topic Re: Rotating Graphics in .NET Maps SDK Questions

Rotating Graphics

KritikaKumar — Wed, 26 Jul 2017 18:13:04 GMT

I am developing a simple map application , in which user can draw shapes (say, rectangle ) on map .The users also have the flexibility to rotate the shapes. .The part where I am stuck is that i need to know this angle of rotation , by which the user rotated the shapes before completecommand was executed. Has anyone figured this out before?

Re: Rotating Graphics

dotMorten_esri — Thu, 27 Jul 2017 17:17:53 GMT

The amount a geometry was rotated is not exposed.

Re: Rotating Graphics

KritikaKumar — Thu, 03 Aug 2017 22:30:59 GMT

Hi..Thanks for replying ! Do you have any pointers about how can it be found ? I need that angle of rotation for my application.

Re: Rotating Graphics

dotMorten_esri — Thu, 03 Aug 2017 22:58:17 GMT

The only way I can thing of is trigonometry. For instance check the angle between the first vertex and second vertex before and after the edit.

Re: Rotating Graphics

KritikaKumar — Thu, 03 Aug 2017 23:01:57 GMT

Thanks for the help. ..I will try to work in that direction.Also, I am not sure how to find the vertices of the user drawn polygon.I can see that extent class provides the xmin.xmax,ymin,ymax , but not the vertex co-ordinates. Please let me know ,how to find the vertex coordinates..