Why would would it not evaulate the function?

[static786]

var newXmin = minX + mapXChange;

where the respective values equal: minX = 392362.036001 and mapXChange = -7110.230129734288

alert(newXmin);

gives the alert box saying "392362.036001-7110.230129734288", any reason why it does it not show the evaluated value i.e. 385251.8059?

I tried testing out the code independantly with just them two varoables and it seems to work fine, but in my program it does'nt?

 

[BillyRayPreachersSon]

var newXmin = parseFloat(minX) + parseFloat(mapXChange);

Hope this helps,
Dan

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[BillyRayPreachersSon]

And you'll probably find that you get rounding errors at that level of FP detail, anyway. JS simply doesn't have hugely accurate FP routines.

Dan



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[static786]

cheers for the reply. the solution u provided works, but I use alot of flout numbers throughout the code - will i need to use the parsefloat() method on every float variable?

 

[BillyRayPreachersSon]

Only the ones that are derived from strings or string types (such as input box values).

Dan



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[static786]

okay, thats great. thanx.