def thermal_pad(pad, size, paste_fraction, max_paste_size):
paste_x = size[0] * dmath.sqrt(paste_fraction)
paste_y = size[1] * dmath.sqrt(paste_fraction)
n_x = dmath.ceil(paste_x / max_paste_size)
n_y = dmath.ceil(paste_y / max_paste_size)
paste_pad = pscad.rounded_square([paste_y / n_y, paste_x / n_x], D("0.05"), center=True)
return pscad.union() + (
pscad.row(pscad.rotate(90) + pscad.row(paste_pad, size[1] / n_y, n_y, center=True),
size[0] / n_x, n_x, center=True),
pscad.nopaste() + pad
)
def indent_pad(size, indent):
return pscad.union() + (
pscad.translate([-size[0] / 2, -size[1] / 2]) + (
pscad.square([size[0], size[1] - indent]),
pscad.right(indent) +
pscad.square([size[0] - indent, size[1]]),
pscad.down(size[1] - indent) +
pscad.rotate(45) + pscad.square(indent * dmath.sqrt(D(2)))
)
)
def paste_fraction(pad, fraction):
try:
fraction = dmath.sqrt(fraction)
except:
try:
fraction = (fraction[0],fraction[1])
except:
fraction = (fraction[0],1)
return union() + (
scale(fraction) + pad,
nopaste() + pad
),
def test_sqrt():
for x in range(0, 10):
assert dmath.sqrt(x) == math.sqrt(x)
assert grad(dmath.sqrt)(x) == approx(1 / (2 * math.sqrt(x)))
def paste_fraction(pad, fraction):
return union() + (
scale(dmath.sqrt(fraction)) + pad,
nopaste() + pad
),