314 lines
10 KiB
Python
314 lines
10 KiB
Python
import os
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import FreeCAD
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from .constraint import cstrName, PlaneInfo, NormalInfo
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from .utils import getIcon, syslogger as logger, objName, project2D, getNormal
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from .proxy import ProxyType, PropertyInfo
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class System(ProxyType):
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'solver system meta class'
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_typeID = '_SolverType'
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_typeEnum = 'SolverType'
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_propGroup = 'Solver'
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_iconName = 'Assembly_Assembly_Tree.svg'
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@classmethod
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def setDefaultTypeID(mcs,obj,name=None):
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if not name:
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info = mcs.getInfo()
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idx = 1 if len(info.TypeNames)>1 else 0
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name = info.TypeNames[idx]
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super(System,mcs).setDefaultTypeID(obj,name)
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@classmethod
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def getIcon(mcs,obj):
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func = getattr(mcs.getProxy(obj),'getIcon',None)
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if func:
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icon = func(obj)
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if icon:
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return icon
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return getIcon(mcs,mcs.isDisabled(obj))
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@classmethod
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def isDisabled(mcs,obj):
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proxy = mcs.getProxy(obj)
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return not proxy or proxy.isDisabled(obj)
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@classmethod
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def isTouched(mcs,obj):
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proxy = mcs.getProxy(obj)
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return proxy and proxy.isTouched(obj)
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@classmethod
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def touch(mcs,obj,touched=True):
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proxy = mcs.getProxy(obj)
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if proxy:
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proxy.touch(obj,touched)
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@classmethod
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def onChanged(mcs,obj,prop):
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proxy = mcs.getProxy(obj)
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if proxy:
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proxy.onChanged(obj,prop)
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if super(System,mcs).onChanged(obj,prop):
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obj.Proxy.onSolverChanged()
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@classmethod
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def getSystem(mcs,obj):
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proxy = mcs.getProxy(obj)
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if proxy:
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system = proxy.getSystem(obj)
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if isinstance(system,SystemExtension):
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system.relax = obj.AutoRelax
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return system
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@classmethod
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def isConstraintSupported(mcs,obj,name):
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if name == 'Locked':
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return True
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proxy = mcs.getProxy(obj)
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if proxy:
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return proxy.isConstraintSupported(name)
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def _makePropInfo(name,tp,doc='',default=None):
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PropertyInfo(System,name,tp,doc,group='Solver',default=default)
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_makePropInfo('Verbose','App::PropertyBool')
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_makePropInfo('AutoRelax','App::PropertyBool')
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class SystemBase(object):
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__metaclass__ = System
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_id = 0
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_props = ['Verbose','AutoRelax']
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def __init__(self,obj):
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self._touched = True
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self.verbose = obj.Verbose
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self.log = logger.info if self.verbose else logger.debug
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super(SystemBase,self).__init__()
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@classmethod
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def getPropertyInfoList(cls):
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return cls._props
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@classmethod
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def getName(cls):
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return 'None'
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def isConstraintSupported(self,_cstrName):
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return True
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def isDisabled(self,_obj):
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return True
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def isTouched(self,_obj):
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return getattr(self,'_touched',True)
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def touch(self,_obj,touched=True):
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self._touched = touched
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def onChanged(self,obj,prop):
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if prop == 'Verbose':
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self.verbose = obj.Verbose
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self.log = logger.info if obj.Verbose else logger.debug
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class SystemExtension(object):
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def __init__(self):
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super(SystemExtension,self).__init__()
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self.NameTag = ''
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self.sketchPlane = None
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self.cstrObj = None
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self.firstInfo = None
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self.secondInfo = None
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self.relax = False
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def checkRedundancy(self,obj,firstInfo,secondInfo):
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self.cstrObj,self.firstInfo,self.secondInfo=obj,firstInfo,secondInfo
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def addSketchPlane(self,*args,**kargs):
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_ = kargs
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self.sketchPlane = args[0] if args else None
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return self.sketchPlane
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def setOrientation(self,h,lockAngle,yaw,pitch,roll,n1,n2,group):
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if not lockAngle:
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h.append(self.addParallel(n1.entity,n2.entity,group=group))
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return h
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if not yaw and not pitch and not roll:
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n = n2.entity
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else:
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rot = n2.rot.multiply(FreeCAD.Rotation(yaw,pitch,roll))
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e = self.addNormal3dV(*getNormal(rot))
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n = self.addTransform(e,*n2.params,group=group)
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h.append(self.addSameOrientation(n1.entity,n,group=group))
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return h
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def reportRedundancy(self,warn=False):
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msg = '{} between {} and {}'.format(cstrName(self.cstrObj),
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self.firstInfo.PartName, self.secondInfo.PartName)
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if warn:
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logger.warn('skip redundant ' + msg, frame=1)
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else:
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logger.info('auto relax ' + msg, frame=1)
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def countConstraints(self,increment,limit,*names):
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first,second = self.firstInfo,self.secondInfo
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if not first or not second:
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return 0
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count = 0
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for name in names:
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cstrs = first.CstrMap.get(second.Part,{}).get(name,None)
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if not cstrs:
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if increment:
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cstrs = second.CstrMap.setdefault(
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first.Part,{}).setdefault(name,[])
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else:
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cstrs = second.CstrMap.get(first.Part,{}).get(name,[])
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if increment:
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cstrs += [None]*increment
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count += len(cstrs)
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if limit and count>=limit:
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if count>limit:
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self.reportRedundancy(True)
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return -1
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elif count>len(cstrs):
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self.reportRedundancy()
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return count
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def addPlaneCoincident(
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self, d, dx, dy, lockAngle, yaw, pitch, roll, pln1, pln2, group=0):
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if not group:
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group = self.GroupHandle
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h = []
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count=self.countConstraints(2 if lockAngle else 1,2,'Coincident')
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if count < 0:
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return
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if d or dx or dy:
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dx,dy,d = pln2.normal.rot.multVec(FreeCAD.Vector(dx,dy,d))
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v = pln2.origin.vector+FreeCAD.Vector(dx,dy,d)
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e = self.addTransform(
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self.addPoint3dV(*v),*pln2.origin.params,group=group)
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else:
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v = pln2.origin.vector
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e = pln2.origin.entity
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if not lockAngle and count==2:
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# if there is already some other plane coincident constraint set for
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# this pair of parts, we reduce this second constraint to either a
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# points horizontal or vertical constraint, i.e. reduce the
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# constraining DOF down to 1.
