[mkgmap-dev] question regarding length

Thu Oct 3 12:11:48 BST 2013

Hi Steve,

in mkgmap.jar (RouteArc) we use 
private static int convertMeters(double l) {
		// XXX: really a constant factor?
		// this factor derived by looking at a variety
		// of arcs in an IMG of Berlin; 1/4 of
		// what used to be here
		double factor = 3.28 / 16;
		return (int) (l * factor);
	}

In the display tool we use 
			// length should be in units of 16 feet
			item.addText("length %d (%dm)", len, (int)(len * 16 / 3.25)); 

I guess it should always be either 3.28 or 3.25?
On the other hand, if the length is 
somehow related to  the unit foot, why
do I not see something like 0.3048?

Gerd

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