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Widget.js
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Widget.js
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///////////////////////////////////////////////////////////////////////////
// Copyright © 2014 Esri. All Rights Reserved.
//
// Licensed under the Apache License Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
///////////////////////////////////////////////////////////////////////////
//
// 05/04/2017 - added functionality to display an interactive polyline total when drawing two or more segments.
// 03/30/2017 - tested with WAB 2.4. Fixed bug with editing measures.
// 08/19/2016 - tested with WAB 2.1 and added functionality to display bearing.
// 02/16/2016 - updated logic to use the abbrevation on measurement labels.
// 02/12/2016 - added checkbox to display summary measurement labels. Fixed problem that was leaving a 0.0 measurement when finishing a line.
// 12/16/2015 - tested with WAB 1.3 and added nautical miles to the distance pick list.
// 10/06/2015 - added editing capability to some geometries. CLICK graphic to start and stop editing, CTRL-CLICK to delete a measure graphic.
// 09/30/2015 - updated to remove unnecessary logic for IE - NIM094815: The mouse-drag event now works correctly using IE10 and IE11.
// 09/29/2015 - added logic to use better area and length calculations using the API geometryEngine
// to work with geodesic and planar projections
// 09/09/2015 - upgrade to new release of WAB 1.2
// - fixed problem with settings that was corrupting the WAB app
// 04/06/2015 - upgrade to new release of WAB 1.1
// - use new JSAPI scaleUtils to get map units
// - added logic for Internet Explorer to measure all geometry types
// - updated offset for mobile on certain geometry types
// 03/04/2015 - stacked area measurements
// added logic for calculating map units
// added ability to change measure text size and color
// 02/24/2015 - added logic for using on iPad, iPhone and Android devices
// added logic for stopping popups
// 02/18/2015 - removed the last measure from the freehand polygon tool
// 02/17/2015 - fix problem with perimeter measurement
// 02/17/2015 - Initial release created from the draw widget.
define([
'dojo/_base/declare',
'dijit/_WidgetsInTemplateMixin',
'jimu/BaseWidget',
'esri/layers/GraphicsLayer',
'esri/toolbars/edit',
'esri/graphic',
'esri/geometry/Extent',
'esri/geometry/Point',
'esri/symbols/SimpleMarkerSymbol',
'esri/geometry/Polyline',
'esri/symbols/SimpleLineSymbol',
'esri/geometry/Polygon',
'esri/symbols/SimpleFillSymbol',
'esri/symbols/TextSymbol',
'esri/symbols/Font',
'esri/SpatialReference',
'esri/units',
"esri/geometry/scaleUtils",
'esri/geometry/webMercatorUtils',
'esri/geometry/geodesicUtils',
'esri/geometry/geometryEngine',
'dojo/_base/lang',
'dojo/on',
'dojo/_base/html',
'dojo/_base/Color',
'dojo/_base/query',
'dojo/_base/array',
'dojo/_base/event',
'dojo/touch',
'dojo/has',
'dijit/form/Select',
'dijit/form/NumberSpinner',
'jimu/dijit/ViewStack',
'jimu/dijit/SymbolChooser',
'jimu/dijit/DrawBox',
'jimu/utils',
'dojo/sniff'
],
function(declare, _WidgetsInTemplateMixin, BaseWidget, GraphicsLayer, Edit, Graphic, Extent, Point,
SimpleMarkerSymbol, Polyline, SimpleLineSymbol, Polygon, SimpleFillSymbol,
TextSymbol, Font, SpatialReference, esriUnits, scaleUtils, webMercatorUtils, geodesicUtils, geometryEngine, lang, on, html,
Color, Query, array, event, touch, has, Select, NumberSpinner, ViewStack, SymbolChooser,
DrawBox, jimuUtils, sniff) { /*jshint unused: false*/
return declare([BaseWidget, _WidgetsInTemplateMixin], {
name: 'Measure',
baseClass: 'jimu-widget-measure',
measureClickHandler: null,
measureMoveHandler: null,
measureMouseDownHandler: null,
measureMouseDragHandler: null,
measureType: "",
measureGraphic: null,
measureGraphic2: null,
measurePolylineGraphic: null,
measureGraphicReturn: null,
measureGraphicsLayer: null,
measureSegment: 1,
useGeodesic: true,
editingEnabled: false,
editToolbar: null,
editGraphicID: "",
editGraphic1: null,
editGraphic2: null,
measureEditVertex: null,
isEditable: false,
measureBearing: null,
measureReturnBearing: null,
postMixInProperties: function() {
this.inherited(arguments);
this._resetUnitsArrays();
},
postCreate: function() {
this.inherited(arguments);
//jimuUtils.combineRadioCheckBoxWithLabel(this.showMeasure, this.showMeasureLabel);
this.drawBox.setMap(this.map);
this.viewStack = new ViewStack({
viewType: 'dom',
views: [this.pointSection, this.lineSection, this.polygonSection]
});
html.place(this.viewStack.domNode, this.settingContent);
this.textSymChooser.inputText.value = "Sample Text";
this.textSymChooser.textPreview.innerHTML = "Sample Text";
// override default font size
this.textSymChooser.textFontSize.value = "12";
this.textSymChooser.textFontSize.textbox.value = "12";
this._initUnitSelect();
this._bindEvents();
this.measureGraphicsLayer = new GraphicsLayer();
this.measureGraphicsLayer.name = "Search Buffer Results";
this.map.addLayer(this.measureGraphicsLayer);
this.drawBox.drawLayer = this.measureGraphicsLayer;
this.editToolbar = new Edit(this.map);
this.own(on(this.editToolbar, 'vertex-move-start', lang.hitch(this, this._editVertexStart)));
this.own(on(this.editToolbar, 'vertex-move-stop', lang.hitch(this, this._editVertexStop)));
this.own(on(this.editToolbar, 'vertex-delete', lang.hitch(this, this._vertexDelete)));
this.own(on(this.editToolbar, 'vertex-move', lang.hitch(this, this._editVertex)));
this.own(on(this.measureGraphicsLayer, "click", lang.hitch(this, function(evt) {
event.stop(evt);
//delete feature if ctrl key is depressed
if (evt.ctrlKey === true || evt.metaKey === true) {
var id = evt.graphic.attributes.id;
for (var i = this.measureGraphicsLayer.graphics.length-1; i >= 0; i--) {
var g = this.measureGraphicsLayer.graphics[i];
if (g.attributes.id === id) {
this.measureGraphicsLayer.remove(g);
}
}
this.editToolbar.deactivate();
this.editingEnabled = false;
} else {
//if (evt.shiftKey === true) { //edit feature if shift key is depressed
// see if graphic is editable. lines, polylines and polygons are editable.
if (evt.graphic.attributes.editable) {
if (this.editingEnabled === false) {
this.editingEnabled = true;
this.editToolbar.activate(Edit.EDIT_VERTICES, evt.graphic);
if (evt.graphic.geometry.type === 'polyline') {
this.viewStack.switchView(this.lineSection);
} else {
this.viewStack.switchView(this.polygonSection);
}
} else {
this.editToolbar.deactivate();
this.editingEnabled = false;
}
}
}
})));
var wkid = this.map.spatialReference.wkid;
if (wkid === 102100 || wkid === 3857 || wkid === 102113 || wkid === 4326) {
this.useGeodesic = true;
} else {
this.useGeodesic = false;
}
},
_resetUnitsArrays: function() {
this.defaultDistanceUnits = [];
this.defaultAreaUnits = [];
this.configDistanceUnits = [];
this.configAreaUnits = [];
this.distanceUnits = [];
this.areaUnits = [];
},
_bindEvents: function() {
//bind DrawBox
this.own(on(this.drawBox, 'IconSelected', lang.hitch(this, this._onIconSelected)));
this.own(on(this.drawBox, 'DrawEnd', lang.hitch(this, this._onDrawEnd)));
this.own(on(this.drawBox, 'Clear', lang.hitch(this, this._clear)));
//bind symbol change events
this.own(on(this.pointSymChooser, 'change', lang.hitch(this, function() {
this._setDrawDefaultSymbols();
})));
this.own(on(this.lineSymChooser, 'change', lang.hitch(this, function() {
this._setDrawDefaultSymbols();
})));
this.own(on(this.fillSymChooser, 'change', lang.hitch(this, function() {
this._setDrawDefaultSymbols();
})));
this.own(on(this.textSymChooser, 'change', lang.hitch(this, function(symbol) {
this._setDrawDefaultSymbols();
})));
this.own(on(this.helpImage, 'click', lang.hitch(this, function() {
var win = window.open("/Widget/Rolmaat/help/nl/index.html", "_blank");
win.focus();
})));
},
_onIconSelected: function(target, geotype, commontype) {
this.measureBearing = "";
this.measureReturnBearing = "";
// create a unique ID that will be used to associate the drawn graphic and text measurement graphics
var d = new Date();
this.editGraphicID = "gra_" + d.getTime();
if (geotype === 'LINE' || geotype === 'POLYLINE' || geotype === 'POLYGON') {
this.isEditable = true;
} else {
this.isEditable = false;
}
// if the user was editing, let's turn editing off
if (this.editingEnabled) {
this.editToolbar.deactivate();
this.editingEnabled = false;
}
this.measureType = geotype;
this._setDrawDefaultSymbols();
if (commontype === 'point') {
this.viewStack.switchView(this.pointSection);
} else if (commontype === 'polyline') {
this.viewStack.switchView(this.lineSection);
if (geotype === 'POLYLINE') {
this.measureClickHandler = on(this.map, "click", lang.hitch(this, this._measureClick));
} else {
if (has('ipad') || has('iphone') || has('android')) {
this.measureMouseDownHandler = on(document, touch.press, lang.hitch(this, this._measureMouseDown));
} else {
this.measureMouseDownHandler = on(this.map, "mouse-down", lang.hitch(this, this._measureMouseDown));
}
}
} else if (commontype === 'polygon') {
this.viewStack.switchView(this.polygonSection);
if (geotype === 'POLYGON') {
this.measureClickHandler = on(this.map, "click", lang.hitch(this, this._measureClick));
} else {
if (has('ipad') || has('iphone') || has('android')) {
this.measureMouseDownHandler = on(document, touch.press, lang.hitch(this, this._measureMouseDown));
} else {
this.measureMouseDownHandler = on(this.map, "mouse-down", lang.hitch(this, this._measureMouseDown));
}
}
} else if (commontype === 'text') {
this.viewStack.switchView(this.textSection);
}
this._setMeasureVisibility();
},
_onDrawEnd: function(graphic, geotype, commontype) {
// var dog = new BarkBark; // used to break on purpose for debugging...
