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'''
Created on 07-Jun-2015
@author: deepa
'''
from bolt import Bolt
from nut import Nut
from OCC.BRepPrimAPI import BRepPrimAPI_MakeSphere
from ModelUtils import getGpPt
class NutBoltArray():
'''
gDir
+---------------------------->
|
|
| P origin
| +-------+---------------+
| | | |
pDir | | | End distance |
| | v |
| | X X |
| | |
| | |
| | |
v | |
| Gauge distance |
| X-------X |
| + |
| | |
| | Pitch |
| | |
| v |
| X X+----> +
| Edge distance
| |
| |
| |
+-----------------------+
Nut Bolt Placement
'''
def __init__(self,boltPlaceObj,nut,bolt,gap):
self.origin = None
self.gaugeDir = None
self.pitchDir = None
self.boltDir = None
self.initBoltPlaceParams(boltPlaceObj)
self.bolt = bolt
self.nut = nut
self.gap = gap
self.bolts = []
self.nuts = []
self.initialiseNutBolts()
self.positions = []
#self.calculatePositions()
self.models = []
def initialiseNutBolts(self):
'''
Initializing the Nut and Bolt
'''
b = self.bolt
n = self.nut
for i in range(self.row * self.col):
self.bolts.append(Bolt(b.R,b.T, b.H, b.r))
self.nuts.append(Nut(n.R, n.T,n.H, n.r1))
def initBoltPlaceParams(self,boltPlaceObj):
self.pitch = boltPlaceObj['Bolt']['pitch']
self.gauge = boltPlaceObj['Bolt']['gauge']
#self.gauge = 30
self.edge = boltPlaceObj['Bolt']['edge']
self.end = boltPlaceObj['Bolt']['enddist']
self.row = boltPlaceObj['Bolt']['numofrow']
self.col = boltPlaceObj['Bolt']['numofcol']
def calculatePositions(self):
'''
Calculates the exact position for nuts and bolts.
'''
self.positions = []
for rw in range(self.row):
for col in range(self.col):
pos = self.origin
#pos = pos + self.end * self.gaugeDir
pos = pos + self.edge * self.gaugeDir
pos = pos + col * self.gauge * self.gaugeDir
#pos = pos + self.edge * self.pitchDir
pos = pos + self.end * self.pitchDir
pos = pos + rw * self.pitch * self.pitchDir
self.positions.append(pos)
def place(self, origin, gaugeDir, pitchDir, boltDir):
self.origin = origin
self.gaugeDir = gaugeDir
self.pitchDir = pitchDir
self.boltDir = boltDir
self.calculatePositions()
for index, pos in enumerate (self.positions):
self.bolts[index].place(pos, gaugeDir, boltDir)
self.nuts[index].place((pos + self.gap * boltDir), gaugeDir, -boltDir)
def createModel(self):
for bolt in self.bolts:
self.models.append(bolt.createModel())
for nut in self.nuts:
self.models.append(nut.createModel())
dbg = self.dbgSphere(self.origin)
self.models.append(dbg)
def dbgSphere(self, pt):
return BRepPrimAPI_MakeSphere(getGpPt(pt), 0.1).Shape()
def getModels(self):
return self.models
|
