Comments on: Convert Rijksdriehoekscoördinaten to latitude/longitude

By: Siebe Bosch

Siebe Bosch — Fri, 02 Dec 2011 15:13:53 +0000

A very nice posting indeed!

Does anyone also have code for the conversion the other way around?

Thanks,
Siebe

By: webpatser

webpatser — Fri, 16 Sep 2011 06:55:33 +0000

@Keizer Thanks for the fix. I updated the code in the post.

By: keizer

keizer — Wed, 14 Sep 2011 13:56:30 +0000

by applying the fix the accuracy would be very high

By: keizer

keizer — Wed, 14 Sep 2011 13:55:17 +0000

there’s a bug in the script (calculation of $SomN).
$dX ^ 2 should be pow($dX, 2)

proper code would be:
$SomN = (3235.65389 * $dY) + (- 32.58297 * pow($dX, 2)) + (- 0.2475 *
pow($dY, 2)) + (- 0.84978 * pow($dX, 2) *
$dY) + (- 0.0655 * pow($dY, 3)) + (- 0.01709 *
pow($dX, 2) * pow($dY, 2)) + (- 0.00738 *
$dX) + (0.0053 * pow($dX, 4)) + (- 0.00039 *
pow($dX, 2) * pow($dY, 3)) + (0.00033 * pow($dX, 4) * $dY) + (- 0.00012 * $dX * $dY);

By: webpatser

webpatser — Thu, 09 Sep 2010 19:57:32 +0000

The algorithm is based on the steps written in the wikipedia page. I tested it in real life and was it was accurate enough for my application.

By: Jacob

Jacob — Thu, 09 Sep 2010 15:04:13 +0000

Does the programmer or anybody knows how accurate this function is?

By: Tom

Tom — Wed, 28 Apr 2010 08:29:53 +0000

This is really useful, thanks for posting it!