# bodeplot LaTeX package to plot Bode, Nichols, and Nyquist diagrams. Inspired by the `bodegraph` package. Limitation: Phase plots from TF commands are wrapped between 0 and 360 degrees. Added functionality: - New `\BodeZPK` and `\BodeTF` commands to generate Bode plots of any transfer function given either poles, zeros, gain, and delay, or numerator and denominator coefficients and delay - Support for unstable poles and zeros. - Support for complex poles and zeros. - Support for general stable and unstable second order transfer functions. - Support for both `gnuplot` (default) and `pgfplots` (package option `pgf`). - Support for linear and asymptotic approximation of magnitude and phase plots of any transfer function given poles, zeros, and gain. Main Bode/Nyquist/Nichols commands: Given Zeros, Poles, Gain, and Delay (Bode plots support asymptotic and linear approximation for systems without delays): - `\BodeZPK[object1/type1/{options1},object2/type2/{options2},...]{z/{zeros},p/{poles},k/gain,d/delay}{min-frequency}{max-frequency}` - `\NicholsZPK[plot/{options},axes/{options}]{z/{zeros},p/{poles},k/gain,d/delay}{min-frequency}{max-frequency}` - `\NyquistZPK[plot/{options},axes/{options}]{z/{zeros},p/{poles},k/gain,d/delay}{min-frequency}{max-frequency}` Given Numerator and denominator coefficients and delay (does not support approximation yet): - `\BodeTF[object1/type1/{options1},object2/type2/{options2},...]{num/{coeff},den/{coeff},d/delay}{min-frequency}{max-frequency}` - `\NicholsTF[plot/{options},axes/{options}]{num/{coeff},den/{coeff},d/delay}` - `\NyquistTF[plot/{options},axes/{options}]{num/{coeff},den/{coeff},d/delay}` Other new environments and associated commands: - `BodePlot` environment - `\addBodeZPKPlots[{approximation1/{plot-options1}},{approximation2/{plot-options2}},...]{plot-type (phase or magnitude)}{z/{zeros},p/{poles},k/gain,d/delay}` - `\addBodeTFPlot[plot-options]{plot-type (phase or magnitude)}{num/{coeff},den/{coeff},d/delay}` - `\addBodeComponentPlot[plot-options]{basic_component_plot_command}` - Basic component plot commands: ***(append `Lin` to get linear approximation and `Asymp` to get asymptotic approximation)*** ***(change `Pole` to `Zero` to get inverse plots)*** ***(change `Mag` to `Ph` to get phase plots)*** - `\MagK{a}` - Pure gain, G(s) = a. - `\MagPole{a}{b}` - Single pole at s = a+bi, G(s) = 1/(s - a-bi). - `\MagCSPoles{z}{w}` - Cannonical Second order system, G(s) = 1/(s^2 + 2zws + w^2). - `\MagSOPoles{a}{b}` - Second Order system, G(s) = 1/(s^2 + as + b). - `\MagDel{T}` - Pure delay, G(s) = exp(-Ts) (does not admit asymptotic approximation). - `NicholsChart` environment - `\addNicholsZPKChart[plot-options]{z/{zeros},p/{poles},k/gain,d/delay}` - `\addNicholsTFChart[plot-options]{num/{coeff},den/{coeff},d/delay}` - `NyquistPlot` environment - `\addNyquistZPKPlot[plot-options]{z/{zeros},p/{poles},k/gain,d/delay}` - `\addNyquistTFPlot[plot-options]{num/{coeff},den/{coeff},d/delay}`