[mapguide-users] Calculating a Euclidean Distance in Javascript

[nclayton]

I'm trying to reproduce the function being called in php to measure the
distance between the two points of the measure tool in javascript so that I
can display the current distance while a user is picking a second point on
the map. So far the formula I have tried is not producing the same result as
the result of
$srsMap->MeasureEuclideanDistance($x1,$y1,$x2,$y2) in measure.php

the formula I am trying is:
distance = sqrt(abs(x2 - x1)^2 + abs(y2-y1)^2)

then to convert to miles:
miles = distance * 0.000621371192

Thanks in advance for any input.
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