Latest Contributions by LubicaCverckova2

Thank you Randy. It worked!  ... View more

Hi Chris, I need to do similar conversion of California II State Plane in US Survey feet to geographic coordinates in decimal degrees. I am not totally comfortable with python but need to have it in python. I updated the parameters in California values. But not getting desired output. Here is the updated part of the script your wrote in California values: A = 20925604.47                                   ## major radius of GRS 1980 ellipsoid, feet Ec = 0.0818191910435                         ## eccentricity of GRD 1980 ellipsoid Ec2 = Ec * Ec                                        ## eccentricity squared AngRad = 0.017453292519943299      ## number of radians in a degree Pi4 = 3.141592653582 / 4                     ## Pi / 4 P1 = 38.33333333 * AngRad                ## latitude of first standard parallel P2 = 39.83333333 * AngRad                ## latitude of second standard parallel P0 = 37.66666667 * AngRad                ## latitude of origin M0 = -122 * AngRad                             ## central meridian X0 = 6561666.66666667                      ## False easting of central meridian, map units And here is the snapshot of Data Source: Unsure where the problem is. If it is due to no parameter for False northing or...? Basically, the sample CA State Plane II x,y: 7079975.52661,2184310.50409 should give me: 39.1457869, -120.1722625 and if I run your code with above updated parameters, I am getting: 43.642324406, -120.048031426. Any ideas how to fix that would be great!!! ... View more