OpenStreetMap
I wrote my first pathetic greasemonkey script today to automate the mass deletion of badly formatted gps traces.
http://gitorious.org/osmgit/osmgit-test/commit/10cabe22aa1c23d9dcb45da5692c189c939c8c14
if you use reload every, it will delete page by page the current page of gps trails and the ones after it.
mike
osm.org/browse/node/856218729 spam being removed
Here is the second report from my style parser :
http://osmopenlayers.blogspot.com/2010/06/style-report-from-mapnik.html
code checked in here :
http://github.com/h4ck3rm1k3/GWTOsm in the branch expermental_styles.
Currently the code tracks the fields used in the sql queries and in the stylesheet rules.
I have implemented a rec descent parser for the mapnik style language, and am using the perl standard sql parser for the sql (not all is parsed perfectly)
But it gives you a first view of the key fields used in the style rules.
My first optimization will be to remove all data that is not used in the style information from the main memory. Even if we need to display funky attributes for objects in the detailed view, they can be stored on slower storage if needed.
The next steps will be to find the common conditions the many styles so that we can calculate a class of object just once.
I want to reduce the number of calculations based on the values of 1 or 2 fields in the object, we should be able to use the existing of a key or not to skip over lots of processing. Then for some keys, a simple lookup in a hash table will reduce many more. Then we should be able to evaluate some simple conditions to find the final class.
If this works out, the end result will be a simple automaton that works as a classifier and styler for OSM. it should be a single pass and straight forward to implement.
I have done some experiments with RelaxNG, it is possible to also describe many of the style rules as relaxng groups, but the runtime is not that fast, and the grammer becomes ambigious. You need to look ahead into the tag values to classify the objects.
I would think that in the end, it should be possible to create a better OSM xml that would not need to have lookahead for styling, that would mean creating more tags for the objects.
more to come.
mike
40 gps devices to be sponsored to train a OSM team for kosovo. Amazing! http://groups.google.com/group/free-software-conference/msg/cc770f12c79262cb?hl=en_US
here is an edited translation :
Today I had a very interesting meeting in implementing a pilot for IT in
Schools project funded by the European Commission.
I understood that this is a the most serious project in this field ever
implemented in Kosovo.
FLOSSK will that help train students in openstreetmap.org through a small
project.
There is up to 2,000 EUR budget to purchase GPS equipment.
I propose that these will buy GPS antennas that will operated with Sony
Ericsson Symbian or something similar. This gives us 40 x 50 EUR for buying
devices.
40 or 80 students from coming to Kosovo all the initial training in Pristina
to use the equipment.
After coming back from a 3-4 weeks training, they will help with GPS
trace processing and map building.
The purpose is educational.
Now we have a school in Pristina as an Umbrella for this project, they will
provide computers connected to the Internet.
please forward proposals.
Arianit
It has been one year since I started on working on openstreetmap.
Let me review how I got started.
Before OSM, I used google maps.
I did not bother with OSM, it was harder to use, the search functions were not as good, in general, for the average user, google maps seemed to be better.
Also when you search for things in google, you never see osm results.
of course they are excuses, the real reason is that I did not see any motivation for using OSM, and most importantly, it was not visible to me.
Even when I started to work on planning our kosovo conference, I noticed that the google maps were useless. They did not have anything useful for kosovo, but I still did not even bother to look for alternatives.
When I went to kosovo last year. I first saw the need for OSM.
I had a meeting with logistics plus, they showed me their gps collection device, and the infrastructure. www.logisticsplus-ks.com I saw the maps they used to display the results, and I asked if there was not an open source mapping toolkit. At that point I started to look for solutions for them.
Eventually we even got all of the gps data donated from www.logisticsplus-ks.com and we traced over them.
osm.wiki/Kosovo_LogisticsPlus_Tracing2
Now we have built up a couple of cities, we have gotten gps devices donated from drlizau, from rrota.com, from myself, (yet none from gpstogo or from osmf)
We have mapped alot of Prishtina, Gjakova, Gjlian, Prizren, and other cities.
We have gotten support from the local government, and from the un on projects in Brod and NovoBerdo which are ongoing.
There is even an creative commons tourist guide for Kosovo based on osm data :
http://kosovoguide.com/
We have went on to work on the skoder flooding in albania.
osm.wiki/AlbanianFloodingCrisisCamp
So, I personally have learned alot about gis, about osm and I would like to thank everyone for making a great community and system.
http://osmopenlayers.blogspot.com/2010/06/first-running-of-osm-gittorrent.html test of osm splitter over torrent. please peer!
next step in port of #oms josm to gwt : gwtosm now can display simple roads. http://osmopenlayers.blogspot.com/2010/05/next-version-of-gwtosm.html
now I could use some help, there are so many possible things to display, need to make tests for all of them. best would be test cases, i guess they could be extracted from the xapi...
