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mightyscape-1.1-deprecated/extensions/fablabchemnitz/fablabchemnitz_tool_covers.py

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2020-08-07 20:18:20 +02:00
#!/usr/bin/env python3
#
# (c) 2020 Yoichi Tanibayashi
#
import inkex
from lxml import etree
import math
class Point(object):
def __init__(self, x, y):
self.x = x
self.y = y
def distance(self, c):
return math.sqrt((c.x - self.x) ** 2 + (c.y - self.y) ** 2)
def rotate(self, rad):
new_x = math.cos(rad) * self.x - math.sin(rad) * self.y
new_y = math.sin(rad) * self.x + math.cos(rad) * self.y
self.x = new_x
self.y = new_y
return self
def mirror(self):
self.x = -self.x
return self
class Vpoint(Point):
'''
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A point with (x, y) coordinates and direction (rad)
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rad: Direction (true up: 0, right: math.pi / 2, ...)
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'''
def __init__(self, x, y, rad=0):
super(Vpoint, self).__init__(x, y)
self.rad = rad
def rotate(self, rad):
super(Vpoint, self).rotate(rad)
self.rad += rad
return self
def mirror(self):
super(Vpoint, self).mirror()
self.rad = -self.rad
return self
class SvgObj(object):
DEF_COLOR = '#00FF00'
DEF_STROKE_WIDTH = 0.2
DEF_STROKE_DASHARRAY = 'none'
def __init__(self, parent):
self.parent = parent
self.type = None
self.attr = {}
def draw(self, color=DEF_COLOR,
stroke_width=DEF_STROKE_WIDTH,
stroke_dasharray=DEF_STROKE_DASHARRAY):
self.attr['style'] = str(inkex.Style({
'stroke': str(color),
'stroke-width': str(stroke_width),
'stroke-dasharray': str(stroke_dasharray),
'fill': 'none'}))
return etree.SubElement(self.parent,
inkex.addNS(self.type, 'svg'),
self.attr)
class SvgCircle(SvgObj):
DEF_COLOR = '#FF0000'
DEF_STROKE_WIDTH = 0.2
DEF_STROKE_DASHARRAY = 'none'
def __init__(self, parent, r):
super(SvgCircle, self).__init__(parent)
self.r = r
self.type = 'circle'
def draw(self, point,
color=DEF_COLOR,
stroke_width=DEF_STROKE_WIDTH,
stroke_dasharray=DEF_STROKE_DASHARRAY):
self.attr['cx'] = str(point.x)
self.attr['cy'] = str(point.y)
self.attr['r'] = str(self.r)
return super(SvgCircle, self).draw(color,
stroke_width, stroke_dasharray)
class SvgPath(SvgObj):
DEF_COLOR = '#0000FF'
DEF_STROKE_WIDTH = 0.2
DEF_STROKE_DASHARRAY = 'none'
def __init__(self, parent, points):
super(SvgPath, self).__init__(parent)
self.points = points
self.type = 'path'
def create_svg_d(self, origin_vpoint, points):
'''
to be override
This is sample code.
'''
svg_d = ''
for i, p in enumerate(points):
(x1, y1) = (p.x + origin_vpoint.x, p.y + origin_vpoint.y)
if i == 0:
svg_d = 'M %f,%f' % (x1, y1)
else:
svg_d += ' L %f,%f' % (x1, y1)
return svg_d
def rotate(self, rad):
for p in self.points:
p.rotate(rad)
return self
def mirror(self):
for p in self.points:
p.mirror()
return self
def draw(self, origin,
color=DEF_COLOR, stroke_width=DEF_STROKE_WIDTH,
stroke_dasharray=DEF_STROKE_DASHARRAY):
self.rotate(origin.rad)
svg_d = self.create_svg_d(origin, self.points)
# inkex.errormsg('svg_d=%s' % svg_d)
# inkex.errormsg('svg_d=%s' % str(Path( svg_d )))
self.attr['d'] = svg_d
return super(SvgPath, self).draw(color, stroke_width, stroke_dasharray)
class SvgLine(SvgPath):
# exactly same as SvgPath
pass
class SvgPolygon(SvgPath):
def create_svg_d(self, origin, points):
svg_d = super(SvgPolygon, self).create_svg_d(origin, points)
svg_d += ' Z'
return svg_d
class SvgPart1Outline(SvgPolygon):
def __init__(self, parent, points, bw_bf):
super(SvgPart1Outline, self).__init__(parent, points)
self.bw_bf = bw_bf
def create_svg_d(self, origin, points, bw_bf=1):
for i, p in enumerate(points):
(x1, y1) = (p.x + origin.x, p.y + origin.y)
if i == 0:
d = 'M %f,%f' % (x1, y1)
elif i == 7:
d += ' L %f,%f' % (x1, y1)
x2 = x1
y2 = y1 + self.bw_bf
elif i == 8:
d += ' C %f,%f %f,%f %f,%f' % (x2, y2, x1, y2, x1, y1)
else:
d += ' L %f,%f' % (x1, y1)
d += ' Z'
return d
class SvgNeedleHole(SvgPolygon):
def __init__(self, parent, w, h, tf):
'''
w: width
h: height
tf: tilt factor
'''
self.w = w
self.h = h
self.tf = tf
self.gen_points(self.w, self.h, self.tf)
super(SvgNeedleHole, self).__init__(parent, self.points)
def gen_points(self, w, h, tf):
self.points = []
self.points.append(Point(-w / 2, h * tf))
self.points.append(Point( w / 2, h * (1 - tf)))
self.points.append(Point( w / 2, -h * tf))
self.points.append(Point(-w / 2, -h * (1 - tf)))
class Part1(object):
def __init__(self, parent,
w1, w2, h1, h2, bw, bl, bf, dia1, d1, d2,
needle_w, needle_h, needle_tf, needle_corner_rotation):
