measuretool-googlemaps-v3 - npm Package Compare versions

Comparing version 0.1.4 to 0.2.0

docs/CHANGES.md

 # Changes
+## v0.2.0
+*Released on 07/02/2018*
+- **[Enhancement]** Added new unit - **Nautical Miles (NM)** Details see [PR #40](https://github.com/zhenyanghua/MeasureTool-GoogleMaps-V3/pull/40).
+
 ## v0.1.4
 *Released on 03/21/2018*
-- **[Bug Fix]** Fixed an newly introduced initialization bug caused from v0.1.2. Details see [#34](https://github.com/zhenyanghua/MeasureTool-GoogleMaps-V3/issues/34).
+- **[Bug Fix]** Fixed a newly introduced initialization bug caused from v0.1.2. Details see [#34](https://github.com/zhenyanghua/MeasureTool-GoogleMaps-V3/issues/34).
 
@@ -6,0 +10,0 @@ ## v0.1.2

docs/GUIDE.md

 # Developer Guide
+#### Demo
+[Live Demo](https://www.leafyjava.com/projects/measuretool) hosted on LeafyJava.com
+
 #### Dependency
@@ -32,1 +35,18 @@ Make sure the **`geometry`** library is referenced in the **Google Maps JavaScript API** loading script.
 ```
+
+#### Use with Google Geometry
+When using this measure tool with Google geometries, if the geometry is interactive and has mouse events, use the following pattern could make them work nicely together.
+
+```javascript
+var polygon = new Google.maps.Polygon({
+  clickable: true,
+  // other options...
+});
+
+measureTool.addListener('measure_start', function() {
+  polygon.setOptions({clickable: false});
+});
+measureTool.addListener('measure_end', function() {
+  polygon.setOptions({clickable: true});
+});
+```

lib/MeasureTool.min.js

@@ -1,1 +0,1 @@
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t._updateSegment(e)});e.enter().append("line").attr("class","base-line").attr("x1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[0]}).attr("y1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[1]}).attr("x2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[0]}).attr("y2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[1]}).each(function(e){return t._updateSegment(e)}),e.exit().remove();var n=this._linesAux.selectAll("line").data(this._geometry?this._geometry.lines:[]).attr("class","aux-line").attr("x1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[0]}).attr("y1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[1]}).attr("x2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[0]}).attr("y2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[1]}).on("mousemove",function(e){var n=x.default.findTouchPoint([t._projectionUtility.latLngToSvgPoint(e[0]),t._projectionUtility.latLngToSvgPoint(e[1])],[p.event.offsetX,p.event.offsetY]);t._updateHoverCirclePosition(n[0],n[1])}).on("mouseout",function(e){return t._hideHoverCircle()}).on("mousedown",function(){return t._hideTooltip()}).call(this._onDragLine());n.enter().append("line").attr("class","aux-line").attr("x1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[0]}).attr("y1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[1]}).attr("x2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[0]}).attr("y2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[1]}).on("mousemove",function(e){var n=x.default.findTouchPoint([t._projectionUtility.latLngToSvgPoint(e[0]),t._projectionUtility.latLngToSvgPoint(e[1])],[p.event.offsetX,p.event.offsetY]);t._updateHoverCirclePosition(n[0],n[1])}).on("mouseout",function(e){return 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t._helper.formatLength(t._helper.computeLengthBetween(e[0],e[1]))}),e.exit().remove()}},{key:"_updateNodeText",value:function(){var t=this,e=this._nodeText.selectAll("text").data(this._geometry?this._geometry.nodes:[]).attr("class",function(t,e){return 0===e?"node-measure-text