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Any tips on shearing/skewing an object? (#3448)
Rank: Senior Member
Joined: 8/14/2009(UTC) Posts: 444
Is there an easy way to shear or skew a solid? Like selecting a reference edge or two points (and maybe axis) to shear against? Kind of like the move face but to "distort" the entire solid.
Rank: Senior Member
Joined: 3/14/2007(UTC) Posts: 757
Rank: Senior Member
Joined: 11/4/2007(UTC) Posts: 515
Was thanked: 1 time(s) in 1 post(s)
The twist tool and the stretch tool can deliver a huge variety of distortions, including the ones you want. You're not restricted to a single entity, either, so you can use sacrificial solids that make the transformation easier to reference, or include multiple objects to one influential action.
zumer attached the following image(s):
distortions from twist tool.PNG
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Rank: Senior Member
Joined: 2/26/2007(UTC) Posts: 2,156
Was thanked: 1 time(s) in 1 post(s)
There is no specific tool at present for this - Tim knows it's something people want - so if people are keen to have this functionality - they should register their interest here ! I for one would welcome it !
Rank: Senior Member
Joined: 8/14/2009(UTC) Posts: 444
Thanks guys.. the Stretch and Twist are definitely functional tools to help create nice asymmetrical forms. Normally when I want to skew a rectangular prism for example, I have to go through all the following steps: step 1> convert prism to curves/lines step 2> deep select points at one end step 3> use gripper or translate tool to move selected points along an axis to a given distance step 4> re-create surfaces from all sides step 5> stitch surfaces together to form the new solid Now unless there's a much easier way to do this, doing this I lose my original primitive! This is why I want to have the selection tool to be much more efficient for example: 1) ability to select any vertices independently 2) ability to select any edges independently 3) ability to select any faces independently The deep select SHOULD be able to ALWAYS do this, but fails to much of the time. It seems to have odd rules for selecting and transforming. Sometimes I use SILO which is obviously better for Sub-D modeling, but I enjoy the fact that I can select said entities easily and manipulate them with what would be it's version of the "Gripper". This would be great for so many things including better freeform modeling but with exact measurements unlike in Silo. More+Better freeform modeling tools are always welcome!!!!
Rank: Senior Member
Joined: 11/4/2007(UTC) Posts: 515
Was thanked: 1 time(s) in 1 post(s)
That's not necessary. For example, use a block with the stretch tool. Nominate the midpoint of one edge as the starting point, and the diagonal opposite midpoint as the end of the stretched region. If the end point of the stretch transformation is an extension of the line between the first two points, the block is skewed symmetrically. It'll probably need reorientation, but the shape change can be done. The workflow you describe can be achieved for symmetrical skewing if you've used an extrusion or sweep from a profile instead of a primitive. Associativity with the profile and path means if you skew them, the solid skews too. You can also use the draft, move, match and replace face tools to achieve what you want using sequential actions that retain solid properties. You can do what you want to do, but not the way you want to do it. In fact, if you use a skin solid instead of a primitive, you can do it the way you want to as well.
zumer attached the following image(s):
skew.jpg
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Any tips on shearing/skewing an object? (#3448)
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