Imagine, digital earth maps now just like real earth. Just look at Google Earth or Microsoft Virtual Earth, satellite photo result can show free for us. It will be nice if we have mobile gadget with GPS, we will always know where are we. Technicaly Map in software world has to be trend begin when GIS needs increase. Some developer confuse with coordinates what is UTM or what is Degree. Same with me, i have problem to build GIS system and I use SVG or XAML to make a map, generated from ArcView or mapinfo. The booth software support any coordinates type, but our client use degrees format to put the location. SVG or XAML are not support using degress, they both just support using coordinates X,Y. So I make the function to convert Degrees to UTM or UTM to Degrees.

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