Makeblocks not working

[elsordo]

I have in interesting problem. I can no longer compute the block for a wall. I get the error that the wall has an invalid shape. I have attached the test case and pictures.

The version info is

OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24267 (Git)
Build type: Release
Branch: master
Hash: b2ca86d8d72b636011a73394bf9bcdedb3b109b7
Python version: 3.6.8
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/United States (en_US)

Attached is the report view, the combo view and the model.

The MainView window

MainView.png (65.71 KiB) Viewed 1652 times

[paullee]

I have in interesting problem. I can no longer compute the block for a wall. I get the error that the wall has an invalid shape. I have attached the test case and pictures.

Not quite familiar with Make Block, seems always need Joint to be some figure > 0mm to work

Screenshot from 2021-02-28 10-52-50.png (191.6 KiB) Viewed 1644 times

[elsordo]

Hmmm, this is new behavior. I have been using a zero thickness joint which would apply to dry stack masonry that is surface bonded.

Why was a non-zero thickness joint enforced?

[Roy_043]

Joints can be zero. That does not explain the problem. My guess is that the code does not take into account that there can be rounding errors when working with floats. With the given data an attempt is made to add a (almost) zero height layer of blocks at the top of the wall. You would expect 28 block, but Instead there are 32.

Code: Select all

>>> 7*203.2
1422.3999999999999
>>> 7*203.2 == 1422.4
False

[elsordo]

Is there any chance of getting this fixed?

[paullee]

Oh rounding tolerence. That probably can be fixed by @Roy_043 ?

[Roy_043]

As a workaround use this expression for the height of the wall:
56in

[elsordo]

I think that the error is deeper than just a rounding problem.

I downloaded the above FCSTD file to my Ubuntu box and tried to make some blocks but I found a different error. It looks like there is an exception.

I have attached the Combo View, Report View, and Python Console View

ReportView.png (32.47 KiB) Viewed 1371 times

PythonConsole.png (68.93 KiB) Viewed 1371 times

ComboView.png (58.41 KiB) Viewed 1371 times

The FreeCAD version info is

OS: Ubuntu 20.04.2 LTS (ubuntu:GNOME/ubuntu-wayland)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24267 (Git) AppImage
Build type: Release
Branch: master
Hash: b2ca86d8d72b636011a73394bf9bcdedb3b109b7
Python version: 3.8.6
Qt version: 5.12.5
Coin version: 4.0.0
OCC version: 7.4.0
Locale: English/United States (en_US)

[Roy_043]

You are not providing new information. Just compare Paullee's screenshot.
Have you tried the proposed workaround?

[elsordo]

You are not providing new information. Just compare Paullee's screenshot.
Have you tried the proposed workaround?

For both Ubuntu and Windows 10, I downloaded the model that I had posted to the topic and then I tried 56" for the wall height but the property editor promptly converted it to 4' 8" and still complains about an invalid shape.

Why does Ubuntu give me a different error message than Windows10

-David