Cairo arc alignment is a bit "bouncy"

Bug #1817226 reported by Seth Hillbrand on 2019-02-21
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Seth Hillbrand

Bug Description

The radius of the arcs drawn in cairo appear to depend on the angle of the arc (slightly). This creates the effect of "bouncing" arcs while drawing and mis-aligns the edges of the finished arc relative to OpenGL and gerber output.

Application: kicad
Version: (5.1.0-rc1-117-gdae7b03465), release build
    wxWidgets 3.0.4
Platform: Linux 4.19.0-2-amd64 x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
    Boost: 1.67.0
    OpenCASCADE Community Edition: 6.9.1
    Compiler: GCC 8.2.0 with C++ ABI 1013

Build settings:

Seth Hillbrand (sethh) wrote :
Seth Hillbrand (sethh) on 2019-02-22
Changed in kicad:
assignee: nobody → Seth Hillbrand (sethh)
importance: Undecided → High
milestone: none → 5.1.0-rc2
status: New → In Progress
Seth Hillbrand (sethh) on 2019-02-22
Changed in kicad:
status: In Progress → Fix Committed
Changed in kicad:
status: Fix Committed → Fix Released
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