head-text":"node-measure-text"}).attr("text-anchor","middle").attr("dominant-baseline","text-after-edge").attr("x",function(e){return t._projectionUtility.latLngToSvgPoint(e)[0]}).attr("y",this._transformNodeTextY.bind(this)).text(function(e,n){var i=t._helper.computePathLength(t._geometry.nodes.slice(0,n+1));return n===t._geometry.nodes.length-1&&(t._length=i),t._helper.formatLength(i)});e.enter().append("text").attr("class",function(t,e){return 0===e?"node-measure-text head-text":"node-measure-text"}).attr("text-anchor","middle").attr("dominant-baseline","text-after-edge").attr("x",function(e){return t._projectionUtility.latLngToSvgPoint(e)[0]}).attr("y",this._transformNodeTextY.bind(this)).text(function(e,n){var i=t._helper.computePathLength(t._geometry.nodes.slice(0,n+1));return n===t._geometry.nodes.length-1&&(t._length=i),t._helper.formatLength(i)}),e.exit().remove()}},{key:"_onOverCircle",value:function(t,e,n){this._dragging||((0,p.select)(n).attr("r",6),this._options.tooltip&&this._tooltip.show(this._projectionUtility.latLngToContainerPoint(t),0===e?u.Config.tooltipText2:u.Config.tooltipText1))}},{key:"_onOutCircle",value:function(t,e){(0,p.select)(e).attr("r",5),this._hideTooltip()}},{key:"_onDragCircle",value:function(){var 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t=this,e=!1,n=(0,m.drag)().on("drag",function(n,i){t._dragging=!0,e||(e=!0,t._geometry.insertNode(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])),t._updateLine(),t._options.showSegmentLength&&t._updateSegmentText(),t._options.showAccumulativeLength&&t._updateNodeText()),t._updateHoverCirclePosition(p.event.x,p.event.y),t._updateLinePosition(t._linesBase,i+1),t._updateLinePosition(t._linesAux,i+1),t._options.showSegmentLength&&t._updateSegmentTextPosition(i+1),t._options.showAccumulativeLength&&t._updateNodeTextPosition(i+1),t._updateArea(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y]))});return n.on("start",function(){p.event.sourceEvent.stopPropagation(),t._hoverCircle.select("circle").attr("class","cover-circle"),t._disableMapScroll()}),n.on("end",function(n,i){t._enableMapScroll(),e&&(t._geometry.updateNode(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])),t._hideHoverCircle(),t._overlay.draw(),e=!1,t._showTooltipOnEvent(u.Config.tooltipText1)),t._updateArea(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])),t._hoverCircle.select("circle").attr("class","grey-circle"),t._dragging=!1}),n}},{key:"_updateLinePosition",value:function(t,e){e<this._geometry.lines.length&&t.select("line:nth-child("+(e+1)+")").attr("x1",p.event.x).attr("y1",p.event.y),e>0&&t.select("line:nth-child("+e+")").attr("x2",p.event.x).attr("y2",p.event.y)}},{key:"_updateSegmentTextPosition",value:function(t){var e=this;t<this._geometry.lines.length&&this._segmentText.select("text:nth-child("+(t+1)+")").attr("transform",function(t){var 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t=this;this._map.addListener("rightclick",function(e){t._firstClick=e,t._contextMenu.show(t._projection.fromLatLngToContainerPixel(e.latLng))}),document.addEventListener("keydown",function(e){27===e.which&&t._contextMenu.hide()}),this._containerDiv.addEventListener("mousedown",function(e){e.clientX>=t._contextMenu.left&&e.clientX<=t._contextMenu.left+t._contextMenu.width&&e.clientY>=t._contextMenu.top&&e.clientY<=t._contextMenu.top+t._contextMenu.height||t._contextMenu.hide()})}},{key:"start",value:function(){var t=this;this._started||(this._overlay.setMap(this._map),this._geometry=new