topic Re: map.CenterAndZoom zooms off point in ArcGIS JavaScript Maps SDK Questions

map.CenterAndZoom zooms off point

NovicaJosifovski — Wed, 01 Jul 2020 12:59:34 GMT

So I am trying to zoom in on a point with my following function but it zooms me way off course, far from the point which I need to be zoomed at.

map = new Map("map", {
basemap: "satellite", //For full list of pre-defined basemaps, navigate to http://arcg.is/1JVo6Wd
center: [21.403316, 42.002183],
zoom: 10
});

var dynamicMapServiceLayer = new ArcGISDynamicMapServiceLayer("http://62.162.113.130:6080/arcgis/rest/services/DUP_podlogi_Izvodi/MapServer", {
"opacity": 1
});
var secondLayer = new ArcGISDynamicMapServiceLayer("https://app.gdi.mk:6443/arcgis/rest/services/karpos/Karpos_Vector_Izvodi/MapServer", {
"opacity": 1
});
map.addLayers([dynamicMapServiceLayer, secondLayer]);
map.on("load", selectRoute);
function zoomToRoute(features) {
var num = features.features.length;
var map = this.map;
function zoomToRoute(features) {
var num = features.features.length;
var map = this.map;
map.graphics.clear();
var pointSymbolNew = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE, 10, new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, new Color([255, 255, 255]), 1), new Color([255, 0, 127, 1]));
var selectedFeature = features.features;
selectedFeature[0].setSymbol(pointSymbolNew);
map.graphics.add(selectedFeature[0]);
var lat = selectedFeature[0].geometry.x; //getLatitude();
var longs = selectedFeature[0].geometry.y; //getLongitude();
var point = new esri.geometry.Point({
latitude: lat,
longitude: longs
});
map.centerAndZoom(point, 3);
var factor = 3; //some factor for converting point to extent -->
var extent = new Extent(lat - factor, longs - factor, lat + factor, longs + factor, map.spatialReference);
map.setExtent(extent);
map.setScale(sentScale);
setTimeout(printImage, 1000);
}

I tried increasing and decreasing the factor value but still nothing. I also increased and decreased the levelOrFactor of centerAndZoom and it didn't help. Anyone has any idea what I'm doing wrong that it zooms me far off point?

Re: map.CenterAndZoom zooms off point

Noah-Sager — Wed, 01 Jul 2020 18:50:12 GMT

I didn't test it, but I wonder if you try using the x and y values for the location of the point like this:

var lat = selectedFeature[0].geometry.x; //getLatitude();
var longs = selectedFeature[0].geometry.y; //getLongitude();

var point = new esri.geometry.Point({
x: lat,
y: longs
});

Re: map.CenterAndZoom zooms off point

NovicaJosifovski — Wed, 01 Jul 2020 22:55:00 GMT

I tried that out and it just zooms me further away than before

Re: map.CenterAndZoom zooms off point

Noah-Sager — Wed, 01 Jul 2020 22:58:02 GMT

Ha, well, that wasn't the answer. Can you post a simple codepen?

Re: map.CenterAndZoom zooms off point

NovicaJosifovski — Wed, 01 Jul 2020 23:14:55 GMT

I'm trying to provide you with a codepen but my feature layers are not public, I'll try to get a working codepen version

Re: map.CenterAndZoom zooms off point

VictorTey — Thu, 02 Jul 2020 02:46:24 GMT

Hi Novica Josifovski‌, can you check you are using the same spatial reference system? e.g 3857 vs 4326

Re: map.CenterAndZoom zooms off point

NovicaJosifovski — Thu, 02 Jul 2020 13:59:48 GMT

Noah Sager‌

Since I cannot provide you with a Codepen, I'll try it like this.

I replaced my satellite basemap with this one, I thought that might be the issue. I set the proper WKID and extent.

Aaaand here is my printMap() function called on the click of the "Print map" button.
In the printMap() function, I call the zoomToRoute() function which I use to zoom on a point.

So, when I click the Print map button once, it takes me here - at the X, marked on the map. And I zoomed out quite a bit to shop the point on the map, which I also highlighted. So it zooms me quite a bit off point. But if I click the Print map button again, it takes me to the correct point on the map.

I tried to use map.centerAndZoom as well as map.centerAt but the same thing happens.

And the weirdest part of all is that I get this warning /error in the console

Map: Geometry (wkid: 4326) cannot be converted to spatial reference of the map (wkid: 6316)

I tripled checked all my layers /services. They are all the correct WKID, the one I need is 6316.