OpenStreetMap

StephaneP has commented on the following diary entries

Post When Comment
Et si on cartographiait les Monuments Historiques ? 6 days ago

Il y a aussi Osmose qui permet leur intégration : http://osmose.openstreetmap.fr/fr/map/#zoom=11&lat=46.9422&lon=-1.3929&layer=Mapnik&overlays=FFFFFFFFFFFFFFFFFFFFT&item=8010%2C8011%2C8012&level=1%2C2%2C3&tags=&fixable=

RTK test, Aerial pictures accuracy, and OSM Database Accuracy 16 days ago

@philippec Could you explain our stupidity and make us smarter ?

RTK test, Aerial pictures accuracy, and OSM Database Accuracy 27 days ago

@Geonic,

PPP is usually used with dual frequency receiver (L1 + L2), and the RTKLIB dev doesn't recommend to use it with one one frequency. I've tested it but the results were not very good. And more important, PPP should be used in static mode, so you can't use it when you move. I've never read user reviews on this special "Ublox PPP", if you find one, i'm interested to read it.

@jcr83 Yes I'm aware of this chip (https://spectrum.ieee.org/tech-talk/semiconductors/design/superaccurate-gps-chips-coming-to-smartphones-in-2018). I hope we will see it soon in a final product. And other medium-cost L1/L5 receiver are already available (Siwft Navigation, Tersus).

There is a very interesting blog on precise satellite localization, but I don't understand everything : https://rtklibexplorer.wordpress.com

RTK test, Aerial pictures accuracy, and OSM Database Accuracy 29 days ago

I use two Navspark NS-HP (gps + beidou). http://navspark.mybigcommerce.com/ns-hp-rtk-capable-gps-gnss-receiver/

RTK test, Aerial pictures accuracy, and OSM Database Accuracy about 1 month ago

Ah bon ? Pourquoi ?

RTK test, Aerial pictures accuracy, and OSM Database Accuracy about 1 month ago

@SimonPoole Yes, the plates are moving, but it's a good idea to have a good relative accuracy. If a plate was moving at 10 meters each years, I still wan't to know if an object is 1 meter distant from another.

But I've calculate some distances on http://www.onlineconversion.com/map_greatcircle_distance.htm and tyr_asd is right, with the about 1 accuracy, so there is no problem. I think we have some time before we need a millimeter accuracy :-)

Bookmarklet OSM <--> Mapillary to rapidly switch between the two 4 months ago

Wooops ! I forgot to change my account !

Paris, France 5 months ago

Bonjour Cabanokid,

J'ai regardé, et je n'ai rien trouvé de particulier. La rue Léon-Maurice Nordmann n'a pas été modifiée géométriquement depuis 2 ans. Je l'ai ajustée un peu.

Pour joindre une image, il faut que celle-ci soit stockée quelque part, et donner son lien.

Construire son V4MPod pour prendre des photos à 360° about 1 year ago

Yes, camera are in landscape orientation, but it's not a problem because : - We were mainly in narrow underground corridor, so up and down coverage isn't interesting - If we wanted to stitch the pictures, in narrow place you should have a large overlap - We didn't want to stitch the 4 pictures, as it's time consuming and Josm doesn't support this type of pictures

If I had to stitch indoor pictures, I think I would add a fifth camera and put them in portrait orientation.

And... the last reason I choose this orientation is... It was easier to build in landscade as I can screw the cam on the mount :-)

My Plan to Create the Big Map of Sibiu – One House at a Time about 1 year ago

You could print a fieldpaper, it will consume less ink : http://fieldpapers.org/

My Plan to Create the Big Map of Sibiu – One House at a Time about 1 year ago

Why do you need to print the satellite imagery ?

New Telenav tool: Fix missing and wrong one-way streets almost 2 years ago

Nice tool ! But in my area, about 90% of the detected oneway, are invalid.

About the Josm plugin : I'm note sure if different button are useful. Perhaps only one with a checkbox solved/invalid. And I don't understand why I must write a comment when I close a segment. If it's invalid, there is nothing to explain, it's ...invalid.

Mapillary on the road almost 2 years ago

A lot of commons points with my experience. And when I explained some parts of your diary to my girlfriend, she said "I sympathize with his wife. We should make a group : The Osm/Mapillay contributors' wife" :-)

My report https://translate.google.fr/translate?sl=fr&tl=en&js=y&prev=_t&hl=fr&ie=UTF-8&u=http%3A%2F%2Fwww.stemani.fr%2Findex.php%3Fpost%2F2015%2F07%2F14%2FContribuer-%25C3%25A0-Mapillary-en-voyage&edit-text=&act=url

By the way, I tried the polarized filter : http://forum.mapillary.io/t/reducing-dashboard-reflections-with-a-cpl-circular-polarizer-filter/174

Mise à jour cartographie - Artois / Flandres / littoral about 2 years ago

Bienvenu Sylvain,

Envoyer sur le site tes traces gpx de ces chemins de randonnée, sera utile pour tout le monde. Si parfois tu roules "cool", tu peux aussi prendre des photos géolocalisées pour contribuer à [Mapillary](www.mapillary.com). Ces photos seront visibles dans les éditeurs OpenStreetMap iD et Josm. Si tu souhaites plus de détails, j'en parle ici : http://www.stemani.fr/index.php?tag/Mapillary

Cartes IGN sur OpenstreetMap about 2 years ago

Attention, ça ne veut pas dire qu'on peut prendre une carte Ign et recopier les détails dans la base OpenStreetMap. C'est même interdit.

Présentation about 2 years ago

Bienvenu !!

Et il y a de quoi mapper en Mayenne :-)

PANNEAUX PHOTOVOLTAIQUES over 2 years ago

hé ho !! Mes retours à la ligne sont cassés ! Je tente une seconde fois :

Tu veux dire, comment les décrire ?

Tu veux dire, comment les décrire ?

Ça commence avec le tag power=generator. Et ensuite on détaille, ce qui donnerait quelque chose comme power=generator generator:source=solar generator:method=photovoltaic generator:type=solar_photovoltaic_panel generator:output:electricity=xxx (puissance de sortie)

Lorsqu'il n'y a pas de tag existant, le mieux est d'en parler sur la mailing list dédiée : https://lists.openstreetmap.org/listinfo/tagging

Ou éventuellement sur la liste française : https://lists.openstreetmap.org/listinfo/talk-fr

PANNEAUX PHOTOVOLTAIQUES over 2 years ago

Tu veux dire, comment les décrire ?

Ça commence avec le tag power=generator Et ensuite on détaille, ce qui donnerait quelque chose comme power=generator generator:source=solar generator:method=photovoltaic generator:type=solar_photovoltaic_panel generator:output:electricity=xxx (puissance de sortie)

Lorsqu'il n'y a pas de tag existant, le mieux est d'en parler sur la mailing list dédiée : https://lists.openstreetmap.org/listinfo/tagging

Ou éventuellement sur la liste française : https://lists.openstreetmap.org/listinfo/talk-fr

Des français ici over 2 years ago

Rhooo... comment je me suis fait avoir comme un bleu... :-/

Des français ici over 2 years ago

Je crois même qu'on est assez nombreux :)