Need to draw path of non road or trails

[rescue1155]

Hi Maplace,

I am getting an error when drawing the route from A point to B, where B is not a road, trails or landmark, Its a jungle etc...
So, How can i draw the route using that.

Also please find the attached screenshot for your reference.

Here is in jungle maps.google.com draw the route and make it gray color where is no landmark, road or trails etc...