KiCad

DRC clearance error with oval pads

Bug #1756403 reported by Pedro on 2018-03-16

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	KiCad	Fix Released	Undecided	Unassigned

Bug Description

https://www.dropbox.com/preview/pictures/DRC-error-oval-pad-fullimage.jpeg?role=personal

https://www.dropbox.com/preview/pictures/DRC-error-oval-pad-detail.jpeg?role=personal

Application: kicad
Version: 5.0.0-rc2-dev-unknown-c6ef0d5~62~ubuntu14.04.1, release build
Libraries:
    wxWidgets 3.0.2
    libcurl/7.35.0 OpenSSL/1.0.1f zlib/1.2.8 libidn/1.28 librtmp/2.3
Platform: Linux 3.16.0-77-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.2 (wchar_t,wx containers,compatible with 2.8) GTK+ 2.24
    Boost: 1.54.0
    Curl: 7.35.0
    Compiler: GCC 4.8.4 with C++ ABI 1002

Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=OFF
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_SPICE=ON

The bug is also present in Windows.

In case the pictures cannot be seen:
If the gap between 2 pads is the same as the clearance, 0.2mm in this case, there are DRC errors if the pads are oval and there are not errors if the pads are rectangualr.

The gap between pads is 0.2mm and the global clearance is also 0.2mm
There are DRC errors on oval pads while not on the rectangular pads.
All pads have the same dimensions and the footprint has been fully checked.

If the gap between pads is 0.200001mm then there are no errors.

See original description