QCAD Bugtracker

QCAD - 2D CAD System.

Click here for a documentation of the DokuWiki formatting syntax that can be used in reports

Please search for existing tasks (also closed ones) before opening a new task.

Please make sure that you are using the latest Version of QCAD before posting a bug (menu Help > Check for Updates)

IDCategoryTask TypeSeverity  descSummaryStatusProgress
1701QCAD (main)Feature RequestLowLayer List / Block List: add filter inputAssigned
Task Description

Add text filter for layer list, block list.

1702QCAD (main)Feature RequestLowDraw > Polyline: add boolean operationsAssigned
Task Description

Add intersection, union, difference, XOR operations for closed polylines.

1705QCAD (main)Feature RequestLowConnect certain actions and layersAssigned
1 Task Description

When dimensioning my drawings I always want the dimensions to be on the dimensions layer.
When adding text I want the text to be on the text layer.
When drawing an infinite line it is always a construction line, therefore I want it to be on the construction line layer.
When drawing a line segment it almost always is on my outline layer.

So I propose a new option to bind certain actions to certain layers.
Whenever those actions are selected the layer should automatically be switched.

I can imagine this being implemented in the General→Tool Settings menu, where the short cuts are defined.

 1708 QCAD (main)Feature RequestLow Layer > Select Layer: add feedback Closed
Task Description

Win 7
Q-CAD 3.19.2

R-Click in Layer list
With a selection, selecting by Layer adds the Items on that Layer to the selection.
With a selection, deselecting by Layer subtracts the Items on that Layer from the selection.
This is not a bug in casu because this can be the intention of the function. Adding or Subtracting.

Intuitively ‘selecting by Layer’ to retrict to that Layer solely has only the desired effect if no selection existed before.
Deselecting by Layer with no previous selection should mention there was none to start with.
Selecting by Layer from an empty Layer should mention that nothing is added.

Faults are prone to make.

Selecting a Layer uniquely would be an interesting additional feature.


1713QCAD (main)Feature RequestLowAdd attribute value "By Parent" for child layersAssigned
Task Description

Add attribute value “By Parent” for color, line weight, line style for child layers.

See also:

1714QCAD (main)Feature RequestLowDimension > Diametric: improve display when label is mo...Assigned
1 Task Description

See also:

1721QCAD (main)Feature RequestLowInsert table toolAssigned
2 Task Description

Hi Andrew,

I’m not sure whether this has been added or suggested already. It would be great to have a built in QCAD table tool for producing cutting lists or bill of materials etc. A dedicated table tool would be a real boost to QCAD Pro ;)

Many thanks


1722QCAD (main)Feature RequestLowOption to insert viewport at either of the rectangle co...Assigned
1 Task Description

Hi Andrew,

Currently the only option to insert a viewport is using the central insertion point, for better placement it would be useful to have an option to insert viewports at any of the four corners in addition to the centre.

Hope that makes sense.

Many thanks


1723QCAD (main)Feature RequestLowDetecting overlapping line / arc segmentsAssigned
4 Task Description

Add a tool to detect overlapping segments or lines and arcs.
Similar like the “overkill” command in other CAD systems.

1731QCAD (main)Feature RequestLowOption to palce text to other sideAssigned
1 Task Description

Hi Andrew,

It would be good to have an option to be able to place the text to the left or right,maybe just a simple check box? please see attached screenshot to explain. In this instance (and I have to do this a lot ;)) I had to explode the dimension entity and rearrange the text manually :(

Many thanks


1749QCAD (main)Feature RequestLowAdd support for non-uniform block scalingAssigned
Task Description

Same txt as on the forum.
had a copy because i had to log in 3 times to remark my own post.

Blocks are no solution either.

see pdf
[attachment=0]Block test_1.pdf[/attachment]

Antartica is put in a block as segments.
Added a rounded corner as segments and as poly.
scaled X x0.5 Y x1 origin the center of the magenta circl.

The scaled version is all over the place.
Set them to color red, no use they stay black.

The reference of the block is 2000mm to the left because I tried it out far right of my design.
The cyan circle is about 400mm in diameter.

dxf part included
[attachment=1]Block test.dxf[/attachment]

Version: (3.20.1)
Internet: QCAD.org
Build Date: Apr 13 2018
Revision: dd51609
Qt Version: 5.5.1
Architecture: i386
Compiler: MSVC++ 10.0 (2010)


1755QCAD (main)Feature RequestLowSelecting standard rotation angles by mouse click for M...Assigned
Task Description

This would be nice.
It will save a lot mouse - keypad changes for me.

