topic Re: How to make graphic not moving when zoom the map? in ArcGIS JavaScript Maps SDK Questions

How to make graphic not moving when zoom the map?

howard — Tue, 10 Aug 2021 03:40:58 GMT

Hi,

I have a question, I use SketchViewModel to draw the shape on map, I want to keep the shape located in center (not moving) when the zoom in/out the map; how can I implement it?

Thanks in advance.

Re: How to make graphic not moving when zoom the map?

LefterisKoumis — Tue, 10 Aug 2021 04:33:12 GMT

Use the center of the screen as the coordinates of your graphic.

var x = window.innerWidth / 2; var y = window.innerHeight / 2;

Re: How to make graphic not moving when zoom the map?

howard — Tue, 10 Aug 2021 05:09:15 GMT

Thanks LefterisKoumis.

If the shape is not in center, how make the shape looks like keeping statis position and size?

Re: How to make graphic not moving when zoom the map?

CourtneyMenikheim — Tue, 10 Aug 2021 16:16:33 GMT

This question is answered on this thread: https://community.esri.com/t5/arcgis-api-for-javascript-questions/how-to-make-graphic-not-moving-when-drag-the-map/m-p/1087330#M74222
(In case anyone else stumbles along looking for an answer)

Re: How to make graphic not moving when zoom the map?

howard — Wed, 11 Aug 2021 00:01:47 GMT

Hi CourtneyMenikheim

Your mentioned thread is keeping the shape not moved when moving the map; but how to keep the shape not scale and move (size and position looks like unchange in screen) when zooming the map; adjust the coordinates of shape seems that cannot get the desired effect.

Could you give some helps, thanks!

Thanks.

Re: How to make graphic not moving when zoom the map?

CourtneyMenikheim — Wed, 11 Aug 2021 13:21:44 GMT

To clarify, you want the shape:
- to be on the map
- to stay on the screen in the same spot, even as the user pans the map
- to stay the same size, even as the user zooms in and out

Is that correct?

Re: How to make graphic not moving when zoom the map?

howard — Thu, 12 Aug 2021 00:03:55 GMT

Yes, that is correct!

Thanks！