API for lenstest package

lenstest.lenstest Module

Utility routines for lens testing.

Documentation and examples are available at <https://lenstest.readthedocs.io>

`sagitta`(RoC, conic, X, Y[, A, D])	Calculate sagitta for conic surface at points X, Y.
`XY_test_points`(D[, N, on_grid])	Generate test points for lens test.
`knife_polygon`(s, phi, ds)	Create a polygon for a rotated knife edge.
`circle_polygon`(R[, X0, Y0])	Create a polygon for a circle.
`draw_circle`(R[, X0, Y0, color])	Draw a circle.
`draw_lens`(D, RoC[, middle])	Draw and fill a biconvex lens shape.
`draw_mirror`(D, RoC[, vertex])	Draw one face of a mirror.
`conic_string`(conic)	Create string that describes a conic value.

Generate ronchigrams for lens testing.

Documentation and examples are available at <https://lenstest.readthedocs.io>

`gram`(D, RoC, lpm, z_offset[, conic, phi, N, ...])	Create points that pass through a Ronchi ruling.
`plot_gram`(D, RoC, lpm, z_offset[, conic, ...])	Plot cross-sections on projection screen at a distance of RoC.
`plot_ruling_and_screen`(D, RoC, lpm, z_offset)	Plot cross-sections at Ronchi ruling and projection screen.
`plot_lens_layout`(D, f, z_offset)	Plot the Ronchi Lens Test Layout (4f system).
`plot_mirror_layout`(D, RoC, z_offset)	Plot the Ronchi Mirror Test Layout.

Generate Foucault Knife Edge images (Foucaugrams) for mirror/lens testing.

Documentation and examples are available at <https://lenstest.readthedocs.io>

`gram`(D, RoC, x_offset, z_offset[, conic, ...])	Create points that miss the knife edge.
`plot_gram`(D, RoC, x_offset, z_offset[, ...])	Plot the Foucault knife edge image.
`plot_knife_and_screen`(D, RoC, x_offset, z_offset)	Plot the Foucault knife edge image.
`plot_lens_layout`(D, RoC, x_offset, z_offset)	Plot the Foucault knife edge experiment.
`plot_mirror_layout`(D, RoC, x_offset, z_offset)	Plot the Foucault knife edge experiment.