v.Geometry,this._segments=[],this._options.contextMenu&&this._firstClick&&(this._checkClick(this._firstClick),this._contextMenu.toggleItems([this._endElementNode],[this._startElementNode])),this._mapClickEvent=this._map.addListener("click",function(e){return t._checkClick(e)}),this._mapZoomChangedEvent=this._map.addListener("zoom_changed",function(){return 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e=[t.latLng.lng(),t.latLng.lat()];this._geometry.addNode(e),this._overlay.draw()}this._dragged=!1}},{key:"_updateCircles",value:function(){var t=this,e=this;this._nodeCircles.selectAll("circle").data(this._geometry?this._geometry.nodes:[]).attr("class",function(t,e){return 0===e?"cover-circle head-circle":"cover-circle"}).attr("r",5).attr("cx",function(e){return t._projectionUtility.latLngToSvgPoint(e)[0]}).attr("cy",function(e){return t._projectionUtility.latLngToSvgPoint(e)[1]}).on("mouseover",function(t,n){e._onOverCircle(t,n,this)}).on("mouseout",function(t){e._onOutCircle(t,this)}).on("touchstart",function(t,n){e._onOverCircle(t,n,this)}).on("touchleave",function(t){e._onOutCircle(t,this)}).on("mousedown",function(){return t._hideTooltip()}).call(this._onDragCircle()).enter().append("circle").attr("class","cover-circle").attr("r",5).attr("cx",function(e){return t._projectionUtility.latLngToSvgPoint(e)[0]}).attr("cy",function(e){return t._projectionUtility.latLngToSvgPoint(e)[1]}).on("mouseover",function(t,n){e._onOverCircle(t,n,this)}).on("mouseout",function(t){e._onOutCircle(t,this)}).on("touchstart",function(t,n){e._onOverCircle(t,n,this)}).on("touchleave",function(t){e._onOutCircle(t,this)}).on("mousedown",function(){return t._hideTooltip()}).call(this._onDragCircle()),this._nodeCircles.selectAll(".removed-circle").remove()}},{key:"_updateLine",value:function(){var t=this;this._segments=[];var e=this._linesBase.selectAll("line").data(this._geometry?this._geometry.lines:[]).attr("class","base-line").attr("x1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[0]}).attr("y1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[1]}).attr("x2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[0]}).attr("y2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[1]}).each(function(e){return t._updateSegment(e)});e.enter().append("line").attr("class","base-line").attr("x1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[0]}).attr("y1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[1]}).attr("x2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[0]}).attr("y2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[1]}).each(function(e){return t._updateSegment(e)}),e.exit().remove();var n=this._linesAux.selectAll("line").data(this._geometry?this._geometry.lines:[]).attr("class","aux-line").attr("x1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[0]}).attr("y1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[1]}).attr("x2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[0]}).attr("y2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[1]}).on("mousemove",function(e){var n=x.default.findTouchPoint([t._projectionUtility.latLngToSvgPoint(e[0]),t._projectionUtility.latLngToSvgPoint(e[1])],[p.event.offsetX,p.event.offsetY]);t._updateHoverCirclePosition(n[0],n[1])}).on("mouseout",function(e){return t._hideHoverCircle()}).on("mousedown",function(){return t._hideTooltip()}).call(this._onDragLine());n.enter().append("line").attr("class","aux-line").attr("x1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[0]}).attr("y1",function(e){return t._projectionUtility.latLngToSvgPoint(e[0])[1]}).attr("x2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[0]}).attr("y2",function(e){return t._projectionUtility.latLngToSvgPoint(e[1])[1]}).on("mousemove",function(e){var