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cosplay: Touhou/Shiki Eiki #7

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aniva wants to merge 11 commits from touhou/shiki-eiki into main
pull from: touhou/shiki-eiki
merge into: aniva:main
Conversation 1 Commits 11 Files Changed 11 +323 -1
5 changed files with 323 additions and 1 deletions
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10
nhf/touhou/shiki_eiki/__init__.py
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@ -2,12 +2,16 @@ from dataclasses import dataclass, field
import cadquery as Cq
from nhf.build import Model, TargetKind, target, assembly, submodel
import nhf.touhou.shiki_eiki.rod as MR
import nhf.touhou.shiki_eiki.crown as MC
import nhf.touhou.shiki_eiki.epaulette as ME
import nhf.utils
@dataclass
class Parameters(Model):
rod: MR.Rod = field(default_factory=lambda: MR.Rod())
crown: MC.Crown = field(default_factory=lambda: MC.Crown())
epaulette: ME.Epaulette = field(default_factory=lambda: ME.Epaulette())
def __post_init__(self):
super().__init__(name="shiki-eiki")
@ -15,6 +19,12 @@ class Parameters(Model):
@submodel(name="rod")
def submodel_rod(self) -> Model:
return self.rod
@submodel(name="crown")
def submodel_crown(self) -> Model:
return self.crown
@submodel(name="epaulette")
def submodel_epaulette(self) -> Model:
return self.epaulette
if __name__ == '__main__':