// set graphic attributes
var att = {id: this.editGraphicID, editable: this.isEditable};
graphic.setAttributes(att);
var geometry = graphic.geometry;
var firstPoint = null;
var lastPoint = null;
var l; // number of segments
var pl = Polygon(geometry);
if (this.measureType === 'FREEHAND_POLYGON') {
// with this measure type we want to remove the last graphic
// as it completes the freehand polygon to the original start
// and makes the interactive measure incomplete
this.measureGraphicsLayer.remove(this.measureGraphic);
}
if (has('ipad') || has('iphone') || has('android')) {
// measuring on mobile devices doesn't add the final segment measurements.
if (this.measureType === 'POLYLINE') {
firstPoint = null;
lastPoint = null;
pl = Polyline(geometry);
l = pl.paths[0].length;
firstPoint = pl.getPoint(0, l - 2);
lastPoint = pl.getPoint(0, l - 1);
if (l > 1) {
var segLength = this._calculateSegmentLength(firstPoint, lastPoint);
var angle = this._calculateAngle(firstPoint, lastPoint);
var midPT = this._calculateMidPoint(firstPoint, lastPoint);
this._addClickMeasure(midPT, angle, segLength);
}
}
if (this.measureType === 'POLYGON') {
firstPoint = null;
lastPoint = null;
pl = Polygon(geometry);
l = pl.rings[0].length;
firstPoint = pl.getPoint(0, l - 2);
lastPoint = pl.getPoint(0, l - 1);
if (l > 1) {
var segLength = this._calculateSegmentLength(firstPoint, lastPoint);
var angle = this._calculateAngle(firstPoint, lastPoint);
var midPT = this._calculateMidPoint(firstPoint, lastPoint);
this._addClickMeasure(midPT, angle, segLength);
}
// do this again to get the second to last measurement
var fp = pl.getPoint(0, l - 3);
var lp = pl.getPoint(0, l - 2);
if (l > 1) {
var segLength = this._calculateSegmentLength(fp, lp);
var angle = this._calculateAngle(fp, lp);
var mp = this._calculateMidPoint(fp, lp);
this._addClickMeasure(mp, angle, segLength);
}
}
}
if (this.measurePolylineGraphic) {
this.measureGraphicsLayer.remove(this.measurePolylineGraphic);
}
this.measureGraphic = null;
this.measureGraphic2 = null;
this.measurePolylineGraphic = null;
this.measureGraphicReturn = null;
this.measureSegment = 1;
if (geometry.type === 'extent') {
var a = geometry;
var polygon = new Polygon(a.spatialReference);
var r = [
[a.xmin, a.ymin],
[a.xmin, a.ymax],
[a.xmax, a.ymax],
[a.xmax, a.ymin],
[a.xmin, a.ymin]
];
polygon.addRing(r);
geometry = polygon;
commontype = 'polygon';
}
if (commontype === 'polyline') {
if (this.showTotals.checked){
if (this.measureType !== 'LINE' && this.measureType !== 'FREEHAND_POLYLINE') {
this._addLineMeasure(geometry);
}
}
if (geotype === 'POLYLINE') {
if (this.measureMoveHandler) {
this.measureMoveHandler.remove();
}
} else {
this.measureMouseDragHandler.remove();
}
} else if (commontype === 'polygon') {
if (this.showTotals.checked){
this._addPolygonMeasure(geometry);
}
if (geotype === 'POLYGON') {
if (this.measureMoveHandler) {
this.measureMoveHandler.remove();
}
} else {
this.measureMouseDragHandler.remove();
}
}
},
_reorderGraphics: function() {
// text for measurements needs to be on type all others
var graArray = [];
// make 2 pass through the graphics in the measure array move text to the top.