n=x.default.findTouchPoint([t._projectionUtility.latLngToSvgPoint(e[0]),t._projectionUtility.latLngToSvgPoint(e[1])],[p.event.offsetX,p.event.offsetY]);t._updateHoverCirclePosition(n[0],n[1])}).on("mouseout",function(e){return t._hideHoverCircle()}).on("mousedown",function(){return t._hideTooltip()}).call(this._onDragLine()),n.exit().remove()}},{key:"_updateSegmentText",value:function(){var t=this,e=this._segmentText.selectAll("text").data(this._geometry?this._geometry.lines:[]).attr("class","segment-measure-text").attr("text-anchor","middle").attr("dominant-baseline","text-before-edge").attr("transform",function(e){var n=t._projectionUtility.latLngToSvgPoint(e[0]),i=t._projectionUtility.latLngToSvgPoint(e[1]);return x.default.transformText(n,i)}).text(function(e,n){return t._helper.formatLength(t._helper.computeLengthBetween(e[0],e[1]))});e.enter().append("text").attr("class","segment-measure-text").attr("text-anchor","middle").attr("dominant-baseline","text-before-edge").attr("transform",function(e){var n=t._projectionUtility.latLngToSvgPoint(e[0]),i=t._projectionUtility.latLngToSvgPoint(e[1]);return x.default.transformText(n,i)}).text(function(e,n){return t._helper.formatLength(t._helper.computeLengthBetween(e[0],e[1]))}),e.exit().remove()}},{key:"_updateNodeText",value:function(){var t=this,e=this._nodeText.selectAll("text").data(this._geometry?this._geometry.nodes:[]).attr("class",function(t,e){return 0===e?"node-measure-text head-text":"node-measure-text"}).attr("text-anchor","middle").attr("dominant-baseline","text-after-edge").attr("x",function(e){return t._projectionUtility.latLngToSvgPoint(e)[0]}).attr("y",this._transformNodeTextY.bind(this)).text(function(e,n){var i=t._helper.computePathLength(t._geometry.nodes.slice(0,n+1));return n===t._geometry.nodes.length-1&&(t._length=i),t._helper.formatLength(i)});e.enter().append("text").attr("class",function(t,e){return 0===e?"node-measure-text head-text":"node-measure-text"}).attr("text-anchor","middle").attr("dominant-baseline","text-after-edge").attr("x",function(e){return t._projectionUtility.latLngToSvgPoint(e)[0]}).attr("y",this._transformNodeTextY.bind(this)).text(function(e,n){var i=t._helper.computePathLength(t._geometry.nodes.slice(0,n+1));return n===t._geometry.nodes.length-1&&(t._length=i),t._helper.formatLength(i)}),e.exit().remove()}},{key:"_onOverCircle",value:function(t,e,n){this._dragging||((0,p.select)(n).attr("r",6),this._options.tooltip&&this._tooltip.show(this._projectionUtility.latLngToContainerPoint(t),0===e?u.Config.tooltipText2:u.Config.tooltipText1))}},{key:"_onOutCircle",value:function(t,e){(0,p.select)(e).attr("r",5),this._hideTooltip()}},{key:"_onDragCircle",value:function(){var t=this,e=!1,n=(0,m.drag)().on("drag",function(n,i){e=!0,t._dragging=!0,(0,p.select)(this).attr("cx",p.event.x).attr("cy",p.event.y),t._updateLinePosition.call(t,t._linesBase,i),t._updateLinePosition.call(t,t._linesAux,i),t._options.showSegmentLength&&t._updateSegmentTextPosition(i),t._options.showAccumulativeLength&&t._updateNodeTextPosition(i),t._updateArea(i,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y]))});return n.on("start",function(e){p.event.sourceEvent.stopPropagation(),(0,p.select)(this).raise().attr("r",6),t._disableMapScroll()}),n.on("end",function(n,i){t._enableMapScroll(),e?(t._geometry.updateNode(i,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])),t._showTooltipOnEvent(0===i?u.Config.tooltipText2:u.Config.tooltipText1)):i>0?