Obviously they didn't push the explanations for the sketches far enough, you can just find it at the bottom of the page but still nothing on the strikethrough.
I just figured out why sketch icons are crossed out or not. This state changes depending on whether the "show/hide" box to the right of the sketch is enabled or not.
On the other hand, despite the explanation at the bottom of the post page above, I can't understand why the icon takes a "C" shape or the shape of a pierced polygon.
Hello Here is the explanation: - The classic sketch is a properly closed sketch and the icon is the one
- The sketch that uses one or more regions has this icon there: When there are multiple possible contours, or the shape has lines that overflow an outline, SolidWorks does not know how to extrude a volume without being told which contour(s) is to be extruded
In this box, we choose the contour(s) to make the volume. For example, if I have a resctangle of sketching with an overflowing stroke, it doesn't know where the closed outline is:
I then click in the rectangle to specify the desired region
Another example, I have several closed contours, SolidWorks doesn't know by default which one(s) to extrude. I then specify in the "Selected contours" window the regions I want to extrude. Example;
I drew a sketch with several closed contours; if I extrude, SoliWorks doesn't know what the right contour is. I specified the 2 regions where I wanted material and SolidWorks extruded them for me.
I don't remember that in 2016 or before the fact of hidden made a bar, but no longer change the icon from blue to visible to black to hidden, and grayed out if "deleted" therm which still hasn't changed and not very logical.