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Re: Plotting data over USGS DOQ images. [message #25356 is a reply to message #25354]

Tue, 05 June 2001 14:20

Jairo Santana
Messages: 6
Registered: April 2001

Junior Member

Ben,

Thanks a lot for your help. Yes, I will need to convert the (lat,lon) to LL.
The image header has the UTM zone and some other info about the
image. So, that won't be difficult. All I need to do now is set the
coordinate system and overplot the plane path over the image. If the image
is in LL (UTM), how do you establish a coordinate system to be able
to plot the plane path LL (converted from lat,lon) over the image?

Jairo.

Ben Tupper wrote:

> Jairo Santana wrote:
>
>> I need to plot the path of a plane given by (lat,lon) over a USGS
>> DOQ image. The image is in UTM projection and BIP format.
>> Any code, advice, or suggestion will be very much appreciated.
>>
>> Thanks,
>> Jairo.
>
> Hi,
>
> I have attached a ZIPPED bundle of procedures for converting from LL
> to UTM (meters of false easting/northing). If you know the UTM zone
> for your DOQ image, you should be able to overlay the plane's path on
> the image. Alternatively, you could convert your UTM image coords
> to LL. Then you could use IDL's built in mapping procedures for
> display. I'm not sure if the Map Datum will be important, but it's
> worth paying attention to. I'm not familiar with a BIP format.
>
> Ben
> --
> Ben Tupper
> 248 Lower Round Pond Road
> POB 106
> Bristol, ME 04539
>
> Tel: (207) 563-1048
> Email: PemaquidRiver@tidewater.net
>
> ------------------------------------------------------------ ------------
> Name: geo.zip
> geo.zip Type: Download File (application/x-zip)
> Encoding: base64

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[Message index]

		Re: Plotting data over USGS DOQ images. By: Jairo Santana on Thu, 07 June 2001 08:17
		Re: Plotting data over USGS DOQ images. By: Ben Tupper on Wed, 06 June 2001 20:18
		Re: Plotting data over USGS DOQ images. By: Jairo Santana on Tue, 05 June 2001 16:39
		Re: Plotting data over USGS DOQ images. By: Jairo Santana on Tue, 05 June 2001 14:20
		Re: Plotting data over USGS DOQ images. By: Med Bennett on Tue, 05 June 2001 10:16

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