I have a situation.
I need to change the 3 dimensions of an object, but only by changing one dimension.
That is, if the object has the following dimensions:
High: 2 units (Z)
Width: 0.5 units (Y)
Depth: 0.1 units (X)
When I change the height of 2 units to 3 units, then the other width dimensions (Y) and depth (X) should automatically change to 0.75 and 0.15 respectively.
I do this using the S key:
I press the S key
I press the = key
After Income Division 3/2. 3 is the new dimension and 2 above.
But I would like to know. If there is a better way to do so through the properties panel (N key).
The options in the properties panel (N key), when I change the height of 2 units to 3 units, the width and depth do not change.
One way is to copy Z scale value and paste it to X and Y scale values.
Ctrl+C and Ctrl+V, just move mouse cursor to top of Z scale and copy and then same thing to X and Y with paste.
My guess is that the locks are there for animation purposes (or simply moving objects). The easiest example is a regular door; in real life, they can only rotate about one axis (along the hinges). So in Blender, locking the other two axis allows you to open/close the door simply by pressing ‘r’; and without worrying about your view direction, or needing to specify a rotation axis. Another example; if you’re arranging furniture in a house, and need all the furniture to remain on the floor (lock z position) and parallel to it (lock x and y rotation).