Friday, July 27, 2012

Mapping MasterClass with Mr Lotty

Dave followed up last year's fieldwork mapping class with the fieldwork to OCAD class he promised us.  It was a small but knowledge-hungry group that congregated at Coogee on Wednesday evening.  Kev Curby and Graeme Dawson, Helen and Terry and of course the hosting Joneses were there ready to drill Dave with all the irritating bits of OCAD that we had been struggling with on our own. And weren't there plenty?!  Too many frankly to list but Dave did ring afterwards to tell us something which I now write here for all of you intrepid OCAD warriors.

Dave says:If you want to align your scanned map with your OCAD working map go into 'Background map' on the tool bar and choose option 'Adjust map'.  Click a point on the background map that is obvious (a road junction for example) and then click on the same point on the OCAD working map and then press 'enter'.  This should align the maps perfectly.

If you have not scanned your background map with a precise north/south orientation - you're a dope!  However all is not lost - do as above, but click four corners (strictly north/south corners) of the background map and the OCAD working map and then press 'enter'. That should sort it out, but you can repeat the steps over again until you are completely happy with your map alignment.'

If any of that isn't clear, ask Dave.  Many thanks to Dave for his time and expertise.  I'll be twisting his arm again before too long for more of the same.  Right now I'm off to fiddle endlessly with OCAD  - that seemed to be one of the key messages from the evening!

1 comment:

Anonymous said...

I work at Emanuel School in Randwick, and one of the sports we do in PDHPE, I'm sure you'll be please to hear, is orienteering in Centennial Park.

To date we have set our own course using our own self made maps and moveable stations.

However, whilst I was setting today's course I noticed the permanent posts set up in the park.

I was wondering if it would be possible to acquire a map of the locations of the permanent posts – thus saving us a couple of hours each time we have to set up the course.

Any help you could offer here would be greatly appreciated.

Kind regards,
Dan
dhaesler[at]emanuelschool.nsw.edu.au
(02)8383 7338