Topic: Altitude from Google Earth API

[FELIX]

It is possible to get altitude Google Earth API?

[Kerry]

Have you looked at the API ?

https://developers.google.com/maps/documentation/elevation/   

[VovKa]

http://www.theswamp.org/index.php?topic=33065.msg385105#msg385105

Code: [Select]

(defun vk_GetGEarthElevation (lat lon)
  (atof
    (last
      (assoc "elevation"
     (last
       (assoc "result"
      (last
(assoc "ElevationResponse"
       (vk_ReadXML
(strcat "http://maps.googleapis.com/maps/api/elevation/xml?locations="
(rtos lat 2 16)
","
(rtos lon 2 16)
)
       )
)
      )
       )
     )
      )
    )
  )
)
;;;(vk_GetGEarthElevation 50.747778 25.324444)

[FELIX]

Very good, perfect, VovKa.

OK.

[BlackBox]

Interested to see how this might be used with VERTCON.

Cheers

[danallen]

wow! what is the smallest resolution in feet or meters that can be obtained from database?

[VovKa]

wow! what is the smallest resolution in feet or meters that can be obtained from database?

as far as i know +/- 30м

[alanjt]

Holy crap. I've been playing with google earth to autocad integration, but I had no idea you could access the api via the internet. That's awesome! Thank you, Vovka.

[snownut2]

Holy crap. I've been playing with google earth to autocad integration, but I had no idea you could access the api via the internet. That's awesome! Thank you, Vovka.

http://www.theswamp.org/index.php?topic=45197.msg503894#msg503894

From August 2013...

[snownut2]

Google API in Action

[VovKa]

what coordinate system do you guys use in surveying and land development?
i could adapt my program for online maps so one can use it in the US

[alanjt]

what coordinate system do you guys use in surveying and land development?
i could adapt my program for online maps so one can use it in the US

I primarily use NAD83 Florida State Planes, North Zone, US Foot (FL83-NF). I notice the returned data is UTF-8. What decides this?

[VovKa]

I primarily use NAD83 Florida State Planes, North Zone, US Foot (FL83-NF).

thank you. i'll have to work on this one

I notice the returned data is UTF-8. What decides this?

google does

[VovKa]

I primarily use NAD83 Florida State Planes, North Zone, US Foot (FL83-NF).

Alan, i couldn't find any drawing in FL83-NF to test
can you please check http://www.theswamp.org/index.php?topic=47908.0 ?

[alanjt]

I primarily use NAD83 Florida State Planes, North Zone, US Foot (FL83-NF).

Alan, i couldn't find any drawing in FL83-NF to test
can you please check http://www.theswamp.org/index.php?topic=47908.0 ?

No dice. It put me in the middle of the ocean. What are you using to set the coordinate base? I've been playing with the ade_* functions, but I know they are only available with some of the vertical autodesk products.
I played around with the google api and was able to get it to download and load an image, but I'm not 100% on the scaling. What are you using for a scaling factor to bring in the image at the correct size? I suppose I should probably be asking these in the other thread.