Re: A How To - OpenOrieenteeringMapper through OOM to PurplePen

Posted by epeesharkey on
URL: http://maprun.308.s1.nabble.com/A-How-To-OpenOrieenteeringMapper-through-OOM-to-PurplePen-tp936p965.html

Hi @MichaelRaz

Yes, that all works fine! I actually found the instructions in the PDF "Steps" really clear and easy to follow.

So far I didn't actually create a Maprun, but I did the following: used your method to make a KML using controls placed with Purple Pen on a geo-reffed (in OOM)  Open Orienteering Map . Then used Google Earth Pro to test the locations of the controls.

Of course it is still more 'fiddly' than one would wish, but this does look like a great toolchain for an  'Orienteering' workflow. As you point out it overcomes the shortfalls in Open Orienteering Map and allows working in Purple Pen for creating events and courses. Bravo to you!

The steps towards a better jpg by extracting the tile from the KMZ also look straightforward, though I've not yet done it.

Step-by-step of what I did:

- Create 'blank' map in Open Orienteering web app at the right coverage and scale. Exported the jpg and jgw files (one note -- they need to have identical names apart from the extension).

- Opened OOM and did the template and geo-ref as in your instructions. (one note: your instructions say 'by EPSN code' -- in my version of OOM the corresponding option is 'by EPSG code'

- I could have but didn't edit the map in OOM, this would be a nice upgrade on doing it in the Open Orienteering web app or PP (where the edit facilities are very basic).

- Saved it as a OCAD using latest one (v10). Throws some warnings but creates.

- Made a new PurplePen event and used the OCAD map saved.

- Placed a Start and around 40 controls, exported as IOF XML 3. (note -- I think you should specify XML3 ?)

- I tried using the o-utils but had some problems with them (also found it too fiddly to have to work with an extra zip file)

- So for now I created a small script that converts the XML into KML.

- Just looking at it in Google Earth Pro - all the controls are 'pretty much' at the locations I expect from the map.

- Of course they are not exactly there, but I think this is normal (same as if I put controls on the Open Orienteering map and export the KML from there. ) Maybe I should think of adjusting the magnetic North (?)

- So I think a usual practice of moving the controls around in the GE and re-saving the KML will work fine. The PP controls are in the right place 'on the map' and don't need to move again.