There were already some discussions about using geographic coordinates and area/distance measurements on this list and I don't want to repeat everything again. Just in short the possibilities: * use a coordinate system that allows area measurements (eg. UTM, Lambert Azimuthal Equal Area, etc) * convert the mouse coordinates with javascript into a system like above (you need to get the formulas, for Europe I could provide you with them) * use an estimation for distance/area on sphere/ellipsoid (dunno where to find formulas) * use AJAX (XMLHttp) functions to request the coordinates for mouse clicks from the server converted into an appropriate system (using proj4 functions, etc)
I always go for solution 1. armin > > Hi > > my map is using digital degrees, and the measure function doesnt seem to > return any usefull numbers. > > I have played around with the calcFact var in measure.js and get > reasonable > looking results for var calcFact = .01; however i would like it to be > accurate. > > (i am using p.mapper 1.1 ) > > thanks > -- DSL-Aktion wegen großer Nachfrage bis 28.2.2006 verlängert: GMX DSL-Flatrate 1 Jahr kostenlos* http://www.gmx.net/de/go/dsl
