maning's diary

Recent diary entries

new imagery available in Bulacan, Pampanga and Nueva Ecija area (SPOT5)

Posted by maning on 21 January 2010 in English (English)

This came from the SPOT5 donated by Spot-Asia and Certeza Infosys last
year. Pixel resolution is around 10 meters date taken 2008-03-12.

Instructions on how to use in the wiki:

And my blog post here:


Location: to Pinagrealan Cave, Bigte, Bulacan, Central Luzon, Philippines

a lot of whitespace for Philippine armchair mapping

Posted by maning on 18 January 2010 in English (English)

I recently created a wikipage for the inventory of high-res images available for the Philippines [1]. I found out there's a lot of work we can do even without GPS.

Armchair mapping can be very handy to add road stubs and other details even if you don't know much of the area.

I found out recently a typical newbie behavior in the Philippines. Newbies usually don't touch white areas even if there is available high-res imagery. They usually correct something or add a few minor details that go out into the vast whitespaces.

Seeing the whitespots from my highres imagery inventory page, I started adding road along the Pampanga area [2] and will continue in the coming days. I hope newbies locals can fill in the details.

Anyone can also contribute, but for now, I encourage everyone to donate some mapping time to Haiti [3] and Albania [4].


suggested features to map in Haiti

Posted by maning on 15 January 2010 in English (English)

I suggest we focus tagging these features for Haiti Openstreetmap Response. Most of these features are visible in the GeoEye imagery.

- Roads
- Bridges
- Temporary campsites - tourism=campsite refugee=yes
- Damaged Buildings - building=collapsed
- Large open spaces to serve as relief operation centers

More info here:

Location: 1re Saint Martin, Delmas, Ouest, Port-au-Prince, Département de l'Ouest, Haiti

2010 Plans for Mapping Marikina City, Philippines

Posted by maning on 4 January 2010 in English (English)

For the past years I am continuously editing Marikina City for roads, cycleways and footways. I believe OSM has the most "road complete" map of this City. However, I haven't really made a systematic approach or metric to say it is complete. You just have to take my word for it.

So for this year, I made a checklist of what to map and started logging all my activities in my wiki page:

I hope in twelve months or less I can finally declare this patch as "complete" and move on to mapping (ugh!) house numbers.

Location: New Marikina Subdivision, Santa Elena, Marikina, Metro Manila, 1800, Philippines

holiday edits in Marikina

Posted by maning on 29 December 2009 in English (English)

I've been filling small gaps on my relatively "road complete" patch this holiday. Funny you can still find a few footways here and there.

So far I was able to:
- complete city administrative boundaries:
- add a few POI along one of the major commercial strip:
- edited and merged several landuse boundaries

POI mapping is relatively easy on bike and a camera. You need to slow down a bit and try to balance one hand holding the gps (I don't mount the unit onto my bike because vibration for smoothness:horrible roads makes my trace wiggle unnecessarily) and the other holding the digital camera.

There is a little bit of personal bias with my preference on what POI to map. Others can of course fill in the gaps.

One question, on estimating the distance of POI from the road, I usually place it 5 -10 meters from the road centerline depending on how wide the roads are. Is this common practice?

Location: Marikina East Subdivision, San Roque, Marikina, Metro Manila, 1800, Philippines

finally edited my first trace

Posted by maning on 17 December 2009 in English (English)

I've been a member of this project for nearly 4 years. Today I finally traced and edited the very first GPS track I uploaded.

I have completely forgotten this trace because loading the java editor back then was painfully slow.

Location: Maharlika Highway, Tuguegarao, Cagayan, Cagayan Valley, 3500, Philippines

roads in Baguio City mapped but not yet useful

Posted by maning on 30 November 2009 in English (English)

I have been tracing roads around Baguio City for the past weeks. The data came from some of my traces and high-res imagery. The tracing from high-res imagery were tagged as highway:road and a FIXME note.

By my rough estimate, this covers more than 50% of the roads already. However, most roads have no names and the appropriate highway type. Tracing can only go this far if local knowledge is limited.

The only way the data becomes useful (around this area) is when locals start adding and improving the data. Community is much more important than any data import.

Still, I hope my contributions would provide local mappers a good canvas to start adding the details.

I hope the data becomes useful by summer of 2010 when tourist start climbing this popular summer getaway.

Location: Supreme Court Compound, Prieto Compound, Military Cut-Off, Benguet, Cordillera Administrative Region, 2600, Philippines

should every OSMer be an expert in Geodesy?

Posted by maning on 5 November 2009 in English (English)

Found this from a blog comment about OSM.

