Blanki g cooker isolation under sink to pass EICR

[JohnW2]

I have both, and use both, although TBH the use of the paper atlas is far less frequent, and if I was made to have only one it would be the satnav. I use it for journeys where I need no navigation input because it knows if there are traffic problems, and will route me away from them.

Essentially the same with me - so I'm not sure that we are actually 'arguing' about anything!

But it can't do what I alluded to earlier - if you've got a couple of hundred miles to do, and several hours in which to do it, it can't plan an A to B to C to D to E to F to etc, where A, B, C.. are small villages and the "to's" are country lanes without even a B number, let alone motorways, trunk roads, or A###.

I can't say what is implemented by all the devices and 'apps', but that would surely be fairly easy to achieve, wouldn't it? The 'satnav' in my phone not only shows my village and all the 'country lanes' around it, but also my house and even some of its outbuildings - so adequate resolution is certainly there!

Like music, videos, images - it's digital. Maps are analogue.

It is, but in terms of resolution of data the distinction between analogue and digital is, in practice, essentially artificial. Any real-world system for measuring, storing or using 'analogue' data will have a finite resolution, hence a finite limit to how how close two values can be ... so effectively 'digital'.

 

[morqthana]

I can't say what is implemented by all the devices and 'apps', but that would surely be fairly easy to achieve, wouldn't it? The 'satnav' in my phone not only shows my village and all the 'country lanes' around it, but also my house and even some of its outbuildings - so adequate resolution is certainly there!

Zoom out until your phone display covers a real-world distance of 100 miles from top to bottom.

Does it still show every village, and every minor road?

 

[JohnW2]

Zoom out until your phone display covers a real-world distance of 100 miles from top to bottom. Does it still show every village, and every minor road?

Of course not - that's what 'zooming' is about (concentrating on just a small bit at a time of the 100 mile 'high' bit).

How large a paper map are you envisaging that would/could show "every village and every minor road" over a distance of 100 miles?

 

[Harry Bloomfield]

I can't say what is implemented by all the devices and 'apps', but that would surely be fairly easy to achieve, wouldn't it? The 'satnav' in my phone not only shows my village and all the 'country lanes' around it, but also my house and even some of its outbuildings - so adequate resolution is certainly there!

The same here. Mine can show our summerhouse, the garage, the workshop extension, built on the back of it, even a mock 'wishing well' - that suggests, it is derived from the OS data.

 

[JohnW2]

The same here. Mine can show our summerhouse, the garage, the workshop extension, built on the back of it, even a mock 'wishing well' - that suggests, it is derived from the OS data.

Indeed. As I said, I don't know to what extent satnav 'apps' make use of all the available data, but there certainly is very high resolution data out there.

One issue would seem to be that many/most satnavs ae postcode-driven (or 'address driven'), so that might be a problem for people with an interest to getting to/from places 'in the middle of nowhere' (that 'nowhere' having no buildings)?

 

[Harry Bloomfield]

One issue would seem to be that many/most satnavs ae postcode-driven (or 'address driven'), so that might be a problem for people with an interest to getting to/from places 'in the middle of nowhere' (that 'nowhere' having no buildings)?

The one in my car, I can either provide it with a house number, and postcode, or a street address. A much older portable one, only did the full address, or LAT/LONG, so was a compromise between road navigation, and hill walking. That worked very successfully, for navigating me to all the banks, I used to have to find, back in the day. It only let me down once, trying to take me over a too narrow packhorse bridge, in the wilds of Lancashire

 

[JohnW2]

The one in my car, I can either provide it with a house number, and postcode, or a street address.

Same here

A much older portable one, only did the full address, or LAT/LONG, so was a compromise between road navigation, and hill walking. ...

The latter (or some sort of a map reference) is obviously what is needed for areas away from buildings, but it's not a facility I've noticed in satnavs in recent times (albeit I haven't looked for it). Have I perhaps missed this facility?

 

[Harry Bloomfield]

The latter (or some sort of a map reference) is obviously what is needed for areas away from buildings, but it's not a facility I've noticed in satnavs in recent times (albeit I haven't looked for it). Have I perhaps missed this facility?

I once needed to use LAT/LONG during an urgent 999 call, but they were not able to make any sense of LAT/LONG.

Not that I'm aware, but I'm not very up-to-date these days. I wonder is any directly support 'three little words'?

 

[morqthana]

Of course not - that's what 'zooming' is about (concentrating on just a small bit at a time of the 100 mile 'high' bit).

How large a paper map are you envisaging that would/could show "every village and every minor road" over a distance of 100 miles?

Oops - sorry - got my units & dimensions muddled.

10's of miles, or km, high/wide, 100's of m²/km².

The point is that a map which shows, say, phone boxes, road gradients, and churches (distinguishing between those with towers and those with steeples and those with neither) will do that whether you look at a portion covering 500m x500m or 20km x 20km. A map on a phone or satnav screen won't.

 

[JohnW2]

Oops - sorry - got my units & dimensions muddled. ... 10's of miles, or km, high/wide, 100's of m²/km².

Fair enough, but that doesn't much alter the generality of my response?

The point is that a map which shows, say, phone boxes, road gradients, and churches (distinguishing between those with towers and those with steeples and those with neither) will do that whether you look at a portion covering 500m x500m or 20km x 20km. A map on a phone or satnav screen won't.

Is that necessarily true? As I said, I can see outhouses in my garden on a zoomed map in my phone - and Harry's appearance seems similar.

 

[morqthana]

Is that necessarily true? As I said, I can see outhouses in my garden on a zoomed map in my phone - and Harry's appearance seems similar.

Are they still there if you zoom out so your phone is showing a 10kmx5km area?

 

[morqthana]

Not that I'm aware, but I'm not very up-to-date these days. I wonder is any directly support 'three little words'?

The what3words system and app is free for anyone to use. The company states that its revenue comes from charging businesses that benefit from its products.

So selling a satnav system which supported W3W would attract a licence fee.

 

[JohnW2]

Are they still there if you zoom out so your phone is showing a 10kmx5km area?

Presumably not. My greenhouse is about 2.5m long, so would be represented by about 0.03 mm (30 microns) in the "10km direction" on my phone's~120mm screen. I don't think my eyes would be up to seeing that, even if the screen had small enough pixels

You seem to be overlooking the point of zooming (coupled with scrolling).

 

[JohnW2]

.... So selling a satnav system which supported W3W would attract a licence fee.

Indeed so. I presume that lat/long is non-proprietary and hence 'free to use', but I wonder if, at least theoretically, one is meant to pay to make commercial use of OS grid references?

 

[morqthana]

You seem to be overlooking the point of zooming (coupled with scrolling).

You seem to be overlooking the fact that when you zoom out on a satnav or other digital map application to see a larger area you lose detail.

When you unfold a paper map to see a larger area you do not lose detail.