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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="initial-scale=1,maximum-scale=1,user-scalable=no"
/>
<title>GeoScene Developer Guide: Relationship</title>
<link rel="stylesheet" href="https://js.geoscene.cn/4.23/geoscene/themes/light/main.css"/>
<script src="https://js.geoscene.cn/4.23/"></script>
<style>
html,
body,
#viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
</style>
<script>
require([
"geoscene/config",
"geoscene/views/MapView",
"geoscene/WebMap",
"geoscene/layers/FeatureLayer",
"geoscene/widgets/Legend",
"geoscene/widgets/Expand",
"geoscene/smartMapping/renderers/relationship"
], function (
geosceneConfig,
MapView,
WebMap,
FeatureLayer,
Legend,
Expand,
relationshipRendererCreator
) {
geosceneConfig.apiKey = "YOUR_API_KEY";
const layer = new FeatureLayer({
portalItem: {
id: "1cbb0faa0f1f424bbe213bfae9319309"
},
blendMode: "multiply",
definitionExpression: "STATE = 'AZ'"
});
const map = new WebMap({
portalItem: {
id: "9cf503b654144873a8e33f996f91ba1d"
},
layers: [ layer ]
});
const referenceScale = 9244650*2;
const view = new MapView({
container: "viewDiv",
map: map,
scale: 1155580,
center: [ -111.868, 33.411 ],
// Set dock options on the view's popup
popup: {
dockEnabled: true,
dockOptions: {
breakpoint: false
}
},
constraints: {
snapToZoom:false
}
});
view.ui.add(new Expand({
content: new Legend({
view
}),
view
}), "top-right");
layer.when()
.then(createRelationshipRenderer)
.then(applyRenderer);
function createRelationshipRenderer() {
const params = {
layer: layer,
view: view,
field1: {
field: "AVGHHSZ_CY",
label: "Household size"
},
field2: {
field: "AVGVAL_CY",
label: "Home value"
},
focus: null,
numClasses: 3,
outlineOptimizationEnabled: true
};
return relationshipRendererCreator.createRenderer(params);
}
function applyRenderer(response) {
const renderer = response.renderer;
renderer.uniqueValueInfos.forEach(function (info) {
switch (info.value) {
case "HH":
info.label = "Large households; Expensive homes";
break;
case "HL":
info.label = "Large households; Cheaper homes";
break;
case "LH":
info.label = "Small households; Expensive homes"
break;
case "LL":
info.label = "Small households; Cheaper homes";
break;
}
});
layer.renderer = renderer;
}
});
</script>
</head>
<body>
<div id="viewDiv"></div>
</body>
</html>