(t._geometry.removeNode(i),(0,p.select)(this).classed("removed-circle",!0)):(t._geometry.addNode(n),t._dragged=!0),e=!1,t._dragging=!1,t._overlay.draw()}),n}},{key:"_onDragLine",value:function(){var t=this,e=!1,n=(0,m.drag)().on("drag",function(n,i){t._dragging=!0,e||(e=!0,t._geometry.insertNode(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])),t._updateLine(),t._options.showSegmentLength&&t._updateSegmentText(),t._options.showAccumulativeLength&&t._updateNodeText()),t._updateHoverCirclePosition(p.event.x,p.event.y),t._updateLinePosition(t._linesBase,i+1),t._updateLinePosition(t._linesAux,i+1),t._options.showSegmentLength&&t._updateSegmentTextPosition(i+1),t._options.showAccumulativeLength&&t._updateNodeTextPosition(i+1),t._updateArea(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y]))});return n.on("start",function(){p.event.sourceEvent.stopPropagation(),t._hoverCircle.select("circle").attr("class","cover-circle"),t._disableMapScroll()}),n.on("end",function(n,i){t._enableMapScroll(),e&&(t._geometry.updateNode(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])),t._hideHoverCircle(),t._overlay.draw(),e=!1,t._showTooltipOnEvent(u.Config.tooltipText1)),t._updateArea(i+1,t._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])),t._hoverCircle.select("circle").attr("class","grey-circle"),t._dragging=!1}),n}},{key:"_updateLinePosition",value:function(t,e){e<this._geometry.lines.length&&t.select("line:nth-child("+(e+1)+")").attr("x1",p.event.x).attr("y1",p.event.y),e>0&&t.select("line:nth-child("+e+")").attr("x2",p.event.x).attr("y2",p.event.y)}},{key:"_updateSegmentTextPosition",value:function(t){var e=this;t<this._geometry.lines.length&&this._segmentText.select("text:nth-child("+(t+1)+")").attr("transform",function(t){var n=[p.event.x,p.event.y],i=e._projectionUtility.latLngToSvgPoint(t[1]);return x.default.transformText(n,i)}).text(function(t){return e._helper.formatLength(e._helper.computeLengthBetween(e._projectionUtility.svgPointToLatLng([p.event.x,p.event.y]),t[1]))}),t>0&&this._segmentText.select("text:nth-child("+t+")").attr("transform",function(t){var n=e._projectionUtility.latLngToSvgPoint(t[0]),i=[p.event.x,p.event.y];return x.default.transformText(n,i)}).text(function(t){return e._helper.formatLength(e._helper.computeLengthBetween(t[0],e._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])))})}},{key:"_updateNodeTextPosition",value:function(t){var e=this;this._nodeText.select("text:nth-child("+(t+1)+")").attr("x",p.event.x).attr("y",function(){var n=void 0;return n=t>0&&e._projectionUtility.latLngToSvgPoint(e._geometry.nodes[t-1])[1]<p.event.y?23:-7,p.event.y+n}),this._nodeText.select("text:nth-child("+(t+2)+")").attr("y",function(n){var i=void 0;return i=t+1>0&&p.event.y<e._projectionUtility.latLngToSvgPoint(n)[1]?23:-7,e._projectionUtility.latLngToSvgPoint(n)[1]+i}),this._nodeText.selectAll("text").filter(function(e,n){return n>=t}).text(function(n,i){var r=e._helper.computePathLength([].concat(o(e._geometry.nodes.slice(0,t)),[e._projectionUtility.svgPointToLatLng([p.event.x,p.event.y])],o(e._geometry.nodes.slice(t+1,t+1+i))));return t+i===e._geometry.nodes.length-1&&(e._length=r),e._helper.formatLength(r)})}},{key:"_updateHoverCirclePosition",value:function(t,e){this._hoverCircle.select("circle").attr("cx",t).attr("cy",e),this._dragging||this._options.tooltip&&this._tooltip.show(this._projectionUtility.svgPointToContainerPoint([t,e]),u.Config.tooltipText2)}},{key:"_hideHoverCircle",value:function(){this._hoverCircle.select("circle").attr("cx",null).attr("cy",null),this._hideTooltip()}},{key:"_disableMapScroll",value:function(){this._zoomControl=!!document.querySelector("button[aria-label='Zoom in']"),this._map.setOptions({scrollwheel:!1,gestureHandling:"none",zoomControl:!1})}},{key:"_enableMapScroll",value:function(){this._map.setOptions({scrollwheel:!0,gestureHandling:"auto",zoomControl:this._zoomControl})}},{key:"_transformNodeTextY",value:function(t,e){var n=void 0;return n=e>0&&this._geometry.nodes[e-1][1]>t[1]?23:-7,this._projectionUtility.latLngToSvgPoint(t)[1]+n}},{key:"_updateArea",value:function(t,e){if(this._geometry){var n=this._geometry.nodes.length,i=1/80*this.length,r=void 0,a=0;n>2&&(0===t?