How accurate do you need it?. We use a basic function to determine distance
based upon the earth's radius. This IS NOT accurate, but, does work for our
purposes. This functions gets the distance by passing in a vector feature
function ShowMeasureDistance(feature) {
var dist = feature.geometry.getLength();
dist = 6378137.0*(22/7)*dist / 180.0
alert("Distance: " + dist.toFixed(0) + "
m");
mlayer.removeFeatures(mlayer.features);
}
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Gérald Quintana
Sent: 19 March 2008 09:45 AM
To: users@openlayers.org
Subject: [OpenLayers-Users] Measuring tool
Hi,
Once I saw an example of Control to measure the length of a path
(rubber), but I can't find it anymore. Where is it?
I managed to do my own using the DrawFeature control and the
Curve.getLength() method but I miss the conversion factor to get the
distance in meters or kilometers, how can I do it?
Thanks for your help,
Gérald
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