// second pass adds text graphics
for (var i = 0; i < this.drawBox.drawLayer.graphics.length; i++) {
var gra = this.drawBox.drawLayer.graphics[i];
if (gra.symbol.type === 'textsymbol') {
graArray.push(gra);
}
}
// first pass adds non text graphics
for (var i = 0; i < this.drawBox.drawLayer.graphics.length; i++) {
var gra = this.drawBox.drawLayer.graphics[i];
if (gra.symbol.type !== 'textsymbol') {
graArray.push(gra);
}
}
this.drawBox.drawLayer.graphics = graArray;
this.drawBox.drawLayer.redraw();
},
_measureClick: function(e) {
// start the measure of the graphic being drawn
// console.log("Map measure clicked");
this.measureClickHandler.remove();
if (has('ipad') || has('iphone') || has('android')) {
this.measureMoveHandler = on(this.map, "click", lang.hitch(this, this._measureClickSegment));
} else {
this.measureMoveHandler = on(this.map, "mouse-move", lang.hitch(this, this._measureMove));
}
},
_measureMove: function(e) {
// get the graphic being drawn
var gra = this.drawBox.drawToolBar._graphic;
// the geometry may be null as drawing is beginning
if (gra) {
// get the last point in the drawn graphic
var firstPoint = null;
var lastPoint = null;
var l; // number of segments
if (gra.geometry.type === 'polyline') {
var pl = Polyline(gra.geometry);
l = pl.paths[0].length;
lastPoint = pl.getPoint(0, l - 1);
} else {
// must be a polygon
var poly = Polygon(gra.geometry);
l = poly.rings[0].length;
firstPoint = poly.getPoint(0, 0);
lastPoint = poly.getPoint(0, l - 1);
}
var segLength = this._calculateSegmentLength(lastPoint, e.mapPoint);
var angle = this._calculateAngle(lastPoint, e.mapPoint);
var midPT = this._calculateMidPoint(lastPoint, e.mapPoint);
this.measureBearing = this._getBearing(lastPoint, e.mapPoint);
if (l > this.measureSegment) {
// this means that we have started a new segment and need to leave the last measure in place
//var att = {id: this.editGraphicID, index: this.measureSegment};
//var mg = new Graphic(this.measureGraphic.geometry, this.measureGraphic.symbol, att, null);
//this.measureGraphicsLayer.add(mg);
this.measureGraphic = null;
this.measureSegment = l;
}
if (angle) {
this._addSegmentMeasure(midPT, angle, segLength);
}
// lets get the return length to the beginning point
if (l > 1 && gra.geometry.type === 'polygon') {
var mp = this._calculateMidPoint(firstPoint, e.mapPoint);
var sl = this._calculateSegmentLength(firstPoint, e.mapPoint);
var angle = this._calculateAngle(firstPoint, e.mapPoint);
this.measureReturnBearing = this._getBearing(e.mapPoint, firstPoint);
this._addReturnMeasure(mp, angle, sl);
}
// display an interactive measurement of the polyline when there are more than 2 segments
if (l > 1 && gra.geometry.type === 'polyline') {
var path = [];
for (var i = 0; i < gra.geometry.paths[0].length; i++) {
path.push(gra.geometry.paths[0][i]);
}
path.push([e.mapPoint.x, e.mapPoint.y]);
var currentPL = new Polyline(this.map.spatialReference);
currentPL.addPath(path);
var polyLength = this._calculatePolylineLength(currentPL);
this._addPolylineTotalMeasure(polyLength, e.mapPoint);
}
//console.log("Map measure moved - length: " + segLength);
}
},
_editVertexStart: function(e) {
console.log("Started Vertex Edit");
// this is a good place to determine which measure dimension graphics we are going to edit
// depending on which vertex is chosen.
var gra = e.graphic;
this.editGraphicID = e.graphic.attributes.id;
var geomtype = gra.geometry.type;
var pl;
var l = 0;
if (geomtype === 'polyline') {
pl = new Polyline(gra.geometry);
l = pl.paths[0].length;
} else {
pl = new Polygon(gra.geometry);
l = pl.rings[0].length;
}
this._setDrawDefaultSymbols();
var isGhostVertex = e.vertexinfo.isGhost;
var pointIndex = e.vertexinfo.pointIndex;
if (isGhostVertex) {
// this is a ghost vertex that means we are splitting the line. We need to add a new dimension graphic
// and update the other dimension graphics sequence numbers
// update the index numbers for the other dimension graphics
var g;
for (var i = 0; i < gra._graphicsLayer.graphics.length; i++) {
g = gra._graphicsLayer.graphics[i];
var att = g.attributes;
if (att.id === gra.attributes.id && att.index > pointIndex && att.index < 999) {
g.attributes.index += 1;
}
}
// we are moving a vertex in the middle of the polyline and measuring 2 segments
this.editGraphic1 = this._findDimensionGraphic(gra._graphicsLayer, gra.attributes.id, pointIndex);
// new graphic for second dimension
var a = {id: this.editGraphic1.attributes.id, index: this.editGraphic1.attributes.index + 1};
this.editGraphic2 = new Graphic(this.editGraphic1.geometry, this.editGraphic1.symbol, a, null);
this.measureGraphicsLayer.add(this.editGraphic2);
} else {
// not a ghost vertex. if the vertex is the first or last we will only be calculating one measure
// otherwise we will be calculating distances for two segments.
// find the dimension graphic that will be changed
if (pointIndex === 0) {
if (geomtype === 'polyline') {
this.editGraphic1 = this._findDimensionGraphic(gra._graphicsLayer, gra.attributes.id, pointIndex + 1);
this.editGraphic2 = null;
} else {
// get the first dimension and the last dimension for a polygon
this.editGraphic1 = this._findDimensionGraphic(gra._graphicsLayer, gra.attributes.id, pointIndex + 1);
this.editGraphic2 = this._findDimensionGraphic(gra._graphicsLayer, gra.attributes.id, l - 1);
}
} else if (pointIndex === l - 1) {
this.editGraphic1 = this._findDimensionGraphic(gra._graphicsLayer, gra.attributes.id, pointIndex);
this.editGraphic2 = null;
} else {
// we are moving a vertex in the middle of the polyline and measuring 2 segments
this.editGraphic1 = this._findDimensionGraphic(gra._graphicsLayer, gra.attributes.id, pointIndex);
this.editGraphic2 = this._findDimensionGraphic(gra._graphicsLayer, gra.attributes.id, pointIndex + 1);
}
}
// make the vertex information available globally
this.measureEditVertex = e;
// as per usual, we have to add logic to make this work with Internet Explorer...
if (has('ipad') || has('iphone') || has('android')) {
this.measureMouseDragHandler = on(document, touch.move, lang.hitch(this, this._editVertex));
} else if (has("ie") === 9 || has("ie") === 10 || has("trident")) {
this.measureMoveHandler = on(this.map, "mouse-drag", lang.hitch(this, this._editVertex));
//console.log("Using mouse-drag for IE");
} else {
this.measureMoveHandler = on(this.map, "mouse-drag", lang.hitch(this, this._editVertex));
//this.measureMoveHandler = on(this.map, "mouse-drag", lang.hitch(this, this._editVertex));
}
},
_findDimensionGraphic: function(graphicsLayer, id, index) {
var gra = null;
for (var i = 0; i < graphicsLayer.graphics.length; i++) {
var g = graphicsLayer.graphics[i];
var att = g.attributes;
if (att.id === id && index === att.index) {
gra = g;
}
}
return gra;
},
_editVertexStop: function(e) {
console.log("Stopped Vertex Edit");
if (this.measureMoveHandler) {
this.measureMoveHandler.remove();
}
// remove the summary text graphics
var id = e.graphic.attributes.id;
for (var i = this.measureGraphicsLayer.graphics.length-1; i >= 0; i--) {
var g = this.measureGraphicsLayer.graphics[i];
if (g.attributes.id === id) {
// remove area and length summary graphics. we are going to recalculate and re-add them
if (g.attributes.index === 999) {
this.measureGraphicsLayer.remove(g);
}
}
}
if (this.showTotals.checked){
if (e.graphic.geometry.type === 'polyline') {
this._addLineMeasure(e.graphic.geometry);
} else {
this._addPolygonMeasure(e.graphic.geometry);
}
}
this.measureGraphic = null;
this.measureGraphic2 = null;
this.measureGraphicReturn = null;
this.measureSegment = 1;
},
_vertexMove: function(e) {
console.log("Moving Vertex...");
// get the graphic being drawn
var gra = this.measureEditVertex.graphic;
var vi = this.measureEditVertex.vertexinfo;
var transform = e.transform;
if (!this.measureMoveHandler) {
this.measureMoveHandler = on(this.map, "mouse-drag", lang.hitch(this, this._editVertex));
}
},
_editVertex: function(e) {
console.log("Editing Vertex...");
// get the graphic being drawn
var gra = this.measureEditVertex.graphic;
var vi = this.measureEditVertex.vertexinfo;
var transform = e.transform;
// calculate the point movement
var pt = this.map.toScreen(vi.graphic.geometry);
var ePoint = this.map.toMap(pt.offset(transform.dx, transform.dy));
//console.log("Transform dx: " + transform.dx + ", dy: " + transform.dy)
// the geometry may be null as drawing is beginning
if (gra) {
// get the last point in the drawn graphic
var stationaryPoint1 = null;
var stationaryPoint2 = null;
var pl;
var l;
if (gra.geometry.type === 'polyline') {
pl = Polyline(gra.geometry);
l = pl.paths[0].length;
} else {
// must be a polygon
pl = Polygon(gra.geometry);
l = pl.rings[0].length;
}
if (vi.isGhost) {
stationaryPoint1 = pl.getPoint(0, vi.pointIndex -1);
stationaryPoint2 = pl.getPoint(0, vi.pointIndex);
} else {
if (vi.pointIndex === 0) {
stationaryPoint1 = pl.getPoint(0, vi.pointIndex + 1);
if (gra.geometry.type === 'polygon') {
stationaryPoint2 = pl.getPoint(0, l - 2);
}
} else if (vi.pointIndex === l -1) {
stationaryPoint1 = pl.getPoint(0, vi.pointIndex -1);
} else {
// we are moving a vertex in the middle of the polyline and measuring 2 segments
stationaryPoint1 = pl.getPoint(0, vi.pointIndex -1);
stationaryPoint2 = pl.getPoint(0, vi.pointIndex +1);
}
}
// calculate the first segment dimension
var segLength = this._calculateSegmentLength(stationaryPoint1, ePoint);
