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wurman-dots.html
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<html>
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="initial-scale=1,maximum-scale=1,user-scalable=no"
/>
<!--
ArcGIS API for JavaScript, https://js.arcgis.com
For more information about the cim-primitive-overrides sample, read the original sample description at developers.arcgis.com.
https://developers.arcgis.com/javascript/latest/sample-code/cim-primitive-overrides/index.html
-->
<title>Wurman dots | Sample | ArcGIS API for JavaScript 4.16</title>
<style>
html,
body,
#viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
.description {
background-color: white;
padding: 10px;
}
.title {
background-color: inherit;
text-align: center;
font-size: 16pt;
padding: 5px 10px 10px 10px;
color: #363636;
}
.high-population {
color: #c9770c;
font-weight: 900;
}
.low-population {
color: #4b6147;
font-weight: 900;
}
</style>
<link
rel="stylesheet"
href="https://js.arcgis.com/4.16/esri/themes/light/main.css"
/>
<script src="https://js.arcgis.com/4.16/"></script>
<script>
require([
"esri/Map",
"esri/views/MapView",
"esri/layers/FeatureLayer",
"esri/widgets/Expand"
], function (Map, MapView, FeatureLayer, Expand) {
const map = new Map({
basemap: {
portalItem: {
id: "71463912e8ce4ee3a3e4fd307095484b"
}
}
});
const view = new MapView({
container: "viewDiv",
map: map,
center: [-85, 38],
zoom: 5,
constraints: {
minScale: 18489300,
maxScale: 2311161
},
highlightOptions: {
fillOpacity: 0
}
});
const featureLayer = new FeatureLayer({
url:
"https://services1.arcgis.com/4yjifSiIG17X0gW4/arcgis/rest/services/Landcover_30km_centroids_from_hex/FeatureServer",
renderer: {
type: "simple",
symbol: {
type: "cim",
data: {
type: "CIMSymbolReference",
symbol: {
type: "CIMPointSymbol",
symbolLayers: [
{
type: "CIMVectorMarker",
enable: true,
anchorPoint: { x: 0, y: 0 },
anchorPointUnits: "Relative",
primitiveName: "innerSizeOverride",
frame: { xmin: 0.0, ymin: 0.0, xmax: 17.0, ymax: 17.0 },
markerGraphics: [
{
type: "CIMMarkerGraphic",
geometry: {
rings: [
[
[8.5, 0.2],
[7.06, 0.33],
[5.66, 0.7],
[4.35, 1.31],
[3.16, 2.14],
[2.14, 3.16],
[1.31, 4.35],
[0.7, 5.66],
[0.33, 7.06],
[0.2, 8.5],
[0.33, 9.94],
[0.7, 11.34],
[1.31, 12.65],
[2.14, 13.84],
[3.16, 14.86],
[4.35, 15.69],
[5.66, 16.3],
[7.06, 16.67],
[8.5, 16.8],
[9.94, 16.67],
[11.34, 16.3],
[12.65, 15.69],
[13.84, 14.86],
[14.86, 13.84],
[15.69, 12.65],
[16.3, 11.34],
[16.67, 9.94],
[16.8, 8.5],
[16.67, 7.06],
[16.3, 5.66],
[15.69, 4.35],
[14.86, 3.16],
[13.84, 2.14],
[12.65, 1.31],
[11.34, 0.7],
[9.94, 0.33],
[8.5, 0.2]
]
]
},
symbol: {
type: "CIMPolygonSymbol",
symbolLayers: [
{
type: "CIMSolidFill",
enable: true,
color: [0, 0, 0, 30]
}
]
}
}
],
scaleSymbolsProportionally: true,
respectFrame: true
},
{
type: "CIMVectorMarker",
enable: true,
anchorPoint: { x: 0, y: 0 },
anchorPointUnits: "Relative",
primitiveName: "outerSizeOverride",
frame: { xmin: 0.0, ymin: 0.0, xmax: 17.0, ymax: 17.0 },
markerGraphics: [
{
type: "CIMMarkerGraphic",
geometry: {
rings: [
[
[8.5, 0.2],
[7.06, 0.33],
[5.66, 0.7],
[4.35, 1.31],
[3.16, 2.14],
[2.14, 3.16],
[1.31, 4.35],
[0.7, 5.66],
[0.33, 7.06],
[0.2, 8.5],
[0.33, 9.94],
[0.7, 11.34],
[1.31, 12.65],
[2.14, 13.84],
[3.16, 14.86],
[4.35, 15.69],
[5.66, 16.3],
[7.06, 16.67],