What about an osm test case system for rendering? there must be such a thing, no?
mike
I have made a call to some of the top editors in Mississippi to help,
all are welcome as well.
http://wiki.crisiscommons.org/wiki/Mississippi#LetterToOsm
mike
see my blogpost,
http://osmopenlayers.blogspot.com/2010/05/start-of-gwtosm-port-of-josm-to-gwt.html
I have a first ultra baby step of displaying points of static data running in gwt, the new java to javascript compiler.
this problem occured in josm, any ideas_?
PUT http://api.openstreetmap.org/api/0.6/changeset/create... OK
POST http://api.openstreetmap.org/api/0.6/changeset/4770655/upload... Bad Request
Error header: Placeholder node not found for reference -56832 in way -56831
org.openstreetmap.josm.io.OsmApiException: ResponseCode=400, Error Header=
at org.openstreetmap.josm.io.OsmApi.sendRequest(OsmApi.java:622)
at org.openstreetmap.josm.io.OsmApi.sendRequest(OsmApi.java:505)
at org.openstreetmap.josm.io.OsmApi.uploadDiff(OsmApi.java:455)
at org.openstreetmap.josm.io.OsmServerWriter.uploadChangesInChunks(OsmServerWriter.java:163)
at org.openstreetmap.josm.io.OsmServerWriter.uploadOsm(OsmServerWriter.java:205)
at org.openstreetmap.josm.gui.io.UploadPrimitivesTask.realRun(UploadPrimitivesTask.java:237)
at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:83)
at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:129)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
http://ultimategerardm.blogspot.com/2010/05/albanian-languages-make-openstreetmap.html Albanian Gheg Openstreetmap at 30% ! Nice
check it out, gerard m posted this :
http://ultimategerardm.blogspot.com/2010/05/2010-flooding-of-albania.html
HI, I would think that we should be working with wikitravel, they
have also a creative commons license, but they are removing my osm links:
http://wikitravel.org/en/User_talk:H4ck3rm1k3
hi,
I finaly got around to trying traindirector,
it now compiles and my autotoolz patch is commited.
feel free to try:
http://gitorious.org/osm-traindirector
http://groups.google.com/group/traindir3?hl=en
mike
Here are my results of the meeting with the Vermessungsamt and suggestions on how a local government could benefit from OSM.
http://osmopenlayers.blogspot.com/2010/04/suggestions-for-offenbach-openstreetmap.html
mike
In Shkoder and Tirana this weekend, flossk will be holding presentations on openstreetmap and recruiting new members to openstreetmap
http://sfck09.blogspot.com/2010/04/httpgegnia.html Flossk Meets Flossal in Shkoder on Sat at 11 am
This is important to recruit new local members for mapping of Shkoder, we have been doing alot of work there.
the city of Prizren is one of the Jewels of the Balkans,
I invite you all to visit it virtually.
We now have a donated public domain map from the city planning board,
They have also given us detailed data whose license we are negotiating.
We have 1000 photos that I have taken and put on zoph here
use guest/password guest
http://xhema.flossk.org:8081/zoph-0.8.1/php/zoph.php
/me just got off the phone with the Vermessungsamt (city planning) commission in Offenbach they invited to me to come to them on Monday to talk about cooperation with Openstreetmap
I have made a patch for inkscape to paste in the openstreetmap way links for photomapping.
"create link to OSM way id in clipboard" is the new right click menu item,
it takes the current osm way id and makes a link like this in svg :
HRef:
osm.org/browse/way/667599314
Title:
Openstreemap Way number 667599314
Target : new
Code is here:
https://code.launchpad.net/~jamesmikedupont/inkscape/osm-inkscape
Demo Video:
http://www.youtube.com/watch?v=UApXq5_0yvk
Hi,
I have gotten a better technique for making photomaps using svg and inkscape,
it is really easy to use and you can color the imagemap how you want.
SVG Photomapping with inkscape
With Inkscape you can make the imagemaps much much easier,
just load them in and create a box over the building,
right click (create link) fill in the href with the osm id and target (new)
then you are done. Make sure you fix the image to be on a public server.
here is an example :
http://xhema.flossk.org:8080/mapdata/03/brod/imagemaps/p1000179.svg
Screenshot :
mike
