    var sourceProj = map.getView().getProjection();
+    for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
+      var c1 = ol.proj.transform(coordinates[i], sourceProj, 'EPSG:4326');
+      var c2 = ol.proj.transform(coordinates[i + 1], sourceProj, 'EPSG:4326');
+      length += wgs84Sphere.haversineDistance(c1, c2);
+    }
+  } else {
+    length = Math.round(line.getLength() * 100) / 100;
+  }
+  var output;
+  if (length > 100) {
+    output = (Math.round(length / 1000 * 100) / 100) +
+        ' ' + 'km';
+  } else {
+    output = (Math.round(length * 100) / 100) +
+        ' ' + 'm';
+  }
+  return output;
+};
+
+
+/**
+ * Format length output.
+ * @param {ol.geom.Polygon} polygon The polygon.
+ * @return {string} Formatted area.
+ */
+var formatArea = function(polygon) {
+  var area;
+  if (geodesicCheckbox.checked) {
+    var sourceProj = map.getView().getProjection();
+    var geom = /** @type {ol.geom.Polygon} */(polygon.clone().transform(
+        sourceProj, 'EPSG:4326'));
+    var coordinates = geom.getLinearRing(0).getCoordinates();
+    area = Math.abs(wgs84Sphere.geodesicArea(coordinates));
+  } else {
+    area = polygon.getArea();
+  }
+  var output;
+  if (area > 10000) {
+    output = (Math.round(area / 1000000 * 100) / 100) +
+        ' ' + 'km<sup>2</sup>';
+  } else {
+    output = (Math.round(area * 100) / 100) +
+        ' ' + 'm<sup>2</sup>';
+  }
+  return output;
+};
+
 function addInteraction() {
   var type = (typeSelect.value == 'area' ? 'Polygon' : 'LineString');
   draw = new ol.interaction.Draw({
@@ -186,7 +246,7 @@ function addInteraction() {
             output = formatArea(/** @type {ol.geom.Polygon} */ (geom));
             tooltipCoord = geom.getInteriorPoint().getCoordinates();
           } else if (geom instanceof ol.geom.LineString) {
-            output = formatLength( /** @type {ol.geom.LineString} */ (geom));
+            output = formatLength(/** @type {ol.geom.LineString} */ (geom));
             tooltipCoord = geom.getLastCoordinate();
           }
           measureTooltipElement.innerHTML = output;
@@ -195,7 +255,7 @@ function addInteraction() {
       }, this);
 
   draw.on('drawend',
-      function(evt) {
+      function() {
         measureTooltipElement.className = 'tooltip tooltip-static';
         measureTooltip.setOffset([0, -7]);
         // unset sketch
@@ -246,70 +306,10 @@ function createMeasureTooltip() {
 
 /**
  * Let user change the geometry type.
- * @param {Event} e Change event.
  */
-typeSelect.onchange = function(e) {
+typeSelect.onchange = function() {
   map.removeInteraction(draw);
   addInteraction();
 };
 
-
-/**
- * format length output
- * @param {ol.geom.LineString} line
- * @return {string}
- */
-var formatLength = function(line) {
-  var length;
-  if (geodesicCheckbox.checked) {
-    var coordinates = line.getCoordinates();
-    length = 0;
-    var sourceProj = map.getView().getProjection();
-    for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
-      var c1 = ol.proj.transform(coordinates[i], sourceProj, 'EPSG:4326');
-      var c2 = ol.proj.transform(coordinates[i + 1], sourceProj, 'EPSG:4326');
-      length += wgs84Sphere.haversineDistance(c1, c2);
-    }
-  } else {
-    length = Math.round(line.getLength() * 100) / 100;
-  }
-  var output;
-  if (length > 100) {
-    output = (Math.round(length / 1000 * 100) / 100) +
-        ' ' + 'km';
-  } else {
-    output = (Math.round(length * 100) / 100) +
-        ' ' + 'm';
-  }
-  return output;
-};
-
-
-/**
- * format length output
- * @param {ol.geom.Polygon} polygon
- * @return {string}
- */
-var formatArea = function(polygon) {
-  var area;
-  if (geodesicCheckbox.checked) {
-    var sourceProj = map.getView().getProjection();
-    var geom = /** @type {ol.geom.Polygon} */(polygon.clone().transform(
-        sourceProj, 'EPSG:4326'));
-    var coordinates = geom.getLinearRing(0).getCoordinates();
-    area = Math.abs(wgs84Sphere.geodesicArea(coordinates));
-  } else {
-    area = polygon.getArea();
-  }
-  var output;
-  if (area > 10000) {
-    output = (Math.round(area / 1000000 * 100) / 100) +
-        ' ' + 'km<sup>2</sup>';
-  } else {
-    output = (Math.round(area * 100) / 100) +
-        ' ' + 'm<sup>2</sup>';
-  }
-  return output;
-};
-
 addInteraction();