Roof Inference Locking Sketchup

It is a key skill for fast and efficient sketchup use.

Roof inference locking sketchup.

The edge gets thicker to let you know it s locked and now you can draw only in the blue direction no matter where you move the cursor. This sketchup tutorial will teach you how to use the inference lock technique and show a few examples of inference locking in use and the advantages it has for modeling and navigating the sketchup viewport. Hold down the shift key to lock the inference you see. Hold down the shift key to lock the inference you see.

This signifies that the image has been locked. You will also use arrays and copying to create dormers. Release shift to unlock the inference. Once you do notice the blue box around it turns to red.

To do it you have two ways firstly select it then either go to the edit menu and choose the lock option or simply right click and select the same option from there. The edge gets thicker to let you know it s locked and now you can draw only in the blue direction no matter where you move your cursor. Another reason to lock an inference is to maintain one drawing direction while you reference geometry from another part of the model. Click where you want the edge to end.

Finding and locking an inference sketchup has an inference engine that helps you work in 3d space. Lock the illustration next to it as well. Inference locking is the ability to draw or move in only one direction and still reference other geometry. For example when the line tool cursor is hovering over the midpoint of another line the inference engine tells you by displaying a light blue dot and screentip that says midpoint as shown here.

As a follow up video to inference locking this google sketchup tutorial shows how to combine a series of roof forms together using inference locking. For your line click the peak of the roof to make your vertical edge end at exactly that height. Please keep in mind this isn t a video on roofs but an example of various inference locking techniques and how they work in google sketchup.