Accurate map measuring.

Aggieboy

Anyone know of a website where two points on a map can be measured accurately, in a straight line, to metres? Cheers.

desweller

For what purpose, out of interest?

You can turn off the road following feature in Bikely to have it plot straight lines between points. It will return a result to a precision of 10 metres, but I don't know if it is actually accurate to that degree.

Aggieboy

DesWeller wrote:

For what purpose, out of interest?

You can turn off the road following feature in Bikely to have it plot straight lines between points. It will return a result to a precision of 10 metres, but I don't know if it is actually accurate to that degree.

A family member wants to measure the distance of his house from a river for insurance purposes. It shows up as on a low risk 'flood plain', although he's halfway up a valley. If he's on a flood plain and likely to flood then I'm going to start building myself an Arc.

tim_wand

Take cover, Aggies getting the Howitzer out!!!!

Someone give him a descent site to do his projectories we dont want any collateral damage

Cleat Eastwood

haha he's trying to detect when to do a runner depending on how close the rozzers are hehe

you can use googlemaps aggie

click on google maps

look down the left hand column to the link map labs (i think thats what it is)

a pop up pops up, click the 'enable measuring' button

then in google maps just clck the little blue ruler at the bottom of the screen to activate it - you do metric or be 'geeky'

hth

McBain_v1

Don't use Google Earth because a lot of the satellite imagery is quite out of date.

pinno

Nope - Licensing rules. Cannot get on-line detailed maps with contour lines and elevation. Get off yer 4rse and go get an Ordanance Survey map of the area in question,
But that means you sit in your seat and wait for the postie to deliver it.

You could try:

http://www.amazon.co.uk/s/ref=nb_sb_nos ... y&x=9&y=16

Alternatively, get a student surveyor to do the job with a theodolite.
You can do a DIY job. It requires a spirit level, a long surveyors tape measure, 2 x T piece made out of wood and a 22ft long piece of twine. To get the straight line use the spirit level and then measure the drop in 20ft increments. Unfortunately, this is not officious enough to convince the insurance coy. - better to get them to actually go to the property in question and they will assess it. Easier said than done though.

freezing77

Aggieboy wrote:

Anyone know of a website where two points on a map can be measured accurately, in a straight line, to metres? Cheers.

Google earth

verylonglegs

McBain_v1 wrote:

Don't use Google Earth because a lot of the satellite imagery is quite out of date.

Imagery and distance are two very different things, just because the picture is old it won't actually change the physical distance!

RonB

If you pm me the OS coordinates I could get this using Arc10 GIS at work. Likely to give similar result to the Google, but might be worth a "second opinion". I'm not in the office 'till Friday though.

pinno

RonB wrote:

If you pm me the OS coordinates I could get this using Arc10 GIS at work. Likely to give similar result to the Google, but might be worth a "second opinion". I'm not in the office 'till Friday though.

Oooooooohh! is that the turbomatic GSX Carbon triple manifold double entry stoichiometric widgit valve with hystresis supression system Arc GIS model ?

Wassamatter wiv a stick, twine and a spirit level ?

BrianTrousers

pinarello001 wrote:

Nope - Licensing rules. Cannot get on-line detailed maps with contour lines and elevation. Get off yer 4rse and go get an Ordanance Survey map of the area in question,

Erm........

http://binged.it/KkHreE

pinno

BrianTrousers wrote:

pinarello001 wrote:

Nope - Licensing rules. Cannot get on-line detailed maps with contour lines and elevation. Get off yer 4rse and go get an Ordanance Survey map of the area in question,

Erm........

http://binged.it/KkHreE

I was convinced that some bullshit may persuade aggieboy to try my DIY method because I thought he was being lazy and should get off his pre-verbial...

BrianTrousers

Damn, I've ruined it again! :oops:

RonB

pinarello001 wrote:

Oooooooohh! is that the turbomatic GSX Carbon triple manifold double entry stoichiometric widgit valve with hystresis supression system Arc GIS model ?

I doubt it! Usually by the time we have adopted the "latest system" everything has moved on

pinarello001 wrote:

Wassermatter wiv a stick, twine and a spirit level?

Nothing - as with any of these systems if you put rubbish in you get rubbish answers back, and that can include the overhead photo's.

tim_wand

Pinarello001 I'd got one cued up about measuring the amount of time it took for a bowl full of water to run down the sink , but yours required much more effort on his behalf.

I m sure we could convince him he'd get much more accurate results using your method.

pinno

Yep, much more accurate. But RonB has spent a small fortune on his gadget and this is the first opportunity he has had to use it, so he is jumping up and down in excitement. Therein lies a dilemma:

Do we try to get aggieboy more active, healthy and subsequently happy or do we let RonB activate his home use hebron collider.
Sorry aggieboy it will have to be the latter, I can't take anymore personal insults...boohoo...naughty bully boy...i'm going off to tell the headmaster...sniff

RonB

Hebron collider...Israeli and palestinian forces would be interested in that gadget for sure

pinno

When you fire up your gadget - can you give us some warning, its just that when the lights dip, it will spook the heck out of the missus/cats/our elderly neighbor?

Stevo_666

Try this:
http://www.freemaptools.com/distance-between-uk-postcodes.htm
...as long as you know the postcodes.

JamesB

get a 1:25k OS map and then you can determine both linear (map) distance and height of house above river from reading contours; or take up offer of ARC-GIS which if it is as expert as MapInfo can pinpoint to cm.......used by all agencies as teh base mapping tool / system

Aggieboy

The most boring thread I've ever posted and it goes to 2 pages!!

As I'm sure you've all worked out it's actually my gaff and I'm just a bit worried about flooding the basement when I start digging it out, as it needs enlarging pending the 'Bottob Bracket' opening :roll:

Thanks RonB, I'll pm you. Pinarello you can stick your suggestion where a mourning Egyptian muslim is hoping to put his willie.

fibre

if you are going as far as putting OS coordinates into ARCGIS you might as well save youself time and just do the maths.
For horizontal distance its just Pythagorus for the linear distance. If you want straight line distance (ie as crow flies) then do Pythagorus twice, once for horizontal, second time for height.

ARCGIS is only as good as the baselayer data. Likewise using a 1:25000 map isnt going to do you much good.

You would get a better result going to your local council and having a look at their 1:5000 maps and getting a pair of coordinates from that. Plus of course, the larger the scale map you use to base your figures on (and tell them what you used), the more likely the insurance company will accept it.

Pross

Aggieboy wrote:

DesWeller wrote:

For what purpose, out of interest?

You can turn off the road following feature in Bikely to have it plot straight lines between points. It will return a result to a precision of 10 metres, but I don't know if it is actually accurate to that degree.

A family member wants to measure the distance of his house from a river for insurance purposes. It shows up as on a low risk 'flood plain', although he's halfway up a valley. If he's on a flood plain and likely to flood then I'm going to start building myself an Arc.

Always makes me laugh the 'are you within 400m of a river?' question. Surely it should take account of the height contours too?

Aggieboy

Pross wrote:

Aggieboy wrote:

DesWeller wrote:

For what purpose, out of interest?

You can turn off the road following feature in Bikely to have it plot straight lines between points. It will return a result to a precision of 10 metres, but I don't know if it is actually accurate to that degree.

A family member wants to measure the distance of his house from a river for insurance purposes. It shows up as on a low risk 'flood plain', although he's halfway up a valley. If he's on a flood plain and likely to flood then I'm going to start building myself an Arc.

Always makes me laugh the 'are you within 400m of a river?' question. Surely it should take account of the height contours too?

Yes, you'd have thought so, unfortunately not. Can't see any logical reason why they wouldn't. The house must be at least 60 m above the stream.

pinno

So if you can't be 4rsed to do the measuring yourself, I suppose now you are going to find someone on the forum to do the bloody digging as well?! Let me help.

Ben6899

S'all about Eastings, Northings and AOD innit.