Thanks Chris, I didn't even know such a thing as the LGOIMA and friends existed.
The CCC charge $70+GST/hr to extract the road data. Initially I was told it might take a few hours, but then was quoted half an hour yesterday. There was no mention of it being restricted in any way, but it was clearly not a request that they get very often, if at all. I didn't ask about the cadastral data. I've just discovered that I can download the road data (and lots of other digital data, including contours, but not cadastral) in ESRI Shapefile format from the ArcIMS viewer on the nztopoonline site: http://www.nztopoonline.linz.govt.nz/website/nztmtopo/viewer.htm You can only download the data while viewing at 1:50000 or closer. I've got all chch roads within a handful of downloads. Doesn't take too long. Wouldn't want to do it for a much larger area though, unless I can trick the software into thinking I can view huge areas at 1:50000 on the screen. I'm investigating quantum GIS (www.qgis.org) at the moment. The new 0.9 version has python scripting support which is exactly what I'm after. I downloaded it from svn last night and compiled it up. Looks pretty good so far. Chris, if you have the cadastral data for Chch, then that would be great. I need the info to identify end-points on a trip in the simulation. I could make some assumptions in the absence of the cadastral data, but it would be nice to have the actual data there. Cheers, Carl. On 28/09/2007, Chris Hellyar <[EMAIL PROTECTED]> wrote: > Hi-ho, > > Can't recommend a product, but am interested in the comment about CCC > being too expensive for the data, what did they want to charge you? > > For the 'Off topic' crowd, this is distinctly on topic for a FOSS list, > this is about the freedom of information. > > The PRA (Public records Act), LGOIMA (Local Government Official > Information and Meetings Act) and the OIA (Official Information Act) > clearly place information stored by government (local and central) in > the public arena unless there are good reasons it should be kept > private. ("Good reasons" are defined in the relevent legislation = lots > of legal jargon) > > Under LGOIMA they should provide that type of data, and can only charge > "reasonable" costs for collating and presenting the data. > > Additionally they cannot claim vendor copyright as an issue for it, as > LGOIMA indemnifies them from being prosecuted for disclosing copyrighted > information under the act. If you use copyright information disclosed > as the result of a LOGOIMA 'discovery' request for commercial gain or > outside the terms of it's original copyright then you are liable, not > the council. > > We have the Selwyn District cadastral and road centre lines at work (I'm > IS mgr for SDC), and may have a copy of the CHCH data as well from the > UDS project lying around. I'll forward your list email to work and see > what we've got on Monday. I will happily give you the data for free if > your use is non-commercial. > > > Cheers, Chris H. > > > On Fri, 2007-09-28 at 09:40 +1200, Carl Cerecke wrote: > > Hi all, > > > > I'm interested in doing some modelling of transport in Christchurch. > > > > I was wondering if anyone has experience using (and could recommend) a > > suitable GIS (or other suitable cartographic software) on Linux. There > > is a list of them at http://en.wikipedia.org/wiki/List_of_GIS_software > > Ideally, I would like it to be easily scriptable using python. > > > > Also, does anyone have access to the digital street-map info for Chch? > > Or even better the cadastral info for Chch? It doesn't have to be > > completely up-to-date. The old digital cadastral database would be > > sufficient. > > > > I asked the CCC, they have the road-centreline data but they are a bit > > too expensive. This is only a personal-interest project, after all. > > > > Cheers, > > Carl. > > > > > > > >
