kicad-developers team mailing list archive

[Mário Luzeiro <mrluzeiro@xxxxx>]

Thanks JP, thats it (width = 2*aClearanceValue).
I understand, my question was just for "visual / dimensional proposes" understanding, so I now understand what that code is doing.

Mario Luzeiro
________________________________________
From: jp charras [jp.charras@xxxxxxxxxx]
Sent: 19 June 2015 11:21
To: Mário Luzeiro; kicad-developers@xxxxxxxxxxxxxxxxxxx
Subject: Re: Clarification regarding D_PAD::TransformShapeWithClearanceToPolygon

Le 18/06/2015 22:53, Mário Luzeiro a écrit :
> Hello Jean-Pierre || all,
>
> @file board_items_to_polygon_shape_transform.cpp
> @function D_PAD::TransformShapeWithClearanceToPolygon
> @line 613
> https://github.com/KiCad/kicad-source-mirror/blob/0cab3e47ad8097db7b898b3cef2cf9b235318ca3/pcbnew/board_items_to_polygon_shape_transform.cpp#L613
>
> Is that equivalent as a simple 4 point polygon + 4 segments with a width=aClearanceValue ?
>
> Thanks for the clarification!
>
> Mario Luzeiro
>

4 point polygon + 4 segments give the same filled shape (with a width =
2*aClearanceValue).

However this is not equivalent when you have to combine this shape with
other polygons (for instance using this shape to make a hole in a ground
plane) or show an outline (sketch mode).
The final result is a single polygon, which can be combined with other
polygons in calculations.
This is not possible with 4 point polygon + 4 segments.


--
Jean-Pierre CHARRAS