192 lines
7.1 KiB
Python
192 lines
7.1 KiB
Python
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#!/usr/bin/python
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from pcbnew import *
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class TouchSliderWizard(FootprintWizardPlugin):
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def __init__(self):
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FootprintWizardPlugin.__init__(self)
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self.name = "Touch Slider"
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self.description = "Capacitive Touch Slider Wizard"
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self.parameters = {
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"Pads":
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{"*steps":4, # not internal (measurement) units preceded by "*"
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"*bands":2,
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"width": FromMM(10),
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"length": FromMM(50),
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"clearance": FromMM(1)
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}
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}
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self.ClearErrors()
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# build a rectangular pad
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def smdRectPad(self,module,size,pos,name):
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pad = D_PAD(module)
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pad.SetSize(size)
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pad.SetShape(PAD_RECT)
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pad.SetAttribute(PAD_SMD)
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pad.SetLayerMask(PAD_SMD_DEFAULT_LAYERS)
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pad.SetPos0(pos)
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pad.SetPosition(pos)
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pad.SetPadName(name)
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return pad
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def smdTrianglePad(self,module,size,pos,name,up_down=1,left_right=0):
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pad = D_PAD(module)
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pad.SetSize(wxSize(size[0],size[1]))
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pad.SetShape(PAD_TRAPEZOID)
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pad.SetAttribute(PAD_CONN)
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pad.SetLayerMask(PAD_CONN_DEFAULT_LAYERS)
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pad.SetPos0(pos)
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pad.SetPosition(pos)
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pad.SetPadName(name)
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pad.SetDelta(wxSize(left_right*size[1],up_down*size[0]))
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return pad
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# This method checks the parameters provided to wizard and set errors
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def CheckParameters(self):
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p = self.parameters
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steps = p["Pads"]["*steps"]
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errors = ""
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if (steps<1):
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self.parameter_errors["Pads"]["*steps"]="Must be positive"
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errors +="Pads/*steps has wrong value"
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p["Pads"]["*steps"] = int(pads) # make sure it stays as int (default is float)
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bands = p["Pads"]["*bands"]
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if (bands<1):
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self.parameter_errors["Pads"]["*bands"]="Must be positive"
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errors +="Pads/*bands has wrong value"
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p["Pads"]["*bands"] = int(bands) # make sure it stays as int (default is float)
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touch_width = p["Pads"]["width"]
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touch_length = p["Pads"]["length"]
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touch_clearance = p["Pads"]["clearance"]
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return errors
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# The start pad is made of a rectangular pad plus a couple of
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# triangular pads facing tips on the middle/right of the first
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# rectangular pad
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def AddStartPad(self,position,touch_width,step_length,clearance,name):
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module = self.module
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step_length = step_length - clearance
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size_pad = wxSize(step_length/2.0+(step_length/3),touch_width)
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pad = self.smdRectPad(module,size_pad,position-wxPoint(step_length/6,0),name)
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module.Add(pad)
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size_pad = wxSize(step_length/2.0,touch_width)
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tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2),
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position+wxPoint(size_pad[0]/2,size_pad[1]/4),
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name)
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module.Add(tp)
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tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2),
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position+wxPoint(size_pad[0]/2,-size_pad[1]/4),
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name
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,-1)
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module.Add(tp)
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# compound a "start pad" shape plus a triangle on the left, pointing to
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# the previous touch-pad
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def AddMiddlePad(self,position,touch_width,step_length,clearance,name):
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module = self.module
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step_length = step_length - clearance
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size_pad = wxSize(step_length/2.0,touch_width)
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size_pad = wxSize(step_length/2.0,touch_width)
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pad = self.smdRectPad(module,size_pad,position,name)
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module.Add(pad)
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tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2),
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position+wxPoint(size_pad[0]/2,size_pad[1]/4),
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name)
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module.Add(tp)
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tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2),
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position+wxPoint(size_pad[0]/2,-size_pad[1]/4),
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name
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,-1)
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module.Add(tp)
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tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2),
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position+wxPoint(-size_pad[0],0),
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name,
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0,
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-1)
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module.Add(tp)
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def AddFinalPad(self,position,touch_width,step_length,clearance,name):
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module = self.module
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step_length = step_length - clearance
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size_pad = wxSize(step_length/2.0,touch_width)
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pad = self.smdRectPad(module,
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wxSize(size_pad[0]+(step_length/3),size_pad[1]),
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position+wxPoint(step_length/6,0),
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name)
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module.Add(pad)
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tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2),
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position+wxPoint(-size_pad[0],0),
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name,
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0,
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-1)
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module.Add(tp)
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def AddStrip(self,pos,steps,touch_width,step_length,touch_clearance):
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self.AddStartPad(pos,touch_width,step_length,touch_clearance,"1")
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for n in range(2,steps):
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pos = pos + wxPoint(step_length,0)
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self.AddMiddlePad(pos,touch_width,step_length,touch_clearance,str(n))
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pos = pos + wxPoint(step_length,0)
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self.AddFinalPad(pos,touch_width,step_length,touch_clearance,str(steps))
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# build the footprint from parameters
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def BuildFootprint(self):
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module = MODULE(None) # create a new module
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self.module = module
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p = self.parameters
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steps = int(p["Pads"]["*steps"])
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bands = int(p["Pads"]["*bands"])
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touch_width = p["Pads"]["width"]
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touch_length = p["Pads"]["length"]
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touch_clearance = p["Pads"]["clearance"]
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step_length = float(touch_length) / float(steps)
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module.SetReference("TS"+str(steps)) # give it a reference name
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module.m_Reference.SetPos0(wxPointMM(-1,-2))
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module.m_Reference.SetPosition(wxPointMM(-1,-2))
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# starting pad
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pos = wxPointMM(0,0)
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band_width = touch_width/bands
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for b in range(bands):
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self.AddStrip(pos,steps,band_width,step_length,touch_clearance)
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pos+=wxPoint(0,band_width)
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module.SetLibRef("S"+str(steps))
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# create our footprint wizard
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touch_slider_wizard = TouchSliderWizard()
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# register it into pcbnew
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touch_slider_wizard.register()
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