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Mapping

Show Profile  AnnaE Posted: 16 March 2014, 8:21 PM  
WOW - the white framing on the numbers as per Dwayne's map makes them so much easier to read. Hoping that this becomes standard practice :-)

Show Profile  Jymbo Posted: 17 March 2014, 1:20 AM  
Be careful when doing the white outline using CONDES You need to Bold the number, as the white 'bites' into the size of the number, reducing it back to being Normal If you make a big enough highlight (0.5)or something, you can get the number to disappear.

In the latest CONDES (9) you can highlight the line and the control as well. Luckily, this setting doesn't bite into the thickness of the lines, but still does for the numbers

Show Profile  theoman Posted: 17 March 2014, 10:39 AM  
TONIC will have white framing around the numbers. Entries close in 4 days.

Show Profile  Michael Posted: 17 March 2014, 4:09 PM  
Thanks Jim, explains why some attempts have not been successful.

Show Profile  Michael Posted: 17 March 2014, 4:55 PM  
Although we have been able to BUY aerial photography, and have enjoyed various ad hoc free arrangements, I think the following announcement from LINZ is very significant.

"LINZ has been working towards getting New Zealands most current publicly-owned aerial imagery  covering 95% of the country, freely available to use under an open licence through the LINZ Data Service. Last week, LINZ released all of the North Island aerial imagery on LDS, and will be rolling out imagery for the rest of the country over the coming months."

LINZ Data Service is at data.linz.govt.nz. The interface looks rather like Koordinates, I think K provides the platform. The images are georeferenced to NZTM which means that they can position themselves automatically in OCAD in version 10 or later. Or to say this in another way, a positioned image may be used to georeference an existing map and identify anomalies - THE most widespread need in orienteering mapping today, I believe.

Another quote: "Almost all data from LDS is provided under the Creative Commons Attribution 3.0 New Zealand licence. This means you are free to use, reuse and share data as long as you attribute the work to LINZ as the original source of the data." My comment: thanks to all those (including some orienteers) who have worked to make govt agency photography available more widely.




Show Profile  Dwayne Posted: 18 March 2014, 9:16 AM  
Just noticed the OCAD blog has instructions for framing control numbers in white. Not obvious because you have to change colour of the text to Purple (not purple transparent) before it works.
http://ocad.com/blog/2014/02/new-ocad-11-feature-for-course-setting/
Instructions start after the second map snippet

Show Profile  Michael Posted: 9 April 2014, 4:46 PM  
Shoulda posted this before now, but the MTBO Committee is working through some items brought to light by the January carnival, and this includes some mapping things. If you're a mapper with an interest in MTBO please contact Michael dot Wood, you know the rest.

Show Profile  Michael Posted: 15 April 2014, 11:57 AM  
If you have 43min to spare you might be interested in this presentation by the LINZ Data Service: https://www.youtube.com/watch?v=9Pz6QFkAAis
I was looking for an indication of when the South Island imagery would become available - they are saying "next couple of months".

Show Profile  Bryan Posted: 15 April 2014, 3:23 PM  
I think we need to celebrate when we hit 700 posts for the mapping thread.

Yes, the LDS video was interesting - I watched it as part of my work. Good news for orienteers with access to free data - completely changed from the dark days.

If anyone has a spare $450 you can get a copy of all imagery in NZ (a couple of terabytes) and you get to keep the hard drives as well.

Show Profile  Paul I Posted: 15 April 2014, 4:54 PM  
yay for both

Show Profile  Michael Posted: 5 May 2014, 5:11 PM  
The MTBO committee is working thru some questions that were raised during the carnival, and this one might benefit from other views. Often a MTBO map is largely straightforward tracks, plus a small number of places where things are very close together. Not necessarily a little "maze" though that does happen, but perhaps tracks come close together like a perimeter track on the edge of the forest just a few metres away from a public road. We might want to mark the fence between (its an obstacle) or perhaps we might want to put no-go crosses on the road. There's sometimes a limit to which we can exaggerate the tracks apart to make room. And things have to be VERY legible for riders.

One of the solutions is to use a larger scale. Between 15,000 and 10,000 the symbols enlarge so that doesn't help us, but it could help between 20-15,000, and between 10-5000. Now the 64,000-dollar question. Should we restrict ourselves to the common scales such as 20k, 15k, 10k, 7.5k etc. Or is it OK to use the biggest that will fit our std paper sizes, eg 16,500, or 9,000, whatever. To what extent do orienteers rely on a subconscious "feel" for one of a limited number of scales? Or can they be expected to adjust to any scale thrown at them?

Show Profile  fraser Posted: 15 May 2014, 7:09 PM  
The rest of the aerial imagery data including layers for the South Island are now available on the LDS. You can view and download the complete dataset here:

https://data.linz.govt.nz/x/vuozYk

Show Profile  Michael Posted: 16 May 2014, 4:39 PM  
Got this the other day and it's worth sharing. You can guess how it came about but how about who it came from... "Just the other day I ggeoreferenced an orthophosphate..."

Show Profile  Michael Posted: 30 May 2014, 11:08 AM  
When you download from those magnificent LDS photos for a big area you get a lot of "tiles". (1X1.5km in the one I'm using.) You can easily open them as a group with shift-select, but is there a way to switch them on/off, dim etc as a group in OCAD? From time to time I want to see my OTHER backgrounds.

Show Profile  Dwayne Posted: 30 May 2014, 11:38 AM  
I joined 4 jpg tiles together which helped me get around the 5 background image limitation of OCAD 11 Starter Edition. Use GIMP and open all jpgs as different layers, slide them around to match up and then export as new jpg. Then rename the JGW file of the top left corner tile to match the new file name. Then there is just one background image to toggle.


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