lcc project string 参数

https://proj.org/operations/projections/lcc.html

Required¶
+lat_1=<value>&#182;
First standard parallel.

Defaults to 0.0.

Optional&#182;
+lon_0=<value>&#182;
Longitude of projection center.

Defaults to 0.0.

+lat_0=<value>&#182;
Latitude of projection center.

Defaults to 0.0.

+lat_2=<value>&#182;
Second standard parallel.

Defaults to 0.0.

+ellps=<value>&#182;
The name of a built-in ellipsoid definition.

See Ellipsoids for more information, or execute proj -le for a list of built-in ellipsoid names.

Defaults to “GRS80”.

+R=<value>&#182;
Radius of the sphere, given in meters. If used in conjunction with +ellps, +R takes precedence.

See Ellipsoid size parameters for more information.

+x_0=<value>&#182;
False easting.

Defaults to 0.0.

+y_0=<value>&#182;
False northing.

Defaults to 0.0.

+k_0=<value>&#182;
This parameter can represent two different values depending on the form of the projection. In LCC 1SP it determines the scale factor at natural origin. In LCC 2SP Michigan it determines the ellipsoid scale factor.

Defaults to 1.0.