294
nhf/touhou/shiki_eiki/crown.py Normal file
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@ -0,0 +1,294 @@
import math
from dataclasses import dataclass, field
import cadquery as Cq
from nhf import Material, Role
from nhf.build import Model, target, assembly
import nhf.utils
@dataclass
class Crown(Model):
facets: int = 5
# Lower circumference
base_circ: float = 570.0
# Upper circumference
tilt_circ: float = 670.0
height: float = 120.0
margin: float = 10.0
def __post_init__(self):
super().__init__(name="crown")
assert self.tilt_circ > self.base_circ
@property
def facet_width_lower(self):
return self.base_circ / self.facets
@property
def facet_width_upper(self):
return self.tilt_circ / self.facets
@target(name="side")
def profile_base(self) -> Cq.Sketch:
# Generate the pentagonal shape
dx_l = self.facet_width_lower
dx_u = self.facet_width_upper
dy = self.height
return (
Cq.Sketch()
.polygon([
(dx_l/2, 0),
(dx_u/2, dy/2),
(0, dy),
(-dx_u/2, dy/2),
(-dx_l/2, 0),
])
)
@target(name="front")
def profile_front(self) -> Cq.Sketch:
dx_l = self.facet_width_lower
dx_u = self.facet_width_upper
dy = self.height
window_length = dy / 5
window_height = self.margin / 2
window = (
Cq.Sketch()
.rect(window_length, window_height)
)
window_p1 = Cq.Location.from2d(
dx_u/2 - self.margin - window_length * 0.4,
dy/2 + self.margin,
math.degrees(math.atan2(dy/2, -dx_u/2)),
)
window_p2 = Cq.Location.from2d(
dx_l/2 - self.margin + window_length * 0.15,
window_length/2 + self.margin,
math.degrees(math.atan2(dy/2, (dx_u-dx_l)/2)),
)
# Carve the scale
z = dy * 1/64 # "Pen" Thickness
scale_pan_x = dx_l / 2 * 0.6
scale_pan_y = dy / 2 * 0.7
pan_dx = dx_l * 1/4
pan_dy = dy * 1/16
scale_pan = (
Cq.Sketch()
.arc(
(- pan_dx/2, pan_dy),
(0, 0),
(+ pan_dx/2, pan_dy),
)
.segment(
(+pan_dx/2, pan_dy),
(+pan_dx/2 - z, pan_dy),
)
.arc(
(-pan_dx/2 + z, pan_dy),
(0, z),
(+pan_dx/2 - z, pan_dy),
)
.segment(
(-pan_dx/2, pan_dy),
(-pan_dx/2 + z, pan_dy),
)
.assemble()
)
loc_scale_pan = Cq.Location.from2d(scale_pan_x, scale_pan_y)
loc_scale_pan2 = Cq.Location.from2d(-scale_pan_x, scale_pan_y)
scale_base_y = dy / 2 * 0.36
scale_base_x = dx_l / 10
assert scale_base_y < scale_pan_y
assert scale_base_x < scale_pan_x
scale_body = (
Cq.Sketch()
.arc(
(scale_pan_x, scale_pan_y),
(0, scale_base_y),
(-scale_pan_x, scale_pan_y),
)
.segment(
(-scale_pan_x, scale_pan_y),
(-scale_pan_x+z, scale_pan_y+z),
)
.arc(
(scale_pan_x - z, scale_pan_y+z),
(0, scale_base_y + z),
(-scale_pan_x + z, scale_pan_y+z),
)
.segment(
(scale_pan_x, scale_pan_y),
(scale_pan_x-z, scale_pan_y+z),
)
.assemble()
.polygon([
(scale_base_x, scale_base_y + z/2),
(scale_base_x, self.margin),
(scale_base_x-z, self.margin),
(scale_base_x-z, scale_base_y-z),
(-scale_base_x+z, scale_base_y-z),
(-scale_base_x+z, self.margin),
(-scale_base_x, self.margin),
(-scale_base_x, scale_base_y + z/2),
], mode='a')
)
# Needle
needle_y_top = dy - self.margin
needle_y_mid = dy * 0.7
needle_dx = scale_base_x * 2
needle = (
Cq.Sketch()
.segment(
(z, needle_y_mid),
(z, scale_base_y),
)
.segment(
(z, scale_base_y),
(-z, scale_base_y),
)
.segment(
(-z, scale_base_y),
(-z, needle_y_mid),
)
.bezier([
(0, needle_y_top),
(0, (needle_y_top + needle_y_mid)/2),
(needle_dx, (needle_y_top + needle_y_mid)/2),
(z, needle_y_mid),
])
.bezier([
(0, needle_y_top),
(0, (needle_y_top + needle_y_mid)/2),
(-needle_dx, (needle_y_top + needle_y_mid)/2),
(-z, needle_y_mid),
])
.assemble()
)
z2 = z * 2
needle_inner = (
Cq.Sketch()
.segment(
(z2, needle_y_mid - z2),
(-z2, needle_y_mid - z2)
)
.segment(
(z2, needle_y_mid - z2),
(z2, needle_y_mid + z2),
)
.segment(
(-z2, needle_y_mid - z2),
(-z2, needle_y_mid + z2),
)
.bezier([
(0, needle_y_top - z2),
(0, (needle_y_top + needle_y_mid)/2),
(needle_dx-z2*2, (needle_y_top + needle_y_mid)/2),
(z2, needle_y_mid + z2),
])
.bezier([
(0, needle_y_top - z2),
(0, (needle_y_top + needle_y_mid)/2),
(-needle_dx+z2*2, (needle_y_top + needle_y_mid)/2),
(-z2, needle_y_mid + z2),
])
.assemble()
)
return (
self.profile_base()
.boolean(window.moved(window_p1), mode='s')
.boolean(window.moved(window_p1.flip_x()), mode='s')
.boolean(window.moved(window_p2), mode='s')
.boolean(window.moved(window_p2.flip_x()), mode='s')
.boolean(scale_pan.moved(loc_scale_pan), mode='s')
.boolean(scale_pan.moved(loc_scale_pan2), mode='s')
.boolean(scale_body, mode='s')
.boolean(needle, mode='s')
.boolean(needle_inner, mode='a')
.clean()
)
@target(name="side-guard")
def profile_side_guard(self) -> Cq.Sketch:
dx = self.facet_width_lower / 2
dy = self.height
# Main control points
p_mid = Cq.Location.from2d(0, 0.5 * dy)
p_mid_v = Cq.Location.from2d(10/57 * dx, 0)
p_top1 = Cq.Location.from2d(0.408 * dx, 5/24 * dy)
p_top1_v = Cq.Location.from2d(0.13 * dx, 0)
p_top2 = Cq.Location.from2d(0.737 * dx, 0.255 * dy)
p_top2_c1 = p_top2 * Cq.Location.from2d(-0.105 * dx, 0.033 * dy)
p_top2_c2 = p_top2 * Cq.Location.from2d(-0.053 * dx, -0.09 * dy)
p_top3 = Cq.Location.from2d(0.929 * dx, 0.145 * dy)
p_top3_v = Cq.Location.from2d(0.066 * dx, 0.033 * dy)
p_top4 = Cq.Location.from2d(0.85 * dx, 0.374 * dy)
p_top4_v = Cq.Location.from2d(-0.053 * dx, 0.008 * dy)
p_top5 = Cq.Location.from2d(0.54 * dx, 0.349 * dy)
p_top5_c1 = p_top5 * Cq.Location.from2d(0.103 * dx, 0.017 * dy)
p_top5_c2 = p_top5 * Cq.Location.from2d(0.158 * dx, 0.034 * dy)
p_base_c = Cq.Location.from2d(1.245 * dx, 0.55 * dy)
p_base = Cq.Location.from2d(dx, 0)
bezier_groups = [
[
p_base,
p_base_c,
p_top5_c2,
p_top5,
],
[
p_top5,
p_top5_c1,
p_top4 * p_top4_v,
p_top4,
],
[
p_top4,
p_top4 * p_top4_v.inverse.scale(4),
p_top3 * p_top3_v,
p_top3,
],
[
p_top3,
p_top3 * p_top3_v.inverse,
p_top2_c2,
p_top2,
],
[
p_top2,
p_top2_c1,
p_top1 * p_top1_v,
p_top1,
],
[
p_top1,
p_top1 * p_top1_v.inverse,
p_mid * p_mid_v,
p_mid,
],
]
sketch = (
Cq.Sketch()
.segment(
p_base.to2d_pos(),
p_base.flip_x().to2d_pos(),
)
)
for bezier_group in bezier_groups:
sketch = (
sketch
.bezier([p.to2d_pos() for p in bezier_group])
.bezier([p.flip_x().to2d_pos() for p in bezier_group])
)
return sketch.assemble()

12
nhf/touhou/shiki_eiki/epaulette.py Normal file
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@ -0,0 +1,12 @@
import math
from dataclasses import dataclass, field
import cadquery as Cq
from nhf import Material, Role
from nhf.build import Model, target, assembly
import nhf.utils
@dataclass
class Epaulette(Model):
def __post_init__(self):
super().__init__(name="epaulette")

1
nhf/touhou/shiki_eiki/rod.py
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@ -24,6 +24,7 @@ class Rod(Model):
fac_window_footer_top: float = 0.59
def __post_init__(self):
super().__init__(name="rod")
self.loc_core = Cq.Location.from2d(self.length - self.length_tip, 0)
assert self.length_tip * 2 < self.length
#assert self.fac_bar_top + self.fac_window_tsumi_top < 1

7
nhf/utils.py
View File

@ -53,6 +53,11 @@ def is2d(self: Cq.Location) -> bool:
return z == 0 and rx == 0 and ry == 0
Cq.Location.is2d = is2d
def scale(self: Cq.Location, fac: float) -> bool:
(x, y, z), (rx, ry, rz) = self.toTuple()
return Cq.Location(x*fac, y*fac, z*fac, rx, ry, rz)
Cq.Location.scale = scale
def to2d(self: Cq.Location) -> Tuple[Tuple[float, float], float]:
"""
Returns position and angle
@ -91,7 +96,7 @@ Cq.Location.with_angle_2d = with_angle_2d
def flip_x(self: Cq.Location) -> Cq.Location:
(x, y), a = self.to2d()
return Cq.Location.from2d(-x, y, 90 - a)
return Cq.Location.from2d(-x, y, 180 - a)
Cq.Location.flip_x = flip_x
def flip_y(self: Cq.Location) -> Cq.Location:
(x, y), a = self.to2d()