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# $Id$ |
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from escript.escript import * |
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from escript.modelframe import Model |
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from finley import finley |
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class RectangularDomain(Model): |
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"""generates a mesh over a rectangular domain finley |
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|
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dim |
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l |
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n |
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order |
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periodic |
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intergration order |
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|
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domain (callable) |
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|
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""" |
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def __init__(self,debug=False): |
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Model.__init__(self,debug=debug) |
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self.declareParameter(dim=2,\ |
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l=[1.,1.,1.],\ |
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n=[10,10,10], \ |
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order=1,\ |
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periodic=[False,False,False],\ |
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integrationOrder=-1) |
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self._domain=None |
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|
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def domain(self): |
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if self._domain==None: |
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if self.dim==2: |
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self._domain=finley.Rectangle(n0=self.n[0],\ |
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n1=self.n[1],\ |
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l0=self.l[0],\ |
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l1=self.l[1],\ |
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order=self.order, \ |
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periodic0=self.periodic[0], \ |
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periodic1=self.periodic[1], \ |
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integrationOrder=self.integrationOrder) |
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else: |
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self._domain=finley.Brick(n0=self.n[0],\ |
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n1=self.n[1],\ |
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n2=self.n[2],\ |
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l0=self.l[0],\ |
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l1=self.l[1],\ |
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l2=self.l[2],\ |
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order=self.order, \ |
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periodic0=self.periodic[0], \ |
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periodic1=self.periodic[1], \ |
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periodic2=self.periodic[2], \ |
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integrationOrder=self.integrationOrder) |
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|
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return self._domain |
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|
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class ScalarConstrainer(Model): |
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"""@brief creates a characteristic function for the location of constraints for a scalar value |
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|
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@param domain (in) - rectangular domain |
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@param left (in) - True to set a constraint at the left face of the domain (x[0]=min x[0]), default is False |
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@param right (in) - True to set a constraint at the left face of the domain (x[0]=max x[0]), default is False |
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@param top (in) - True to set a constraint at the left face of the domain (x[1]=min x[1]), default is False |
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@param bottom (in) - True to set a constraint at the left face of the domain (x[1]=max x[1]), default is False |
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@param front (in) - True to set a constraint at the left face of the domain (x[2]=min x[2]), default is False |
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@param back (in) - True to set a constraint at the left face of the domain (x[2]=max x[2]), default is False |
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@param location_of_constraint (out) - object that defines the location of the constraints. |
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|
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In the case that the spatial dimension is two, teh arguments front and back are ignored |
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|
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""" |
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def __init__(self,debug=False): |
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Model.__init__(self,debug=debug) |
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self.declareParameter(domain=None, \ |
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left=False, \ |
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right=False, \ |
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top=False, \ |
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bottom=False, \ |
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front=False, \ |
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back=False) |
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self._location_of_constraint=None |
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|
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def location_of_constraint(self): |
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"""returns the mask of the location of constraint""" |
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if self._location_of_constraint==None: |
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x=self.domain.getX() |
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self._location_of_constraint=Scalar(0,x.getFunctionSpace()) |
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if self.domain.getDim()==3: |
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if self.left: self._location_of_constraint+=(x[0]-inf(x[0])).whereZero() |
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if self.right: self._location_of_constraint+=(x[0]-sup(x[0])).whereZero() |
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if self.front: self._location_of_constraint+=(x[1]-inf(x[1])).whereZero() |
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if self.back: self._location_of_constraint+=(x[1]-sup(x[1])).whereZero() |
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if self.bottom: self._location_of_constraint+=(x[2]-inf(x[2])).whereZero() |
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if self.top: self._location_of_constraint+=(x[2]-sup(x[2])).whereZero() |
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else: |
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if self.left: self._location_of_constraint+=(x[0]-inf(x[0])).whereZero() |
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if self.right: self._location_of_constraint+=(x[0]-sup(x[0])).whereZero() |
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if self.bottom: self._location_of_constraint+=(x[1]-inf(x[1])).whereZero() |
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if self.top: self._location_of_constraint+=(x[1]-sup(x[1])).whereZero() |
