Re: [Talk-GB] Measuring building height

2019-03-20 Thread Warin
On 21/03/19 08:39, Devonshire wrote: This stuff is hilarious. Standing outside people's homes taking photos of their cars and house isn't going to end very well. I'd simply visually estimate the hight of a home - no photo required. For a multi story building visual estimations start to get

Re: [Talk-GB] Measuring building height

2019-03-20 Thread Devonshire
This stuff is hilarious. Standing outside people's homes taking photos of their cars and house isn't going to end very well. Is it maybe possible to get building heights from lidar data? Kevin On Tue, Mar 19, 2019, at 11:17 PM, Warin wrote: > On 20/03/19 07:51, Neil Matthews wrote: > > > >

Re: [Talk-GB] Measuring building height

2019-03-19 Thread Warin
On 20/03/19 07:51, Neil Matthews wrote: So, I just tried this and I think it has a reasonable chance of giving a reasonable result. Take a photo of a car outside the building. Measure number of pixels for the car and number of pixels for the building and the height can be approximated by:

Re: [Talk-GB] Measuring building height

2019-03-19 Thread Neil Matthews
So, I just tried this and I think it has a reasonable chance of giving a reasonable result. Take a photo of a car outside the building. Measure number of pixels for the car and number of pixels for the building and the height can be approximated by:     building_pixels / car_pixels *

Re: [Talk-GB] Measuring building height

2019-03-19 Thread Tony Shield
Hi Been figuring out how to do this for a while - my solution- rule - I used 30cm (aka 1 foot), calculator, known length of arm - in my case .6m, OSM map to measure distance from target. With hand holding rule vertically measure the target height against the rule for rule height, this is

Re: [Talk-GB] Measuring building height

2019-03-19 Thread Brian Prangle
There are also theodolite apps for smartphones On Tue, 19 Mar 2019, 00:17 Rob Nickerson, wrote: > For building heights why not try using a laser measure? Those with a > Pythagoras Measurement mode should automate the calculations for you. > > Price has fallen a lot over the years. Seems like

[Talk-GB] Measuring building height

2019-03-18 Thread Rob Nickerson
For building heights why not try using a laser measure? Those with a Pythagoras Measurement mode should automate the calculations for you. Price has fallen a lot over the years. Seems like even a basic £30 device is sufficient. Best regards, Rob ___