From 544c40a0d371a94bde56cfe7067e1352643bd78e Mon Sep 17 00:00:00 2001 From: Florian Festi Date: Mon, 6 Feb 2017 22:35:26 +0100 Subject: [PATCH] Add Chest Hinge edge classes --- boxes/__init__.py | 2 + boxes/edges.py | 135 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 137 insertions(+) diff --git a/boxes/__init__.py b/boxes/__init__.py index c520b99..846403c 100755 --- a/boxes/__init__.py +++ b/boxes/__init__.py @@ -380,6 +380,8 @@ class Boxes: # Hinges edges.HingeSettings(self.thickness, True, **self.edgesettings.get("Hinge", {})).edgeObjects(self) + edges.ChestHingeSettings(self.thickness, True, + **self.edgesettings.get("ChestHinge", {})).edgeObjects(self) # Sliding Lid edges.LidSettings(self.thickness, True, **self.edgesettings.get("Lid", {})).edgeObjects(self) diff --git a/boxes/edges.py b/boxes/edges.py index 9faa71d..851f810 100644 --- a/boxes/edges.py +++ b/boxes/edges.py @@ -1051,6 +1051,141 @@ class HingePin(BaseEdge): self.edge(l - plen - glen) getattr(self, self.settings.style, self.outset)(True) +############################################################################# +#### Chest Hinge +############################################################################# + +class ChestHingeSettings(Settings): + """Settings for Chest Hinges +Values: + +* relative (in multiples of thickness) + + * pin_height : 2.0 : radius of the disc rotating in the hinge + * hinge_strength : 1.0 : thickness of the arc holding the pin in place +""" + + relative_params = { + "pin_height" : 2.0, + "hinge_strength" : 1.0, + } + + def pinheight(self): + return ((0.9*self.pin_height)**2-self.thickness**2)**0.5 + + def edgeObjects(self, boxes, chars="oOpPqQ", add=True): + edges = [ + ChestHinge(boxes, self), + ChestHinge(boxes, self, 1), + ChestHingeTop(boxes, self), + ChestHingeTop(boxes, self, 1), + ChestHingePin(boxes, self), + ChestHingeFront(boxes, self), + ] + return self._edgeObjects(edges, boxes, chars, add) + +class ChestHinge(BaseEdge): + + "Edge with chest hinge" + + char = "o" + + def __init__(self, boxes, settings=None, reversed=False): + super(ChestHinge, self).__init__(boxes, settings) + + self.reversed = reversed + self.char = "oO"[reversed] + self.description = self.description + (' (start)', ' (end)')[reversed] + + def __call__(self, l, **kw): + t = self.settings.thickness + p = self.settings.pin_height + s = self.settings.hinge_strength + pinh = self.settings.pinheight() + if self.reversed: + self.hole(l+t, 0, p) + self.rectangularHole(l+0.5*t, -0.5*pinh, t, pinh) + else: + self.hole(-t, -s-p, p) + self.rectangularHole(-0.5*t, -s-p-0.5*pinh, t, pinh) + + poly = (0, -180, t, (270, p+s), 0, -90, l+t-p-s) + if self.reversed: + poly = reversed(poly) + self.polyline(*poly) + + def margin(self): + if self.reversed: + return 0*(self.settings.pin_height+self.settings.hinge_strength) + else: + return 1*(self.settings.pin_height+self.settings.hinge_strength) + + def startwidth(self): + if self.reversed: + return self.settings.pin_height+self.settings.hinge_strength + return 0 + + def endwidth(self): + if self.reversed: + return 0 + return self.settings.pin_height+self.settings.hinge_strength + +class ChestHingeTop(ChestHinge): + + "Edge above a chest hinge" + + char = "p" + + def __init__(self, boxes, settings=None, reversed=False): + super(ChestHingeTop, self).__init__(boxes, settings) + + self.reversed = reversed + self.char = "oO"[reversed] + self.description = self.description + (' (start)', ' (end)')[reversed] + + def __call__(self, l, **kw): + t = self.settings.thickness + p = self.settings.pin_height + s = self.settings.hinge_strength + play = 0.1 * self.settings.thickness + poly = (0, -180, t, -90, play, -90, 0, (-90, p+s+play), 0, 90, l+t-p-s-play) + if self.reversed: + poly = reversed(poly) + self.polyline(*poly) + + def margin(self): + if self.reversed: + return 0. + else: + return 1*(self.settings.pin_height+self.settings.hinge_strength) + +class ChestHingePin(BaseEdge): + + "Edge with pins for an chest hinge" + + char = "q" + + def __call__(self, l, **kw): + t = self.settings.thickness + p = self.settings.pin_height + s = self.settings.hinge_strength + pinh = self.settings.pinheight() + poly = [0, -90, s+p-pinh, -90, t, 90, pinh, 90,] + poly += [l+2*t,] + list(reversed(poly)) + self.polyline(*poly) + + def margin(self): + return (self.settings.pin_height+self.settings.hinge_strength) + + +class ChestHingeFront(BaseEdge): + + "Edge opposing a chest hinge" + + char = "Q" + + def startwidth(self): + return self.settings.pin_height+self.settings.hinge_strength ############################################################################# #### Slide-on lid