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return self._location_of_constraint |
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|
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class VectorConstrainer(Model): |
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"""@brief creates a characteristic function for the location of constraints for a scalar value |
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|
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@param domain (in) - rectangular domain |
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@param left (in) - list of three boolean. left[i]==True sets a constraint for the i-th component at the left |
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face of the domain (x[0]=min x[0]), default is [False,False,False] |
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@param right (in) - list of three boolean. left[i]==True sets a constraint for the i-th component at the right |
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face of the domain (x[0]=max x[0]), default is [False,False,False] |
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@param top (in) - list of three boolean. left[i]==True sets a constraint for the i-th component at the top |
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face of the domain (x[1]=min x[1]), default is [False,False,False] |
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@param bottom (in) - list of three boolean. left[i]==True sets a constraint for the i-th component at the bottom |
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face of the domain (x[1]=min x[1]), default is [False,False,False] |
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@param front (in) - list of three boolean. left[i]==True sets a constraint for the i-th component at the front |
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face of the domain (x[2]=min x[2]), default is [False,False,False] |
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@param back (in) - list of three boolean. left[i]==True sets a constraint for the i-th component at the back |
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face of the domain (x[2]=max x[2]), default is [False,False,False] |
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@param location_of_constraint (callable) - object that defines the location of the constraints for each vector component. |
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|
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In the case that the spatial dimension is two, thh arguments front and back as well as the third component of each argument is ignored. |
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|
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""" |
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def __init__(self,debug=False): |
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Model.__init__(self,debug=debug) |
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self.declareParameter(domain=None, \ |
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left=[0,0,0], \ |
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right=[0,0,0], \ |
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top=[0,0,0], \ |
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bottom=[0,0,0], \ |
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front=[0,0,0], |
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back=[0,0,0]) |
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self._location_of_constraint=None |
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def location_of_constraint(self): |
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"""returns the mask of the location of constraint""" |
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if self._location_of_constraint==None: |
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x=self.domain.getX() |
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self._location_of_constraint=Vector(0,x.getFunctionSpace()) |
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if self.domain.getDim()==3: |
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left_mask=(x[0]-inf(x[0])).whereZero() |
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if self.left[0]: self._location_of_constraint+=left_mask*[1.,0.,0.] |
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if self.left[1]: self._location_of_constraint+=left_mask*[0.,1.,0.] |
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if self.left[2]: self._location_of_constraint+=left_mask*[0.,0.,1.] |
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right_mask=(x[0]-sup(x[0])).whereZero() |
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if self.right[0]: self._location_of_constraint+=right_mask*[1.,0.,0.] |
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if self.right[1]: self._location_of_constraint+=right_mask*[0.,1.,0.] |
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if self.right[2]: self._location_of_constraint+=right_mask*[0.,0.,1.] |
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front_mask=(x[1]-inf(x[1])).whereZero() |
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if self.front[0]: self._location_of_constraint+=front_mask*[1.,0.,0.] |
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if self.front[1]: self._location_of_constraint+=front_mask*[0.,1.,0.] |
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if self.front[2]: self._location_of_constraint+=front_mask*[0.,0.,1.] |
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back_mask=(x[1]-sup(x[1])).whereZero() |
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if self.back[0]: self._location_of_constraint+=back_mask*[1.,0.,0.] |
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if self.back[1]: self._location_of_constraint+=back_mask*[0.,1.,0.] |
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if self.back[2]: self._location_of_constraint+=back_mask*[0.,0.,1.] |
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bottom_mask=(x[2]-inf(x[2])).whereZero() |
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if self.bottom[0]: self._location_of_constraint+=bottom_mask*[1.,0.,0.] |
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if self.bottom[1]: self._location_of_constraint+=bottom_mask*[0.,1.,0.] |
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if self.bottom[2]: self._location_of_constraint+=bottom_mask*[0.,0.,1.] |
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top_mask=(x[2]-sup(x[2])).whereZero() |
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if self.top[0]: self._location_of_constraint+=top_mask*[1.,0.,0.] |
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if self.top[1]: self._location_of_constraint+=top_mask*[0.,1.,0.] |
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if self.top[2]: self._location_of_constraint+=top_mask*[0.,0.,1.] |
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else: |
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left_mask=(x[0]-inf(x[0])).whereZero() |
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if self.left[0]: self._location_of_constraint+=left_mask*[1.,0.] |
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if self.left[1]: self._location_of_constraint+=left_mask*[0.,1.] |
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right_mask=(x[0]-sup(x[0])).whereZero() |
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if self.right[0]: self._location_of_constraint+=right_mask*[1.,0.] |
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if self.right[1]: self._location_of_constraint+=right_mask*[0.,1.] |
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bottom_mask=(x[1]-inf(x[1])).whereZero() |
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if self.bottom[0]: self._location_of_constraint+=bottom_mask*[1.,0.] |
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if self.bottom[1]: self._location_of_constraint+=bottom_mask*[0.,1.] |
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top_mask=(x[1]-sup(x[1])).whereZero() |
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if self.top[0]: self._location_of_constraint+=top_mask*[1.,0.] |
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if self.top[1]: self._location_of_constraint+=top_mask*[0.,1.] |
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return self._location_of_constraint |
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