Vista - Accessing intersection of overlaying elements

newbie question,

Scenario:

User allowed to drag and drop 'x' number of UIelements (Ellipses here ) on
canvas, when they overlap, the interesting regions need to be dynamically
coloured in a unique color.

How is this best achieved? How can intersecting regions be accessed from C#
code?

I looked at avalon Geometry stuff but could not see how it is possible?

TIA
Ranjit

In Java its smple as subracting one region from the other to provide the
intersection:

In the Java applet that I am converting its simple as:

Area area = new Area( element1.getArea() );

area.subtract( element2.getArea() );



Whats the C# equivalent anyone ???




"Ranj" <rsjoh@removethis.hotmail.com> wrote in message
news:uBLlZMHOGHA.3864@TK2MSFTNGP10.phx.gbl...
> newbie question,
>
> Scenario:
>
> User allowed to drag and drop 'x' number of UIelements (Ellipses here ) on
> canvas, when they overlap, the interesting regions need to be dynamically
> coloured in a unique color.
>
> How is this best achieved? How can intersecting regions be accessed from
> C# code?
>
> I looked at avalon Geometry stuff but could not see how it is possible?
>
> TIA
> Ranjit
>
>

Take a look at the Path(?) class. It supports boolean operations like
intersection, union etc.

Erno
----
WPF tutorials: http://blogs.infosupport.com/ernow/articles/1878.aspx


"Ranj" <rsjoh@removethis.hotmail.com> wrote in message
news:uBLlZMHOGHA.3864@TK2MSFTNGP10.phx.gbl...
> newbie question,
>
> Scenario:
>
> User allowed to drag and drop 'x' number of UIelements (Ellipses here ) on
> canvas, when they overlap, the interesting regions need to be dynamically
> coloured in a unique color.
>
> How is this best achieved? How can intersecting regions be accessed from
> C# code?
>
> I looked at avalon Geometry stuff but could not see how it is possible?
>
> TIA
> Ranjit
>
>