SOLVED Leader arrow heads disappear

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Eelie
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SOLVED Leader arrow heads disappear

Post by Eelie » Tue Mar 02, 2021 5:51 pm

I am running QCAD Version: 3.24.3.0 in Windows 10 to produce drawings for a house extension. I have generated a number of plans, sections and details to various scales, each as a layout block in paper space. Whilst in paper space, I have added drawing frames, titles and text notes with leader lines. These leader lines are intended to have arrow heads and I have applied a scale factor to them to make the arrows look right in paper space. The problem is that when I save and close the drawing all the leader arrow heads disappear. I got used to putting text notes in paper space when I first used AutoCad several years ago but it looks as though I need to put all text notes and their leaders in model space. Is this the case?
Last edited by Eelie on Thu Mar 04, 2021 2:28 pm, edited 1 time in total.

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andrew
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Re: Leader arrow heads disappear

Post by andrew » Tue Mar 02, 2021 5:59 pm

Leader arrows are removed if the arrow size is smaller than half the length of the first leader segment that is hosting the leader. This is a DXF/DWG format restriction.

If you can attach your drawing file with at least one such leader in it, we can help more efficiently, thanks.

CVH
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Re: Leader arrow heads disappear

Post by CVH » Tue Mar 02, 2021 6:25 pm

Same here:
https://qcad.org/rsforum/viewtopic.php?t=6859
My arrowhead fitted at least twice!
Dismissed as expected behavior.
CVH

Eelie
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Re: Leader arrow heads disappear

Post by Eelie » Wed Mar 03, 2021 12:22 pm

I'm not sure that I fully understand your reply about the arrow size Andrew but I attach a stripped down version of the drawing in question. It is set to the layer state for "sections" and the "roof detail" block has a number of leaders attached to notes. These leaders should have arrow heads.
Attachments
Leader_problem.DWG
(141.09 KiB) Downloaded 371 times

CVH
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Re: Leader arrow heads disappear

Post by CVH » Wed Mar 03, 2021 1:18 pm

Same problem ....
The Leader entity (similar as all the dimension types) has a Specific Scale Property.
This is set to 0.1 for a proper arrow size.
I have no problem with that. :wink:
I'll vote for this feature.

One can set them but that is reset on save/open.

In the mentioned topic, Husky replied that this is not the correct method/usage.
Instead the global setting for dimensions should be used.

What would be very troublesome in your case.
:roll:

Regards
CVH

CVH
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Re: Leader arrow heads disappear

Post by CVH » Wed Mar 03, 2021 2:57 pm

Hi,
BTW:
A golden rule with hatches is to keep the hatch origin near your hatch.

GRAVEL is a quite demanding hatch.
>> 'Slower' Section A-A, Section B-B & Wall Detail Paper Layout rendering.
It is used 36,000 and 64,000 units away from its origin.
>> Bad coherency.
GRAVEL2 might be somewhat better.
Setting the hatch origin near would be best practice.

Regards,
CVH

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Husky
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Re: Leader arrow heads disappear

Post by Husky » Wed Mar 03, 2021 7:45 pm

andrew wrote:
Tue Mar 02, 2021 5:59 pm
Leader arrows are removed if the arrow size is smaller than half the length of the first leader segment that is hosting the leader. This is a DXF/DWG format restriction.
Eelie wrote:
Wed Mar 03, 2021 12:22 pm
I'm not sure that I fully understand your reply about the arrow size Andrew but I attach a stripped down version of the drawing in question. It is set to the layer state for "sections" and the "roof detail" block has a number of leaders attached to notes. These leaders should have arrow heads.
Andrews explanation said that the first leader has to be "at least" twice in length of the arrow size. If shorter - the Arrow will not be shown.

Husky-2021.03.03-02.png
Husky-2021.03.03-02.png (14.33 KiB) Viewed 9484 times

I changed the settings a bit - is this how it should be?

Husky-2021.03.03-01.png
Husky-2021.03.03-01.png (45.44 KiB) Viewed 9484 times
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Eelie
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Re: Leader arrow heads disappear

Post by Eelie » Thu Mar 04, 2021 12:16 am

Yes, that's what I am trying to achieve but what exactly did you do in settings?

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Husky
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Re: Leader arrow heads disappear

Post by Husky » Thu Mar 04, 2021 12:53 am

Change the Arrow size to a practical size like 3.5 instead of 50.
Menu / Edit / Drawing Preferences / Dimension Settings

Next: Block List, select "Roof Detail", launch "Edit content of selected block",
use the "Selection Filter" to search and select (Icon "Replace the current selection") all "Leader" in this Paper_Space,
switch to "Property Editor",
below "Specific Properties" change the Scale to 0 and change "Arrow" to Yes.

That should fix the issue ... e_confused
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Win10/64, QcadPro, QcadCam version: Current.
If a thread is considered as "solved" please change the title of the first post to "[solved] Title..."

CVH
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Re: Leader arrow heads disappear

Post by CVH » Thu Mar 04, 2021 8:34 am

Same solution ....
Avoid the use of the specific property Dimension Scale for Leaders.
let us asume that Scale=0 is 'no Scale'. What is mathematically scale 1.0000...

Choose the drawing dimension size to fit your smallest Leader arrows.
Apply larger specific scales to dimensions if those need to be larger as Leaders
That's how I do it since Jan 2020.

In short: Don't scale down, but scale up!

What Husky left out is that 28 dimensions in your drawing need to be updated too.
All dimensions are bound by the global drawing dimension settings.
That's why there is the Scale property (... except for Leaders)

Cheers,
CVH
Last edited by CVH on Fri Mar 05, 2021 7:50 am, edited 2 times in total.

Eelie
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Re: Leader arrow heads disappear

Post by Eelie » Thu Mar 04, 2021 2:25 pm

Thank you all for your help. I know what to do now.

CVH
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Re: SOLVED Leader arrow heads disappear

Post by CVH » Fri Mar 05, 2021 11:45 am

Posted a feature request.
Picked up as bug and fixed. :P
https://www.qcad.org/bugtracker/index.p ... sk_id=2196

Thanks Andrew.
Regards
CVH

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