Blank legend content

GueniotFlorian — Wed, 05 Jul 2017 15:30:05 GMT

Hi,

I would like to show a legend on my map with the value of each point, but my legend show only the title.

Anything is missing somewhere ?

Here is my code :

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
<style>
html, body, #viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
</style>
<title>Carte de lemmes</title>
<link rel="stylesheet" href="https://js.arcgis.com/4.3/esri/css/main.css">
<script src="https://js.arcgis.com/4.3/"></script>
<script>
function getRandomColor() {
var letters = '0123456789ABCDEF';
var color = '#';
for (var i = 0; i < 6; i++) {
color += letters[Math.floor(Math.random() * 16)];
}
return color;
}
require([
"esri/views/MapView",
"esri/Map",
"esri/layers/FeatureLayer",
"esri/layers/support/Field",
"esri/geometry/Point",
"esri/renderers/UniqueValueRenderer",
"esri/symbols/SimpleMarkerSymbol",
"esri/widgets/Legend",
"esri/request",
"dojo/_base/array",
"dojo/dom",
"dojo/on",
"dojo/domReady!"
], function(MapView, Map, FeatureLayer, Field, Point,
UniqueValueRenderer, SimpleMarkerSymbol, Legend, esriRequest,
arrayUtils, dom, on
){

// Création de la couche de points
var fields = [
{
name: "ObjectID",
alias: "ObjectID",
type: "oid"
},{
name: "lemme",
alias: "lemme",
type: "string"
},{
name: "formePhonique",
alias: "formePhonique",
type: "string"
},{
name: "commune",
alias: "commune",
type: "string"
}, ,{
name: "question",
alias: "question",
type: "string"
}
];
var pTemplate = {
title: "{question}",
content: [{
type: "fields",
fieldInfos: [{
fieldName: "lemme",
label: "Lemme",
visible: true
}, {
fieldName: "formePhonique",
label: "Forme phonique",
visible: true
}, {
fieldName: "commune",
label: "Commune",
visible: true
}]
}]
};

var features = [{geometry: new Point({
x: 9.123337,
y: 42.474312,
}),
attributes: {
ObjectID: 7885,
lemme: "tumbà",
formePhonique: "tumb'a",
commune: "Moltifao",
question: "'tuer' (le cochon)"
}
},{geometry: new Point({
x: 9.011969,
y: 41.640460,
}),
attributes: {
ObjectID: 34741,
lemme: "pulsà",
formePhonique: "pulz'a",
commune: "Granace",
question: "'tuer' (le cochon)"
}
},{geometry: new Point({
x: 9.253651,
y: 41.592664,
}),
attributes: {
ObjectID: 36089,
lemme: "tumbà",
formePhonique: "tumb'a",
commune: "Porto Vecchio",
question: "'tuer' (le cochon)"
}
},];
var map = new Map({
basemap: "gray"
});
var view = new MapView({
container: "viewDiv", // Reference to the DOM node that will contain the view
center: [9.15892639, 42.183238],
zoom: 9,
map: map // References the map object created in step 3
});
var tumbà = new SimpleMarkerSymbol({
color: getRandomColor(),
width: 10,
style: "solid"
});
var pulsà = new SimpleMarkerSymbol({
color: getRandomColor(),
width: 10,
style: "solid"
});
var defaultSymb = new SimpleMarkerSymbol({
color: "#123456",
width: 10,
style: "solid"
});

var myrenderer = new UniqueValueRenderer({
   defaultSymbol: defaultSymb,
defaultLabel: "Other major roads",
field: "lemme",
visualVariables: [
{
   type: "size",
   field: "lemme"
}],
uniqueValueInfos: [
{
value: "tumbà", // code for interstates/freeways
symbol: tumbà,
label: "tumbà"
},{
value: "pulsà", // code for interstates/freeways
symbol: pulsà,
label: "pulsà"
}, ]
});
var lyr = new FeatureLayer({
source: features,
fields: fields,
objectIdField: "ObjectID",
geometryType: "point",
renderer: myrenderer,
spatialReference: {
wkid: 4326
},
popupTemplate: pTemplate,
legendEnabled: true,
});
map.add(lyr);
var legend = new Legend({
view: view,
layerInfos: [{
layer: lyr,
title: "'tuer' (le cochon)"
}]
});
view.ui.add(legend, "bottom-left");

});
</script>
</head>
<body>
<div id="viewDiv"></div>
</body>
</html>

Re: Blank legend content

UndralBatsukh — Thu, 06 Jul 2017 18:26:16 GMT

You are setting wrong symbol style for SimpleMarkerSymbol. Please change the style as documented here and should work:

SimpleMarkerSymbol | API Reference | ArcGIS API for JavaScript 4.4

var defaultSymb = new SimpleMarkerSymbol({
color: "#123456",
width: 10,
style: "circle"
});

Re: Blank legend content

GueniotFlorian — Fri, 07 Jul 2017 12:04:45 GMT

Now it's working.

Thanks!

topic Re: Blank legend content in ArcGIS JavaScript Maps SDK Questions

Blank legend content

Re: Blank legend content

Re: Blank legend content