var angle = this._calculateAngle(stationaryPoint1, ePoint);
var midPT = this._calculateMidPoint(stationaryPoint1, ePoint);
this.measureBearing = this._getBearing(stationaryPoint1, ePoint);
this.measureGraphic = this.editGraphic1;
this._addSegmentMeasure(midPT, angle, segLength);
// if not moving an end vertex, calculate the second segment dimension
if (stationaryPoint2) {
segLength = this._calculateSegmentLength(stationaryPoint2, ePoint);
angle = this._calculateAngle(stationaryPoint2, ePoint);
midPT = this._calculateMidPoint(stationaryPoint2, ePoint);
this.measureReturnBearing = this._getBearing(ePoint, stationaryPoint2);
this.measureGraphic2 = this.editGraphic2;
this._addSegmentMeasure2(midPT, angle, segLength);
}
}
},
_vertexDelete: function(e) {
// routine to delete the selected vertex
var gra = e.graphic;
var vi = e.vertexinfo;
var a = 0;
// remove text graphics
for (var i = this.measureGraphicsLayer.graphics.length-1; i >= 0; i--) {
var g = this.measureGraphicsLayer.graphics[i];
if (g.attributes.id === this.editGraphicID && g.geometry.type === 'point') {
this.measureGraphicsLayer.remove(g);
}
}
// add new measures to the line
var pl;
var l;
if (gra.geometry.type === 'polyline') {
pl = Polyline(gra.geometry);
l = pl.paths[0].length;
} else {
// must be a polygon
pl = Polygon(gra.geometry);
l = pl.rings[0].length;
}
for (i = 1; i < l; i++) {
var pt1 = pl.getPoint(0, i -1);
var pt2 = pl.getPoint(0, i);
// calculate the first segment dimension
var segLength = this._calculateSegmentLength(pt1, pt2);
var angle = this._calculateAngle(pt1, pt2);
var midPT = this._calculateMidPoint(pt1, pt2);
this.measureBearing = this._getBearing(pt1, pt2);
this.measureGraphic = null;
this.measureSegment = i;
this._addSegmentMeasure(midPT, angle, segLength);
}
if (this.showTotals.checked){
if (gra.geometry.type === 'polyline') {
this._addLineMeasure(pl);
} else {
this._addPolygonMeasure(pl);
}
}
},
_measureClickSegment: function(e) {
// get the graphic being drawn
var gra = this.drawBox.drawToolBar._graphic;
// the geometry may be null as drawing is beginning
if (gra) {
// get the last point in the drawn graphic
var firstPoint = null;
var lastPoint = null;
var l; // number of segments
if (gra.geometry.type === 'polyline') {
var pl = Polyline(gra.geometry);
l = pl.paths[0].length;
firstPoint = pl.getPoint(0, l - 2);
lastPoint = pl.getPoint(0, l - 1);
} else {
// must be a polygon
var poly = Polygon(gra.geometry);
l = poly.rings[0].length;
firstPoint = poly.getPoint(0, l - 2);
lastPoint = poly.getPoint(0, l - 1);
}
if (l > 1) {
var segLength = this._calculateSegmentLength(firstPoint, lastPoint);
var angle = this._calculateAngle(firstPoint, lastPoint);
var midPT = this._calculateMidPoint(firstPoint, lastPoint);
this._addClickMeasure(midPT, angle, segLength);
}
}
},
_measureMouseDown: function(e) {
// ts - start the measure of the graphic being drawn
//console.log("Map measure mouse down");
this.measureMouseDownHandler.remove();
if (has('ipad') || has('iphone') || has('android')) {
this.measureMouseDragHandler = on(document, touch.move, lang.hitch(this, this._measureDrag));
} else {
this.measureMouseDragHandler = on(this.map, "mouse-drag", lang.hitch(this, this._measureDrag));
}
},
_measureDrag: function(e) {
// get the graphic being drawn
var gra = this.drawBox.drawToolBar._graphic;
// the geometry may be null as drawing is beginning
if (gra) {
// get the last point in the drawn graphic
var firstPoint = null;
var lastPoint = null;
var l; // number of segments
if (this.measureType === 'LINE') {
var pl = Polyline(gra.geometry);
firstPoint = pl.getPoint(0, 0);
var segLength = this._calculateSegmentLength(firstPoint, e.mapPoint);
var angle = this._calculateAngle(firstPoint, e.mapPoint);
var midPT = this._calculateMidPoint(firstPoint, e.mapPoint);
this._addSegmentMeasure(midPT, angle, segLength);
}
if (this.measureType === 'FREEHAND_POLYLINE') {
var pl = Polyline(gra.geometry);
var segLength = this._calculatePolylineLength(pl);
if (has('ipad') || has('iphone') || has('android')) {
// if mobile we want to offset the text so it can be seen.
var pt = new Point(e.mapPoint.x, e.mapPoint.y, this.map.spatialReference);
pt.y += this._calculateDistanceFromPixels(20);
this._addSegmentMeasure(pt, 0, segLength);
} else {
this._addSegmentMeasure(e.mapPoint, 0, segLength);
}
}
if (this.measureType === 'TRIANGLE') {
var pl = Polygon(gra.geometry);
firstPoint = pl.getPoint(0, 1);
lastPoint = pl.getPoint(0, 2);
if (firstPoint) { // this is for IE. It can't resolve the point when it begins drawing.
