AlaskaDave's Diary

Recent diary entries

I’ve been working on an project in my Thailand home of Nong Hoi in Chiang Mai province. Rather than reproduce the entire article here I include only the link:

Mapping in Thailand

Posted by AlaskaDave on 11 October 2013 in English (English).

This is my first contribution to the OSM diary section although I’ve been a very active mapper in Thailand for the past year or so. I write a travel blog and this post contains links to my blog posts that are about OSM mapping. The blog is titled I’m Outta Here because I left my home in Alaska to travel all winter back in 2009.

Mapping in Thailand Oct 2013 - Discusses language issues when mapping in Thailand.

A mapping run to Lamphun Feb, 2013 - Describes a typical mapping run I do with motorcycle and GPS in Thailand.

Mapmaking 101 Dec 2012 - My first big mapping effort using Potlatch2

One item that needs explanation in the most recent post is that I used 4,000 nodes to trace the Kiew Ko Ma Reservoir as discussed therein. I don’t know why I did that in retrospect. I wanted it to be accurate and went a bit overboard. The OSM is a street map after all. Then, when I tried to upload it from inside JOSM, the program informed me that 2,000 nodes was the most it would accept for a single relation. Not wanting to throw away any of my work, I split the relation in two and uploaded it that way. The OSM slippy map renders it okay but I’m concerned that this is not the proper way to handle the situation. There is a link to the area on OSM in the October blog post.

There are several islands in the reservoir that need to be added but I’m waiting to see how it all turns out before adding them. The reservoir itself is an inner member of a larger wood polygon already and islands are inner members of the reservoir. It is complicated. I do not understand relations well enough yet to proceed.

Anyway, that’s my story for now.

Location: Chang Phuak, Chiang Mai, Pa Daet, Saraphi District, Chiang Mai Province, 50030, Thailand