🎬 Add Create a GIF Movie with updating textures

[tkoyama010]

Overview

Add Create a GIF Movie with updating textures. Point is using plotter.clear() .

resolves #1528

Details

# Create a plotter object
plotter = pv.Plotter(notebook=False, off_screen=True)

# Open a gif
plotter.open_gif("texture.gif")

pts = curvsurf.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]:

    # create an image using numpy,
    z = np.sin(r + phase)
    pts[:, -1] = z.ravel()

    # Creating a custom RGB image
    zz = A * np.exp(-0.5 * ((xx / b) ** 2.0 + (yy / b) ** 2.0))
    hue = norm(zz.ravel()) * 0.5 * (1.0 + np.sin(phase))
    colors = (cmap(hue)[:, 0:3] * 255.0).astype(np.uint8)
    image = colors.reshape((xx.shape[0], xx.shape[1], 3), order="F")

    # Convert 3D numpy array to texture
    tex = pv.numpy_to_texture(image)

    plotter.add_mesh(curvsurf, smooth_shading=True, texture=tex)
    plotter.update_coordinates(pts, render=False)

    # must update normals when smooth shading is enabled
    plotter.mesh.compute_normals(cell_normals=False, inplace=True)
    plotter.render()
    plotter.write_frame()
    plotter.clear()

# Closes and finalizes movie
plotter.close()

[codecov]

Codecov Report

Merging #1544 (e92d1e9) into main (c49bd31) will increase coverage by 0.41%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1544      +/-   ##
==========================================
+ Coverage   90.13%   90.55%   +0.41%     
==========================================
  Files          68       68              
  Lines       12879    13502     +623     
==========================================
+ Hits        11609    12227     +618     
- Misses       1270     1275       +5     

[akaszynski]

LGTM. One nitpick, but otherwise it's good to go.