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ingenieroariel / yolanda

GeoNode
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Generate a map of OSM activity from Day -2 of the Typhoon to present #23

Open opendri opened 10 years ago

opendri commented 10 years ago

Show OSM activity from 2 days before the Typhoon to the present, allowing Keiko to see where activity has been and (by inference) where work has been based on pre-event imagery and post-event imagery.

jj0hns0n commented 10 years ago

We may be able to set this up to visualize temporally as well, so we could just move the slider to the time. Alternatively, load up pre and post event osm data separately.

Jcrowley commented 10 years ago

Wait, there is an OSM time slider?! I have been begging for this since 2010. It exists?

Sent from my iPhone. Please excuse typos and brevity.

On Nov 25, 2013, at 8:50 PM, Jeffrey Johnson notifications@github.com wrote:

We may be able to set this up to visualize temporally as well, so we could just move the slider to the time. Alternatively, load up pre and post event imagery separately.

On Mon, Nov 25, 2013 at 4:58 PM, OpenDRI notifications@github.com wrote:

Show OSM activity from 2 days before the Typhoon to the present, allowing Keiko to see where activity has been and (by inference) where work has been based on pre-event imagery and post-event imagery.

— Reply to this email directly or view it on GitHubhttps://github.com/ingenieroariel/yolanda/issues/23 .

— Reply to this email directly or view it on GitHub.

jj0hns0n commented 10 years ago

Rogue has integrated temporal playback. We can hook it up for osm probably.

ScottEvil commented 10 years ago

@Jcrowley that would be awesome wouldn't it? So @jj0hns0n we had the time slider working in Salamati but it may have broke before the OD. We can see if it works tomorrow. That doesn't solve the immediate problem though as we'd have to add Salamati to this GeoNode instance to have it working.

In what granularity does this need to be? Daily or just a snapshot for before and after?

Jcrowley commented 10 years ago

OSM: That would blow my mind.

Sent from my iPhone. Please excuse typos and brevity.

On Nov 25, 2013, at 9:02 PM, Jeffrey Johnson notifications@github.com wrote:

Rogue has integrated temporal playback. We can hook it up for osm probably.

— Reply to this email directly or view it on GitHub.

ScottEvil commented 10 years ago

@jj0hns0n Hooking it up for OSM isn't a problem if we put a timestamp on the nodes and ways after we import it. We'd have to work the data a bit after import to set it up. It will take some work I think.

jj0hns0n commented 10 years ago

We can make a simple geoexplorer build that adds the time slider without the rest of salamati for now. I'll look into it. Others have asked, see GeoNode list.

jj0hns0n commented 10 years ago

Should be able to load it with geogit this way and just configure the date fields in geoserver. Let's see

vdeparday commented 10 years ago

@Jcrowley @jj0hns0n @ScottEvil Is it that easy? You would need a full history dump for the area? Because with regular export and/or overpass API, as far as I know, you only get the last version and the associated timestamp for the last version for a feature. However, most of these buildings were first traced and then they were edited to be marked as collapsed or not so if you just use a regular export, you will only get the time when they were edited last and not when they were created? Or are you able to import the full history with geogit easily?

ScottEvil commented 10 years ago

@vdeparday It's not really straightforward. GeoGit lets you diff two commits. So we never implemented a commit playback in Salamati - it would run too slow. We compare commits and it would display on the screen. We'd need to build a tool that would grab all of the commits from GeoGit and export them to something like PostGIS. @volaya has been doing the most with OSM import so maybe there's a trick we don't know.