Merge pull request #4002 from ponv/master

Dynamic color for data points

@@ -626,10 +626,14 @@ export default abstract class LeafletMap {
       }
       this.points = new FeatureGroup();
     }
+    let pointColor = this.options.pointColor;
     for (const pointsList of pointsData) {
       pointsList.filter(pdata => !!this.convertPosition(pdata)).forEach(data => {
+        if (this.options.useColorPointFunction) {
+          pointColor = safeExecute(this.options.colorPointFunction, [data, pointsData, data.dsIndex]);
+        }
         const point = L.circleMarker(this.convertPosition(data), {
-          color: this.options.pointColor,
+          color: pointColor,
           radius: this.options.pointSize
         });
         if (!this.options.pointTooltipOnRightPanel) {

@@ -201,6 +201,8 @@ export type TripAnimationSettings = {
     pointAsAnchorFunction: GenericFunction;
     tooltipFunction: GenericFunction;
     labelFunction: GenericFunction;
+    useColorPointFunction: boolean;
+    colorPointFunction: GenericFunction;
 };
 
 export type actionsHandler = ($event: Event, datasource: Datasource) => void;

@@ -301,6 +301,7 @@ export class MapWidgetController implements MapWidgetInterface {
             labelFunction: parseFunction(settings.labelFunction, functionParams),
             tooltipFunction: parseFunction(settings.tooltipFunction, functionParams),
             colorFunction: parseFunction(settings.colorFunction, functionParams),
+            colorPointFunction: parseFunction(settings.colorPointFunction, functionParams),
             polygonColorFunction: parseFunction(settings.polygonColorFunction, functionParams),
             polygonTooltipFunction: parseFunction(settings.polygonTooltipFunction, functionParams),
             markerImageFunction: parseFunction(settings.markerImageFunction, ['data', 'images', 'dsData', 'dsIndex']),

@@ -871,6 +871,15 @@ export const pointSchema =
                 title: 'Point color',
                 type: 'string'
             },
+            useColorPointFunction: {
+                title: 'Use color point function',
+                type: 'boolean',
+                default: false
+            },
+            colorPointFunction: {
+                title: 'Color point function: f(data, dsData, dsIndex)',
+                type: 'string'
+            },
             pointSize: {
                 title: 'Point size (px)',
                 type: 'number',
@@ -899,6 +908,11 @@ export const pointSchema =
             key: 'pointColor',
             type: 'color'
         },
+        'useColorPointFunction',
+        {
+          key: 'colorPointFunction',
+          type: 'javascript'
+        },
         'pointSize',
         'usePointAsAnchor',
         {

@@ -112,6 +112,7 @@ export class TripAnimationComponent implements OnInit, AfterViewInit, OnDestroy
     this.settings.pointAsAnchorFunction = parseFunction(this.settings.pointAsAnchorFunction, ['data', 'dsData', 'dsIndex']);
     this.settings.tooltipFunction = parseFunction(this.settings.tooltipFunction, ['data', 'dsData', 'dsIndex']);
     this.settings.labelFunction = parseFunction(this.settings.labelFunction, ['data', 'dsData', 'dsIndex']);
+    this.settings.colorPointFunction = parseFunction(this.settings.colorPointFunction, ['data', 'dsData', 'dsIndex']);
     this.normalizationStep = this.settings.normalizationStep;
     const subscription = this.ctx.defaultSubscription;
     subscription.callbacks.onDataUpdated = () => {