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Mapping

Show Profile  Michael Posted: 14 September 2018, 1:21 PM  
OCAD has moved to a subscription model, and is offering a discount for version 11 or 12 upgrades by the end of October. With limits on how far back it can save (guess why!) Over the next month users and clubs should consider their options.

One option is to consider the free Open Orienteering Mapper, but up until recently I have had doubts that converting files both ways would be robust - we have so much invested in OCAD files, and OCAD is a long way ahead in advanced facilities. (OOM acknowledges loss of geo-referencing information.)

However I have redone my basic test on OOM 0.8.2 - taking an OCAD file into OOM, checking it against a geo-referenced photo and a GPX file - and taking it back to OCAD again. With the limitation that going back saves as OCAD v8, things stayed in sync. You need to understand the two components of the angle, and there are lots of warnings about symbol translations both ways, but my major worry has gone. There is a version round the corner which will save as OCAD 8-12.

A fuller message is in preparation, so I would welcome any other experiences with file transfer to/from OOM.


Show Profile  Bryan Posted: 17 September 2018, 3:22 PM  
At the moment converting from OOM to Ocad and vice-versa is a pain. Nice to have a procedure of what to do and warnings/gotchas. My experience so far is that symbol sets are changed and it's quite tedious to have a mapper work on an Ocad extract and use OOM, then give you an Ocad export (where symbols have changed) and then you have to post back the changes to the Ocad master City map - several hours work just for a small extract. Add in the fact that contours have been changed and you have to edge match the borders of the extract and its a bit of a nightmare.

Also lots of warning converting from Ocad 2018 back to Ocad 9 or Ocad 8 - I'm worried that features are being changed (eg virtual gaps) as the earlier version does not handle it.

Show Profile  Michael Posted: 17 September 2018, 3:35 PM  
I have drafted a guide to the OCAD 12 Symbol Conversion Tool https://www.ocad.com/wiki/ocad/en/index.php?title=Symbol_Set_Conversion It revealed some frustrating fish-hooks (or quite possibly some blind spots in my thinking:-))) Take a look at the top item on www.mapsport.co.nz/mapresources.html. Comments welcome from those who have done ISOM2017 conversions.


Show Profile  Michael Posted: 17 September 2018, 5:47 PM  
Thanks Bryan, you're brave if you're grappling with all these issues in one hit! I'm cautious about using new facilities like virtual gaps, knowing they are going to be lost on a save-back. But merging an edited part of a map back into the master it came from is hard enough, let alone dealing with symbol differences and another software's different ways of doing things. Have you got any hair left?

Show Profile  Bryan Posted: 19 September 2018, 3:27 PM  
Barely. Actually, I had to deal with virtual gaps as they were introduced to maps which I've had to extend by two different mappers. I have since started to use them as they are useful to see where the contours went - things like brown X's and brown banks can be removed when trees are felled or features disappear.

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