 112 QCAD (main)Performance IssueLow Slow startup because of Library Browser Closed
Task Description
  • initial start (no library browser DB present)
  • Linux vostro #1 SMP PREEMPT 2011-04-25 21:48:33 +0200 i686 i686 i386 GNU/Linux
  • DWG / DXF files: 79
  • SVG files: 684
  • RDF files: 729
real    1m37.298s
user    1m35.101s
sys     0m0.806s
 169 QCAD (main)Performance IssueLow Image preview slow Closed
Task Description

Preview when inserting image slow

 201 QCAD (main)Performance IssueLow unable to move/dock command line Closed
Task Description

Cannot move/dock command line to right hand pane!



 233 QCAD (main)Performance IssueLow Slower selection / manipulation Closed
Task Description

Slower selection / manipulation compared to QCAD 2.

 244 QCAD (main)Performance IssueLow snap auto Closed
Task Description

Snap defaults to auto. Auto snap gets slow in areas where there are many places it can snap to.

288QCAD (main)Performance IssueLowopening dwg file takes very long [improved]Assigned
Task Description

Opening a 4 MB dwg file results in no-response for about five minutes. Opening the same file with DraftSight takes less than five seconds.

 360 QCAD (main)Performance IssueLow Application Preferences - Shortcuts (slow) Closed
Task Description

In the “Application Preferences”-menu a click on submenu “Shortcuts and Commands” freeze the application for a view minutes.

 391 QCAD (main)Performance IssueLow Complex blocks: moving with drag and drop shows whole b ...Closed
Task Description

Complex blocks: moving with drag and drop shows whole block as preview (slow)

 673 BookPerformance IssueLow Library - Symbols Closed
Task Description

Library - Architecture is showing only four (4) symbols:
“ffl, north, uparrow and winv”.
Is this correct?

Thanks in advance



728QCAD (main)Performance IssueLowSlow loading of drawing with many block insertsAssigned
1 Task Description

Slow loading of drawing with huge number of block inserts (more than 10000).

 914 QCAD (main)Performance IssueLow Invert selection: poor performance Closed
Task Description

Inverting the current selection is significantly slower than select all, deselect all or other selection tools.

 1029 QCAD (main)Performance IssueLow Selecting many entities: poor performance Closed
1 Task Description

Selecting a great number of entities (>10000) can be slow, likely due to updating the property editor.

 1052 QCAD (main)Performance IssueLow (Isometric) projection: poor preview performance Closed
Task Description

Preview performance can be improved by projecting only once and then moving / pasting the projection.

 1115 QCAD (main)Performance IssueLow Windows: slow file dialogs Closed
Task Description

Windows 7 Professional 64bit SP1

File > Open shows empty dialog for 1 minute, then shows dialog contents.

 1305 dxflibPerformance IssueLow Bottleneck in DL_Dxf::toReal caused by std::locale Closed
Task Description

Loading any larger dxf file takes very long because of this line:

The call to std::locale is very slow. File-loading can be speed up by approximately factor 5 times on my system when replacing it. I just removed that line and instead added the following in DL_Dxf::in so it is changed only once per file:

std::locale oldLocale = std::locale::global(std::locale(”C”)); // use dot in numbers
while (readDxfGroups(fp, creationInterface)) {}

 1315 QCAD (main)Performance IssueLow Snap > Auto Snap: slow when snapping to complex polylin ...Closed
Task Description

See also:

 1497 QCAD (main)Performance IssueLow Autosnap: hangs with very complex splines Closed
Task Description

Splines with hundreds of control points or fit points can cause hangs when using auto snap near them.

 1606 QCAD (main)Performance IssueLow Selecting 'Draw Order' halts system temporary Closed
Task Description

Merely clicking on ‘Draw Order’, and usualy unintended, halts the system for several seconds up to several tens of seconds.

Intel(R) Core(TM) i7-2600K CPU @ 3.40Ghz
4,00 GB RAM installed 3,49 GB usable
32-bit Operating System
Windows 7 Professional SP1

 1610 QCAD/CAMPerformance IssueLow Switching from one drawing to another slow Closed
Task Description

When switching from one drawing to another, the 3D view is updated which can be slow, especially for drawings with many text entities.

See also:

 1662 QCAD (main)Performance IssueLow Select > Select Contour: slow for complex drawings Closed
Task Description


when working with files containing many not connected elements (non-poly-line elements) a double click can cause a coffee-break easily. The search for connected entities easily takes over 5 minutes on an up to date machine (i7@3.4GHz) with files that are pretty standard in size (2 or 3 MB file size ascii dxf). Adding an interruption-method would be suitable (for example by pressing escape).

attached a file with a polyline of 13000 entities and a second file with just everything duplicated. When exploding the polyline and double clicking an element it takes quite a while until all elements are selected. (this is not an extreme example, I had sometimes 10 minutes of waiting with slightly bigger files, accidently double clicking something).

also an improved algorithm for the search would help to speed up the selection. (e.g. divide the area in smaller parts, do the search there, or an option to search only in the visible view port of the document)


 1693 QCAD (main)Performance IssueLow Formatted text is not correctly displayed Closed
1 Task Description

Texts justified and/or formatted in dxf or dwg files generated by Autocad not presented correctly when the file is opened by QCad, follow file for verification.

137QCAD (main)RefactoringLowSVG Export precisionAssigned
Task Description

In files exported with the (even PG) exporter I sometimes see values like these: 334.99999999999994 or 570.0000000000001 and very often 12 digits of precision.

To safe on file size, I suggest, that QCAD rounds values on SVG export to eg. three places. When viewed in an ordinary web browser, that will result in a precision of 1 inch / 96dpi / 1000 = 0.00026mm, not? Ends should still meet.

 138 QCAD (main)RefactoringLow SVG Export entity properties "By Layer" and "By Block" Closed
Task Description

If I understand correctly, SVG export uses svg groups to keep QCAD block entities. This in itself is very useful. There is no way to correctly keep layer information, as QCAD blocks can contain elements on different layers, while SVG only knows about groups. That is a deficiency of SVG.

To save on file size, there was some potential to get rid of ever repeating same attributes on entities, eg: style=”stroke:#000000;stroke-width:0.25;stroke-dasharray:2.16,1.08”

To optimize “By Block” is easy: just set the attribute on the SVG group, and omit on below entities styled “By Block”.

To optimize “By Layer” is a little more involved, but might be solved by using css:
- Create a class by the name of the Layer
- add the class attribute to elements styled “By Layer”

Then only individually styled entities would get a style attribute, and filesize of SVG could be halved in most cases.

This just an idea :) Having written this, I now realize, that QCAD can style weight, pattern, color each extra, so the optimazition could only be applied to entities, where everything is “By Layer” or “By Block”. But that should be the case most of the time.

 146 QCAD (main)RefactoringLow cloning entities: optional ID cloning Closed
Task Description

add parameter to REntity::clone to allow cloning without cloning object ID.

 610 QCAD (main)RefactoringLow replace QMdiArea with QTabBar and QWidgetStack Closed
Task Description

QMdiChild widgets in an QMdiArea receive repaint and mouse events even if they are not active which slows down the user interface when having multiple MDI children open.

Long term, QMdiArea might have to be replaced with something else.

 26 QCAD (main)ReleaseLow Release Tasks Closed
Task Description


  • developer menu
  • tests scripts

Adjust Version


  • “About” dialog (automatic)
  • reference manual: support/doc/manual/about.txt / about_de.txt
  • scripts/splashscreen.png
  • scripts/Tools/LibraryBrowser/splashscreen.png
  • src/core/RVersion.h
  • library browser DB file name in LibraryBrowser.js, LibraryBrowser.getDbFile()


  • Linux Deployment (support/deployment/linux)
    • deploy.sh: change RUN_FILE, TARGZ_NAME
    • setup.sh: change SETUP_INSTALLPATH
  • Mac OS X:
    • deploy.sh: DMGNAME
    • src/run/Info.plist
    • src/run/InfoLibraryBrowser.plist
    • src/run/InfoTrial.plist
  • Windows:
    • qcad_installer.nsi
    • qcad_trial_installer.nsi

Don't forget

  • file “readme.txt”
    • adjust “Known limitations”
  • update QCAD Application Framework API
  • svn tag revision
  • add version to bug tracker

Check List

  • run automatic tests
  • designer plugins qwebkit (libqwebview.so)
  • text with CAD font
  • hatches
  • insert image
  • user interface translations
  • help (Qt Assistant client)
    • help translations
  • library browser
    • drag-n-drop insert from library browser
  • help - contents
  • help - check for updates
  • templates
  • initial launch (without ini file)
  • printing
  • PDF generation
  • SVG export
  • loading / saving files
  • Help - Show Readme (can file readme.txt be found?)
  • Qt libraries not in debug mode, QCAD binary does not link against debug Qt libraries
  • command line tools


  • Mac OS X Snow Leopard & Lion (10.6 & 10.7)
  • Mac OS X Leopard x86 (10.5)
  • Mac OS X Leopard ppc (10.5)
  • Linux 32bit
  • Windows 32bit

Plus maybe later:

  • Mac OS X Tiger (10.4)
  • Linux 64bit
  • Windows 64bit
 1328 QCAD (main)ReleaseLow Windows 64bit install dir Closed
Task Description

I only noticed today (perhaps they were available earlier?) that there are 64 bit binaries for windows; I suppose these are true 64 bit.

Yet, the installer prompts me to put them into “Programs (x86)”, where all the 32bit software lives, I guess - this seems to be a pure convention though, the application runs just fine.

Maybe the reason is, that the 32bit version was installed before; Maybe it should change? Maybe it should stay, so that there are not two?

1323QCAD (main)SuggestionLowImprove command line support in QCADAssigned
Task Description


As a typical command line draftsman (still using acad10 for dos, since microsoft doesn’t supoort Win NT anymore),
I noticed a severe lack on command line acces in QCAD.

For example I find the icon and pixel selecting methods within qcad very confusing and rude.

With the normal cad Select command I can select exactly what en how I want it.

I intend not to be rude, but I find my drawing screen littered all over with all kind of very specialist menu’s,
tools and options. Sorry, I just want to make a drawing at the natural intuitive way, as with a pencil.
So I use command line Commands, such as Move, Copy, Change, Select, a.s.o.
For a ‘Command scripting’ user (-batching is a different tool!-),
it seems to me logical these basic commands should be accessable.

1368QCAD (main)SuggestionLowContext Menu - suggestionsAssigned
1 Task Description

I love using the context menu, speeding up my workflow indeed.

I would like to suggest that we have the added option to show only icons if desired and also that maybe an option to save and show commonly used tools!

Maybe the context menu could be configurable to show two columns, one for the normal last used tools and the othjer one for the user saved tools?

What do you think?

1469QCAD (main)SuggestionLowCartouche automatiqueAssigned
1 Task Description

Would not it be possible to create a kind of template for printing?
We draw our room without cartridge. The cartridge will automatically appear when printed. The scaling could be automatic so that it goes in the A4 and therefore also will post the scale automatically. The name of the play could be the file name, date last saved after it the rest of the information that would be to add somehow (material index, designer, ...).

Original suggestion:


Ne serait il pas possible de créer une sorte de template lors de l’impression ?
On dessine notre pièce sans cartouche. Le cartouche s’affiche automatiquement lors de son impression. La mise à l’échelle pourrais être automatique pour que ca rentre dans le A4 et donc l’échelle s’afficherai aussi en automatique. Le nom de la pièce pourrais être le nom du fichier, la date du dernier enregistrement après c’est le reste des infos qui serait à ajouter je ne sais comment (matière, indice, dessinateur, ...).

 1490 QCAD (main)SuggestionLow Text Edit Control <ESC> maps to <cancel>. If anything i ...Closed
Task Description

For all the Linux VI editor geeks, can you disable the <ESC> function in the text edit mode. <ESC> maps to <cancel>. If anything it should map to <ok>. Which creates no harm as it can be later undone. I have accidentally lost edits countless times due to an unbreakable habit.

 1499 QCAD (main)SuggestionLow Add script generator for Qt 5.6.2 Closed
Task Description

As it says on the tin - please add script generator for Qt 5.6.2.

 1516 QCAD (main)SuggestionLow QT style on Linux Closed
Task Description

The startup script still forces a QT-style; Getting bored of that one, qcad runs fine with the system default style - probably that was a qt4 thing, that can be removed, so it blends better with the DE?

18c18 /opt/qcad/qcad
< LD_LIBRARY_PATH=”$DIR” “$binary” -style plastique “$@” —

LD_LIBRARY_PATH=”$DIR” “$binary” “$@”
1526QCAD (main)SuggestionLowExporting block attributes to CSVAssigned
1 Task Description

Two useful commands make it necessary to

1-”delete all the history of the command lines without terminating QCad” ; and

2-”export attributes to the CSV file as exported to the Blocks List”

 1527 QCAD (main)SuggestionLow "Zeichnungseinheit konvertieren" translation missing .. ...Closed
Task Description

... for the Option bar.

 1534 QCAD (main)SuggestionLow Headless Styling Closed
Task Description

Since the launcher batch no longer requests “-style plastique” QT wants to apply the native style of the desktop environment. This fails on a headless system (or where the current user has no graphical shell to connect to) with the message “Gtk-WARNING **: cannot open display: “. Fortunately, QT provides a workaround in addtion to the new “platform=offscreen” flag.

In the tools that set -no-gui, beforehand export these variables into the environment

export QT_QPA_PLATFORM=offscreen
export DISPLAY=""

PS: QT-offscreen will not find fonts; unfortunately the workaround only allows for a single directory to search them (I need helvetica):

export QT_QPA_FONTDIR="/usr/local/share/fonts/type1"

Maybe that should get reported upstream, so that like LD_LIBRARY_PATH several directories could be specified.

1678QCAD (main)SuggestionLowProperty Editor dialogAssigned
Task Description

The line for “General properties”, “Layer” the line is too narrow,
so you do not see the layer name when the Property Editor is pinned to the side.
(see Forum - Suggestions and Feedback):

 1724 QCAD Community EditionSuggestionLow "OVERKILL" command Closed
Task Description

Is it possible to create “OVERKILL” command like in AUTOCAD

Showing tasks 1601 - 1650 of 1761 Page 33 of 36<<First - 31 - 32 - 33 - 34 - 35 - Last >>

Available keyboard shortcuts


Task Details

Task Editing