From d981e03ee07c4486ec161fa84e15da711109243e Mon Sep 17 00:00:00 2001 From: Elena ``of Valhalla'' Grandi Date: Sat, 16 Jul 2022 16:03:32 +0200 Subject: Telescoping box: generate templates for a box made of cardboard and labels --- telescoping_box.py | 339 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 339 insertions(+) create mode 100755 telescoping_box.py diff --git a/telescoping_box.py b/telescoping_box.py new file mode 100755 index 0000000..c7baf73 --- /dev/null +++ b/telescoping_box.py @@ -0,0 +1,339 @@ +#!/usr/bin/env python3 + +import hazwaz + +import svgwrite + +try: + import argcomplete # type: ignore +except ImportError: + argcomplete = False + +mm = 3.7795276 + +LINE_STYLE = { + 'stroke': svgwrite.utils.rgb(127, 127, 127), + 'stroke_width': 0.5, + 'fill': 'none' + } + + +class Structure(object): + def __init__(self, x, y, z, flap=15): + """ + """ + self.x = x * mm + self.y = y * mm + self.z = z * mm + self.f = flap * mm + self.t = self.y / 3 # tab lenght + + self.full_width = self.f * 2 + self.z * 2 + self.x + self.full_height = self.f * 2 + self.z * 2 + self.y + + def add_to(self, drw, canvas_x=210 * mm, canvas_y=297 * mm): + grp = drw.g() + grp.add(drw.rect( + (self.z + self.f, self.z + self.f), + (self.x, self.y), + id='base', + ** LINE_STYLE, + )) + grp.add(drw.rect( + (self.f, (self.z + self.f)), + (self.z, self.y), + id='left', + ** LINE_STYLE, + )) + grp.add(drw.rect( + ((self.z + self.f + self.x), (self.z + self.f)), + (self.z, self.y), + id='right', + ** LINE_STYLE, + )) + grp.add(drw.rect( + ((self.z + self.f), self.f), + (self.x, self.z), + id='top', + ** LINE_STYLE, + )) + grp.add(drw.rect( + ((self.z + self.f), (self.f + self.z + self.y)), + (self.x, self.z), + id='bottom', + ** LINE_STYLE, + )) + grp.add(drw.rect( + (0, (self.f + self.z)), + (self.f, self.y), + id='left_flap', + ** LINE_STYLE, + )) + grp.add(drw.rect( + ((self.f + self.z * 2 + self.x), (self.f + self.z)), + (self.f, self.y), + id='right_flap', + ** LINE_STYLE, + )) + grp.add(drw.rect( + ((self.f + self.z), 0), + (self.x, self.f), + id='top_flap', + ** LINE_STYLE, + )) + grp.add(drw.rect( + ((self.f + self.z), (self.f + self.z * 2 + self.y)), + (self.x, self.f), + id='bottom_flap', + ** LINE_STYLE, + )) + grp.add(drw.polygon( + ( + (self.f + self.z, self.f), + (self.f + self.z, self.f + self.z), + (self.f + self.z - self.t, self.f + self.z - 2 * mm), + (self.f + self.z - self.t, self.f + 4 * mm) + ), + id='top_left_tab', + ** LINE_STYLE, + )) + grp.add(drw.polygon( + ( + (self.f + self.z + self.x, self.f), + (self.f + self.z + self.x + self.t, self.f + 4 * mm), + (self.f + self.z + self.x + self.t, self.f + self.z - 2 * mm), + (self.f + self.z + self.x, self.f + self.z), + ), + id='top_right_tab', + ** LINE_STYLE, + )) + grp.add(drw.polygon( + ( + (self.f + self.z, self.f + self.y + self.z), + (self.f + self.z, self.f + self.z + self.y + self.z), + (self.f + self.z - self.t, self.f + self.z - 4 * mm + + self.y + self.z), + (self.f + self.z - self.t, self.f + 2 * mm + self.y + + self.z) + ), + id='bottom_left_tab', + ** LINE_STYLE, + )) + grp.add(drw.polygon( + ( + (self.f + self.z + self.x, self.f + self.y + self.z), + (self.f + self.z + self.x + self.t, self.f + 4 * mm + + self.y + self.z), + (self.f + self.z + self.x + self.t, self.f + self.z - 2 + * mm + self.y + self.z), + (self.f + self.z + self.x, self.f + self.z + self.y + + self.z), + ), + id='bottom_left_tab', + ** LINE_STYLE, + )) + grp.translate( + (canvas_x - self.full_width) / 2, + (canvas_y - self.full_height) / 2 + ) + drw.add(grp) + + +class Cardboard(object): + def __init__(self, x, y, z, thickness=1): + """ + """ + self.x = x * mm + self.y = y * mm + self.z = z * mm + self.th = thickness * mm + + @property + def full_width(self): + return max(self.x + self.z * 2, self.x * 2 + self.th * 4) + + @property + def full_height(self): + return self.y + self.z + + def _get_grp(self, drw): + grp = drw.g() + grp.add(drw.rect( + (self.z, 0), + (self.x, self.y), + id='base_base', + ** LINE_STYLE, + )) + grp.add(drw.rect( + (0, 0), + (self.z, self.y), + id='base_left_side', + ** LINE_STYLE, + )) + grp.add(drw.rect( + (self.z + self.x, 0), + (self.z, self.y), + id='base_right_side', + ** LINE_STYLE, + )) + grp.add(drw.rect( + (0, self.y), + (self.x + self.th * 2, self.z), + id='base_top_side', + ** LINE_STYLE, + )) + grp.add(drw.rect( + (self.x + self.th * 2, self.y), + (self.x + self.th * 2, self.z), + id='base_bottom_side', + ** LINE_STYLE, + )) + return grp + + def add_to(self, drw, canvas_x=210 * mm, canvas_y=297 * mm): + grp = self._get_grp(drw) + grp.translate( + (canvas_x - self.full_width) / 2, + (canvas_y / 2 - self.full_height) + ) + drw.add(grp) + + self.x = self.x + self.th * 4 + self.y = self.y + self.th * 4 + self.z = self.z + self.th + + grp = self._get_grp(drw) + grp.translate( + (canvas_x - self.full_width) / 2, + canvas_y / 2 + ) + drw.add(grp) + + +class Base(Structure): + def __init__(self, x, y, z, thickness=1, flap=15): + """ + """ + super().__init__( + x + thickness * 2, + y + thickness * 2, + z + thickness, + flap=flap, + ) + + +class Lid(Structure): + def __init__(self, x, y, z, thickness=1, flap=15): + """ + """ + super().__init__( + x + thickness * 6, + y + thickness * 6, + z + thickness * 2, + flap=flap, + ) + + +class Command(hazwaz.MainCommand): + """ + Generate SVGs templates to build a telescoping box. + """ + def add_arguments(self, parser): + parser.add_argument( + "size_x", + help="inner width of the box", + type=int, + ) + parser.add_argument( + "size_y", + help="inner height of the box", + type=int, + ) + parser.add_argument( + "size_z", + help="inner depth of the box", + type=int, + ) + parser.add_argument( + "-o", "--base_output", + help="base destination filename", + default="telescoping_box", + ) + parser.add_argument( + "--paper_width", + help="paper width in millimiters", + type=int, + default=210, + ) + parser.add_argument( + "--paper_height", + help="paper height in millimiters", + type=int, + default=297, + ) + + def main(self): + size_spec = "{}×{}×{}".format( + str(self.args.size_x), + str(self.args.size_y), + str(self.args.size_z), + ) + paper_size = ( + "{}mm".format(self.args.paper_width), + "{}mm".format(self.args.paper_height), + ) + + # lid + dest = svgwrite.Drawing( + filename="{}-{}-lid.svg".format( + self.args.base_output, + size_spec, + ), + size=paper_size, + profile='full', + ) + struc = Lid(self.args.size_x, self.args.size_y, self.args.size_z) + struc.add_to( + dest, + canvas_x=self.args.paper_width * mm, + canvas_y=self.args.paper_height * mm, + ) + dest.save() + + # base + dest = svgwrite.Drawing( + filename="{}-{}-base.svg".format( + self.args.base_output, + size_spec, + ), + size=paper_size, + profile='full', + ) + struc = Base(self.args.size_x, self.args.size_y, self.args.size_z) + struc.add_to( + dest, + canvas_x=self.args.paper_width * mm, + canvas_y=self.args.paper_height * mm, + ) + dest.save() + + # cardboard + dest = svgwrite.Drawing( + filename="{}-{}-cardboard.svg".format( + self.args.base_output, + size_spec, + ), + size=paper_size, + profile='full', + ) + struc = Cardboard(self.args.size_x, self.args.size_y, self.args.size_z) + struc.add_to( + dest, + canvas_x=self.args.paper_width * mm, + canvas_y=self.args.paper_height * mm, + ) + dest.save() + + +if __name__ == '__main__': + Command().run() -- cgit v1.2.3