self.parent = parent
self.w1 = w1
self.w2 = w2
self.h1 = h1
self.h2 = h2
self.bw = bw
self.bl = bl
self.bf = bf
self.dia1 = dia1
self.d1 = d1
self.d2 = d2
self.needle_w = needle_w
self.needle_h = needle_h
self.needle_tf = needle_tf
self.needle_corner_rotation = needle_corner_rotation
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# Group Creation
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attr = {inkex.addNS('label', 'inkscape'): 'Part1'}
self.g = etree.SubElement(self.parent, 'g', attr)
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# drawing
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self.points_outline = self.create_points_outline()
self.svg_outline = SvgPart1Outline(self.g, self.points_outline,
(self.bw * self.bf))
self.svg_hole = SvgCircle(self.g, self.dia1 / 2)
self.vpoints_needle = self.create_needle_vpoints()
self.svgs_needle_hole = []
for v in self.vpoints_needle:
svg_nh = SvgNeedleHole(self.g,
self.needle_w,
self.needle_h,
self.needle_tf)
self.svgs_needle_hole.append((svg_nh, v))
def create_points_outline(self):
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#Generate the coordinates of the outer frame
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points = []
(x0, y0) = (-(self.w2 / 2), 0)
(x, y) = (x0, y0 + self.h1 + self.h2)
points.append(Point(x, y))
y = y0 + self.h1
points.append(Point(x, y))
x = -(self.w1 / 2)
y = y0
points.append(Point(x, y))
x = self.w1 / 2
points.append(Point(x, y))
x = self.w2 / 2
y += self.h1
points.append(Point(x, y))
y += self.h2
points.append(Point(x, y))
x = self.bw / 2
points.append(Point(x, y))
y += self.bl - self.bw / 2
points.append(Point(x, y))
x = -(self.bw / 2)
points.append(Point(x, y))
y = y0 + self.h1 + self.h2
points.append(Point(x, y))
return points
def create_needle_vpoints(self):
'''
針穴の点と方向を生成
'''
rad1 = math.atan((self.w2 - self.w1) / (2 * self.h1))
rad1a = (math.pi - rad1) / 2
a1 = self.d1 / math.tan(rad1a)
rad2 = (math.pi / 2) - rad1
rad2a = (math.pi - rad2) / 2
a2 = self.d1 / math.tan(rad2a)
#
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# summit
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#
vpoints1 = []
for i, p in enumerate(self.points_outline):
(nx, ny) = (p.x, p.y)
if i == 0:
nx += self.d1
ny -= self.d1 * 1.5
vpoints1.append(Vpoint(nx, ny, 0))
if i == 1:
nx += self.d1
ny += a1
vpoints1.append(Vpoint(nx, ny, rad1))
if i == 2:
nx += a2
ny += self.d1
vpoints1.append(Vpoint(nx, ny, math.pi / 2))
if i == 3:
nx -= a2
ny += self.d1
vpoints1.append(Vpoint(nx, ny, (math.pi / 2) + rad2))
if i == 4:
nx -= self.d1
ny += a1
vpoints1.append(Vpoint(nx, ny, math.pi))
if i == 5:
nx -= self.d1
ny -= self.d1 * 1.5
vpoints1.append(Vpoint(nx, ny, math.pi))
if i > 5:
break
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# Generate a point that completes a vertex
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vpoints2 = []
for i in range(len(vpoints1)-1):
d = vpoints1[i].distance(vpoints1[i+1])
n = int(abs(round(d / self.d2)))
for p in self.split_vpoints(vpoints1[i], vpoints1[i+1], n):
vpoints2.append(p)
vpoints2.insert(0, vpoints1[0])
return vpoints2
def split_vpoints(self, v1, v2, n):
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#v1, v2 Generate a list by dividing the space between the two into n pieces
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if n == 0:
return [v1]
(dx, dy) = ((v2.x - v1.x) / n, (v2.y - v1.y) / n)
v = []
for i in range(n):
v.append(Vpoint(v1.x + dx * (i + 1),
v1.y + dy * (i + 1),
v1.rad))
if self.needle_corner_rotation:
v[-1].rad = (v1.rad + v2.rad) / 2
return v
def draw(self, origin):
origin_base = Vpoint(origin.x + self.w2 / 2,
origin.y,
origin.rad)
self.svg_outline.draw(origin_base, color='#0000FF')
x = origin.x + self.w2 / 2
y = origin.y + self.h1 + self.h2 + self.bl - self.bw / 2
origin_hole = Point(x, y)
self.svg_hole.draw(origin_hole, color='#FF0000')
for (svg_nh, p) in self.svgs_needle_hole:
origin_nh = Vpoint(origin.x + p.x + self.w2 / 2,
origin.y + p.y,
p.rad)
svg_nh.draw(origin_nh, color='#FF0000')
class Part2(object):
def __init__(self, parent, part1, dia2):
self.parent = parent
self.part1 = part1
self.dia2 = dia2
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# Group Creation
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attr = {inkex.addNS('label', 'inkscape'): 'Part2'}
self.g = etree.SubElement(self.parent, 'g', attr)
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# outer frame > Mirroring the points_outline in Part1, and use the first six points.
