Rotating Graphics

Question

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?

KritikaKumar · Answer

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..

SomeGISGuy · Answer

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.

KritikaKumar · Answer

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