kicad-developers team mailing list archive

[Wayne Stambaugh <stambaughw@xxxxxxxxx>]

Unless we can figure out how to set the grid origin using a single
origin, I don't see how we can get rid of it.  One thing we have done a
poor job of is providing an easy way to clear the grid origin.  I would
like to see a reset grid origin menu entry.

On 5/18/19 2:22 PM, Jeff Young wrote:
> I agree that we want one movable origin, but I don’t think we need two.
>  The local origin should work fine for placing components relative to
> each other, routing, etc.
> 
>> On 18 May 2019, at 18:59, Reece R. Pollack <reece@xxxxxxx
>> <mailto:reece@xxxxxxx>> wrote:
>>
>> Once you establish a base coordinate origin, you really don't want
>> that moving. All the mechanical holes, notches, connectors, switches,
>> clearances, and other locations are measured from that origin. Moving
>> during layout risks placing a component in the wrong spot.
>>
>> The movable grid origin is extremely useful for placing components or
>> routing tracks relative to each other. It's a feature I suspect many
>> people use and depend on. And no, you don't want to move the base
>> origin for this and then hope you move it back to exactly the same
>> spot later.
>>
>> The "local origin", the one you set with the space-bar, is handy for
>> measuring distances without needing to use a measuring tool. The "Move
>> Exactly" dialog uses this to good effect to allow rotation about a
>> spot, though one might argue that the grid origin could easily be used
>> for this.
>>
>> I'm just finishing up a set of patches that allows the user the option
>> to see all coordinates displayed relative to the Aux Origin or the
>> Grid Origin. The only real complexity in this is the need to pass a
>> reference to the transformation class down to all the places its
>> needed, just as you had to pass the user's units choice to those same
>> places when you removed g_UserUnit last year. This keeps all the
>> transformations from the internal origin to a display origin and back
>> in one place. With this in place, doing things like allowing the user
>> to choose to make the Y-axis increase UP rather than DOWN is trivial
>> (which I've already done).
>>
>> The origin that is utterly useless at present is the page origin
>> somewhere near the upper left corner of the paper drawing frame
>> surrounding the board layout. If you could lay out a board so the page
>> origin was usefully related to the board's dimensions this would be
>> okay, but right now you end up with the paper page's "frame"
>> overlaying your board. Get rid of the frame and everything else
>> associated with the layout being a paper drawing rather than a digital
>> model of the PCB, and we don't need the Aux Origin.
>>
>> -Reece
>>
>> On 5/18/19 1:17 PM, Jeff Young wrote:
>>> Hi Eeli,
>>>
>>> I’d argue that you explained what it was useful for, not why it is
>>> “needed”.  I can understand offsetting the grid; I can’t say I
>>> believe it’s important enough to support the code and UI complexity
>>> that it brings.
>>>
>>> Cheers,
>>> Jeff.
>>>
>>>
>>>> On 18 May 2019, at 14:12, Eeli Kaikkonen <eeli.kaikkonen@xxxxxxxxx
>>>> <mailto:eeli.kaikkonen@xxxxxxxxx>> wrote:
>>>>
>>>>
>>>>
>>>> la 18. toukok. 2019 klo 13.38 Jeff Young (jeff@xxxxxxxxx
>>>> <mailto:jeff@xxxxxxxxx>) kirjoitti:
>>>>
>>>>     We need fewer origins.
>>>>
>>>>     I like the name Coordinates Origin, but why do we then need a
>>>>     Grid Origin?  And why a setting for the displayed coordinates? 
>>>>     Shouldn’t that always be the Coordinates Origin?
>>>>
>>>>     Cheers,
>>>>     Jeff.
>>>>
>>>>
>>>> I think this was already discussed in
>>>> https://bugs.launchpad.net/kicad/+bug/1773638 and I explained why
>>>> distinct Grid Origin is needed.
>>>>
>>>> Eeli Kaikkonen
>>>> _______________________________________________
>>>> Mailing list: https://launchpad.net/~kicad-developers
>>>> Post to     : kicad-developers@xxxxxxxxxxxxxxxxxxx
>>>> <mailto:kicad-developers@xxxxxxxxxxxxxxxxxxx>
>>>> Unsubscribe : https://launchpad.net/~kicad-developers
>>>> More help   : https://help.launchpad.net/ListHelp
>>>
>>>
>>> _______________________________________________
>>> Mailing list: https://launchpad.net/~kicad-developers
>>> Post to     : kicad-developers@xxxxxxxxxxxxxxxxxxx
>>> Unsubscribe : https://launchpad.net/~kicad-developers
>>> More help   : https://help.launchpad.net/ListHelp
>>
>> _______________________________________________
>> Mailing list: https://launchpad.net/~kicad-developers
>> Post to     : kicad-developers@xxxxxxxxxxxxxxxxxxx
>> <mailto:kicad-developers@xxxxxxxxxxxxxxxxxxx>
>> Unsubscribe : https://launchpad.net/~kicad-developers
>> More help   : https://help.launchpad.net/ListHelp
> 
> 
> _______________________________________________
> Mailing list: https://launchpad.net/~kicad-developers
> Post to     : kicad-developers@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~kicad-developers
> More help   : https://help.launchpad.net/ListHelp
>