Hi Marco, so one trick that could work to make a "double wide" single smooth surface based off of what you've already got is to use Transform > Deform > Flow.
The way you would set it it up is to draw planes like this, with one wider than the other:
Then select only the wide surface (narrower one should be unselected) for the one to be transformed and run Transform > Deform > Flow.
Now at the "Select base surface" prompt select the thinner surface as the base surface. The location that you click on the base surface is significant, you need to click on a matching point between the base and the target surface. See the help file topic for Flow for some more details on this (
http://moi3d.com/3.0/docs/moi_command_reference8.htm#flow). So for example a good location to click on it is here: (also if the other one gets in the way since it is stacked up on the same area, you can use Edit > Hide to hide it):
Then at the next prompt in the Flow command for selecting the target surface select here, again note the point location is significant. You want to click not exactly in the corner, the spot you want is actually along the edge but towards one side of the edge, the same side as you picked for the base point:
That will make an extended surface like this:
This is one wide smooth surface but note that it is self intersecting which will tend to cause problems with intersection calculations later on. To cure this, use Edit > Trim with the "Isocurve" option to slice the surface on the bottom so it is in 2 halves and then use the "ShrinkTrimmedSrf" command: (type tab and then type ShrinkTrimmedSrf and then type Enter) to make sure the "underlying surface" of each piece is shrunk down so there isn't any self intersections. If you turn on surface control points before you do the ShrinkTrimmedSrf on one piece at a time you can see what it does.
So now you've got a wider single surface to cut up, Edit > Trim with the Isocurve option could be a convenient way to cut it. If you use Isocurve direction = "both" and place a spot like this for the isocurve cutters:
Then in the next step for Trim select this area as the piece to discard:
And it will make a result like this:
That's probably worth a try since it could be kind of inconvenient to form the longer cutting object otherwise.
In the Top view maybe draw in a perpendicular line to square up this area here:
Cutting with isocurves means that it will cut along the natural control point grid shape.
- Michael
