Simple Bar Plots

This example shows how to use FigureGenerator directly for basic bar charts.

Vertical Bar Chart

from psPlotKit.data_plotter.fig_generator import FigureGenerator

xdata = ["t1", "f2", "z3"]
bar_start = [-10, -25, -30]
bar_length = [20, 40, 50]

fig = FigureGenerator()
fig.init_figure()

for i, x in enumerate(xdata):
    fig.plot_bar(i, bar_length[i], bottom=bar_start[i])

fig.set_axis_ticklabels(xticklabels=xdata, yticks=[-30, 0, 30])
fig.save_fig("vertical_bars")
fig.show()

Horizontal Bar Chart

Set vertical=False to create horizontal bars:

fig_h = FigureGenerator()
fig_h.init_figure()

for i, x in enumerate(xdata):
    fig_h.plot_bar(i, bar_length[i], bottom=bar_start[i], vertical=False)

fig_h.set_axis_ticklabels(yticklabels=xdata, xticks=[-30, 0, 30])
fig_h.save_fig("horizontal_bars")
fig_h.show()

Key Parameters

Parameter	Default	Description
x_pos	—	Position along the category axis
x_value	—	Bar height (vertical) or width (horizontal)
bottom	None	Starting position of the bar
width	0.2	Bar thickness
color	auto	Fill color (auto-cycles if not set)
edgecolor	"black"	Border color
hatch	None	Fill pattern (e.g., "//", "xx")
label	None	Legend label
vertical	True	Orientation