JK sprint map

[andy]

Since reading this thread and looking at the map again using a magnifying glass and in good light I still conclude that the wall is black enough on the map to be interpreted as uncrossable, same blackness as in the key.

It's definitely lighter (or at least was on mine) than the actual uncrossables, although I wasn't 100% convinced myself until I asked the controller after my race.

[andypat]

There's definitely a difference if you compare the two, but on its own the crossable is a bit hard to tell. This is a useful conversation to have if it helps set some printing standards going forward. There were also one or two issues with the printing of the British Sprint maps as I recall.

[graeme]

I thoroughly enjoyed the sprint courses.
I have seen some comments on Nopesport regarding the green and walls. I suspect that the issue is that overprint effect is ticked for Black, Black 50%, Green and Blue in colour table of the ocad file. This would precisely explain the issues with the map.

In the latest BOF symbol sets we have corrected this so that overprint effect is only ever used with Brown 100% and Purple 100%.

Which is correct.

This "overprint effect" setting is the default in OCAD-ISSOM. Some printers use it, others like mine don't. The pdf proof maps I got back from the printer have a much paler grey than the final paper copy. Map group suggest that anyone using OCAD-ISSOM change this setting in the OCAD color table.
But note that grey should be printed under brown, so you might still get strange effects with walls on tarmac, depending on the printer.
Didn't anyone notice which colours/symbols were actually wrong?

[andypat]

Didn't anyone notice which colours/symbols were actually wrong?

Well unless there actually was an orchard.....

[Scott]

In the SE corner of the map there's a small area of white wood/crossable marsh, the western border of which looks suspiciously like a 0.18mm black line. Not sure what that's about.

Well, if you will ask...

[mharky]

It's a bit strange that ISSOM mentions "grey" in the printing section, yet in the symbol section all the grey symbols are made up of %s of black.