Plotting with oplot

import ograph.ofig as of
import ograph.oplot as op
import matplotlib.pyplot as plt
import numpy as np

Create an Axes3D

of.fig3()
op.annotate("Title", "x", "y", "z")

plt.show()

Contour plots Use plot_wireframe for wireframe plots, and plot_surface for surface plots.

def himmelblau(x, y):
    return (x ** 2 + y - 11) ** 2 + (x + y ** 2 - 7) ** 2
of.fig3()
op.surface(himmelblau, (-5,5), (-5,5), alpha=0.5)
plt.show()

def himmelblau(x, y):
    return (x ** 2 + y - 11) ** 2 + (x + y ** 2 - 7) ** 2
of.fig3()
op.wireframe(himmelblau, (-5,5), (-5,5), alpha=0.5)
plt.show()

of.fig3()
op.contour(himmelblau, (-5,5), (-5,5), levels=100, alpha=0.5)
plt.show()

from scipy.spatial import ConvexHull, distance #type: ignore
fig = plt.figure()
ax = plt.axes()
op.chull(op.unit_square)

fig = plt.figure()
ax = plt.axes(projection="3d")
op.chull(op.unit_cube)

transform = np.array([
    [2,0,0],
    [0,1,0],
    [0,3,1]
])

source = op.unit_cube.T

new_unit = transform.dot(source).T
# np.matmul(transform, source)
fig = plt.figure()
ax = plt.axes(projection="3d")
ax.view_init(10, 120)
ax.set_zlabel("z", fontname = 'PT Serif')
op.annotate("", "x", "y", "z")
ax.set_xticks([])
ax.set_yticks([])
ax.set_zticks([])
ax.set_xlim3d(-0.5, 1.5)
ax.set_zlim3d(0, 1.5)
for side in ['top','right','bottom','left']:
    ax.spines[side].set_visible(False)
ax.tick_params(axis='both',which='both',labelbottom=False,bottom=False,left=False)


op.chull(op.unit_cube)
op.chull(new_unit)

Plot an arrow with oplot.arrow.

of.fig3()
op.arrow((0,0,0),
         (1,1,1))
plt.show()

from ograph.ofunc import himmelblau

of.fig2()
op.contour(himmelblau, (-6, 6), (-6, 6), cmap="Spectral", colorbar=False)
plt.show()

of.fig3()
op.surface(himmelblau, (-5, 5), (-5, 5), cmap="Spectral", colorbar=False)
plt.show()