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<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<title>Sketch temporary geometries - 4.9</title>
<link rel="stylesheet" href="https://js.arcgis.com/4.20/esri/themes/light/main.css" />
<script src="https://js.arcgis.com/next/"></script>
<style>
html,
body,
#viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
font-family: verdana;
}
#topbar {
background: #fff;
position: absolute;
top: 15px;
right: 15px;
padding: 10px;
}
.action-button {
font-size: 16px;
background-color: transparent;
border: 1px solid #D3D3D3;
color: #6e6e6e;
height: 32px;
width: 32px;
text-align: center;
box-shadow: 0 0 1px rgba(0, 0, 0, 0.3);
}
.action-button:hover,
.action-button:focus {
background: #0079c1;
color: #e4e4e4;
}
.active {
background: #0079c1;
color: #e4e4e4;
}
</style>
<script>
require([
"esri/views/MapView",
"esri/Map",
"esri/widgets/Sketch/SketchViewModel",
"esri/Graphic",
"esri/layers/GraphicsLayer",
"esri/layers/WMTSLayer",
"esri/geometry/Extent"
], function (
MapView, Map,
SketchViewModel, Graphic, GraphicsLayer, WMTSLayer, Extent,
) {
let editGraphic;
// GraphicsLayer to hold graphics created via sketch view model
const graphicsLayer = new GraphicsLayer({
id: "tempGraphics"
});
const wmtsLayer = new WMTSLayer({
url: 'https://wmts.geo.admin.ch/EPSG/2056/1.0.0/WMTSCapabilities.xml',
activeLayer: {
id: 'ch.swisstopo.swissimage',
},
id: 'ch.swisstopo.swissimage',
visible: true,
});
const map = new Map({
layers: [wmtsLayer,
graphicsLayer,
]
});
const view = new MapView({
container: "viewDiv",
map: map,
zoom: 20,
extent: new Extent({
xmin: 2468999,
ymin: 1082500,
xmax: 2812500,
ymax: 1276999,
spatialReference: {
wkid: 2056,
},
}),
});
const pointSymbol = {
type: "simple-marker", // autocasts as new SimpleMarkerSymbol()
style: "square",
color: "#8A2BE2",
size: "16px",
outline: { // autocasts as new SimpleLineSymbol()
color: [255, 255, 255],
width: 3
}
};
const polylineSymbol = {
type: "simple-line", // autocasts as new SimpleLineSymbol()
color: "#8A2BE2",
width: "4",
style: "dash"
};
const polygonSymbol = {
type: "simple-fill", // autocasts as new SimpleFillSymbol()
color: "rgba(138,43,226, 0.8)",
style: "solid",
outline: {
color: "white",
width: 1
}
};
view.when(function () {
// create a new sketch view model
const sketchViewModel = new SketchViewModel({
view,
layer: graphicsLayer,
pointSymbol,
polylineSymbol,
polygonSymbol
});
setUpClickHandler();
// Listen to create-complete event to add a newly created graphic to view
sketchViewModel.on("create-complete", addGraphic);
// Listen the sketchViewModel's update-complete and update-cancel events
sketchViewModel.on("update-complete", updateGraphic);
sketchViewModel.on("update-cancel", updateGraphic);
// called when sketchViewModel's create-complete event is fired.
function addGraphic(event) {
// Create a new graphic and set its geometry to
// `create-complete` event geometry.
const graphic = new Graphic({
geometry: event.geometry,
symbol: sketchViewModel.graphic.symbol
});
graphicsLayer.add(graphic);
}
// Runs when sketchViewModel's update-complete or update-cancel
// events are fired.
function updateGraphic(event) {
// Create a new graphic and set its geometry event.geometry
var graphic = new Graphic({
geometry: event.geometry,
symbol: editGraphic.symbol
});
graphicsLayer.add(graphic);
// set the editGraphic to null update is complete or cancelled.
editGraphic = null;
}
// set up logic to handle geometry update and reflect the update on "graphicsLayer"
function setUpClickHandler() {
view.on("click", function (event) {
view.hitTest(event).then(function (response) {
var results = response.results;
if (results.length > 0) {
for (var i = 0; i < results.length; i++) {
// Check if we're already editing a graphic
if (!editGraphic && results[i].graphic.layer.id === "tempGraphics") {
// Save a reference to the graphic we intend to update
editGraphic = results[i].graphic;
// Remove the graphic from the GraphicsLayer
// Sketch will handle displaying the graphic while being updated
graphicsLayer.remove(editGraphic);
sketchViewModel.update(editGraphic);
break;
}
}
}
});
});
}
// activate the sketch to create a point
var drawPointButton = document.getElementById("pointButton");
drawPointButton.onclick = function () {
// set the sketch to create a point geometry
sketchViewModel.create("point");
setActiveButton(this);
};
// activate the sketch to create a polyline
var drawLineButton = document.getElementById("polylineButton");
drawLineButton.onclick = function () {
// set the sketch to create a polyline geometry
sketchViewModel.create("polyline");
setActiveButton(this);
};
// activate the sketch to create a polygon
var drawPolygonButton = document.getElementById("polygonButton");
drawPolygonButton.onclick = function () {
// set the sketch to create a polygon geometry
sketchViewModel.create("polygon");
setActiveButton(this);
};
// activate the sketch to create a rectangle
var drawRectangleButton = document.getElementById(
"rectangleButton");
drawRectangleButton.onclick = function () {
// set the sketch to create a polygon geometry
sketchViewModel.create("rectangle");
setActiveButton(this);
};
// activate the sketch to create a circle
var drawCircleButton = document.getElementById("circleButton");
drawCircleButton.onclick = function () {
// set the sketch to create a polygon geometry
sketchViewModel.create("circle");
setActiveButton(this);
};
// reset button
document.getElementById("resetBtn").onclick = function () {
sketchViewModel.reset();
graphicsLayer.removeAll();
setActiveButton();
};
function setActiveButton(selectedButton) {
// focus the view to activate keyboard shortcuts for sketching
view.focus();
var elements = document.getElementsByClassName("active");
for (var i = 0; i < elements.length; i++) {
elements[i].classList.remove("active");
}
if (selectedButton) {
selectedButton.classList.add("active");
}
}
});
});
</script>
</head>
<body>
<div id="viewDiv">
<div id="topbar">
<button class="action-button esri-icon-blank-map-pin" id="pointButton"
type="button" title="Draw point"></button>
<button class="action-button esri-icon-polyline" id="polylineButton" type="button"
title="Draw polyline"></button>
<button class="action-button esri-icon-polygon" id="polygonButton" type="button"
title="Draw polygon"></button>
<button class="action-button esri-icon-checkbox-unchecked" id="rectangleButton"
type="button" title="Draw rectangle"></button>
<button class="action-button esri-icon-radio-unchecked" id="circleButton"
type="button" title="Draw circle"></button>
<button class="action-button esri-icon-trash" id="resetBtn" type="button"
title="Clear graphics"></button>
</div>
</div>
</body>
</html>
Also see: Tab Triggers