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Boolean errors
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* January 11, 2020, 12:30:31 PM
Im seeing many visible errors after performing a Solid Segregate or an Solid Exclusive Or.
Using the attached Dcad drawing
1: Sweep the circular plane in the Yaxis using the point as the center.
2: Extrude the rectangular plane 4 units in the Y axis
3: Perform any one of the two Booleans I mentioned above.
Using Dcad 2019 with latest patch.
« Last Edit: January 11, 2020, 02:37:34 PM by Dean »

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* January 11, 2020, 02:40:17 PM
#1
Attached is my result in version 24. The UI is much smoother/quicker to redraw in V24 ???
« Last Edit: January 11, 2020, 02:43:58 PM by Dean »

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January 11, 2020, 08:38:20 PM
#2
Dean,

I also used V24 and here are the results in image below.

Note: The circular plane and rectangle in your drawing are the Aluminum material with a green base color. They appear green in wireframe, but are light gray in OpenGL Gouraud shading (with "Enable color material" enabled in the shading dialog)..

What's weird about the images you posted is that some of the solids are green and some Aluminum color.  But it does appear the solid Boolean operations work correctly in V24.

I tried again with DesignCAD V27.0 and got the results in the second picture.Again it is OpenGL Gouraud shading without "Enable color material" enabled. Again, the solid Boolean operations appear to work correctly.

NOTE: In "Options/Options/General" I do not have "Use surface representations for solid operations" enabled.

The third image is V27.0 with "Use surface representations for solid operations" enabled. All of the resulting solids are "solid surface" in the Info Box. Even though "Enable color material" is enabled, it doesn't work. Also the surface normals for several facets are reversed.

Check to be sure you aren't using "solid surfaces."

What version of DesignCAD were you using (24 or 2019)?

Phil
« Last Edit: January 11, 2020, 09:16:18 PM by Dr PR »

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* January 12, 2020, 02:56:02 AM
#3
The errors occur in V28. I get different results  every time I try it, Something is screwy.

I DO NOT get any type of surface errors or objects changing their positions in V24.

rather than sweeping/extruding planes > if I use a Box primitive and a torus primitive then do the Boolean in this test I get no errors, it's like a walk in the park for Dcad.
> I don't have that surface option enabled.

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* January 12, 2020, 02:59:25 AM
#4
> Fit all to screen >This is what happens after I do the Boolean  ???
« Last Edit: January 12, 2020, 03:05:12 AM by Dean »

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January 12, 2020, 10:11:11 AM
#5
Dean,

Using my latest release V28, and the instructions you provided exactly, I do not reproduce the errors you are getting in your V28 so far.

The redraw and re-shade after the operations is like a second or so.

The operations were performed in openGL shaded mode, is that what you did?

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* January 12, 2020, 01:09:55 PM
#6
Lets go to the video  ;D see attached there are two mp4's in the zip. Why can't we post mp4...
> Point entity moves
> Surface errors in Sweep > I had the sweep set at 40 copies
> tiny plane is created in the center
> Camera navigation is jumpy and jerky
> As I said before, working in Dcad 28 If I use a torus and box 3d primitive rather than the sweep and extrude there are no errors and much improved /smoother camera navigation. Unlike Dcad 24, Dcad 28 must be struggling with the sweep/Boolean....

>  Version 24 works like a dream, all around
« Last Edit: January 12, 2020, 02:10:53 PM by Dean »

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* January 12, 2020, 08:00:17 PM
#7
Final tests in Dcad 28.
I tried an extrude by path rather than the sweep > see attached image. that's really bad  :P
I also imported a sketchup file then boolean segregrate and it worked perfectly.
I'm done with this. As far as I'm concerned, for me the sweep tool is dysfunctional in Dcad 28.
i can use Dcad 24 or work with the 3d primitives in Dcad28 and or use sketchup for creating more complex objects then import those in Dcad 28.
« Last Edit: January 12, 2020, 08:13:12 PM by Dean »

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* January 16, 2020, 01:51:13 PM
#8
Just an update ....
After installing the latest patch I thought I was using the latest build but when I checked the build date it was listed as 5/31/2019.
So I uninstalled then re-installed and now the build is 11/5/2019 then I ran the latest patch and it still is listed as 11/5/2019.
Why didn't the latest patch update the 5/31/2019 build  ;D
Anyways, I ran the Boolean error test in Dcad 28 build11/5/2019 >  without  any errors > finally!

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January 16, 2020, 03:58:23 PM
#9
If I remember correctly, updates of the 2018 version sometimes didn't change the "build date" either.

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January 16, 2020, 05:45:31 PM
#10
If they didn't then they didn't work either.

When I started the thread about updates, I was quite sure the posted update patch was not working, and so far no one has actually piped up and confirmed it worked for them.

Very frustrating the lack of responses, so we could really make an issue of it.

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January 16, 2020, 09:43:18 PM
#11
Rob,

I still haven't been able to get any of the 2019 versions to work on my system. Installation tells me it is already installed! I have used the windows procedure to uninstall the program, and it says it has been uninstalled. But the DesignCAD installation procedure still insists V2019 is installed.

I never had any problems installing multiple versions of the program while DT was running things.

So I haven't been able to debug any of it.

Phil

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* January 16, 2020, 09:49:13 PM
#12
Bob,
2018 version does install the update and change the release date, but it doesn't change the build number - it still displays as 'Version 27.0. All previous versions it changes to '26.1' etc.

I hope they debug V2020 a little better than this!

Adrian

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