It would be great if all models were symmetric where everything landed in perfect 45 degree angles, however sometimes you’ll need to model members that don’t quite land on snap points. In RISA-3D and RISAFloor, there’s a Trim/Extend tool that allows you to modify member ends to be longer or shorter as need-be.
Below is an example of a truss with webs drawn too short and too long.
Trimming a member:
Extending a Member: