scad

OpenSCAD interface

–camera arg camera parameters when exporting png: =translate_x,y,z,rot_x,y,z,dist or =eye_x,y,z,center_x,y,z

a = (10,20,30)
','.join(map(str,a))

'10,20,30'

a = []
if a:
    print("yes")

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export_to

 export_to (model, export_format, w=600, h=300, colorscheme=None,
            translate=None, rot=None, dist=None, eye=None, center=None,
            viewall=True)

---

view

 view (model, w=600, h=300, colorscheme=None, translate=None, rot=None,
       dist=None, eye=None, center=None, viewall=True)

Convert model to image

Lets add simple and fast automatic previews for all models:

We also delete __repr__ so that text representations of models are not saved as part of notebooks. These representations can get quite lengthy especially if we programatically generate models with python as opposed to using OpenSCAD model and import functions.

d = ((cylinder(5,r=10,center=True).right(5) + cylinder(5,r=10,center=True).left(5)).hull()
     - cylinder(40,r=5, center=True).rotate([30,0,0])
     + cylinder(30,r=2,center=True).rotate([0,-20,0]).translate([10,0,0])
     + cube([10,10,10],center=True).translate([-5,0,-5]))
d

Viewing from different directions:

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view_back

 view_back (d, w=600, h=300, colorscheme=None, translate=None, rot=None,
            dist=None, eye=None, center=None, viewall=True)

---

view_front

 view_front (d, w=600, h=300, colorscheme=None, translate=None, rot=None,
             dist=None, eye=None, center=None, viewall=True)

---

view_left

 view_left (d, w=600, h=300, colorscheme=None, translate=None, rot=None,
            dist=None, eye=None, center=None, viewall=True)

---

view_right

 view_right (d, w=600, h=300, colorscheme=None, translate=None, rot=None,
             dist=None, eye=None, center=None, viewall=True)

---

view_bottom

 view_bottom (d, w=600, h=300, colorscheme=None, translate=None, rot=None,
              dist=None, eye=None, center=None, viewall=True)

---

view_top

 view_top (d, w=600, h=300, colorscheme=None, translate=None, rot=None,
           dist=None, eye=None, center=None, viewall=True)

view_bottom(d)

view_top(d)

12/3*2

8.0

---

view_all

 view_all (d)

d

view_all(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(view(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                                  = 3233.8717447916665
Position of the center of gravity (COG) = [-0.39244195  0.01129184 -1.48824022]
Inertia matrix at expressed at the COG  = [ 1.26691235e+05  9.59202307e+01 -1.40417640e+04]
                                          [ 9.59202307e+01  2.56363254e+05 -5.24176883e+02]
                                          [-14041.76401878   -524.17688261 279222.64519674]
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()