Hi, although I'm untrained in the black arts of GIS, I have this
irresistible urge to convert my interior building maps, currently in
vectored PDF, into something like OGR, in order to georeference them,
in order to cram them into Mapnik, in order to spit out map layers, in
order to stuff them in the iPhone as statically available maps, with
on demand markers and annotations.
Looking on Google for GIS conversion stuff to get to OGR from other
vector graphics, this software came up. I've got it all compiled and
installed and now it seems VectorSection has a means of getting *to*
PDF, but not for getting *from* PDF. Any advice on such a thing?
Unfortunately, that converter has not been started. And, although I am trained in the black arts of GIS, I am not aware of a method to go from vector pdf to another vector format. It seems there should be some proprietary graphics packages out there that could convert it to something like SVG, but I am not aware of any off the top of my head. Chris
On Thu, May 28, 2009 at 11:43 PM, grgcombs <gco...@gmail.com> wrote:
> Hi, although I'm untrained in the black arts of GIS, I have this > irresistible urge to convert my interior building maps, currently in > vectored PDF, into something like OGR, in order to georeference them, > in order to cram them into Mapnik, in order to spit out map layers, in > order to stuff them in the iPhone as statically available maps, with > on demand markers and annotations.
> Looking on Google for GIS conversion stuff to get to OGR from other > vector graphics, this software came up. I've got it all compiled and > installed and now it seems VectorSection has a means of getting *to* > PDF, but not for getting *from* PDF. Any advice on such a thing?
>VectorSection has a means of getting *to* PDF, but not for getting
*from* PDF.
Hi, the crs2pdf was a very short experiment and probably has quite a ways to go still. From what I've seen of PDF, it looks like it is easier to write than read. But, I haven't tried reading it, so it might map pretty easily.
If you can figure out how to code something to get at the vector drawing aspects of a PDF, I can help get from there to .crs (actually, OVP) -- which is already well-connected to svg.
--Eric -- "It works better if you plug it in!" --Sattinger's Law --------------------------------------------------- http://scratchcomputing.com ---------------------------------------------------
On 29 май, 16:47, Chris Somerlot <csomer...@gmail.com> wrote:
> Unfortunately, that converter has not been started. And, although I am
> trained in the black arts of GIS, I am not aware of a method to go from
> vector pdf to another vector format. It seems there should be some
> proprietary graphics packages out there that could convert it to something
> like SVG, but I am not aware of any off the top of my head.
That's a good sign. One could actually use inkscape as a command-line tool to get to svg, but you're still going to need to get from svg to dxf, etc. The OVP hub (formerly "chromista") has good svg support.
The OVD data is different from OVP in terms of what sort of curves can be expressed and how entity geometry is specified. Simple entities are easy to do somewhat losslessly, but even they have linetype and other properties which don't have an analog in one format or another.
On May 28, 8:43 pm, grgcombs <gco...@gmail.com> wrote:
> Hi, although I'm untrained in the black arts of GIS, I have this
> irresistible urge to convert my interior building maps, currently in
> vectored PDF, into something like OGR, in order to georeference them,
> in order to cram them into Mapnik, in order to spit out map layers, in
> order to stuff them in the iPhone as statically available maps, with
> on demand markers and annotations.
> Looking on Google for GIS conversion stuff to get to OGR from other
> vector graphics, this software came up. I've got it all compiled and
> installed and now it seems VectorSection has a means of getting *to*
> PDF, but not for getting *from* PDF. Any advice on such a thing?
I have found pstoedit to be quite helpful for converting pdf and ps
files to vector formats. We use it at work to extract DXF files from
customer supplied PDF's.
