I’m almost with Anssi here, the single most important thing missing in Sketchup for BIM is a part of Building called windows and doors.
We can easily design them, we can easily place them, we can easily design the holes they are going to fit in, we can easily turn them into components and copy multiple, we can easily change them and stretch them (Fredo Tools Stretch to target even makes using DC’s only useful for open/close with interact tool)…
The only thing we cannot easily do is change them back and forth and make the hole on the wall change with them. There is no hole in the wall to start with. The closest thing there is is a hole in one of the faces or a pushpull to a parallel face. If things get different than that basic scenario, they start getting unintuitive and start consuming time…
The way single face hole cutting components work right now is, simply put, not enough. Double face cutting components or double hole cutting components, (the method wich uses double cutting components) is also not enough. They get out of place if moving/stretching a face, they unglue when splitting a face, if a face bends on a hole cutting component it ceases to work, etc…
With 90º angles all is more or less easily doable but for any other stuff it’s incredibly demanding…
The result is a lot of pushpulling, solidtools working, intersect faces with (model, context, selection…) and an incredible time needed to rework 100 windows. Imagine that SU is to be used on bigger stuff, 100 windows are not that much, but changing a project with so many in SU is tedious at best. This is the main reason people are interested in BIModelling plugins to start with as all else is easily modelled in SU.
Therefore, on our path to BIM we don’t need parametric that much in SU, we all love it because it’s different and way better than that (though it would help to revise DC’s to something intuitive/graphical…) What we need is components that:
- Cut holes double faces including diagonal faces and multiple faces, no matter what the distance they are away from the first gluing face, no matter what context the second face is (same group/component or completely different);
- Be placeable on any set of faces, surfaces, outside of groups and components and still affect those groups and components.
- Can work on more complex stuff, subtracting geometry from 1 face, 2 faces, surfaces or solids on the fly. Something that could effectively replace the work people have to do nowadays with several pushpulls, intersect faces, solid tools or any other complex method.
- Would have effective and intuitive control on what to cut holes into and wich shape to cut holes with.
With that the most important part of modelling would be covered, and you could keep focusing as you are on the classifier for the Building Information part of BIM and the nice reports so few of us need.
Basically there is no building without windows and doors and these are not being taken care of…