Dealing with a cheat.

[sms316]

A compass is actually quite useful on a heavily tree lined course Lubin. If you know which way the wind is blowing you don't need to guess from a secluded area.

[Golfnut]

If anyone on a golf course, playing golf, needs a compass to determine which direction they need to hit the ball then they need to take up lawn bowls.

[Courty]

i don't see how a compass would help the pro's, let alone anyone else.

I know this is regurgitating previous threads, but it's still very topical.

I was given an example along the lines of this: a golfer playing at a course like Augusta (tall trees lining every hole) on a cloudy day (can't see the sun). A compass would tell them which way north is, so they could work out which way the prevailing winds are blowing above the tree line.

IMO, the compass thing is a load of crap. I've been playing my home course for 20 years, and knowing which direction is North has not saved me a single shot in all that time.

[sms316]

Courty it won't make a lick of difference on your home track but I can tell you that over the last 3 years of adding at Coolum we lived off it (yardage book had north marked on each hole).

[Daves]

Courty it won't make a lick of difference on your home track but I can tell you that over the last 3 years of adding at Coolum we lived off it (yardage book had north marked on each hole).

Any Boy Scout with an Analogue watch can tell you where North is.

[Ashes]

Courty it won't make a lick of difference on your home track but I can tell you that over the last 3 years of adding at Coolum we lived off it (yardage book had north marked on each hole).

So if it's fine for a yardage book to have north marked on each hole, why is using a compass a problem??

[rubin]

So if it's fine for a yardage book to have north marked on each hole, why is using a compass a problem??

thats actually a good question....

whats the difference?

[sms316]

So if it's fine for a yardage book to have north marked on each hole, why is using a compass a problem??

Stuffed if I know. Do all yardage books have north marked on them or just the ones issued at professional events?

[Ashes]

I don't know, but if there's nothing stopping north being shown on a yardage book (whether course issued or
DIY) I can't understand why they'd disallow compasses.

[markTHEblake]

Don't you blokes know what an artificial device is yet?

[rubin]

Don't you blokes know what an artificial device is yet?

yes - speaking for most of us asking the question - we arn't idiots.

however as you seem to know everything - whats the difference between showing north on a yardage book (or course guide for that matter) and using a compass for the same thing?

[Monsta]

Some compass applications also give wind direction and speed.

[rubin]

Some compass applications also give wind direction and speed.

yes, but an actual compass itself does not. all it really does is tell you where north is.

[Monsta]

yes, but an actual compass itself does not. all it really does is tell you where north is.

But being a Confederate, we hate the North........

[popper81]

Now popper, no need to go that far.... all I am saying is there is a time and place for the www and I dont think the golf course is it !! Wait until you return to the clubhouse. Its a bit rude to have to wait for some inconsiderate p**ck to finish txting before he tees off, and how he ingores you while walking up the fairway with his phone in hand txting rather than being social.

Ohh post reported too

I am glad, those ***** do nothing.

[kev]

Does anyone know what spheroidal co-ordinate base is used when X company puts the maps into their data base. I'm presuming 90 odd percent are mapped off Google Earth which would more than likely use WGS84. That would translate differently to AGD94 (or AGD86, can't remember which is the current one) and you'd then get distance discrepancies.

[Courty]

Stuffed if I know. Do all yardage books have north marked on them or just the ones issued at professional events?

I just looked at the one I have that was produced before a Von Nida event was held here at Cairns GC. Sure enough, it has North marked on each hole.

Does anyone know what spheroidal co-ordinate base is used when X company puts the maps into their data base. I'm presuming 90 odd percent are mapped off Google Earth which would more than likely use WGS84. That would translate differently to AGD94 (or AGD86, can't remember which is the current one) and you'd then get distance discrepancies.

42.

[Courty]

Haysey raises a good question... would it be legal to use a smartphone to view a PDF of said course guide?

[kev]

Haysey raises a good question... would it be legal to use a smartphone to view a PDF of said course guide?

If there were 42 pages, it would probably be ok.

[kingslayer33]

Does anyone know what spheroidal co-ordinate base is used when X company puts the maps into their data base. I'm presuming 90 odd percent are mapped off Google Earth which would more than likely use WGS84. That would translate differently to AGD94 (or AGD86, can't remember which is the current one) and you'd then get distance discrepancies.

I know that you know the science Kev but why are you saying it would be a problem? Most GPS units (non golf) can be set to different coordinate systems. As long as the app, or unit, was using the same as it was mapped you would be fine. Unless you are talking grid/plane distances here and since we are talking about 80mm per 200m I'm pretty certain that wouldn't help too many of us.As a side note you can get apps that display coords in MGA format (GDA94) that I have used to find permanent marks. Best I have had so far is inside a 1m diameter.

[kingslayer33]

Sorry - stupid lite version killed my paragraphs.

[markTHEblake]

yes - speaking for most of us asking the question - we arn't idiots.however as you seem to know everything - whats the difference between showing north on a yardage book (or course guide for that matter) and using a compass for the same thing?

You just said quite adamantly you know what an artificial device is then you go and ask what is the difference between an artificial device and general information.

[kev]

Have you tried setting a mobile phone to a different co-ordinate system?

I would have thought distance markers on courses would be derived from GDA (given the surveyor would effectively be working in that when setting out the course) and the golf GPS device would be in WGS 84

I thought the difference was more than that. There you go

[Daves]

Does anyone know what spheroidal co-ordinate base is used when X company puts the maps into their data base. I'm presuming 90 odd percent are mapped off Google Earth which would more than likely use WGS84. That would translate differently to AGD94 (or AGD86, can't remember which is the current one) and you'd then get distance discrepancies.

Google Earth uses Simple Cylindrical projection with a WGS84 datum for its imagery base.

[kingslayer33]

But distance markers are relative to two points aren't they? In this case centre of the green. Therefore it doesn't matter which system any measurement is in because the 150m marker and the green would be relative to the other one only.

I think the old AMG coord system we used in Aus had a different centre of the system by about 200m to GDA and WGS84, but my same answer above would still apply.

BTW my grid/plane difference above is the diff. between grid coordinates from a GPS unit and what you would measure with a tape measure on the ground.