windows phone 8 - How do I highlight area in a map? -

i want highlight area in map, can area (irregular shape). suggestions, how can achieve using 1. windows phone 8.1 map control 2. third party maps

i can pushpins in map control, have highlight area.

help appreciated?

regards

quick internet search returns following results:

• http://dotnet.dzone.com/articles/drawing-circles-windows-phone?utm_source=feedburner&utm_medium=feed&utm_campaign=feed:+zones/dotnet+%28.net+zone%29
• http://dotnetbyexample.blogspot.com/2014/02/drawing-translucent-shapes-and-lines-on.html

please more specific in questions next time. if doing research, try searching problem in internet before asking questions here. site answering concrete questions unable find solutions for.