OpenStreetMap

z-dude has commented on the following diary entries

Post When Comment
How do you map house numbers efficiently? 9 months ago

some people interpolate numbers based on house numbers at the start and end of a street. I think they use Josm. You typically see 2 rows of dots with just address information.

This works in grid style streets in North America where street numbers increment on a known rate. This may not work well in older towns where the streets follow spaghetti network.

new useful proposal 9 months ago

I disagree with the idea of tagging clouds.

People have already tagged the limits of the hires imagery in the past, but in some cases, the imagery has been updated, but the relations have not been updated.

To a casual mapper, updating relations can be a confusing task, especially on odd shapes or relations with many parts.

An example - high res imagery boundary in Mali http://www.openstreetmap.org/relation/2770026#map=6/19.280/0.780

I'd rather see 'fixme' tags on roads which have been interpolated under cloudy imagery.

Automated Street name abreviation replacements 10 months ago

Automation gives you results like Street Elmo's Street

La cartographie humanitaire OSM évaluée par la croix-rouge US et REACH 10 months ago

You may want to consider the use of drones and a camera to get aerial imagery.
Quadcopters are as cheap as 300 dollars and just need electricity to recharge and many can carry a payload. I'm not sure if a Canon GPS camera can take pictures in intervalometer mode, but if it can, you can have a quadcopter creating gps tagged images for a city.

Important unpaved roads exist, so wiki.openstreetmap.org/wiki/Highway needs a reboot 12 months ago

My experience has been that people are trying to force their personal standards over other people. I don't recognize the Proposed Africa page as valid due to the current lack of participants in it's discussion, and I don't think a handful of people on that page have the authority to tell OSM how to map the roads of a billion people in Africa.

When you go and delete someone's ways because they drew a track instead of a primary road, then there's something wrong with your people skills.

Egypt-Sudan Un-correct Border JOSM help 12 months ago

The US Canada border loosely defined as '49th parallel' is actually hundreds of segments defined by precisely measured monuments. See the http://internationalboundarycommission.org/

49th parallel segment http://internationalboundarycommission.org/coordinates/M49thp.txt

Lost city in Darfur about 1 year ago

Great work with the Wiki article!

Lost city in Darfur about 1 year ago

There's 2 camp-like spots about 40 km's west of Buram. Perhaps that's the real location of Gereida. http://tools.geofabrik.de/mc/?lon=24.34983&lat=10.77741&zoom=11&num=2&mt0=mapnik&mt1=bing-satellite

Lost city in Darfur about 1 year ago

I'm sure that it's Gereida because the coordinates match the UN map http://www.lib.utexas.edu/maps/africa/txu-oclc-224306541-sudan_darfur_2007.jpg The size of the city matches the approx 120,000 people there.

I think Gereida needs it's own Wikipedia article. The population was 120,000 in 2008
In the last week, 10,000 people moved there. http://allafrica.com/stories/201312050311.html Gereida is a term used in the news.

This UN map has a 'Gerida' I'm not sure if that's the name of a small village before 130,000 people moved in. http://unamid.unmissions.org/LinkClick.aspx?fileticket=SOZJ9VBg2Ag%3D&tabid=11744&language=en-US

This UN map calls it Graida http://www.un.org/Depts/Cartographic/map/dpko/unamid.pdf

This UN map calls it Gereida. http://reliefweb.int/map/sudan/sudan-reference-map-september-2012

Unicef shows 'Gerida' http://www.unicef.org/mena/MENA-UNICEF_Sudan__-_September_2013_SitRep_-_External_Version.pdf

Oxfam calls it Gereida http://www.oxfam.org/en/programs/emergencies/sudan/sudan_gereida_dayinthelife

I think most of the aid groups call it Gereida.

This BBC story says that Oxfam pulled out of Gereida in 2007

I think you're doing a great job mapping these two cities.

Lost city in Darfur about 1 year ago

Sheet 14, above, shows Nyala. http://www.lib.utexas.edu/maps/ams/africa/txu-oclc-6589746-sheet14-6th-ed.jpg

Lost city in Darfur about 1 year ago

There's some place names in this map as well. http://www.lib.utexas.edu/maps/ams/africa/txu-oclc-6589746-sheet19-4th-ed.jpg but I think the towns may have changed names since then, Buram is on the map between 24 and 26 degrees in an upper quadrant.

Lost city in Darfur about 1 year ago

It may be Gereida http://www.lib.utexas.edu/maps/africa/txu-oclc-224306541-sudan_darfur_2007.jpg

The library of Texas has a huge map collection, http://www.lib.utexas.edu/maps/sudan.html some older maps and some US govt maps are public domain.

OSM so versatile. E.g. ski XC pistes are welcome over 1 year ago

have you seen openpistemap?

http://openpistemap.org/

Would there be any use for a builder=* tag? over 1 year ago

Vancouver has a couple of reputable builders.

Opony goodride over 1 year ago

polski spam

I think Lake Faguibine in Mali should be restored. over 1 year ago

Thanks Jean-Marc.

Google chrome has a translate option. it looks like it was well discussed.

Take care.

Just started mapping actively in Brisbane - I have a few questions! almost 2 years ago

Adding an address node also preserves the address in case anyone decides to delete and retrace a big complicated building.

Just started mapping actively in Brisbane - I have a few questions! almost 2 years ago

for addresses, I usually see people add an address node separate from the building, so a coffee shop, bank and grocery store will have different addresses or unit numbers in an address.

Just started mapping actively in Brisbane - I have a few questions! almost 2 years ago

The name tag will be rendered. Sometimes when a building is built, it will have a name of it's own, ie "Carlton Building"

Example: The Vancouver Art Gallery is in the old provincial courthouse building.

The addr:name is Vancouver Art Gallery the name attached to the building tag should match the building plaque on the building, but I'm sure that someone tagged the building name as Vancouver Art Gallery because that's what we've locally known it as for decades.

On implied turn restrictions and armchair mapping almost 2 years ago

go to hell with your attitude