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self.points_outline = []
for i in range(6):
self.points_outline.append(self.part1.points_outline[i].mirror())
self.svg_outline = SvgPolygon(self.g, self.points_outline)
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# clasp
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self.svg_hole = SvgCircle(self.g, self.dia2 / 2)
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# pinhole -> Mirroring the vpoints_needle in Part1
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self.svgs_needle_hole = []
for v in self.part1.vpoints_needle:
v.mirror()
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# Mirror also SvgNeedleHole
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svg_nh = SvgNeedleHole(self.g,
self.part1.needle_w,
self.part1.needle_h,
self.part1.needle_tf)
svg_nh.mirror()
self.svgs_needle_hole.append((svg_nh, v))
def draw(self, origin):
origin_base = Vpoint(origin.x + self.part1.w2 / 2,
origin.y, origin.rad)
self.svg_outline.draw(origin_base, color='#0000FF')
x = origin.x + self.part1.w2 / 2
y = origin.y + self.part1.h1 + self.part1.h2
y -= (self.svg_hole.r + self.part1.d1)
origin_hole = Vpoint(x, y, origin.rad)
self.svg_hole.draw(origin_hole, color='#FF0000')
for (svg_nh, p) in self.svgs_needle_hole:
origin_nh = Vpoint(origin.x + p.x + self.part1.w2 / 2,
origin.y + p.y,
p.rad)
svg_nh.draw(origin_nh, color='#FF0000')
class PliersCover(inkex.Effect):
DEF_OFFSET_X = 20
DEF_OFFSET_Y = 20
def __init__(self):
inkex.Effect.__init__(self)
self.arg_parser.add_argument("--tabs")
self.arg_parser.add_argument("--w1", type=float)
self.arg_parser.add_argument("--w2", type=float)
self.arg_parser.add_argument("--h1", type=float)
self.arg_parser.add_argument("--h2", type=float)
self.arg_parser.add_argument("--bw", type=float)
self.arg_parser.add_argument("--bl", type=float)
self.arg_parser.add_argument("--bf", type=float)
self.arg_parser.add_argument("--dia1", type=float)
self.arg_parser.add_argument("--dia2", type=float)
self.arg_parser.add_argument("--d1", type=float)
self.arg_parser.add_argument("--d2", type=float)
self.arg_parser.add_argument("--needle_w", type=float)
self.arg_parser.add_argument("--needle_h", type=float)
self.arg_parser.add_argument("--needle_tf", type=float)
self.arg_parser.add_argument("--needle_corner_rotation", type=inkex.Boolean, default=True)
def effect(self):
# inkex.errormsg('view_center=%s' % str(self.view_center))
# inkex.errormsg('selected=%s' % str(self.selected))
# parameters
opt = self.options
#
# error check
#
if opt.w1 >= opt.w2:
msg = "Error: w1(%d) > w2(%d) !" % (opt.w1, opt.w2)
inkex.errormsg(msg)
return
if opt.dia1 >= opt.bw:
msg = "Error: dia1(%d) >= bw(%d) !" % (opt.dia1, opt.bw)
inkex.errormsg(msg)
return
#
# draw
#
origin_vpoint = Vpoint(self.DEF_OFFSET_X, self.DEF_OFFSET_Y)
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# Group Creation
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attr = {inkex.addNS('label', 'inkscape'): 'PliersCover'}
self.g = etree.SubElement(self.svg.get_current_layer(), 'g', attr)
part1 = Part1(self.g,
opt.w1, opt.w2, opt.h1, opt.h2,
opt.bw, opt.bl, opt.bf, opt.dia1,
opt.d1, opt.d2,
opt.needle_w, opt.needle_h, opt.needle_tf,
opt.needle_corner_rotation)
part1.draw(origin_vpoint)
origin_vpoint.x += opt.w2 + 10
part2 = Part2(self.g, part1, opt.dia2)
part2.draw(origin_vpoint)
if __name__ == '__main__':
PliersCover().run()