Re: [Talk-GB] Viability of huge shapefile of LandForm Panorama contours in Mapnik?

2011-03-07 Thread Phil Endecott
Hi Nick, Nick Whitelegg wrote: Sometime, perhaps over Easter, I'd like to do something I've been meaning to do for a while, and that is create pseudo-Landranger maps by combining OS Vector Map District, contours from OS Landform Panorama, and OSM footpaths. I will naturally be interested to

Re: [Talk-GB] Viability of huge shapefile of LandForm Panorama contours in Mapnik?

2011-03-07 Thread Andy Allan
On Mon, Mar 7, 2011 at 12:27 PM, Phil Endecott spam_from_os...@chezphil.org wrote: One issue that I would like to look at at some point is how to heal the contours. Why not generate contours from the DTM using e.g. gdal_contour? Or are the contours at a significantly different precision from

Re: [Talk-GB] Viability of huge shapefile of LandForm Panorama contours in Mapnik?

2011-03-06 Thread Graham Jones
Nick, This has been on my list of things to do for a while too, but like many of my project ideas, it didn't get that far! I do not have any experience of the OS contour files - I coudn't work out how to convert the dxf's into something more useable by mapnik (I quite fancied getting them into

Re: [Talk-GB] Viability of huge shapefile of LandForm Panorama contours in Mapnik?

2011-03-06 Thread Nick Whitelegg
Hello Graham, Nick, This has been on my list of things to do for a while too, Same with me, but it's never been the no.1 priority, hence it's never really seen the light of day yet. Maybe the next rainy weekend we get I'll do a concentrated push at it... but like many of my project ideas,