scad

OpenSCAD interface

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export_to

 export_to (model, export_format, w=600, h=300, colorscheme=None)

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to_img

 to_img (model, w=600, h=300, colorscheme=None)

Convert model to image

Lets add simple and fast automatic previews for all models:

d = (cylinder(5,r=10).right(5) + cylinder(5,r=10).left(5)).hull()
d

Colorschemes

You can configure the colorscheme you like by setting scad.colorscheme to appropritate string:

fig, axs = plt.subplots(5,2, figsize=(12,24)) # 2,5
axs = axs.flatten()

for ax, cs in zip(axs, colorschemes):
    ax.imshow(to_img(d, 300, 300, cs))
    ax.axis("off")
    ax.set_title(cs)

Exporting to STL

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export_to_stl

 export_to_stl (model)

stl = export_to_stl(d)

volume, cog, inertia = stl.get_mass_properties()
print("Volume                                  = {0}".format(volume))
print("Position of the center of gravity (COG) = {0}".format(cog))
print("Inertia matrix at expressed at the COG  = {0}".format(inertia[0,:]))
print("                                          {0}".format(inertia[1,:]))
print("                                          {0}".format(inertia[2,:]))
print("Your mesh is closed: {0}".format(stl.is_closed(exact=True)))

Volume                                  = 2553.8624674479165
Position of the center of gravity (COG) = [-1.59327703e-07  2.98739444e-09  2.50000080e+00]
Inertia matrix at expressed at the COG  = [7.68085765e+04 9.11458332e-04 1.54622072e-04]
                                          [9.11458332e-04 1.57231110e+05 3.60870367e-04]
                                          [1.54622072e-04 3.60870367e-04 2.23398600e+05]
Your mesh is closed: True

figure = pyplot.figure()
axes = figure.add_subplot(projection='3d')

axes.add_collection3d(mplot3d.art3d.Poly3DCollection(stl.vectors))

scale = stl.points.flatten()
axes.auto_scale_xyz(scale, scale, scale)

pyplot.show()