[Inkscape-user] Technical drawing / snapping

I'm really pleased to have discovered inkscape recently and it's fantastic that it's free and open source. In the past I've used autodesk autosketch (a cut down version of autocad) for "non-cad" scientific/technical illustrations for publication in papers etc.

One feature which I find makes drawing easier is the ability to set snapping constraints, like "endpoint", "midpoint", "centre", "tangent" when both drawing an element and selecting to transform an existing element (the cursor jumps and changes shape to indicate which snap is currently in action). I wondered if any similar feature exists in inkscape, or whether it might be considered for the roadmap?

Thanks