kicad-developers team mailing list archive

[Marcos Chaparro <nitrousnrg@xxxxxxxxx>]

I don't really understand the options. Well, I do now but it took me a
while to figure it out. I find myself trying those dialog options one by
one until it is centered where I want to.

A while ago I realized I only use center on page and "Right top corner". If
I design the outline in freecad I make it centered at (0,0) coordinates,
thats not the center of a page, thats just centered at (0,0) but its called
"right top corner" in the import dialog.

I think its cleaner to say "centered on page" or "x,y cordinates", but
maybe you'll break someone's workflow if you remove the other options, or
at least the guy would have to figure out what those legacy options meant.



Marcos

On Sun, Aug 23, 2015 at 10:23 AM, jp charras <jp.charras@xxxxxxxxxx> wrote:

> Le 23/08/2015 09:18, Cirilo Bernardo a écrit :
> > Recently a user was asking about aligning the origin of a DXF import to
> the
> > pcbnew grid. I played with the import options a little in default and
> OpenGL
> > views and found:
> >
> > 1. default: except for "center on page" which seems to place the DXF
> origin
> > at the center of the page and aligned to the grid, the other import
> options
> > don't make sense to me.
> >
> > 2. OpenGL: the different import options only seem to affect the point
> > which is selected as the reference point for moving the DXF outline.
> >
> > In the first case I guess the user could always select "center on page",
> > but what if the user doesn't want the outline centered on the page?
> > In the second case while it is nice to set the reference point where you
> > want, the user has no control of what the reference point is and most
> > likely will be interested at placing the DXF origin at a specified point
> > on the page. Since the location of the chosen reference point for moving
> > the outline is not necessarily an integral number of grid divisions in
> > X and Y relative to the DXF origin, it can be impossible to place the
> > DXF origin where the user desires.
> >
> > So, for consistency and greater flexibility, what do people think about
> > specifying the grid point at which to locate the DXF origin? We can
> > remove the positioning options in the DXF import dialog and replace
> > them with a dialog specifying UNIT (mm, inch) and X, Y position on the
> > page. There may be no need to allow for the option to drag the
> > outline immediately after the import as is currently done in OpenGL.
> >
> > - Cirilo
>
> From my point of view, MCAD tools and EDA tools are 2 different worlds.
> So "asking about aligning the origin of a DXF import to the pcbnew grid"
> make not really sense.
> Moreover, Pcbnew has a lot of grids, and a Y axis reversed.
>
> A dialog specifying UNIT (mm, inch) and X, Y position on the board of
> the DXF origin makes more sense.
>
> But it is not a greater flexibility.
> Constraints to create an outline in Pcbnew and in a MCAD tool are very
> different.
> It could be just an other option.
>
> --
> Jean-Pierre CHARRAS
>
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