I am trying to use slider to animate openlayers marker move. It should be similar to this example http://openlayers.org/en/v3.12.1/examples/feature-move-animation.html but the only difference is that I dont want marker to move automatically (through animation) but on slider value change.
Slider represents something like timeline of current route. I am using following code to acomplis it:
dateSlider.noUiSlider.on('update', function( values) { var date = new Date(+values); points_array.forEach(function(entry) { if(dateString(date) == entry['time']){ geoMarker.setGeometry = new ol.geom.Point([parseFloat(entry['lon']), parseFloat(entry['lat'])]); geoMarker.getGeometry().transform('EPSG:4326', 'EPSG:3857'); map.render(); } });});first problem is that slider step is one second and it is too much load to iterate through all array values so the geometry set event is fired only when I move slider very slowly. However this is not actual problem because I can fix this by using a bit different approach. But the problem is that when I try to set new geometry everything from vectorLayer (it contains route + all icons and marker) dissapears.
So what is the correct way to update feature location without making whole layer dissapear?
Thanks in forward
أكثر...
Slider represents something like timeline of current route. I am using following code to acomplis it:
dateSlider.noUiSlider.on('update', function( values) { var date = new Date(+values); points_array.forEach(function(entry) { if(dateString(date) == entry['time']){ geoMarker.setGeometry = new ol.geom.Point([parseFloat(entry['lon']), parseFloat(entry['lat'])]); geoMarker.getGeometry().transform('EPSG:4326', 'EPSG:3857'); map.render(); } });});first problem is that slider step is one second and it is too much load to iterate through all array values so the geometry set event is fired only when I move slider very slowly. However this is not actual problem because I can fix this by using a bit different approach. But the problem is that when I try to set new geometry everything from vectorLayer (it contains route + all icons and marker) dissapears.
So what is the correct way to update feature location without making whole layer dissapear?
Thanks in forward
أكثر...