[8.5, 16.8],
[9.94, 16.67],
[11.34, 16.3],
[12.65, 15.69],
[13.84, 14.86],
[14.86, 13.84],
[15.69, 12.65],
[16.3, 11.34],
[16.67, 9.94],
[16.8, 8.5],
[16.67, 7.06],
[16.3, 5.66],
[15.69, 4.35],
[14.86, 3.16],
[13.84, 2.14],
[12.65, 1.31],
[11.34, 0.7],
[9.94, 0.33],
[8.5, 0.2]
]
]
},
symbol: {
type: "CIMLineSymbol",
symbolLayers: [
{
type: "CIMSolidStroke",
enable: true,
color: [150, 150, 150, 50],
width: 1
}
]
}
}
],
scaleSymbolsProportionally: true,
respectFrame: true
}
]
},
primitiveOverrides: [
{
type: "CIMPrimitiveOverride",
primitiveName: "outerSizeOverride",
propertyName: "Size",
valueExpressionInfo: {
type: "CIMExpressionInfo",
title: "Size in pixels of outer ring at maxScale",
// the pixel size at the largest scale
// 42 represents the pixel size of the
// circles at the view's largest scale (1:2,311,161)
expression: "42 * 2311161 / $view.scale",
returnType: "Default"
}
},
{
type: "CIMPrimitiveOverride",
primitiveName: "innerSizeOverride",
propertyName: "Size",
valueExpressionInfo: {
type: "CIMExpressionInfo",
title: "Size in pixels of inner ring at maxScale",
// outerSize is the pixel size at the largest scale
// The innerSize is determined by multiplying
// the outerSize by the forest ratio
expression: `
var forestRatio = $feature.NLCDfrstPt / 100;
var outerSize = 42 * 2311161 / $view.scale;
var innerSize = outerSize * forestRatio;
return IIF( innerSize < 3, 3, innerSize );
`,
returnType: "Default"
}
}
]
}
},
visualVariables: [
{
type: "color",
field: "POP2010",
stops: [
{
value: 0,
color: [57, 74, 53]
},
{
value: 15000,
color: [94, 120, 89]
},
{
value: 30000,
color: [235, 227, 215]
},
{
value: 90000,
color: [199, 143, 70]
},
{
value: 150000,
color: [201, 114, 0]
}
]
}
]
},
popupTemplate: {
content: [
{
type: "fields",
fieldInfos: [
{
fieldName: "NLCDfrstPt",
label: "% forested land (NLCD)",
format: {
places: 0
}
},
{
fieldName: "POP2010",
label: "Population (2010)",
format: {
places: 0,
digitSeparator: true
}
}
]
}
]
},
definitionExpression: "NLCDfrstPt > 1"
});
view.map.add(featureLayer);
// Add custom legend as an image to an Expand instance
const descriptionContainer = document.createElement("div");
descriptionContainer.classList.add("description");
const descriptionTitle = document.createElement("div");
descriptionTitle.innerHTML =
"Percent of forested land (size)</br>by population " +
'(color: <span class="high-population">high population</span>, <span class="low-population">low population</span>)';
descriptionTitle.classList.add("esri-widget");
descriptionTitle.classList.add("title");
descriptionContainer.appendChild(descriptionTitle);
const image = document.createElement("img");
image.src =
"https://arcgis.github.io/arcgis-samples-javascript/sample-data/cim-primitive-overrides/wurman-legend.png";
descriptionContainer.appendChild(image);
view.ui.add(
new Expand({
view: view,
content: descriptionContainer,
expandIconClass: "esri-icon-description"
}),
"top-left"
);
// Adjusts the size of the legend image
// based on the size of the view
view.when().then(adjustLegendByViewSize);
view.watch("widthBreakpoint", adjustLegendByViewSize);
function adjustLegendByViewSize() {
if (view.widthBreakpoint === "xsmall") {
image.style.width = "100%";
} else {
image.style.width = null;
}
}
});
</script>
</head>
<body>
<div id="viewDiv"></div>
</body>
</html>