Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread bvh
On Fri, Mar 14, 2008 at 02:06:04AM +0100, Frederik Ramm wrote: Merkaartor fully supports them (both in editing and rendering) Good to know. So for a lake with an island, Merkaartor only requires tags on the relation, and neither on the lake circumference way nor on the island circumference

Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread 80n
What we need is some decent test data. http://www.elbruz.org/islands/Islands%20and%20Lakes.htm Anyone fancy a mapping party in Luzon? 80n On Fri, Mar 14, 2008 at 6:45 AM, bvh [EMAIL PROTECTED] wrote: On Fri, Mar 14, 2008 at 02:06:04AM +0100, Frederik Ramm wrote: Merkaartor fully supports

Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread Robert Vollmert
On Mar 14, 2008, at 00:05, Frederik Ramm wrote: I'm currently working on a Perl re-implementation of Osmarender. It is already almost feature complete; I've made an early announcement on the [EMAIL PROTECTED] list: Great! change is the way polygons with holes are drawn. I want to switch

Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread Robert Vollmert
On Mar 14, 2008, at 10:01, Andy Robinson ((blackadder)) wrote: If I've got this all wrong then someone point me to better understand the problem. Small point: This is also about, say, clearings in forests and cemeteries in parks. Cheers Robert

Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread Andy Robinson (blackadder)
I'll admit and apologise that I haven't been following this thread too closely, but from skimming over the surface wanted to make a couple of observations. The way we currently draw coastlines, as a boundary between the landmass and a body of water sitting within the landmass is no different from

Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread Robert (Jamie) Munro
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Frederik Ramm wrote: | Hi, | | I think we should stick with the evenodd rule. It is not that difficult | for users when editing - colour on the right, it is neccesary for | coastlines, and there is nothing to gain by making it unneccesary. If | some

Re: [OSM-dev] Mapnik Q: enhance resolution?

2008-03-14 Thread Artem Pavlenko
On 13 Mar 2008, at 00:02, Tom Hughes wrote: In message [EMAIL PROTECTED] Artem Pavlenko [EMAIL PROTECTED] wrote: Great! Thanks Tom! rundemo.py outputs nice pdf and svg on os x 10.4. I'll give it a try on 64-bit ubuntu later on. Couple things I noticed when viewing demo.svg in

[OSM-dev] Rendering Rules

2008-03-14 Thread Brian Peschel
First, let me say I think the maps that Open Street Map are producing look great! So, here is my question(s). Based on what I can gather from the wiki, it looks like the US data all started from TIGER data and has been updated from there. And, again based on the wiki, all the rendering

Re: [OSM-dev] Rendering Rules

2008-03-14 Thread Andy Robinson (blackadder)
Brian Peschel wrote: Sent: 14 March 2008 1:19 PM To: dev@openstreetmap.org Subject: [OSM-dev] Rendering Rules First, let me say I think the maps that Open Street Map are producing look great! So, here is my question(s). Based on what I can gather from the wiki, it looks like the US data all

Re: [OSM-dev] Rendering Rules

2008-03-14 Thread Dave Stubbs
I have been playing with the Mapnik source code for rendering some maps. I have data in a custom format, so I had to write my own driver. Is there some place I can see the style definitions that are being used on Open Street Map? For example, as you zoom in, a road may appears black.

Re: [OSM-dev] Rendering Rules

2008-03-14 Thread Artem Pavlenko
On 14 Mar 2008, at 13:36, Dave Stubbs wrote: I have been playing with the Mapnik source code for rendering some maps. I have data in a custom format, so I had to write my own driver. Is there some place I can see the style definitions that are being used on Open Street Map? For

Re: [OSM-dev] Data donations by municipalities?

2008-03-14 Thread Jon Stockill
Sebastian Spaeth wrote: Hi all, Freiburg in Germany is sympathetic to releasing local geoinformation, but a precendent case might help to convince officials (told me another official). So, are there any cases where towns or municipalities have been releasing information (especially in

Re: [OSM-dev] Data donations by municipalities?

2008-03-14 Thread Frederik Ramm
Hi, Freiburg in Germany is sympathetic to releasing local geoinformation, but a precendent case might help to convince officials (told me another official). So, are there any cases where towns or municipalities have been releasing information (especially in Germany?) I could only name Boston

Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread Robert Vollmert
On Fri, Mar 14, 2008 at 11:39 AM, bvh [EMAIL PROTECTED] wrote: I disagree. Requiring mappers to add two ways that overlap completly is with the goal of making the math simpler is shifting the burden from software to users. On Mar 14, 2008, at 16:32, 80n wrote: Sometimes this is unavoidable.

Re: [OSM-dev] Advice sought on polygon-with-hole drawing

2008-03-14 Thread Igor Brejc
Jon Burgess wrote: From a pure design perspective the cleanest approach would be (IMO) to have the tags only on the relation. Otherwise there is always the possibility for ambiguity in cases where the tags on the outer ways differ. Yes this is an error, but one which is bound to occur