var segLength = this._calculateSegmentLength(firstPoint, lastPoint);
var angle = this._calculateAngle(firstPoint, lastPoint);
var midPT = this._calculateMidPoint(firstPoint, lastPoint);
this._addSegmentMeasure(midPT, angle, segLength);
}
}
if (this.measureType === 'EXTENT') {
var ext = gra._extent;
firstPoint = Point(ext.xmin, ext.ymax);
lastPoint = Point(ext.xmax, ext.ymax);
var segLength = this._calculateSegmentLength(firstPoint, lastPoint);
var angle = this._calculateAngle(firstPoint, lastPoint);
var midPT = this._calculateMidPoint(firstPoint, lastPoint);
this._addSegmentMeasure(midPT, angle, 'w: ' + segLength);
fPoint = Point(ext.xmin, ext.ymin);
lPoint = Point(ext.xmin, ext.ymax);
var segLength = this._calculateSegmentLength(fPoint, lPoint);
var angle = this._calculateAngle(fPoint, lPoint);
var midPT = this._calculateMidPoint(fPoint, lPoint);
this._addSegmentMeasure2(midPT, angle, 'h: ' + segLength);
}
if (this.measureType === 'CIRCLE') {
var ext = gra._extent;
var segLength = this._calculateSegmentLength(ext.getCenter(), e.mapPoint);
if (has('ipad') || has('iphone') || has('android')) {
// if mobile we want to offset the text so it can be seen.
var pt = new Point(e.mapPoint.x, e.mapPoint.y, this.map.spatialReference);
pt.y += this._calculateDistanceFromPixels(20);
this._addSegmentMeasure(pt, 0, 'r=' + segLength);
} else {
this._addSegmentMeasure(e.mapPoint, 0, 'r=' + segLength);
}
}
if (this.measureType === 'ELLIPSE') {
var ext = gra._extent;
firstPoint = Point(ext.xmin, ext.ymax);
lastPoint = Point(ext.xmax, ext.ymax);
var segLength = this._calculateSegmentLength(firstPoint, lastPoint);
var angle = this._calculateAngle(firstPoint, lastPoint);
var midPT = this._calculateMidPoint(firstPoint, lastPoint);
this._addSegmentMeasure(midPT, angle, 'w: ' + segLength);
var fPoint = Point(ext.xmin, ext.ymin);
var lPoint = Point(ext.xmin, ext.ymax);
var segLength = this._calculateSegmentLength(fPoint, lPoint);
var angle = this._calculateAngle(fPoint, lPoint);
var midPT = this._calculateMidPoint(fPoint, lPoint);
this._addSegmentMeasure2(midPT, angle, 'h: ' + segLength);
}
if (this.measureType == 'FREEHAND_POLYGON') {
var pl = new Polyline(gra.geometry.spatialReference);
var points = gra.geometry.rings[0];
points = points.slice(0, points.length - 1);
pl.addPath(points);
var segLength = this._calculatePolylineLength(pl);
if (has('ipad') || has('iphone') || has('android')) {
// if mobile we want to offset the text so it can be seen.
var pt = new Point(e.mapPoint.x, e.mapPoint.y, this.map.spatialReference);
pt.y += this._calculateDistanceFromPixels(20);
this._addSegmentMeasure(pt, 0, segLength);
} else {
this._addSegmentMeasure(e.mapPoint, 0, segLength);
}
}
}
},
_calculateSegmentLength: function(pt1, pt2) {
var pl = new Polyline(this.map.spatialReference);
pl.addPath([pt1, pt2]);
// we want the last point being drawn
var unit = this.distanceUnitSelect.value;
var gsUnit = this._getUnitByEsriUnit(unit);
var geoLength = 0;
if (this.useGeodesic) {
geoLength = geometryEngine.geodesicLength(pl, gsUnit);
} else {
geoLength = geometryEngine.planarLength(pl, gsUnit);
}
var abbr = this._getDistanceUnitInfo(unit).abbr;
var localeLength = jimuUtils.localizeNumber(geoLength.toFixed(1));
var length = localeLength + abbr;
this.textSymChooser.inputText.value = length;
this.textSymChooser.textPreview.innerHTML = length;
return length;
},
_calculatePolylineLength: function(pl) {
// we want the last point being drawn
var unit = this.distanceUnitSelect.value;
var gsUnit = this._getUnitByEsriUnit(unit);
var geoLength = 0;
if (this.useGeodesic) {
geoLength = geometryEngine.geodesicLength(pl, gsUnit);
} else {
geoLength = geometryEngine.planarLength(pl, gsUnit);
}
var abbr = this._getDistanceUnitInfo(unit).abbr;
// this is a placeholder for logic. Need to add logic for actual map units either meters or feet
var localeLength = jimuUtils.localizeNumber(geoLength.toFixed(1));
var length = localeLength + abbr;
this.textSymChooser.inputText.value = length;
