Should we open a SIS channel on Slack?

[Martin Desruisseaux <ma...@geomatys.com>]

Hello all

The Apache Foundation has a workspace on Slack on which people can 
discuss issues, solve problems, etc. in real-time [1]. There is channel 
for some existing ASF projects. Should we create a channel for SIS? For 
those familiar with Element (previously named Riot), it seems very similar.

If I understood correctly from discussion on ASF community mailing list, 
active Slack accounts cost some money to the ASF. So maybe we should 
create that channel only if we intent to use it. But I think it may help 
to move some discussions in a more open space.

     Martin

[1] https://infra.apache.org/slack.html

Re: Should we open a SIS channel on Slack?

[Martin Desruisseaux <ma...@geomatys.com>]

Hello Bruno

Thanks for the feedback. Having hear no objection, I just created a #sis 
channel on the-asf.slack.com. I presume that creating channel is free 
for the ASF.

Peoples having an email address in @apache.org (i.e. all Apache members 
and committers) can join at this link: https://the-asf.slack.com/

Other peoples can be invited if they wish. The Apache ISIS project has a 
nice documentation about the invitation process: 
https://isis.apache.org/docs/2.0.0-M3/support/slack-channel.html

I presume that the #sis channel will be quiet at least at first. I 
didn't though about using it as a reminder for vote threads. Thanks 
Bruno for the tip!

     Martin


Le 10/08/2020 à 12:37, Bruno P. Kinoshita a écrit :

> Hi Martin,
>
> I use Riot at $work, but keep an eye on some rooms at the-asf.slack.com. Some times I have too many e-mails to read, and miss the vote threads. That's helpful to have a place where the release-manager can alert others.
>
> The rooms I watch don't have a lot of activity, so it wouldn't be very hard to manage one more :) So I'd be in favor of a channel, at least for testing.
>
> Bruno

Re: Equation on the web page (was: Should we open a SIS channel on Slack?)

[Martin Desruisseaux <ma...@geomatys.com>]

Hello Shah

Note: this is a different thread than the original one about Slack channel.


Le 10/08/2020 à 12:38, shah.ahmed@seanews.co.uk a écrit :

> I'm looking at the equations and the website pages, I assume that this 
> is all to do with Mapping?
>
I'm not sure which pages we are talking about? The Apache SIS developer 
guide [1] and the Javadoc (e.g. [2]) have some equations, but most of 
them are somewhat specific to SIS. For example some equations give the 
matrices created by SIS for representing a unit conversion. If you are 
looking for map projection formulas, a good reference (the main 
reference used by SIS actually) is:

    EPSG Guidance Note 7-2
    Coordinate Conversions and Transformations including Formulas
    https://epsg.org/guidance-notes.html

Wikipedia and Mathworld are also useful references (there is links to 
those pages in SIS javadoc), but they usually have formulas for a 
spherical Earth only (i.e. ignoring the flattening at poles).

     Martin

[1] http://sis.apache.org/book/en/developer-guide.html
[2] http://sis.apache.org/apidocs/org/apache/sis/referencing/cs/CoordinateSystems.html#swapAndScaleAxes(org.opengis.referencing.cs.CoordinateSystem,org.opengis.referencing.cs.CoordinateSystem)

RE: Should we open a SIS channel on Slack?

[sh...@seanews.co.uk]

I'm looking at the equations and the website pages, I assume that this is all to do with Mapping?

-----Original Message-----
From: Bruno P. Kinoshita <ki...@apache.org> 
Sent: 10 August 2020 11:37
To: Apache SIS <de...@sis.apache.org>
Subject: Re: Should we open a SIS channel on Slack?

Hi Martin,

I use Riot at $work, but keep an eye on some rooms at the-asf.slack.com. Some times I have too many e-mails to read, and miss the vote threads. That's helpful to have a place where the release-manager can alert others.


The rooms I watch don't have a lot of activity, so it wouldn't be very hard to manage one more :) So I'd be in favor of a channel, at least for testing.


Bruno


On Monday, 10 August 2020, 10:04:39 pm NZST, Martin Desruisseaux <ma...@geomatys.com> wrote: 





Hello all

The Apache Foundation has a workspace on Slack on which people can discuss issues, solve problems, etc. in real-time [1]. There is channel for some existing ASF projects. Should we create a channel for SIS? For those familiar with Element (previously named Riot), it seems very similar.

If I understood correctly from discussion on ASF community mailing list, active Slack accounts cost some money to the ASF. So maybe we should create that channel only if we intent to use it. But I think it may help to move some discussions in a more open space.

    Martin

[1] https://infra.apache.org/slack.html

Re: Should we open a SIS channel on Slack?

["Bruno P. Kinoshita" <ki...@apache.org>]

Hi Martin,

I use Riot at $work, but keep an eye on some rooms at the-asf.slack.com. Some times I have too many e-mails to read, and miss the vote threads. That's helpful to have a place where the release-manager can alert others.


The rooms I watch don't have a lot of activity, so it wouldn't be very hard to manage one more :) So I'd be in favor of a channel, at least for testing.


Bruno


On Monday, 10 August 2020, 10:04:39 pm NZST, Martin Desruisseaux <ma...@geomatys.com> wrote: 





Hello all

The Apache Foundation has a workspace on Slack on which people can 
discuss issues, solve problems, etc. in real-time [1]. There is channel 
for some existing ASF projects. Should we create a channel for SIS? For 
those familiar with Element (previously named Riot), it seems very similar.

If I understood correctly from discussion on ASF community mailing list, 
active Slack accounts cost some money to the ASF. So maybe we should 
create that channel only if we intent to use it. But I think it may help 
to move some discussions in a more open space.

    Martin

[1] https://infra.apache.org/slack.html