I’m very new to Rhino and switched from Sketchup. I imported a SVG image of a chair profile and it imported onto the xy plane. I tried to use the 3d rotate in perspective to make it vertical on the Z axis but instead of rotating the object selected it rotates the whole perspective view, i.e. starting with Z axis pointing straight up rotating 90 degrees the Z axis becomes horizontal pointing to the left.So, what I am doing wrong. I tried to follow a video exactly but it did not rotate the object instead it did as described.
Just select the image, click on one of the Gumball rotate handles and type 90 (degrees) and Enter. The rotate handles have arrows to indicate the rotation direction, input a minus value to rotate in the opposite direction.
There are at least a dozen other methods to do this…
It sounds like you may have rotated the view/camera rather than the object. What command/icon did you use for the rotation?
In the perspective view I used both the rotate 3d and the Gumball rotation. If I try to rotate the object on the xy plane it works as expected. It’s only when I try to rotate the object vertically to the z axis. When I do that the perspective rotates, not the object.
Are you using the command Rotate3D to rotate the objects to vertical? If so how are you setting the rotation axis?
Are you assuming rotating objects in Rhino is similar to rotating objects in SketchUp?
Switch to 4 viewport mode and reset the Cplanes by typing the command “4View” and enter, then again type “4View” and enter. You should see 4 viewports; Top, Front, Right, Perspective. The Cplanes should be reset to the defaults.
Rotate an object to vertical in the Perspective viewport. Does the object change position as expected in the Front and Right viewports?
Do other objects (not rotated) stay in the same position in the Front and Right viewports?
Do you have AutoAlignCplanes enabled?
I did the 4view cmd to reset to all of the views. Using the Gumball in the xy plane I can rotate the object in top, front and right views, i.e. works as expected. If I use it in the perspective view the view rotates not the object. AutoAlignCplanes is enabled.
AutoAlignCplanes with Mode=Object can result in the Cplane moving/rotating when the object it is aligned to is moved/rotated. This can look like the view is moving/rotating, not the object.
Do you have Standard construction planes or Universal construction planes set? If Universal construction planes then when the Cplane in one viewport changes the Cplanes in the other viewports also change.
Try this experiment:
Create two or more planar surfaces.
Rotate one surface.
Does it appear to rotate or does the other object(s) appear to rotate.
Disable AutoAlignCplanes and use Standard construction planes.
4View twice to reset views and construction planes.
Create two or more planar surfaces.
Rotate one surface.
The surface should appear to rotate in all four views. The other surfaces should not appear to rotate in any view.
I imported the leg profile of a dining chair as svg from vectrics. As noted, I was not able to rotate it to the Z axis only being able to rotate in the xy plane. I converted the svg import to a solid and now able to rotate it to the Z axis.
My guess: The difference is due to how AutoAlignCplanes works with planar objects compared to solids.
Did you try: