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QCAD - 2D CAD System.

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IDCategoryTask TypeSeveritySummaryStatusProgress  desc
 3 BookFeature RequestLow Automatically generate images for "CAD Introduction" Closed
Task Description

QCAD introduction Book

  • automatically generate screen shots of book in desired language
  • don’t use absolute paths in URLs
  • SVN:set up a new version for QCAD3
    1. start dialog → PNG
    2. set PNG resolution
    3. set PNG non-alpha-channel format
  • languages en/de/es/fr
  • script: $ generate_book_images.sh [en|de|es|fr]
  • Try to switch on / off antialiasing to render text / circles (whichever prints better):

User Reference Manual


  • paste/doc/description.html:
			The paste command inserts
			the entities previously copied to the
			clipboard. Paste is
  • ReferenceManual.js:
    • insert description HTML file under section “description”
    • save HTML files in right folder → paste/doc/Paste_de.xhtml
    • merge all HTML files to a reference manual
      • /home/martin/workspace/rsframework/support/doc/manual/qcad_user_manual.qhp
  • Iterate through all actions:
var actions = RGuiAction.getActions()
  • generate high-res PNG for every SVG tool icon:
BiLibrary.createAndSaveButton(iconSvgFile, pngFile);
  • generate some basic HTML for every tool:
<b>Menu:</b> [Top menu] - [Menu entry]
<b>Hotkey:</b> [two letter code or hotkey]
 4 BookBug ReportMedium Book "CAD Instruction" layout issues Closed
1 Task Description

Post all kind of layout issues for the book “CAD Instruction” here, e.g. overlapping text.

 10 BookBug ReportLow Book numbering in PDF is incorrect Closed
Task Description

The numbers in the book don’t match with the bookmarks numbers in the PDF as shown in Acrobat Reader.

 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



 682 BookFeature RequestLow QCad Book with Bookmarks ... Closed
Task Description

QCad Book

Would be nice to have the index linked (like Bookmarks, Hyperlinks, Jump marks) with the regarding chapter.

So that I just can click in the index what I’m looking for and it jumps directly to the correct chapter.

 886 BookBug ReportLow Wrong coordinates in the Orthographic Projections hands ...Closed
Task Description

I have the book dating about a year back, with the following metadata (no other version information in there):

Producer:       FPDF 1.7
CreationDate:   Fri Aug 24 15:10:36 2012

I believe there is a slight error in the Orthographic Projections hands-on (it may not be there in current versions of the book, but since my download timeframe is long over, I can not check that – should that be the case, sorry for the noise).

On page 219, step 1 of the exercise (drawing the front view), it is said

Set the first corner of the rectangle at the origin of the drawing (1)
and the other corner at 30,20 (2).

On pages 225-226, steps 7 and 8, drawing a 45-degree auxiliary line for the right-side view, it is said

Set the position of the line at the origin of the drawing (coordinate 0/0).

0/0 is the “bottom left” corner of the top view. The correct coordinates for the auxiliary line’s position are 0/30, the “bottom left” corner of the front view.

(I had not realized the bug tracker had a Book category as well – hence this is a duplicate of an e-mail report I have sent to [email protected])

 888 BookBug ReportLow Wrong pictures in hands-on Closed
Task Description

In the “Drawing a Shape Using Absolute Polar Coordinates” hands-on, step 3, there are two toolbar pictures, each with a caption. The pictures don’t match the captions; ie. the pictures should be swapped.

 2117 Command line toolsBug ReportLow BBOX inconsistent output Closed
1 Task Description

When I run bbox with the attached file I get inconsistent results if I run it 6 or 10 times.

Sometimes the size is 448979.2349223149/310815.2964427199 (it thinks that there is an object at 0,0)
sometimes it is 338.0789223148604/302.31644271989353 (this is what I think is correct)

[email protected]:/opt/qcad-3.25.2-pro-linux-x86_64$ ./bbox test.dwg
QCAD version 3.25.2
Warning: RPropertyTypeId::generateId: property already initialized: 7RObject : “” : “Invisible” 15:59:40: Debug: calling odInitialize
15:59:42: Debug: dropped global XDATA (no res buf): “ViewportCenter” Min: 0/0
Max: 448979.2349223149/310815.2964427199
Size: 448979.2349223149/310815.2964427199

[email protected]:/opt/qcad-3.25.2-pro-linux-x86_64$ ./bbox test.dwg
QCAD version 3.25.2
Warning: RPropertyTypeId::generateId: property already initialized: 7RObject : “” : “Invisible” 15:59:49: Debug: calling odInitialize
15:59:51: Debug: dropped global XDATA (no res buf): “ViewportCenter” Min: 448641.156/310512.98
Max: 448979.2349223149/310815.2964427199
Size: 338.0789223148604/302.31644271989353

 2193 Command line toolsBug ReportVery Low dwg2csv retains the last encountered custom properties Closed
Task Description

QCAD Professional
Win installer 32 bit
Version: (
Internet: QCAD.org
Build Date: Feb 12 2021
Revision: cad2d36
Qt Version: 5.13.2
Architecture: i386
Compiler: Unknown

While enhancing DrawFromCSV: Forum Link.
I had a peek at the new command line tool: dwg2csv

I would never come up with 115 columns.
That wouldn’t be efficient to generate entities from.
Although this way it is very complete and one could use specific lists to filter.
One downside is that the ‘-list’ switch return is far too vast for the windows command line.

Remarked that:
Only the first alphabetically custom property is listed under:
QCAD:Line & QCAD:Reference (columns 114-115).
And that the last encountered is persistent for all entities that follows.

Maybe this originates from a multiple entity selection ...
... what also retains the last encountered custom properties in the property editor.
Should I add a seperate task for that?

Also had an exception thrown:
Debug: dropped global XDATA (no res buf): “ViewportCenter”.
Discarted that as this very basic test drawing hasn’t even a Viewport.


Added: Snippet from DrawFromCSV code (merely a test case)


The two points, and only those two points, are casted with custom properties
QCAD|Reference|102 & QCAD|Line|56

Added: The dxf file
Added: The csv file (change to the comma/semicolon style)

 61 DocumentationBug ReportMedium QCAD 3 Manual Closed
Task Description

Change the user manual directory / file names from ‘simpletextviewer’ to
‘qcad_user_manual’ and adjust the sources accordingly that the manual can be shown
in the help menu.

We can simply drop the contents of the manual that is checked in and replace
it with a simple note “No manual is available yet for this technology preview of QCAD 3”

 64 DocumentationTaskLow Manual CSS Closed
Task Description

Create some CSS to display the user manual in a professional way, similar to web site.

 80 DocumentationTaskLow API Doc Organization Closed
Task Description

Rename everything from “RSFramework” to “QCAD Application Framework” (qcad_application_framework.pro / dox / doxyfile ...).

Add header with copyright / link to homepage.

Structure of documentation:

  • Entry (main) page
    • API (links to API doc for modules):
      • math
      • core
      • gui
      • ...
    • ECMAScript Developers (links to intros and examples):
      • ECMAScript introduction
      • ECMAScript module
 382 DocumentationFeature RequestLow Library Browser Closed
Task Description

Please explain the possibilities of the “Library Browser” I’m not able to make a new entry (Drawing Sheets)

 642 DocumentationBug ReportLow Better explanaton for Layer '0' Closed
Task Description

Layer ‘0’ has some special function. E.g. it can not be deleted, it will contain the data of undeleted layers.

I recommend adding some explanations: Explain the function of Layer ‘0’ as third paragraph in chapter 12 of the manual. Further it should be recommended to never use this layer for drawing.

By the way: I consider this to be better than no layer undelete. BUT: is there really not way for a true layer undelete...

 1004 DocumentationBug ReportLow QCAD e-book not searchable in Preview, Acrobat Closed
Task Description

I just downloaded QCAD and bought the doc that goes with it. Lo and behold, I find that I cannot search the doc in Preview (Acrorbat Reader too!)! So I paid extra for doc that might be argued should come with a product (although its hard to complain about the price) and then I cannot even search it electronically? There is just everything wrong with that in the year 2014! Please fix as it is extremely inefficient and time consuming to not have electronic search capability.

 1040 DocumentationBug ReportLow Break out Manual on Circle/Ellipse does not respect Rem ...Closed
Task Description

3.4.7 trial as well as community Git 9d3979

  • Draw a circle
  • B2
  • Make sure “Remove segment” is ticked
  • Select circle, then select two points to break out in between


  • Segment gets removed (not really, but read on)


  • Segment does not get removed, but circle is indeed broken into two arcs

Same for an ellipse.

I can see that by selecting two points on a closed circular shape it’s nigh impossible to tell which segment the user actually wants to remove :)

The documentation doesn’t mention this corner case. For clarity, a note detailing this effect a bit should be added to the docs.

On a slightly related note, I do not see why the feature couldn’t work on Polyline objects as well (with the same corner case restriction if it’s a closed polyline).

Very useful feature btw, thanks for it.

 1086 DocumentationBug ReportLow Spline corner control responding to multiple mouse clic ...Closed
Task Description

I can’t find any documentation (Reference Manual / Book) about the possibility to change the “corner” transition shape for Spline’s (Control Points) with multiple mouse clicks.
1, 2 or 3 clicks = smooth to sharp corner.

 1818 DocumentationTaskLow QCAD Reference Manual / Paste along Entity ... Closed
Task Description

... describes basically the “Paste” tool and not the “Paste along Entity” tool.

 1889 DocumentationBug ReportLow Autosave fails for QCAD original cxf font location Closed
Task Description

Now I try the third time to post this .... :-( .... deleted by “wrong token”???????
However ...

Regarding to the online tutorial:

Opening a CXF Font for Editing

To load an existing CXF font file in QCAD to view and edit its glyphs, simply use the menu File > Open and choose the format filter “CXF Font Files (*.cxf)”. Then choose the font file you want to open. The fonts that come with QCAD are stored in directory “fonts” of your QCAD installation.

quote end

Editing the cxf font in the original QCAD font folder will lead to a error message triggered by the Autosave function:

File access error: “C:/Program Files/qcad-3.22.1-pro-win64/fonts\~~Husky_test_font.dxf”. Access is denied.
[15:34:58] Autosave failed: C:\Program Files\qcad-3.22.1-pro-win64\fonts\~Husky_test_font.dxf

Note: Windows will not save anything in a system folder and the process is terminated by windows.

Solution: Move the cxf font for editing from the QCAD folder to a unprotected folder like Documents/drawings.
After editing is done move it back to the QCAD font folder.

 1908 dwg2maptilesBug ReportLow dwg2maptiles: Transparent background not cleared Closed
Task Description

See also:

 1221 dwg2pdfBug ReportLow dwg2pdf: Cannot create a QWidget Closed
Task Description

dwg2pdf shows error under Windows systems:
Fatal: QWidget: Cannot create a QWidget when no GUI is being used

 1675 dwg2pdfBug ReportLow draw order incorrect using dwg2pdf to convert DXF to PD ...Closed
Task Description

explicit drawing order of objects (such as sending hatch to back and bringing text to front) not respected when export to pdf used, the order of overlapping objects seems to use the order in which they were added to the drawing

this causes problems if we try to export a dxf to pdf and the hatching was drawn after some of the text

observed in Mac OSX El Capitan and Linux

 1712 dwg2pdfBug ReportLow dwg2pdf: auto fit fails for blocks Closed
Task Description

Autofit (-a) has no effect when converting a block or layout block (other than Model_Space).

 1952 dwg2pdfBug ReportLow Drawing problem for the object in pdf which converted b ...Closed
Task Description

The original file is A5.dwg. I’m using QCAD professional 3.23.0. A5.pdf is converted by command line tool dwg2pdf.
I found the drawing problem in it. See the attachment file problem.png.

As you see, I write down 3 bugs in problem.png.

1. bug 1. The position of ‘green 90’ is wrong.
2. bug 2. The line width is too large. You can see dot in A5.dwg, but a line in A5.pdf.
3. bug 3. The ‘green 42’ is missing.

Thank you very much for your help!

 1953 dwg2pdfBug ReportHigh Too small to see any drawings in pdf which converted by ...Closed
Task Description

Hello, I found a bug.

See the problem2.png.

Original file: 004.dwg.
After converting pdf by dwg2pdf. The file is 004.pdf. I can’t find any drawings. I scale the pdf reader to 6400%.
But the drawings are still too small.

This is my using command: .\dwg2pdf.bat -f -a -recompute-dim -ltscale=1 path

 1955 dwg2pdfBug ReportLow Encoding or font error Closed
Task Description

Morning, I found a bug.
Andrew, Thank you very much.

Original file: 跨海大桥.dwg

Converted file: 跨海大桥.pdf

Bug Description file: problem3.png

As you see, all the Chinese fonts are drawed as ???

 1956 dwg2pdfBug ReportLow Missing some drawing elements after being converted by  ...Closed
Task Description

Morning, I found a bug.

Original file: 006–【武汉会展中心店】一层合用前室.dwg

Converted file: 006–【武汉会展中心店】一层合用前室.pdf

Bug Description file: problem4.png

As you see, there are too many drawings missing.

 1957 dwg2pdfBug ReportLow Missing some drawing elements after being converted by  ...Closed
Task Description

Morning, I found a bug.

Original file: 006–【武汉会展中心店】一层合用前室.dwg

Converted file: 006–【武汉会展中心店】一层合用前室.pdf

Bug Description file: problem4.png

As you see, there are too many drawings missing.

 1958 dwg2pdfBug ReportLow Draw rectangle as ellipse Closed
Task Description

Good afternoon, I found a bug.

Original file: 006–【武汉会展中心店】一层合用前室.dwg

Converted file: 006–【武汉会展中心店】一层合用前室.pdf

Bug description file: problem5.png

As you see, all the rectangle fills are drawed as ellipse.

 1959 dwg2pdfFeature RequestLow The table cell is not autofit the content Closed
Task Description

Good afternoon, I found a bug.

Original file: 跨海大桥.dwg

Converted file: 跨海大桥.pdf

Bug description file: problem6.png

As you see, the content is not fit in the table cell.

 1960 dwg2pdfBug ReportLow dwg2pdf command fail Closed
Task Description

Good afternoon, I found a bug.

Source file: B5.dwg.

Command line: .\dwg2pdf.bat -f -a -recompute-dim -ltscale=1 -font-substitution Standard GBK path

After I used the command, the message “Warning: standard font not found” occured. And B5.pdf is not found.
Convert is fail.

 1961 dwg2pdfBug ReportLow Too many drawings are missing Closed
Task Description

Hello, I found a bug.

Original file: 006–【武汉会展中心店】一层合用前室.dwg

Converted file: 006–【武汉会展中心店】一层合用前室.pdf

Command line: .\dwg2pdf.bat -f -a -recompute-dim -ltscale=1 -block=布局1 path

Bug description file: problem8.png

As you see. I use dwg2pdf to export the block named “布局1”. There are too many drawings missing.

 1964 dwg2pdfBug ReportLow The width of line is wrong Closed
Task Description

Morning, I found a bug.

Original file: 南博湾3-702户型.dwg

Converted file: 南博湾3-702户型.pdf

Bug description file: problem9.png

Command line: .\dwg2pdf.bat -f -a -recompute-dim -ltscale=1 path

As you see, the width of lines are wrong.
Please follow the red arrow in problem9.png.

 1965 dwg2pdfBug ReportLow More than one problems in it Closed
Task Description

Original file: Connected King Room.dwg

Converted file: Connected King Room.pdf

Bug description file: problem10.png

As you see, there are 2 bugs:

1. There are 4 tabs in the original file. But dwg2pdf can only convert one tab to pdf.
2. After converting, the right column drawing is missing.

 1966 dwg2pdfFeature RequestHigh Add a new option to convert all blocks to pdfs Closed
Task Description

Relative to https://www.ribbonsoft.com/bugtracker/index.php?do=details&task_id=1965

I suggest that if dwg2pdf have an new options that can convert all the blocks to pdf.
Now, I need to know all the block names before converting.

But if I put qcad on server, the computer won’t know how many blocks in the dwg and their names.

For examples:

There are 4 blocks in dwg.block1, block2, block3, block4

Command line: ./dwg2pdf -block-all path

Result: block1.pdf block2.pdf block3.pdf block4.pdf

 1968 dwg2pdfFeature RequestHigh Add a -max-lineweight option Closed
Task Description

Good afternoon! I have a suggestion.

Relative to https://www.ribbonsoft.com/bugtracker/index.php?do=details&task_id=1964

I did not find option -max-lineweight.
Please see the attachment.

 2006 dwg2pdfFeature RequestLow dwg2pdf: Auto detect page orientation Closed
1 Task Description

Auto detect page orientation based on width / height of document.

See also:

 1531 dwg2svgFeature RequestLow dwg2maptiles: add support for transparent background Closed
Task Description

Trying to create map tiles using dwg2maptiles with a transparent background by adding the option-

The output has transparent background but the PNGs get multiplied and scrambled and are not at all as expected.

Attached: original DWG file and an example of the error prone PNG.

 1139 dxflibBug ReportLow dxflib: leading / trailing spaces are removed from text Closed
1 Task Description

dxflib strips leading / trailing spaces from text when importing DXF files.

 1180 dxflibBug ReportLow dxflib cannot open files with international characters  ...Closed
4 Task Description

With dxflib, QCAD cannot open any file with Chinese file name or path name, it popups a “Important Error” dialog.
But the writing (”Save As” command) with Chinese file name or path name is of no problem.
Does it mean dxflib can only handle single byte characters file name/path name?
WinXP, QCAD 3.8.0

 1246 dxflibBug ReportLow Saving MText with linefeeds in escaped text causes corr ...Closed
Task Description

Saving MText with linefeeds in escaped text causes corruption of file.


 1290 dxflibBug ReportLow test code does misspell all api functions containing th ...Closed
Task Description

All such functions in the api seem to be use the spelling Linetype (with lower-case t) while every function call in the test code does use LineType instead.

Report is for version 3.7.5 as it was the only version I found to download on the qcad.org webpage.
Sourceforge also didn’t seem to have any downloads and while I found a few dxflib clones on GitHub, none seemed official or up-to-date.
But maybe I’m just blind :-)

 1294 dxflibBug ReportMedium Hatches scale differently now from earlier releases Closed
Task Description

Something with hatching changed between 3.10 and 3.12; Changelog for 3.11.2 states: “Add support for hatch patterns defined per entity”. That may be?

Attached drawing from an older version; open in current and see a black box where there should be earth. Change scaling of hatch from 10 to 254 and it will be exactly the same it was when saving the file.

Curiously, that is like swapping inches and mm? Looking into prefs, there is a new drop down: “Messsytem für Linien und Schraffuren” and it read “imperial”; making it metric and bingo, my drawing looks as intended!

This is bad, because each drawing has to be changed! I changed the application default drawing setting to metric and the existing drawing still had imperial set…

Probably a heuristic was on order? If the drawing does not specify the new setting, and the drawing units is metric, use metric?

 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)) {}

 1314 dxflibBug ReportVery Low DL_Attributes::isInPaperSpace should be const Closed
Task Description

Only getter that’s missing it in dl_attributes.h

 1321 dxflibBug ReportLow dxflib: Handles not parsed correctly Closed
Task Description

I did noticed a bug in the lib: Indeed, the handle numbers that DL_Dxf is parsing are in most case incorrect.
I believe this is due to the way then handle number is parsed in DL_Dxf::processDXFGroups.
The handle is parsed by calling the function getIntValue, which itself calls the function toInt to convert the handle from std::string to int by calling the function std::strtol(handle, NULL, 10).
However, the handle numbers in a dxf file are stored as hexadecimal.
I wrote a quick and easy fix to this issue, just tell me if you are interested!

 1485 dxflibBug ReportLow dxflib: Lines are on the wrong layer when processing dx ...Closed
Task Description

I create a drawing using QCAD which is stored using dxflib. For some reasons dxflib must be used. This drawing contains arcs and lines on a separate layer. If the dxf file is processed by an other tool only the arcs are referenced to the specific layer. The lines are referenced to the standard layer 0. It doesn’t matter if I’m using the community edition or the pro edition.

After a some investigations I found that the created dxf file is not correct. I manually corrected the dxf file and it works as it should.

For details please refer to the appended files. Take a look to the ENTITY section and the LINE entities, e.g. line 2370. It is just to swap two entities.

Thanks for support.

 1595 dxflibBug ReportLow LWPOLYLINE exports Z values for vertices Closed
Task Description

See also:


 1631 dxflibBug ReportLow dxflib: wrong definition of DL_POLYLINE3D flag Closed
Task Description

DL_POLYLINE3D should be 0×8.

 1732 dxflibBug ReportLow Saving dimension with custom text position Closed
Task Description

Custom text position must be written as type flag (code 70, flag 128) as well as in style overrides as codes

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