[OSGeoLive] Proposing t-rex vector tile server

Angelos Tzotsos gcpp.kalxas at gmail.com
Mon Aug 13 02:30:40 PDT 2018


Dear Pirmin,

Thank you for the details!
Strong +1 from me to add t-rex to OSGeoLive.

I see a pull request in place already:
https://github.com/OSGeo/OSGeoLive/pull/232

Since we are very close to the release of 12.0 version, perhaps we should
include t-rex without adding the documentation yet, since our translators
will have zero time to translate until release. In any case, for 13.0 we
would need a project overview and a quickstart.

Best,
Angelos

On Mon, Aug 13, 2018 at 12:35 AM Pirmin Kalberer <pi_ml at sourcepole.com>
wrote:

> Hi all,
>
> Referring to https://trac.osgeo.org/osgeolive/ticket/1881, I'm proposing
> adding t-rex to OSGeo Live.
>
> Description:
>
> - What is its name?
>
> t-rex
>
> - What is the home page URL?
>
> https://t-rex.tileserver.ch/
>
> - Which ​OSI approved Open Source Licence is used?
>
> MIT
>
> - What does the application do and how does it add value to the
> GeoSpatial? stack of software?
>
> t-rex is a standalone vector tile server supporting PostGIS and GDAL
> datasources.
>
> - Does the application make use of OGC standards? Which versions of the
> standards? Client or server? You may wish to add comments about how
> standards are used.
>
> t-rex supports OGC simple feature data (plus ISO curves) and vector tile
> output in OGC WMTS compatible grids.
>
> - What language is it written in?
>
> Rust (https://www.rust-lang.org/)
>
> - Which version of the application should be included in the next
> OSGeo-Live release?
>
> 0.9.0
>
>
> Stability:
>
> - If risk adverse organisations have deployed your application into
> production, it would imply that these organisations have verified the
> stability of your software. Has the application been rolled out to
> production into risk (ideally risk adverse) organisations? Please
> mention some of these organisations?
>
> Known users are a national ornithological institute, real estate
> companies and public transport organisations. There was user feedback at
> FOSS4G conferences from national cadastral and mapping authorities about
> their use of t-rex for creating vector tiles.
>
> - ​Open HUB provides metrics to help assess the health of a project. Eg:
>http://adhoc.osgeo.osuosl.org/livedvd/docs/en/metrics.html Could you
> please ensure that your project is registered with Open HUB, and Open
> HUB has been updated to reference the correct code repository(s) for
> your project. What is the Open HUB URL for your project?
>
> https://www.openhub.net/p/t-rex-tileserver
>
> - What is the size of the user community? You can often answer this by
> mentioning downloads, or describing a healthy, busy email list?
>
> Download statistics:
>
> https://www.somsubhra.com/github-release-stats/?username=t-rex-tileserver&repository=t-rex
> Total Downloads: 1,440 -  278 hub.docker.com pulls.
> Communication is currently limited to Github and personal feedback to
> presentations at conferences.
>
> - What is the size of your developer community?
>
> Main application: 1 main committer, 8 code contributors
> Web-UI: 2 main committers
> rust-postgis: 2 main committers, 4 code contributors
> rust-gdal: 2 main committers, 9 code contributors
>
> - Do you have a bug free, stable release?
>
> Releases since 0.6.0 are considered production ready.
>
> - Please discuss the level of testing that your project has gone through.
>
> There is a built-in test suite which is automatically executed on Travis
> CI.
>
> - How long has the project has had mature code.
>
> The first public release was 2016-08-17 and version 0.6.0, which is
> considered production ready, was released 2016-11-07.
>
>
> - OSGeo-Live is targeted at applications that people can use rather than
> libraries. Does the application have a user interface (possibly a
> command line interface) that a user can interact with? (We do make an
> exception for Incubated OSGeo Libraries, and will include Project
> Overviews for these libraries, even if they don't have a user interface.)
>
> t-rex is an application with a command line interface and a built-in
> web-based user interface.
>
>
> - We give preference to OSGeo Incubated Projects, or Projects which are
> presented at ​FOSS4G conferences. If your project is involved in OSGeo
> Incubation, or has been selected to be presented at FOSS4G, then please
> mention it.
>
> There were t-rex specific FOSS4G presentations and vector tile
> presentations covering t-rex among others.
>
>
> - With around 50 applications installed on OSGeo-Live, us core packagers
> do not have the time to liaise with every single project email list for
> each OSGeo-Live release. So we require a volunteer (or two) to take
> responsibility for liaising between OSGeo-Live and the project's
> communities. This volunteer will be responsible for ensuring the install
> scripts and English documentation are updated by someone for each
> OSGeo-Live release. Also test that the installed application and
> Quickstart documentation works as expected on release candidate releases
> of OSGeo-Live. Who will act as the project's liaison person.
>
> Pirmin Kalberer
>
> - OSGeo-Live is Ubuntu Linux based. Our installation preference is:
>          Install from UbuntuGIS or DebianGIS
>          Install .deb files from a PPA
>          Write a custom install script
>
> Deb Package for Ubuntu is available.
>
>
> Installation:
>
> - OSGeo-Live is memory and disk constrained. Can the application run in
> 512 Meg of RAM?
>
> Yes.
>
> - How much disk space will be required to install the application and a
> suitable example application?
>
> ~13MB for application binary
>
>
> - We aim to reduce disk space by having all applications make use of a
> common dataset. We encourage applications to make use of the example
> datasets already installed:
>http://wiki.osgeo.org/wiki/Live_GIS_Add_Project#Example_Datasets If
> another dataset would be more appropriate, please discuss here. Is it
> appropriate, to remove existing demo datasets which may already be
> included in the standard release.
>
> Examples are based on Natural Earth dataset.
>
> - Each OSGeo-Live application requires a Project Overview available
> under a ​CC By and a Quickstart available under a ​CC By-SA license.
> (You may release under a second license as well). Will you produce this?
>
> Yes.
>
> - In past releases, we have included Windows and Mac installers for some
> applications. It is likely we won't have space for these in future
> releases. However, if there is room, would you be wishing to include
> Windows and/or Mac installers?
>
> A Windows installer (MSI) is available. For Mac there is a binary only.
>
>
> Regards
> Pirmin
>
> --
> Pirmin Kalberer - @implgeo
> Sourcepole - http://www.sourcepole.com
> _______________________________________________
> osgeolive mailing list
> osgeolive at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/osgeolive
>


-- 
Angelos Tzotsos, PhD
OSGeo Charter Member
http://users.ntua.gr/tzotsos
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