Isobar plots of spatial pressure data

Hi all,

Assume that we have knowledge of pressure values at certain irregular grid points in 3D, i.e.

p_i(x_i, y_i, z_i) i = 1,(1),N

where N denotes the number of grid points.

Usually N = 7e5.

Is it possible to create an isobar plot using matplotlib ?

How can I achieve it ?