/* Copyright (c) 2015 Jean-Marc VIGLINO,
released under the CeCILL-B license (French BSD license)
(http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt).
*/
import ol_Map from 'ol/Map.js'
import {transform as ol_proj_transform} from 'ol/proj.js'
import {unByKey as ol_Observable_unByKey} from 'ol/Observable.js'
import {easeOut as ol_easing_easeOut} from 'ol/easing.js'
import ol_style_Circle from 'ol/style/Circle.js'
import ol_style_Stroke from 'ol/style/Stroke.js'
import ol_style_Image from 'ol/style/Image.js'
import ol_style_Style from 'ol/style/Style.js'
import ol_geom_Point from 'ol/geom/Point.js'
/** Pulse a point on postcompose
* @deprecated use map.animateFeature instead
* @param {ol.coordinates} point to pulse
* @param {ol.pulse.options} pulse options param
* - projection {ol.projection||String} projection of coords
* - duration {Number} animation duration in ms, default 3000
* - amplitude {Number} movement amplitude 0: none - 0.5: start at 0.5*radius of the image - 1: max, default 1
* - easing {ol.easing} easing function, default ol.easing.easeOut
* - style {ol.style.Image|ol.style.Style|Array
} Image to draw as markup, default red circle
*/
ol_Map.prototype.pulse = function(coords, options) {
var listenerKey;
options = options || {};
// Change to map's projection
if (options.projection) {
coords = ol_proj_transform(coords, options.projection, this.getView().getProjection());
}
// options
var start = new Date().getTime();
var duration = options.duration || 3000;
var easing = options.easing || ol_easing_easeOut;
var style = options.style;
if (!style) style = new ol_style_Circle({ radius:30, stroke:new ol_style_Stroke({color:'red', width:2 }) });
if (style instanceof ol_style_Image) style = new ol_style_Style({ image: style });
if (!(style instanceof Array)) style = [style];
var amplitude = options.amplitude || 1;
if (amplitude<0) amplitude=0;
var maxRadius = options.radius || 15;
if (maxRadius<0) maxRadius = 5;
/*
var minRadius = maxRadius - (options.amplitude || maxRadius); //options.minRadius || 0;
var width = options.lineWidth || 2;
var color = options.color || 'red';
console.log("pulse")
*/
// Animate function
function animate(event) {
var frameState = event.frameState;
var ratio = frameState.pixelRatio;
var elapsed = frameState.time - start;
if (elapsed > duration) {
ol_Observable_unByKey(listenerKey);
} else { var elapsedRatio = elapsed / duration;
var context = event.context;
context.save();
context.beginPath();
var e = easing(elapsedRatio)
context.globalAlpha = easing(1 - elapsedRatio);
// console.log("anim")
for (var i=0; i