How to change the texture orientation for Ground Polygons???

[cazador]

Dear All:

Is there a way to change the texture orientation(Default is North-South) to it
has another orintation, for example the orientation of my airport runway?

I want to create concrete textures for my apron, but i want that its have the
same orientation of my airpot buildings.

I have tryed to make ground polygons with FSDS, but i have troubles with big
and complex aprons.

Any ideas?


Thanks.
Alfredo Mendiola Loyola
Lima Peru