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This cylindrical projection was developed in 1745 by César-François Cassini de Thury for the survey of France. It is occasionally called Cassini-Soldner since the latter provided the more accurate mathematical analysis that led to the development of the ellipsoidal formulae. The projection is neither conformal nor equal-area, and behaves as a compromise between the two end-members. The distortion is zero along the central meridian. It is best suited for mapping regions of north-south extent. The central meridian, each meridian 90° away, and equator are straight lines; all other meridians and parallels are complex curves.
clon0/lat0/scale or Clon0/lat0/width
The projection is set with c or C. The projection center is set by lon0/lat0, and the figure size is set with scale or width.
import pygmt fig = pygmt.Figure() # Use the ISO code for Madagascar (MG) and pad it by 2 degrees (+R2) fig.coast(projection="C47/-19/12c", region="MG+R2", frame="afg", land="gray", borders=1) fig.show()
Total running time of the script: ( 0 minutes 0.707 seconds)