topic Re: Extent in ArcGIS JavaScript Maps SDK Questions

Extent

irtizahussain — Thu, 20 Dec 2018 10:05:39 GMT

I want to fix the zoom out extend , in my code zoom in extend is working fine but i want to set zoom out extend as well.

this is the code where min is fine but max is not working !!

zoom: 5,
constraints: {
altitude: {
min: 100, //for zoom in
max: 10210 //for zoom out
}

Re: Extend

irtizahussain — Thu, 20 Dec 2018 10:40:38 GMT

Where i'm using MapView, 4x version in my project.

Re: Extent

RobertScheitlin__GISP — Sun, 12 Dec 2021 07:51:34 GMT

Irtiza,

Not sure how you can up with the altitude property in the constraints for a MapView. Altitude is only for a SceneView.

Here is how you set the min and max scale for a MapView:

view.constraints = {
  minScale: 500000,  // User cannot zoom out beyond a scale of 1:500,000
  maxScale: 0  // User can overzoom tiles
};‍‍‍‍

Re: Extent

irtizahussain — Fri, 21 Dec 2018 10:44:56 GMT

Sir, this is not working on my project.

Re: Extent

RobertScheitlin__GISP — Fri, 21 Dec 2018 13:33:49 GMT

Irtiza,

I would have to see how you added that to your code then, because that works fine for me.

Re: Extent

irtizahussain — Mon, 24 Dec 2018 12:54:48 GMT

sir i already posted the code above which i used to set extend.

Re: Extent

RobertScheitlin__GISP — Mon, 24 Dec 2018 13:51:50 GMT

I am asking you to post your full code after my suggested code change. You have to have something wrong in your code.

Re: Extent

Noah-Sager — Wed, 26 Dec 2018 21:27:44 GMT

irtiza hussain what Robert posted is correct. The 2D MapView does not contain an altitude property. Please refer to the documentation here:

MapView | API Reference | ArcGIS API for JavaScript 4.10

However, if you are working with a 3D SceneView, then your code looks fine to me. Here is an example app showing what I think you are trying to accomplish:

SceneView Constraints

Do you see any errors in the browser console? Please feel free to refer to the relevant documentation here:

SceneView | API Reference | ArcGIS API for JavaScript 4.10