Orthographic changes for revisions 11368:11369

Shown for documentation purpose, but this code can not be ported as-is. We will need to rewrite from the Snyder's book as explained in here.

Command line:

svn diff --extensions "--unified --ignore-space-change --ignore-all-space --ignore-eol-style" -r11368:11369 https://svn.osgeo.org/geotools/trunk/modules/library/referencing/src/main/java/org/geotools/referencing/operation/projection/Orthographic.java
Revision 11368Revision 11369
        throws ParameterNotFoundException
{
    final Collection descriptors = PARAMETERS.descriptors();
    final double latitudeOfOrigin = Math.abs(
        doubleValue(Provider.LATITUDE_OF_ORIGIN, parameters));
    if (isSpherical(parameters)) {
        // Polar case.
        if (Math.abs(latitudeOfOrigin - Math.PI/2) < EPS) {
            return new OrthographicPolar(parameters, descriptors);
        }
        // Equatorial case.
 
        throws ParameterNotFoundException
{
    final Collection descriptors = PARAMETERS.descriptors();

    //values here are in degrees (the standard units for this parameter)
    final double latitudeOfOrigin = Math.abs(
        doubleValue(Provider.LATITUDE_OF_ORIGIN, parameters));

    if (isSpherical(parameters)) {
        // Polar case.
        if (Math.abs(latitudeOfOrigin - 90.0) < EPS) {
            return new OrthographicPolar(parameters, descriptors);
        }
        // Equatorial case.