(r=this._helper.computeLengthBetween(this._geometry.nodes[n-1],e),a=r>i?0:this._helper.computeArea([e].concat(o(this._geometry.nodes.slice(1,n-1))))):t===n-1?(r=this._helper.computeLengthBetween(e,this._geometry.nodes[0]),a=r>i?0:this._helper.computeArea(this._geometry.nodes.slice(0,n-1))):t>0&&t<n-1?(r=this._helper.computeLengthBetween(this._geometry.nodes[0],this._geometry.nodes[n-1]),a=r>i?0:this._helper.computeArea([].concat(o(this._geometry.nodes.slice(0,t)),[e],o(this._geometry.nodes.slice(t+1))))):(r=this._helper.computeLengthBetween(this._geometry.nodes[0],this._geometry.nodes[n-1]),a=r>i?0:this._helper.computeArea(this._geometry.nodes))),this._area=a,a>0&&this._nodeText.select(":last-child").text("Total distance: "+this.lengthText+"; Total area: "+this.areaText+".")}}},{key:"_showTooltipOnEvent",value:function(t){this._options.tooltip&&this._tooltip.show(this._projectionUtility.svgPointToContainerPoint([p.event.x,p.event.y]),t)}},{key:"_hideTooltip",value:function(){this._options.tooltip&&this._tooltip.hide()}},{key:"_dispatchMeasureEvent",value:function(){if(this._started){var t={result:{length:this.length,lengthText:this.lengthText,area:this.area,areaText:this.areaText,segments:this.segments}};this._lastMeasure&&this._lastMeasure.result.lengthText===this.lengthText&&this._lastMeasure.result.areaText===this.areaText||"function"==typeof this._events.get(b.EVENT_CHANGE)&&this._events.get(b.EVENT_CHANGE)(this._lastMeasure=t)}}},{key:"_updateSegment",value:function(t){var e=this._helper.computeLengthBetween(t[0],t[1]),n=this._helper.formatLength(e);this.segments.push(new _.Segment(t[0],t[1],e,n).toJSON())}}]),t}();e.default=C,t.exports=e.default}])});

package.json

 {
   "name": "measuretool-googlemaps-v3",
-  "version": "0.1.4",
+  "version": "0.2.0",
   "description": "A handy measurement widget for Google Maps API v3. The functionalities are implemented as close as to what current Google Maps offers.",
@@ -5,0 +5,0 @@ "main": "lib/MeasureTool.min.js",

README.md

@@ -6,3 +6,3 @@ # Measurement Tool for Google Maps API V3
 ## Demo
-[Visit demo page](http://projects.leafyjava.com/measuretool/)
+[Visit demo page](https://www.leafyjava.com/projects/measuretool)
 
@@ -9,0 +9,0 @@ ![demo screen shot](https://raw.githubusercontent.com/zhenyanghua/MeasureTool-GoogleMaps-V3/master/demo.jpg)

src/helper.js

@@ -64,2 +64,8 @@ import {UnitTypeId} from './UnitTypeId';
           break;
+      case UnitTypeId.NAUTICAL:
+          this._lengthMultiplier = 1;
+          this.formatLength = this._formatLengthNautical;
+          this._areaMultiplier = 1;
+          this.formatArea = this._formatAreaMetric;
+          break;
       default:
@@ -141,2 +147,8 @@ this._lengthMultiplier = 1;
 
+  _formatLengthNautical(value) {
+    let unit = 'NM';
+    value /= 1852;
+    return this._numberToLocale(this._roundUp(value, 2)) + ' ' + unit;
+  }
+
   _formatAreaMetric(value) {
@@ -143,0 +155,0 @@ let unit;

src/UnitTypeId.js

 export const UnitTypeId  = {
   METRIC: 'metric',
-  IMPERIAL: 'imperial'
+  IMPERIAL: 'imperial',
+  NAUTICAL: 'nautical'
 };

No alert changes

Improved metrics

Total package byte prevSize

384677

increased by0.43%

Lines of code

4345

increased by0.6%

No dependency changes