""" .. _gif_movie_example: Create a GIF Movie ~~~~~~~~~~~~~~~~~~ Generate a moving gif from an active plotter. .. note:: Use ``lighting=False`` to reduce the size of the color space to avoid "jittery" GIFs, especially for the scalar bar. """ import numpy as np import pyvista as pv x = np.arange(-10, 10, 0.5) y = np.arange(-10, 10, 0.5) x, y = np.meshgrid(x, y) r = np.sqrt(x**2 + y**2) z = np.sin(r) # Create and structured surface grid = pv.StructuredGrid(x, y, z) # Create a plotter object and set the scalars to the Z height plotter = pv.Plotter(notebook=False, off_screen=True) plotter.add_mesh( grid, scalars=z.ravel(), lighting=False, show_edges=True, scalar_bar_args={"title": "Height"}, clim=[-1, 1], ) # Open a gif plotter.open_gif("wave.gif") pts = grid.points.copy() # Update Z and write a frame for each updated position nframe = 15 for phase in np.linspace(0, 2 * np.pi, nframe + 1)[:nframe]: z = np.sin(r + phase) pts[:, -1] = z.ravel() plotter.update_coordinates(pts, render=False) plotter.update_scalars(z.ravel(), render=False) # Write a frame. This triggers a render. plotter.write_frame() # Closes and finalizes movie plotter.close() # %% # .. raw:: html # # # #

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