Author Topic: Sketchup problem  (Read 1281 times)

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Chris333

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Sketchup problem
« on: November 23, 2020, 04:51:12 PM »
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I keep running into this problem on Sketchup where I zoom in on an area to get into some details and part of my drawing disappears. It is like I zoom in so far that the part that would be sticking out of my screen gets cut away. And this isn't letting me zoom in as close as needed. It is a pain.

Any idea what this is called so I can search for getting rid of it?

narrowminded

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Re: Sketchup problem
« Reply #1 on: November 23, 2020, 04:56:38 PM »
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I have no idea. :?  I haven't experienced that problem.
Mark G.

Chris333

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Re: Sketchup problem
« Reply #2 on: November 23, 2020, 05:02:58 PM »
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Corner of a cab:


And I zoom in:

narrowminded

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Re: Sketchup problem
« Reply #3 on: November 23, 2020, 05:42:45 PM »
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OK, maybe...   :|

This looks something like what I've experienced when drawing with snaps to points or after repeatedly stretching and shrinking a feature.  It can look correct but in fact has generated various really short line segments, not necessarily perfect to a line intersection, and then when additional intersections are made it requires the features to have a very slight twist to them, rendering as small triangles that are attempting to fill in a closed flat surface, but one that is in fact slightly twisted.  Those get messy and only get worse when messed with.  Zooming WAY in sometimes reveals these subtleties if they exist, confirmed by snapping to points when zoomed WAY in.  Once one has gotten balled up  I've found that just removing all of the lines in the troublesome area and redrawing the feature from virgin points is the best, if not the only, way to fix this when it happens. 

That might sound like a real problem but it's most likely to occur after a lot of subtle, small edits and by the time it's surfacing with the triangle problems I usually have the detail sorted, complete with good dimensions, so it is usually quick and easy to redraw with clean lines. 

I don't know if that helps but it's all I've got at this point. :|
Mark G.

Chris333

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Re: Sketchup problem
« Reply #4 on: November 23, 2020, 05:46:39 PM »
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Anywhere I zoom in does the same, not just one area.

For fun I just drew a 1" cube and zoomed in on the corner. It did the same thing.

narrowminded

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Re: Sketchup problem
« Reply #5 on: November 23, 2020, 05:57:12 PM »
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Anywhere I zoom in does the same, not just one area.

For fun I just drew a 1" cube and zoomed in on the corner. It did the same thing.

 :?  I don't know what to make of that. :?
Mark G.

Chris333

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Re: Sketchup problem
« Reply #6 on: November 23, 2020, 06:11:10 PM »
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It is probably something I accidently turned on, but I don't even know what to look for.

narrowminded

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Re: Sketchup problem
« Reply #7 on: November 23, 2020, 06:33:19 PM »
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On that cube that you drew, if you place a diagonal line on one face, corner to corner, does that fill in that face?  :|  If it does, that would be an indicator of the problem that I was describing.
Mark G.

Chris333

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Re: Sketchup problem
« Reply #8 on: November 23, 2020, 06:35:58 PM »
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Not sure I understand because all surfaces of a cube get filled in as soon as you close each section off.

narrowminded

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Re: Sketchup problem
« Reply #9 on: November 23, 2020, 06:45:23 PM »
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Not sure I understand because all surfaces of a cube get filled in as soon as you close each section off.

Yes, but I was thinking of a void in one of the lines that was making it not closed.  A diagonal line might close at least a triangle, filling that face in, if that was the problem.  I'm really stabbing here as I can't think of anything that would definitely do what you're experiencing.  Could it be something where you've got a component or group command turned on that has this on a different layer, outside the group? :|  Again, just stabbing in the dark with nothing confident. :(  Sorry.
Mark G.

peteski

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Re: Sketchup problem
« Reply #10 on: November 23, 2020, 08:19:00 PM »
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When I played with SketchUp few years back I  have seen something similar.  I think it zooms you past the outer wall of the object, so it shows the details of the inside of the object while cutting away the outside surface.  Like a cutaway drawing. I hope that makes sense to you and I don't know if it is a bug or a feature.
. . . 42 . . .

nickelplate759

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Re: Sketchup problem
« Reply #11 on: November 23, 2020, 09:34:26 PM »
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Having worked on a few different CAD packages, as a developer  not  a user, what you are seeing is the effect of the front clipping plane.  It means you have zoomed really close to your model.  It shouldn't affect the model data.
George
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I'm sorry Dave, I'm afraid I can't do that.

wcfn100

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Re: Sketchup problem
« Reply #12 on: November 23, 2020, 09:42:08 PM »
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I'll agree with George that it's a clipping plane issue.  When it does this, what happens when you do a view orbit (look around the model)?  Does the model stay centered in the window or does it shoot off the screen?


Jason

Chris333

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Re: Sketchup problem
« Reply #13 on: November 23, 2020, 10:17:16 PM »
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It does seem like the model will shoot off the screen at times.

So how do I stop the clipping plain? I need to be able to zoom in.

Chris333

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Re: Sketchup problem
« Reply #14 on: November 23, 2020, 10:23:39 PM »
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Well it looks like there are ways to fix it now that I know what to search for.