Adding point data to test Krovak projection

[jachym]

Just adding data, so that Krovak projection can be tested as well. Transformation is values is based on cs2cs (from original Proj4) and they should work. Command line test:

echo 12.806988 49.452262|cs2cs +init=epsg:4326 +to +proj=krovak +lat_0=49.5 +lon_0=24.83333333333333 +alpha=30.28813972222222 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +pm=greenwich +units=m +no_defs +towgs84=570.8,85.7,462.8,4.998,1.587,5.261,3.56

The definition corresponds with czech projection aka EPSG:5514

[calvinmetcalf]

I literally just added an auto test runner, so if you could add an empty commit it'll show us if it passes the tests.

[jachym]

Hi,

the issue was, that if I defined new projection,

      proj4.defs("EPSG:5514", "+proj=krovak +lat_0=49.5 +lon_0=24.83333333333333 +alpha=30.28813972222222 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +pm=greenwich +units=m +no_defs +towgs84=570.8,85.7,462.8,4.998,1.587,5.261,3.56");

And than made instance of this projection, using

    var proj = proj4.Proj("EPSG:5514");

Then, if I wanted to create new instance with the same definition:

    var proj2 = proj4.Proj("EPSG:5514");

it gave different transformation results. Reason for it was, that the proj.datum was redefined with different values. And this set of commits creates tests for it and finally solves it.

[calvinmetcalf]

sweet

[calvinmetcalf]

932ca62