# Gif example: I get no face on exploded (imported) image

**URL:** <https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272>\
**Category:** SketchUp\
**Created:** [January 31, 2017, 2:28pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272 "2017-01-31T14:28:32Z")\
**Posts on this page:** 16\
**Page:** 1

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**Author:** ![HansH](https://avatars.discourse-cdn.com/v4/letter/h/ed655f/32.png) [@HansH](https://forums.sketchup.com/u/HansH)\
**Post date:** [January 31, 2017, 2:28pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/1 "2017-01-31T14:28:32Z")

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Hey,  
in some cases I don’t get a face when I connect lines. It happens when I’m drawing over an exploded image. I’ve created a little example. The lines are parallel to the correct axis (they are green and red if i change the color style to ‘by axis’).

 ![](https://global.discourse-cdn.com/sketchup/original/3X/d/c/dcb80f65b630cafc382e92c166c981e16852dfc1.gif)  
Do I have to draw over the individual lines each time?

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**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\
**Post date:** [January 31, 2017, 2:31pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/2 "2017-01-31T14:31:44Z")

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What happens if you draw over an unexploded image? Why do you explode the image anyway?

Set the precision as high as it will go and then check the Z coordinates of all the intersections and endpoints using the Text tool. Are they all exactly the same?

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**Author:** ![HansH](https://avatars.discourse-cdn.com/v4/letter/h/ed655f/32.png) [@HansH](https://forums.sketchup.com/u/HansH)\
**Post date:** [January 31, 2017, 2:34pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/3 "2017-01-31T14:34:15Z")

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If I don’t explode the image, the faces are created fine.

I explode the image because I saw this in a tutorial. It’s easy to draw over a floor plan: if the image is exploded, the walls get the texture of the plan so you can see where the windows are and stuff…

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**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\
**Post date:** [January 31, 2017, 2:35pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/4 "2017-01-31T14:35:23Z")

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I would suggest waiting until after you’ve drawn the floor plan before exploding the image. this will make it easier to avoid reversed faces.

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**Author:** ![ViggoPaulman](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/viggopaulman/32/261002_2.png) [@ViggoPaulman](https://forums.sketchup.com/u/ViggoPaulman)\
**Post date:** [January 31, 2017, 2:37pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/5 "2017-01-31T14:37:20Z")

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That happens some times. I think it’s one of those old bugs, that got stuck since the old versions.

For me, selecting all geometry and choosing Intersect Faces \> With Selection works, sometimes. Other times I shift to Wireframe Mode \> select all edges \> Ctrl+X \> Ctrl+Shift+V (Paste in Place) \> And use the Make Face plugin to generate meshes.

Here’s a similar problem that I faced a long while ago:

> [@Face Won't Intersect With Edges](https://forums.sketchup.com/t/face-wont-intersect-with-edges/22129):
>
> Hi everyone. I’m in the middle of a project and I’ve come across this problem. No matter what I try to do the edges and this face won’t intersect. I’ve tried all the intersect commands, copying the wireframe and pasting it in a different file, manually redrawing all the edges, using the Make Face plugin, copying the whole thing and pasting in the same place… Nothing works. Can someone please help me figure this out? I’d be very grateful. I’ve come across this issue many times before but I was a…

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<div class="post-metadata">

**Author:** ![HansH](https://avatars.discourse-cdn.com/v4/letter/h/ed655f/32.png) [@HansH](https://forums.sketchup.com/u/HansH)\
**Post date:** [January 31, 2017, 2:39pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/6 "2017-01-31T14:39:25Z")

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The Z-coordinates seem fine (I hope I understood correctly, didn’t know the text tool yet) :

 ![](https://global.discourse-cdn.com/sketchup/original/3X/f/0/f0d5b2eb62b1f566a00529f48a3c843cba0fb390.png)

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<div class="post-metadata">

**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\
**Post date:** [January 31, 2017, 2:40pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/7 "2017-01-31T14:40:21Z")

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Increase the precision as high as it will go. Use millimeters instead of meters, too.

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<div class="post-metadata">

**Author:** ![HansH](https://avatars.discourse-cdn.com/v4/letter/h/ed655f/32.png) [@HansH](https://forums.sketchup.com/u/HansH)\
**Post date:** [January 31, 2017, 2:47pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/8 "2017-01-31T14:47:44Z")

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![](https://global.discourse-cdn.com/sketchup/original/3X/b/a/bac5eb3ee6689b7d49967114edaac91c3a601a73.png) The Z looks fine I think…  
Thanks for the link VahePogossian, I’m checking it out…

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<div class="post-metadata">

**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\
**Post date:** [January 31, 2017, 2:50pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/9 "2017-01-31T14:50:51Z")

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OK. It’s not uncommon for users to be very slightly off axis which can create issues. There is a tolerance so that you can be almost on axis and still get the colored trailing line but be off axis enough to result in no face.

