I would like to check if there is this kind of tool/addon is available in Blender. I have been using Sketchup for quite some time but I see that Blender has improved so much lately that it is time to start learning it.
When drawing with Sketchup I think that one of the most essential tools has been Tape Measure tool, which can be used for drawing construction lines (http://help.sketchup.com/en/article/95005). I know that modeling workflow in Blender is fundamentally different but still I think that construction lines are just great when editing geometry and placing items in exact positions, for example in below picture I have placed a cylinder in exact position with the help of construction lines. Do you know any functionality or addon that would have the ability to draw similar construction lines or guides for placing objects in the model?
Video of Tape Measure Tool: