Re: [OpenMap Users] Floats Vs. Doubles

MessageHi

I didn't see an answer to this question. Apologies if I have missed.

Why are floats used instead of doubles?

Regards,

Nicholas
  ----- Original Message -----
  From: Martin Chapman
  To: openmap-users@bbn.com
  Sent: Wednesday, December 03, 2003 4:55 PM
  Subject: [OpenMap Users] Floats Vs. Doubles

  Don,

  Why did the architects of OpenMap choose to use floats versus doubles to store point data? Sometimes I have a precision problem when plotting geometry on the map because my source data is double value and the coordinates get truncated. This is a problem when dealing with high resolution satellite imagery that requires sub-meter accuracy, which is nine decimal places I think. Do you know how many decimals a float can go to? Is there a way to get around this problem?

  Thanks,

  Martin Chapman
  Cell 303-885-1936
  Office 303-660-3933 x226
  mchapman@sanz.com
  http://www.sanz.com

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