topic Re: Access Basemap Value in ArcGIS JavaScript Maps SDK Questions

Access Basemap Value

ChrisSeeger — Tue, 05 Feb 2013 01:32:55 GMT

I would like to access and reset the value for the basemap and zoom via a javascript form field. my question is how to I access these. I am able to acces the map width but not these three items.

function init() {
      map = new esri.Map("map", {
        center: [-31.036, 42.747],
        zoom: 8,
        basemap: "streets"
      });

Re: Access Basemap Value

StephenLead — Fri, 10 Dec 2021 23:11:32 GMT

I would like to access and reset the value for the basemap and zoom via a javascript form field. my question is how to I access these. I am able to acces the map width but not these three items.
  function init() {
   map = new esri.Map("map", {
   center: [-31.036, 42.747],
   zoom: 8,
   basemap: "streets"
      });

You can get to the array of basemaps using map.basemapLayerIds, so the first basemap will be map.basemapLayerIds[0]

map.getZoom() will return the zoom level while map.setZoom(10) will set the level.

Cheers,
Steve

Re: Access Basemap Value

ChrisSeeger — Tue, 05 Feb 2013 18:25:12 GMT

Found this in the whats new at 3.3
Two new map methods, getBasemap and setBasemap, make switching basemaps easy. setBasemap accepts one of the strings mentioned....

http://help.arcgis.com/en/webapi/javascript/arcgis/jshelp/#whats_new

Re: Access Basemap Value

StephenLead — Tue, 05 Feb 2013 20:21:52 GMT

Cool, that looks much easier.