kicad-developers team mailing list archive

[Wayne Stambaugh <stambaughw@xxxxxxxxx>]

On 9/1/2018 1:43 PM, Seth Hillbrand wrote:
> Jeff-
> 
> Am Sa., 1. Sep. 2018 um 10:23 Uhr schrieb Jeff Young <jeff@xxxxxxxxx
> <mailto:jeff@xxxxxxxxx>>:
> 
>     FWIW, DRC now handles collisions with copper arcs, and zone cutouts
>     for copper arcs.  
> 
> 
> That's great news.  I missed when that went in.  How does it determine
> the net of the copper?  Or does it just flag the arcs overlapping anything?
> 
>     What’s still missing is the Connection Algorithm (because they’re
>     arcs and not tracks).  That also means the DRC clearance
>     calculations are one-sided as they only take into account the
>     clearance of the colliding track or the zone (as the arcs are
>     assumed to have a 0 clearance).
> 
> 
> Right, there's also some deep work in TRACK (and probably more) to
> support more than segments.
> 
>  
> 
>     And then there’s the question of editing.  How do you drag tracks
>     with curved corners?  Would one expect the PNS router to create
>     curved tracks under some set of conditions?
> 
> 
> I would love to document our expectations of this in written plan before
> anyone starts coding.  The UX requirements will drive how this is
> designed, to some extent.

I would consider this a must.  Having documented expectations of a major
change to KiCad's internals needs to be properly defined before any
coding begins.

> 
> Best-
> Seth
> 
>  
> 
> 
>     Cheers,
>     Jeff.
> 
> 
>>     On 1 Sep 2018, at 05:41, hauptmech <hauptmech@xxxxxxxxx
>>     <mailto:hauptmech@xxxxxxxxx>> wrote:
>>
>>      On 1/09/18 00:44, Wayne Stambaugh wrote:
>>
>>>     I don't ever remember myself or JP not being interested in round traces.
>>>      It's just been a matter of priorities and manpower.  
>>     With arc tracks I had an itch to scratch and tried twice to get
>>     core dev buy-in
>>     (https://lists.launchpad.net/kicad-developers/msg27878.html,
>>     https://lists.launchpad.net/kicad-developers/msg29877.html) so
>>     that I could put together a patch that used an approach that would
>>     get accepted. When suggesting options for modifying class TRACK I
>>     got silence from the core devs and took the hint. C'est la vie.
>>>     I do remember
>>>     being pretty firm on ensuring that the gerber plotting and DRC are
>>>     correct before the drawing tools and file format changes go live.  The
>>>     reason for this should be obvious.  Fixing the DRC is in the v6 road map
>>>     so that would be the best place to start for someone who has a lot of
>>>     free time.  
>>
>>     Why limit development to people that have a lot of free time?
>>
>>     The v6 roadmap has not been updated in a long time. What remains
>>     to be fixed? Looking at the commit history to DRCish files, it
>>     looks like there is plenty of activity going on. Can we ask those
>>     people to touch the roadmap and update it?
>>
>>     There have been some ambitious ideas posted on this list about
>>     what DRC needs to be, as well as bugs and blueprints. They are not
>>     in the v6 roadmap. Should any of them be added?
>>
>>
>>>     The amount of work to implement this is not going to be
>>>     trivial and I will expect the design and quality of the DRC code changes
>>>     to be high.
>>>
>>>     Cheers,
>>>
>>>     Wayne
>>
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