"I suggest that you should invite a mapping professional into your group. Mapping is not a kiddy thing. It requires knowledge on Geometric Geodesy and GPS Systematic Errors. Without the required knowledge, doing mapping is just like wearing a blindfold blindly."

newbie: I want to contribute to OSM
OSM "expert": Welcome! I suggest you start reading ASPRS journals on Geodesy and GPS geometric corrections.
newbie: OH OK, bye.

A lot of new contributors in the Philippines

Posted by maning on 14 October 2009 in English (English)

I am seeing a lot newbies adding POIs and streetnames around the Philippines lately.

Welcome guys/gals!
We have a lot of work to do :)

If you have questions, ask me. Or better, subscribe to the osm philippines mailing list:

Our wikipage is here:

Keep on mapping!

unsolicited map advert

Posted by maning on 3 September 2009 in English (English)

found this while compiling node stats.

amenity:1 hectare commercial prop. for sale jun domingo 09228829926 1
amenity:1.1 ha. commercial property for sale 09228829926 1
amenity:2 storey building 213m2 for sale 1
amenity:2 storey building LA 210m2 for sale 09228829926 1
amenity:684m2 commercial lot for sale 09228829926 1

created by this user:

expressive changesets

Posted by maning on 31 July 2009 in English (English)

Lately, I've gotten bored with my changeset comments. The usual comments like "add new POI at road X" or "edit X footway" doesn't tell much about how I feel during editing sessions. In order to spice them up, I'm adding more expressive comments on my changesets.

Some are here:
1. A requested edit of my daughter

2. A mouth watering POI edit

3. A frustrated edit

OSM-PH Tagaytay Mapping Party

Posted by maning on 21 May 2009 in English (English)

My post-party blog report on the our Fist OSM-PH Tagaytay Mapping Party:

Location: Purok 157, Tagaytay, Cavite, Calabarzon, 4120, Philippines

OSM-PH mapping part May 16, 2009 at Tagaytay City

Posted by maning on 30 April 2009 in English (English)

OSM-PH is inviting Philippine-based mappers to join in our very first
OSM-PH mapping party in tagaytay city.

* When: Full day of May 16, 2009
* Where: Tagaytay City
* Target: map all roads, POIs and tourist attractions. The gameplan is to
produce a comprehensive map suitable for basic navigation both for tourists and

Check out the wikipage for updates:

Sama na kayo! This will be a fun day.

Location: Purok 157, Tagaytay, Cavite, Calabarzon, 4120, Philippines

Vacation offer: Map the Island of Boracay!

Posted by maning on 19 February 2009 in English (English)

Enthropia is making an offer to an openstreetmapper to gather information and map the whole island of Boracay. The map bounty: 25,000 Philippine Pesos.

Boracay in Openstreetmap is fairly complete, but as we say in OSM, “it’s a wiki, it’s never complete”.

My post on the announcement here:

seeing new Pinoy mappers lately

Posted by maning on 4 February 2009 in English (English)

Acoording osmaware:

There are a couple of new mappers in the Philippines today.


We invite you to join the OSM Philippines community. Please add your name at our wiki page:

And join the discussion in our maililist:

Keep on mapping!

user:maning on OSM Philippines - 2008

Posted by maning on 6 January 2009 in English (English)

here's my brief take on what happened for OSM Phillipines last year:

user:maning on OSM Philippines - 2008

any milestone I missed?

OSM Philippine website

Posted by maning on 15 December 2008 in English (English)

Just to announce, OSM Philippines project has a dedicated simple
website for the project.

Thanks to for helping us. We will do incremental
improvements along the way.

I wonder what tags are used in philippine contributed gpx traces

Posted by maning on 7 November 2008 in English (English)

From wordle


Nice updates for Metro Manila

Posted by maning on 6 November 2008 in English (English)

I have to say the recent Mapnik update for Metro manila is looking quite extensive!

- Paranaque and Las Pinas are getting more coverage (though a lot has no names)
- More buildings added
- North Caloocan gets some love (partly by me, need to add road names)
- We now have municipal/provincial boundaries (which of course can be improved further)
- Taytay from rally's data import
- More landuse added
- And oh! I really liked this one:

At this rate, I can boldly say we can get the Metro Manila completed by the end of 2009! (At least for roads).
The black-holes that needs volunteers are Muntinlupa, Taguig, Pateros, Caloocan, Valenzuela, Navotas and Malabon.

But something really bugs me, why is Jolly Recreation Center so prominent in Osmarender?

Keep on mapping guys!

Location: Green Hills East Subdivision, Wack-Wack Greenhills, Mandaluyong, Metro Manila, 1556, Philippines now using openstreetmap

Posted by maning on 23 October 2008 in English (English) the premiere volunteer driven travel site of the Philippines

Now uses openstreetmap for some of their destinations.

waypoint narrative:
waypoint map:

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