topic Putting a marker on stitched openstreetmap tiles (Proc GEOCODE/ GPLOT) (modifying an example on Robert Allison's website) in Graphics Programming

Putting a marker on stitched openstreetmap tiles (Proc GEOCODE/ GPLOT) (modifying an example on Robert Allison's website)

morglum — Fri, 15 Aug 2014 13:09:15 GMT

Hi everyone,

I am trying to follow and slightly modify this example of Street-level geocoding on Robert Allison's website. I got the example to work and now I would like to put the marker on a 6x6 square of openstreetmaps tiles. I got it to mostly, but the resolution and quality of the bigger map is greatly reduced. I tried replacing the "goptions xpixels=400 ypixels=400;" line by something bigger such as "goptions xpixels=4000 ypixels=4000;", but all I get is a small low-quality map on a huge white square. What can I do?

To obtain the larger square, I use this image that spans x= 2040-2045 and y=4685-4690 (instead of the original tile that only covers t x=2042 and y=4687. The larger image was obtained by clicking enqueue at this link at bigmaps2 .

Thanks!

Simon

Re: Putting a marker on stitched openstreetmap tiles (Proc GEOCODE/ GPLOT) (modifying an example on Robert Allison's website)

GraphGuy — Fri, 15 Aug 2014 14:12:05 GMT

Morglum,

That particular example was meant to be very 'minimal' to demonstrate geocoding (that's why it only uses 1 map tile).

I would recommend using one of my other examples as your starting point. I have many examples that 'stitch' several map tiles together into a larger map, such as this one...

http://robslink.com/SAS/democd68/disney_benchmarks.htm

http://robslink.com/SAS/democd68/disney_benchmarks_info.htm

Or this one:

http://robslink.com/SAS/democd67/myrtle_beach_resorts.htm

http://robslink.com/SAS/democd67/myrtle_beach_resorts_info.htm

Re: Putting a marker on stitched openstreetmap tiles (Proc GEOCODE/ GPLOT) (modifying an example on Robert Allison's website)

morglum — Fri, 15 Aug 2014 16:00:47 GMT

Hi Robert,

Thanks for the links, I hadnt noticed these examples.

Re: Putting a marker on stitched openstreetmap tiles (Proc GEOCODE/ GPLOT) (modifying an example on Robert Allison's website)

Darrell_sas — Fri, 15 Aug 2014 18:35:13 GMT

Morglum,

You can also use a paper on http://support.sas.com/rnd/papers.

The paper shows you how to use an application I wrote to display an OpenStreetMap background image.

The paper title is; Google-like Maps in SAS

The paper and examples are at (the links are not permanent):

http://support.sas.com/resources/papers/proceedings13/377-2013.pdf

http://support.sas.com/rnd/papers/sasgf13/GooglelikeMaps.zip

Re: Putting a marker on stitched openstreetmap tiles (Proc GEOCODE/ GPLOT) (modifying an example on Robert Allison's website)

morglum — Tue, 19 Aug 2014 19:46:54 GMT

Thanks Darrell, this looks much easier to use than what I hacked based on Robert's examples. thanks for building this!