gds_fdtd.plotting

gds_fdtd simulation toolbox.

Plotting helpers for the canonical SMatrix. matplotlib is imported lazily so headless / minimal installs never pay for it.

Functions

component_outlines(component[, axis, buffer])	Device-geometry outlines for overlay on a field plot (see plot_field).
plot_component(component[, spec, ax, savefig])	Standard geometry view: device polygons, ports, bounds, simulation region.
plot_field(mag2[, x, y, ax, scale, ...])	Plot a 2-D field-intensity map (|E|²) in linear or dB scale.
plot_mode(mode[, field, ax, savefig])	Plot a waveguide mode's transverse field on its cross-section.
plot_monitor_planes(solver[, savefig])	Show where a solver's field-monitor planes sit in the simulation domain.
plot_permittivity(component[, dx, ...])	Cross-section of the rasterized refractive-index (√ε) the solver sees.
plot_smatrix(sm[, kind, ax, paths])	Plot S-matrix paths versus wavelength.
plot_tech_stack(tech[, wavelength_um, ax, ...])	Vertical cross-section of the technology's layer stack.
port_plane_outlines(component, spec[, axis])	Port mode-plane cross-sections for field-map overlays.
rdbu_colors(n)	n distinguishable colors sampled from RdBu, skipping the pale center.
smatrix_summary(sm[, wavelength_um, atol])	Human-readable figures of merit for an SMatrix at one wavelength.