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LibreCAD / LibreCAD

LibreCAD is a cross-platform 2D CAD program written in C++17. It can read DXF/DWG files and can write DXF/PDF/SVG files. It supports point/line/circle/ellipse/parabola/spline primitives. The user interface is highly customizable, and has dozens of translations.
http://librecad.org/
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Bug: Snap on entity during drawing a line and holding "shift" key #1145

Closed susnicek closed 4 years ago

susnicek commented 5 years ago

Dear developers, I found the following bug in my Librecad:

Expected behavior

Imagine I am going to draw a line by a mouse. When I am going to place a second point of the line and I am holding a "shift" key (wanting to draw only under 0°, 15,° 30°... angles) and concurrently the snap mode "snap on entity" is enabled - then I expect that I can snap on whatever edge, which the just drawn line is crossing.

Observed behavior

The expected behavior simply does not work. Or sometimes it seems to be working, but an exact snapping on an entity is not achieved (can be found by zooming).

Operating System and LibreCAD version info

Debian 5.2.9-2 (2019-08-21) x86_64 GNU/Linux Librecad Version: 2.1.3 Compiler: GNU GCC 8.3.0 Compiled on: May 16 2019 Qt Version: 5.11.3 Boost Version: 1.67.0 System: Debian GNU/Linux bullseye/sid

lordofbikes commented 4 years ago

Solved with PR #1147, https://github.com/LibreCAD/LibreCAD/pull/1147/commits/9fb6ef7ad2301bf152e5505f172632e2c85f74ad. Many thanks!