gpolezero

module gpolezero

Functions

get_arguments()

main()

gpolezero [ option ] outfile

• -F float

  • scale of figure

• -W int

  • width of figure in pixels

• -H int

  • height of figure in pixels

• -M int or str

  • margin around image in pixels

• -g

  • draw grid

• -q int

  • input format

• -p str

  • name of file containing poles

• -z str

  • name of file containing zeros

• -x float float

  • x-axis limits

• -y float float

  • y-axis limits

• -mc str

  • marker color

• -mw float

  • marker size

• -ff str

  • font family

• -fs int

  • font size

• infile str

  • double-type roots

• outfile str

  • figure

The below example draws the poles and zeros of the transfer function:

\[ H(z) = \frac{2z^2 + 3z + 1}{z^2 + 0.8z + 0.5}. \]

echo 2 3 1 | x2x +ad | root_pol -m 2 > data.z
echo 1 0.8 0.5 | x2x +ad | root_pol -m 2 > data.p
gpolezero -p data.p -z data.z out.png

See also

fdrw