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#
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# We project the initial points to the first element plane, and
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# check for differences in x and y components of the points to
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# determine whether to use horizontal or vertical constraint.
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v1,v2 = project2D(pln1.normal.rot, pln1.origin.vector, v)
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if abs(v1.x-v2.x) < abs(v1.y-v2.y):
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h.append(self.addPointsHorizontal(
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pln1.origin.entity, e, pln1.entity, group=group))
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else:
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h.append(self.addPointsVertical(
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pln1.origin.entity, e, pln1.entity, group=group))
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return h
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h.append(self.addPointsCoincident(pln1.origin.entity, e, group=group))
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return self.setOrientation(h, lockAngle, yaw, pitch, roll,
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pln1.normal, pln2.normal, group)
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def addPlaneAlignment(self,d,lockAngle,yaw,pitch,roll,pln1,pln2,group=0):
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if not group:
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group = self.GroupHandle
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h = []
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if self.relax:
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count = self.countConstraints(2 if lockAngle else 1,3,'Alignment')
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if count < 0:
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return
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else:
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count = 0
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if d:
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h.append(self.addPointPlaneDistance(
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d, pln2.origin.entity, pln1.entity, group=group))
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else:
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h.append(self.addPointInPlane(
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pln2.origin.entity, pln1.entity,group=group))
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if count<=2:
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if count==2 and not lockAngle:
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self.reportRedundancy()
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self.setOrientation(h, lockAngle, yaw, pitch, roll,
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pln1.normal, pln2.normal, group)
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return h
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def addAxialAlignment(self,lockAngle,yaw,pitch,roll,ln1,ln2,group=0):
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if not group:
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group = self.GroupHandle
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h = []
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if not isinstance(ln1,NormalInfo):
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if not isinstance(ln2,NormalInfo):
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lockAngle = False
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else:
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ln1,ln2 = ln2,ln1
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count = self.countConstraints(2 if lockAngle else 1,2,'Axial')
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if count < 0:
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return
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relax = count==2 and not lockAngle
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if isinstance(ln2,NormalInfo):
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ln = ln2.ln
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if not relax:
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h = self.setOrientation(
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h,lockAngle,yaw,pitch,roll,ln1,ln2,group)
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else:
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ln = ln2.entity
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if not relax:
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h.append(self.addParallel(ln1.entity,ln,group=group))
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h.append(self.addPointOnLine(ln1.p0,ln,group=group))
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return h
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def addMultiParallel(self,lockAngle,yaw,pitch,raw,e1,e2,group=0):
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if not group:
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group = self.GroupHandle
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h = []
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isPlane = isinstance(e1,PlaneInfo),isinstance(e2,PlaneInfo)
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if all(isPlane):
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return self.setOrientation(h, lockAngle, yaw, pitch, raw,
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e1.normal, e2.normal, group);
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if not any(isPlane):
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h.append(self.addParallel(e1, e2, group=group))
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elif isPlane[0]:
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h.append(self.addPerpendicular(e1.normal.entity, e2, group=group))
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else:
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h.append(self.addPerpendicular(e1, e2.normal.entity, group=group))
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return h
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def addColinear(self,l1,l2,wrkpln=0,group=0):
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h = []
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if isinstance(l1,NormalInfo):
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pt = l1.p0
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l1 = l1.ln
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else:
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pt = l1.p0
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l1 = l1.entity
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if isinstance(l2,NormalInfo):
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l2 = l2.ln
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else:
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l2 = l2.entity
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h.append(self.addParallel(l1,l2,wrkpln=wrkpln,group=group))
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h.append(self.addPointOnLine(pt,l2,wrkpln=wrkpln,group=group))
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return h
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def addPlacement(self,pla,group=0):
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q = pla.Rotation.Q
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base = pla.Base
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nameTagSave = self.NameTag
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nameTag = nameTagSave+'.' if nameTagSave else 'pla.'
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ret = []
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for n,v in (('x',base.x),('y',base.y),('z',base.z),
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('qw',q[3]),('qx',q[0]),('qy',q[1]),('qz',q[2])):
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self.NameTag = nameTag+n
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ret.append(self.addParamV(v,group))
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self.NameTag = nameTagSave
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return ret
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