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**Author:** ![slbaumgartner](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/slbaumgartner/32/7302_2.png) [@slbaumgartner](https://forums.sketchup.com/u/slbaumgartner)\
**Post date:** [January 31, 2017, 3:18pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/10 "2017-01-31T15:18:08Z")

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What Dave forgot to say is that you can avoid that particular problem by paying scrupulous attention to inference engine snaps.

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**Author:** ![TIG](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/tig/32/198_2.png) [@TIG](https://forums.sketchup.com/u/TIG)\
**Post date:** [January 31, 2017, 3:52pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/11 "2017-01-31T15:52:01Z")

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Also the quicker way to trace over an image of a floor plan is to use the rectangle tool.  
This auto-faces and since the two snapped corners are on the image it’s flat…  
By over drawing and overlapping rectangles you can quickly get the room’s outlines.  
A few added lines if needed…  
After that you can do some judicious erasing to merge some outlines together…

 ![](https://global.discourse-cdn.com/sketchup/original/3X/6/3/637749ee3b610ca02f357f53fb1cc825f973cf15.png)

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<div class="post-metadata">

**Author:** ![HansH](https://avatars.discourse-cdn.com/v4/letter/h/ed655f/32.png) [@HansH](https://forums.sketchup.com/u/HansH)\
**Post date:** [January 31, 2017, 5:30pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/12 "2017-01-31T17:30:16Z")

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thanks for the hint. In my case (and with my old floor plan and limited experience) it was easier to draw the lines individually 🙂

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<div class="post-metadata">

**Author:** ![HansH](https://avatars.discourse-cdn.com/v4/letter/h/ed655f/32.png) [@HansH](https://forums.sketchup.com/u/HansH)\
**Post date:** [January 31, 2017, 5:40pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/13 "2017-01-31T17:40:55Z")

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hey slbaumgartner, I have no idea about the things you are talking about…?

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**Author:** ![slbaumgartner](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/slbaumgartner/32/7302_2.png) [@slbaumgartner](https://forums.sketchup.com/u/slbaumgartner)\
**Post date:** [January 31, 2017, 6:59pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/14 "2017-01-31T18:59:58Z")

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The little markers and tooltips that pop up as you move your cursor while drawing. Scroll down and read the sections about inferences on this help page:

> **[Introducing Drawing Basics and Concepts | SketchUp Help](https://help.sketchup.com/en/sketchup/introducing-drawing-basics-and-concepts)**
>
> Drawing a model in 3D is different from drawing an image in 2D. This introduction to drawing basics and concepts explains a few ways you can create edges and faces (the basic entities of any SketchUp model). You also discover how the SketchUp...

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<div class="post-metadata">

**Author:** ![HansH](https://avatars.discourse-cdn.com/v4/letter/h/ed655f/32.png) [@HansH](https://forums.sketchup.com/u/HansH)\
**Post date:** [January 31, 2017, 9:26pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/15 "2017-01-31T21:26:25Z")

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thanks for your link. I checked the video that was in the comments ([ACAD dwg Import into SketchUp - YouTube](https://youtu.be/-yf2tvmbQRw)) and it seems that this is solving my problem:  
-select all  
-intersect faces → with selection

I tried to reproduce, and it only happens when using the ‘explode’ on my floorplan. Maybe there is a better way to make the floorplan transparent so you can still see once you start drawing the walls…

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<div class="post-metadata">

**Author:** ![ViggoPaulman](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/viggopaulman/32/261002_2.png) [@ViggoPaulman](https://forums.sketchup.com/u/ViggoPaulman)\
**Post date:** [January 31, 2017, 10:06pm UTC](https://forums.sketchup.com/t/gif-example-i-get-no-face-on-exploded-imported-image/38272/16 "2017-01-31T22:06:30Z")

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You’re welcome. Yes, like I said Intersect Faces With Selection is one way to try to solve this issue. Glad your problem is solved.

And yes, there actually is a trick I use when tracing JPG floorplans. Parallel Projection \> Top View \> X-Ray Mode. 😉
