Maya UV Mapping

[Leviathan Flux]

I am running into issues with creating UV texture maps in Maya 2011.  For some objects, I am able to make a proper map the way I like, but for others, I run into an issue where a polygonal face is mapped as a flat line in the UV map.  Sometimes half of a wall of a building will be alright, then the top half is a line, and then no matter what I do, the texture on it ends up looking infinitely stretched out because I can't scale it on the UV map.    

If you know what this could be, please let me know.  I am attaching a screenshot to help.  I put a texture on to show how it stretches and big red arrows for direction.  On the bottom, you can see the corresponding UV map for the four floor faces.  

[York Jessop]

Are you using automatic mapping? if so try increasing the number of planes it uses I found I get better results even tho its not perfect.

 

[Leviathan Flux]

Thanks, York.  I was just trying to map it by selecting the faces I was trying to map and then moving the corresponding parts in the UV editor, but I have figured out a better method now using planar mapping based on camera position which works great for having more control over pretty flat surfaces, but fairly tedious.  So I am starting to implement auto-mapping more for some of the smaller faces.  I'll try playing with adding number of planes too.