topic Re: Divide polyline by polygon or polyline in ArcGIS JavaScript Maps SDK Questions

Divide polyline by polygon or polyline

Vakhtang_Zubiashvili — Mon, 28 Jun 2021 09:43:25 GMT

Hello Guys, @RobertScheitlin__GISP @UndralBatsukh

I am going to cut (Split) line FL by polygon or polyline, no matter which one. I know there is a geometryEngine for this, but i could not find any working sample or hint how to use it.

Any help please how to do it.

Thank you and stay well and health

Re: Divide polyline by polygon or polyline

RobertScheitlin__GISP — Mon, 28 Jun 2021 13:12:28 GMT

@Vakhtang_Zubiashvili

You can find a sample here that showcases some of the geometryEngines features:

http://ekenes.github.io/esri-js-samples/ge-demo/

and the code can be found here.

https://github.com/ekenes/esri-js-samples/blob/master/ge-demo/index.html

Re: Divide polyline by polygon or polyline

Vakhtang_Zubiashvili — Tue, 29 Jun 2021 10:46:43 GMT

Thank you for replay Robert. Will this code work for 4.x API? I am using latest one. What i will need to change?

Thank you

Re: Divide polyline by polygon or polyline

RobertScheitlin__GISP — Tue, 29 Jun 2021 14:41:44 GMT

sorry I do not have a 4.x version link for you.

Re: Divide polyline by polygon or polyline

Vakhtang_Zubiashvili — Wed, 30 Jun 2021 22:48:34 GMT

Not even any small hint how to start, where to go, where to dig? 🤔

Re: Divide polyline by polygon or polyline

Vakhtang_Zubiashvili — Wed, 30 Jun 2021 22:49:33 GMT

@KenBuja Any idea? 😞

Re: Divide polyline by polygon or polyline

AnneFitz — Wed, 30 Jun 2021 23:28:47 GMT

Here's a more up-to-date version of the documentation that has a code snippet: https://developers.arcgis.com/javascript/latest/api-reference/esri-geometry-geometryEngine.html#cut

Re: Divide polyline by polygon or polyline

AnneFitz — Wed, 30 Jun 2021 23:35:16 GMT

And here's a very basic sample of it in use. I'm using the line to cut the polygon and just printing the resulting geometries to the console.

https://codepen.io/annefitz/pen/yLbywRr

Re: Divide polyline by polygon or polyline

JohnGrayson — Thu, 01 Jul 2021 00:34:54 GMT

Adding to the examples here's one using the sketch widget to interactively draw the polygon and polyline geometries that will be cut:

https://codepen.io/john-grayson/pen/oNWgObw

draw a polygon with any of the polygon tools
draw a polyline with the polyline tool
1. make sure it splits the polygon
  1. start and finish outside of the polygon
2. if we find an existing polygon:
  1. cut the polygon with the polyline
    1. if the cut is successful:
      1. the input polygon is removed and the cut results are added

Re: Divide polyline by polygon or polyline

Vakhtang_Zubiashvili — Thu, 26 Aug 2021 09:42:04 GMT

Thank you everyone for help 😍