return length;
},
_calculateAngle: function(pt1, pt2) {
// some basic trig to calculate the angle for the text to be placed
var y = pt2.y - pt1.y;
var x = pt2.x - pt1.x;
var r = y / x;
var angle = Math.atan(r) * 180 / Math.PI * -1;
return angle;
},
_calculateMidPoint: function(pt1, pt2) {
var midX = (pt1.x + pt2.x) / 2;
var midY = (pt1.y + pt2.y) / 2;
var midPoint = new Point(midX, midY, this.map.spatialReference);
return midPoint;
},
_calculateMidPointWithOffset: function(pt1, pt2) {
// THIS DOESN'T WORK YET... NEED TO GET BETTER FORMULA FOR CALCULATING OFFSET
var midX = (pt1.x + pt2.x) / 2;
var midY = (pt1.y + pt2.y) / 2;
// offset the point from the line to do smooth tracking of the measurement
var offset = this._calculateDistanceFromPixels(10); // convert 10 pixels into map units
var dx = pt1.x - pt2.x;
var slope = dx / (pt1.y - pt2.y);
var x = (Math.sqrt(Math.abs(Math.pow(offset, 2) - Math.pow(dx, 2))) / slope) + midX;
var y = (slope * (x - midX)) + midY;
var midPoint = new Point(x, y, this.map.spatialReference);
return midPoint;
},
_calculateDistanceFromPixels: function(pixels) {
var screenPoint = this.map.toScreen(this.map.extent.getCenter());
var upperLeftScreenPoint = new Point(screenPoint.x - pixels, screenPoint.y - pixels);
var lowerRightScreenPoint = new Point(screenPoint.x + pixels, screenPoint.y + pixels);
var upperLeftMapPoint = this.map.toMap(upperLeftScreenPoint);
var lowerRightMapPoint = this.map.toMap(lowerRightScreenPoint);
var ext = new Extent(upperLeftMapPoint.x, upperLeftMapPoint.y, lowerRightMapPoint.x, lowerRightMapPoint.y, this.map.spatialReference);
return ext.getWidth();
},
_addSegmentMeasure: function(pt, angle, length) {
var a = Font.STYLE_ITALIC;
var b = Font.VARIANT_NORMAL;
var c = Font.WEIGHT_BOLD;
var symbolFont = new Font(this.textSymChooser.textFontSize.value + "px", a, b, c, "Courier");
var fontColor = this.textSymChooser.textColor.color;
if (this.showBearing.checked){
length += " " + this.measureBearing;
}
var textSymbol = new TextSymbol(length, symbolFont, fontColor);
var xOff = 0;
var yOff = 0;
if (angle >= 0 && angle < 45) {
xOff = 5;
yOff = 10;
} else if (angle > 45) {
xOff = 10;
yOff = 5;
} else if (angle > -45 && angle < 0) {
xOff = 5;
yOff = 13;
} else {
xOff = -10;
yOff = 5;
}
textSymbol.setOffset(xOff, yOff);
textSymbol.setAngle(angle);
// console.log("angle: " + angle);
if (this.measureGraphic === null || this.measureGraphic._graphicsLayer === null) {
var att = {id: this.editGraphicID, index: this.measureSegment};
this.measureGraphic = new Graphic(pt, textSymbol, att, null);
this.measureGraphicsLayer.add(this.measureGraphic);
} else {
this.measureGraphic.setGeometry(pt);
this.measureGraphic.setSymbol(textSymbol);
//console.log("Moving Segment Measure...");
}
},
_addPolylineTotalMeasure: function(length, pt) {
var a = Font.STYLE_ITALIC;
var b = Font.VARIANT_NORMAL;
var c = Font.WEIGHT_BOLD;
var symbolFont = new Font(this.textSymChooser.textFontSize.value + "px", a, b, c, "Courier");
var fontColor = this.textSymChooser.textColor.color;
var textSymbol = new TextSymbol(length, symbolFont, fontColor);
textSymbol.setOffset(60, 10);
textSymbol.setAlign(Font.ALIGN_START);
if (this.measurePolylineGraphic === null || this.measurePolylineGraphic._graphicsLayer === null) {
this.measurePolylineGraphic = new Graphic(pt, textSymbol, null, null);
this.measureGraphicsLayer.add(this.measurePolylineGraphic);
} else {
this.measurePolylineGraphic.setGeometry(pt);
this.measurePolylineGraphic.setSymbol(textSymbol);
}
},
_addClickMeasure: function(pt, angle, length) {
var a = Font.STYLE_ITALIC;
var b = Font.VARIANT_NORMAL;
var c = Font.WEIGHT_BOLD;
var symbolFont = new Font(this.textSymChooser.textFontSize.value + "px", a, b, c, "Courier");
var fontColor = this.textSymChooser.textColor.color;
var textSymbol = new TextSymbol(length, symbolFont, fontColor);
var xOff = 0;
var yOff = 0;
if (angle >= 0 && angle < 45) {
xOff = 5;
yOff = 10;
} else if (angle > 45) {
xOff = 10;