Arch Roof and Arch array additional parameters

[awflingen]

The roof tool is absolutely brilliant and a great piece of programming - thanks to all involved.

I have one request can someone help me trim the eaves as per this picture or suggest an appropriate workflow. Wouldn't it be cool to have a tick box to add a gutter!! Or am I being fanciful.

roofend.jpg (15.72 KiB) Viewed 1192 times

The way I use Freecad is modelling old buildings and the array is therefore slightly limiting. Would it be possible to array the number of items equally over a total distance? The house I am modelling is over 200 years old and the beam centres vary between less then 700mm to over 900 - I guess it depended how many trees were available at the time.

Here is my current project - modelling for the third or fourth time but this took I guess about 2 hours. So I am reasonably pleased with my progress.

currentprogress.jpg (54.49 KiB) Viewed 1192 times

OS: Windows 10 Version 2004
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24276 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: a88db11e0a908f6e38f92bfc5187b13ebe470438
Python version: 3.8.6+
Qt version: 5.15.1
Coin version: 4.0.1
OCC version: 7.5.0
Locale: English/United Kingdom (en_GB)

[Roy_043]

help me trim the eaves

You can subtract a Part_Sweep from the roof.

array the number of items equally over a total distance

Try Draft_PathArray.

Note that you can directly attach images to your posts.

[awflingen]

Thanks Roy for taking the time to answer.

Not sure I understand why part sweep will help but will try. Draft path array seems logical so thanks again - I will investigate.

and found out how to add images - keep learning!

[awflingen]

Thanks again Roy for the tips array on the line worked nicely and I achieved results quickly. This will be really useful going forward.

Finally got part sweep to work

roofendsolved.jpg (4.66 KiB) Viewed 1109 times

but I do have some error messages see below.

22:12:48 1e-07 <App> Document.cpp(3172): The graph must be a DAG.

22:23:36 <Exception> DocumentObject::getOutListRecursive(): cyclic dependency detected!

22:40:47 1679.66 <App> Document.cpp(3527): SchuppenV6#Sweep001 still touched after recompute

22:40:47 1679.66 <App> Document.cpp(3527): SchuppenV6#Sweep still touched after recompute

I also have a copy of the roof in each sweep and a little blue tick mark on the structure

comboview.jpg (12.1 KiB) Viewed 1109 times

Solutions please - file does seem to be displaying properly.

[edwilliams16]

You have a cyclic dependency. A depends on B, B depends on C, C depends on A. You can diagnose this with https://wiki.freecadweb.org/Std_DependencyGraph
In the meantime your model view will show the last valid solution and won't update.

[awflingen]

Following on from the advice above I have been trying to alter the eaves of the roof using Sweep.

It has now for the third time given me an error code. Namely

11:38:14 1e-07 <App> Document.cpp(3172): The graph must be a DAG.
11:38:14 1.97539 <App> Document.cpp(3527): SchuppenV6_1#Roof still touched after recompute

The cyclical error is gone. I have drawn a wire to sweep - the face was set as solid = true the sweep was set to solid and I used one of the lines from the edge of the roof to sweep along.

I do have a section in my model through which I am sweeping is this causing the issue??

Where is my error please Freecad wizards.

[Roy_043]

Don't use an edge of the roof, but rather use the geometry the roof is based on.