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Skewing the workplane (by Botfumbler)
I need to change the workplane to have skewed extrusions. I don't understand how this is supposed to work. I don't understand the procedure below. I tried it and it doesn't work. It goes back to activating default workplane after selecting workplane (line 6).
Procedure:
Ctrl+N ("File | New")
C ("Sketch | Circle") - draw a circle
Rotate view with middle button drag or Shift+ right button drag or F3 (for "View | Nearest Isometric | View")
3 ("Sketch | Anywhere in 3d")
"Sketch | Workplane"
Click on origin. A new "workplane" is created
Select the "workplane"
2 ("Sketch | In Workplane")
Shift+X ("New Group | Extrude")
Rotate view with middle button drag or Shift+ right button drag
https://github.com/solvespace/...ues/453#issuecomment-642508274
Procedure:
Ctrl+N ("File | New")
C ("Sketch | Circle") - draw a circle
Rotate view with middle button drag or Shift+ right button drag or F3 (for "View | Nearest Isometric | View")
3 ("Sketch | Anywhere in 3d")
"Sketch | Workplane"
Click on origin. A new "workplane" is created
Select the "workplane"
2 ("Sketch | In Workplane")
Shift+X ("New Group | Extrude")
Rotate view with middle button drag or Shift+ right button drag
https://github.com/solvespace/...ues/453#issuecomment-642508274
(no subject) (by ruevs)
I just followed my own instructions and it works. Did you select only the dashed line rectangle labeled "workplane" before pressing"2" (Sketch | In Work plane)?
(no subject) (by Botfumbler)
Thanks for the fast answer. I didn't even get to that point. I'm stuck in line 6/7. If you go to 3D and selecting a workplane it will go back to the one that exists. However, in a more general way the answer might point to the more general problem here: Assumptions in that "tutorial" about what one knows and therefore does without it being pointed out.
(no subject) (by Andrew)
The instructions work, but note the sketch | Worrkplane is the "Workplane" entry and not the "In Workplane" entry in the sketch menu.
For a defined plane, a point and two lines can be used to create it. Lines in3d can be constrained, and the constraints include an endpoint being set at a distance from each plane,, in effect its X,Y and Z ordinates, or the line can be set, and angles can be set between the line and the axis vectors.
For a defined plane, a point and two lines can be used to create it. Lines in3d can be constrained, and the constraints include an endpoint being set at a distance from each plane,, in effect its X,Y and Z ordinates, or the line can be set, and angles can be set between the line and the axis vectors.
(no subject) (by Botfumbler)
Ahh, right. There's anot one. I'll try,. I'm sure it's going to work now. Thanks.
(no subject) (by ruevs)
Also when sketching in 3D and selecting "Sketch | Workplane" it asks you in the text window to select a point (read it). When you select a point (the origin in my instructions) a wokplane is created parallel to the "screen surface" through the selected point.
(no subject) (by ruevs)
Here is some more information form the reference https://solvespace.com/ref.pl
The reference is not light reading but it is pretty good:
"To activate a workplane, select it, and then choose Sketch → In Workplane. When a workplane is activated, the view is aligned onto that workplane. (The workplane remains active until the user chooses Sketch → Anywhere In 3d, or a different workplane is activated. If the user rotates the view, so that the view is no longer aligned onto the workplane, then the workplane remains active.)
In a "Sketch in New Workplane" group, the group's associated workplane may be activated by choosing Sketch → In Workplane; there is no need to select it first."
and later
"Sketch Entities
Workplane
This entity is specified by a point and a normal. The point defines its origin, and the normal defines its orientation.
A workplane makes it possible to draw a section in 2d. If a workplane is active, then any entities that are drawn must lie in that workplane.
It's almost never necessary to create workplanes explicitly. Instead, create a new Sketch in New Workplane group."
The reference is not light reading but it is pretty good:
"To activate a workplane, select it, and then choose Sketch → In Workplane. When a workplane is activated, the view is aligned onto that workplane. (The workplane remains active until the user chooses Sketch → Anywhere In 3d, or a different workplane is activated. If the user rotates the view, so that the view is no longer aligned onto the workplane, then the workplane remains active.)
In a "Sketch in New Workplane" group, the group's associated workplane may be activated by choosing Sketch → In Workplane; there is no need to select it first."
and later
"Sketch Entities
Workplane
This entity is specified by a point and a normal. The point defines its origin, and the normal defines its orientation.
A workplane makes it possible to draw a section in 2d. If a workplane is active, then any entities that are drawn must lie in that workplane.
It's almost never necessary to create workplanes explicitly. Instead, create a new Sketch in New Workplane group."
(no subject) (by Paul)
I see 2 ways this could be better in future versions.
One would be to add an option in the text window to skew an extrusion. This would simply remove the 2 constraints that are automatically added to the extrusion line. Notice that this would allow the direction or angle of the skew to be determined by constraints in the extrude group rather than the orientation of a previously defined workplane.
Another option might be to add a Frustum group which would allow both skew and scaling of the "top" of the extrusion. This is something I tried to implement a couple years ago but wasn't quite happy with because of some UX issues.
One would be to add an option in the text window to skew an extrusion. This would simply remove the 2 constraints that are automatically added to the extrusion line. Notice that this would allow the direction or angle of the skew to be determined by constraints in the extrude group rather than the orientation of a previously defined workplane.
Another option might be to add a Frustum group which would allow both skew and scaling of the "top" of the extrusion. This is something I tried to implement a couple years ago but wasn't quite happy with because of some UX issues.
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