[solved] Get DrawOrder to work for a bitmap

Use this forum to ask questions about how to do things in QCAD.

Moderator: andrew

Forum rules

Always indicate your operating system and QCAD version.

Attach drawing files and screenshots.

Post one question per topic.

Post Reply
iOne iTwo
Junior Member
Posts: 17
Joined: Thu Oct 26, 2023 5:50 pm

[solved] Get DrawOrder to work for a bitmap

Post by iOne iTwo » Wed Jan 31, 2024 6:15 am

How can I get a bitmap to appear "behind" other layer items?
In this case it's for tracing the imported bitmap.

Modify->Draw Order->Move To Back does not seem to be doing it.
Is there a way?

https://qcad.org/doc/qcad/latest/refere ... oc/Reorder

User avatar
Husky
Moderator/Drawing Help/Testing
Posts: 4943
Joined: Wed May 11, 2011 9:25 am
Location: USA

Re: Get DrawOrder to work for a bitmap

Post by Husky » Wed Jan 31, 2024 8:28 am

Your link refers to reorder - send to back should work with this tool:
https://qcad.org/doc/qcad/latest/refere ... ck_en.html
Work smart, not hard: QCad Pro
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
Premier Member
Posts: 3480
Joined: Wed Sep 27, 2017 4:17 pm

Re: Get DrawOrder to work for a bitmap

Post by CVH » Wed Jan 31, 2024 11:59 am

iOne iTwo wrote:
Wed Jan 31, 2024 6:15 am
How can I get a bitmap to appear "behind" other layer items?
Remind that there is no drawing order based on layers.
Do not think of CAD layers as stacked planes to draw on, they are listed in alphanumerical order.
Layers are generally intended to control drawing attributes of the entities that live on them.
The drawing order is a property defined per drawing entity.

MB simply sets the drawing order of the selected items to one less than what already exist ...
... What can be negative in the current session.
On save/reload everything may get re-ordered 'as is' from zero and sequentially upwards.
MF sets the drawing order of the selected items to one higher than what already exist.
The drawing order of a newly added entity is also one higher than what already exist.
Modification tools may preserve the drawing order or they may replace the affected entity(ies) by new ones.

This would explain most things concerning the drawing order of entities.
Hoping that it may shed some insights on the functionality.

Regards,
CVH

User avatar
Husky
Moderator/Drawing Help/Testing
Posts: 4943
Joined: Wed May 11, 2011 9:25 am
Location: USA

Re: Get DrawOrder to work for a bitmap

Post by Husky » Wed Jan 31, 2024 8:00 pm

@ iOne iTwo

Additional consider to fade (60%?) the bitmap within the Property Editor and lock the bitmap layer during the manualy tracing process. Could make things easier. :wink:
Work smart, not hard: QCad Pro
Win10/64, QcadPro, QcadCam version: Current.
If a thread is considered as "solved" please change the title of the first post to "[solved] Title..."

iOne iTwo
Junior Member
Posts: 17
Joined: Thu Oct 26, 2023 5:50 pm

Re: Get DrawOrder to work for a bitmap

Post by iOne iTwo » Wed Jan 31, 2024 9:18 pm

Even with Modify->Draw Order->Move to back,
the bitmap moves forward as soon as I mouse over it, frustrating the attempt to trace the bitmap.
See attached qcad file.

And a potential solution: if I "lock" the bitmap layer it gets better. Would anyone be interested in adding that tip to the documentation for qCAD?
Capture.JPG
Capture.JPG (17.81 KiB) Viewed 1268 times
(Ah, I see @Husky suggested just that).
Attachments
QCAD Send to back.dxf
(100.37 KiB) Downloaded 80 times

Post Reply

Return to “QCAD 'How Do I' Questions”