Simple surface

Example showing a surface mesh

/opt/hostedtoolcache/Python/3.12.12/x64/lib/python3.12/site-packages/pygfx/objects/_ruler.py:400: RuntimeWarning: divide by zero encountered in divide
  screen_full = (ndc_full[:, :2] / ndc_full[:, 3:4]) * half_canvas_size
/opt/hostedtoolcache/Python/3.12.12/x64/lib/python3.12/site-packages/pygfx/objects/_ruler.py:400: RuntimeWarning: invalid value encountered in divide
  screen_full = (ndc_full[:, :2] / ndc_full[:, 3:4]) * half_canvas_size
/opt/hostedtoolcache/Python/3.12.12/x64/lib/python3.12/site-packages/pygfx/objects/_ruler.py:412: RuntimeWarning: invalid value encountered in divide
  screen_sel = (ndc_sel[:, :2] / ndc_sel[:, 3:4]) * half_canvas_size
/home/runner/work/fastplotlib/fastplotlib/fastplotlib/graphics/features/_base.py:18: UserWarning: casting float64 array to float32
  warn(f"casting {array.dtype} array to float32")

# test_example = true

import fastplotlib as fpl
import numpy as np
import pygfx as gfx


figure = fpl.Figure(size=(700, 560), cameras="3d", controller_types="orbit")


t = np.linspace(0, 6, 100).astype(np.float32)
x = np.sin(t)
y = np.cos(t * 2)
z = (x.reshape(1, -1) * x.reshape(-1, 1)) * 50  # 100x100

surface = figure[0, 0].add_surface(z, cmap="bwr")

# figure[0, 0].axes.grids.xy.visible = True
figure[0, 0].camera.show_object(surface.world_object, (-2, 2, -3), up=(0, 0, 1))
figure.show()


# NOTE: fpl.loop.run() should not be used for interactive sessions
# See the "JupyterLab and IPython" section in the user guide
if __name__ == "__main__":
    print(__doc__)
    fpl.loop.run()