How can I get a straight UV map when I unwrap? I modelled this little wall in Blender and I dont know how to get the curve straight.
Can somebody help?

http://prntscr.com/g2ljc6

I changed a few things with my model and Im not sure how to get the x-scale of the selceted faces of the UV exactly like the x-scale of the faces underneath...

Does somebody know how to fix this?


Screenshot
A simple way to do this, if you don't want to unwrap again, is to select and scale the edges. Select the top edge of your curve like this:


Then press:


S
Y
0


The scaling result: (Repeat for the bottom edge)


Lastly scale the bottom edge along the X axis. The final result: