Widget used for infinitely resizable painting in librecad

Librecad uses a widget which can be infinitely resized, you can zoom in and out as much as you can. Which widget does it uses? When I paint into a common widget, the painting is done at certain...

How to remove/locate invalid object in my dxf file?

When I open a particular Dxf file in LibreCAD, the command line dialog box in libreCAD says : Invalid objects removed : 1 I want to detect this invalid object in my dxf file and remove it. When...

How to select building target in QT Creator?

I am trying to set up and run an open source application(LibreCAD) and I am following their Build From Source guide. In section "Building LibreCAD 2.0 on Windows" and under "Building LibreCAD in...

How to implement an interactive QAction with Pyside ? (i.e. How to catch event in a QAction ?)

It might be a very simple question but I can't figure out how to do it. The context: I am making an application that can draw polygons in a QGraphicsScene. I would like to implement interactive...

How to represent/read a cube in dxf file?

Trying to open a dxf file format (actual project in C++), I could understand the basic structure of the file, but I can't manage to find how a cube is actually represented. For a cube in CAD, I...

In Librecad how do you trim / remove a line of a circle or ellipse bounded by a circle or an ellipse?

As per the image (below) I have an ellipse with some particles (circles) I appear to have correctly removed the line through one of the circles however have not been able to reproduce this effect...

Issue in compiling this open source application

I am trying to set up and run LibreCAD and I am following their Build From Source Guide. At some point, and after installing QT and boost, I reach the step where it says this: > To change these...

DXF ASCII to write multiple text strings

I can't seem to add multiple text strings to a DXF file. It works for when I only have a block of code for 1 line of text. I can't seem to add multiple lines. I created the code shown below. Any...

dxf_input.py returns ZeroDivisionError when opening dxf file

I have a dxf file which I have exported from SolidWorks. I want to use Inkscape to open them up, modify them and send for laser cutting. However, when I open them I get this error: <pre> ...

DXF generation using ezdxf: polyline containing spline fit points

I am developing a program, and one of the requirements is to take DXF as input. The input is limited to 2D case only. The program itself is in C++/Qt, but to test it I need some sample DXF input....

To test the result of a code change, do I always need to ReBuild the whole thing?

Working with Qt Creator 5.7.0 MinGW 32bit on 64bit Windows and for the first time, I set up and ran a c++ open source application. I succeeded in downloading their code, configuring it and...