source: issm/trunk-jpl/src/m/classes/mask.py@ 21049

import numpy
from fielddisplay import fielddisplay
from project3d import project3d
from checkfield import checkfield
from WriteData import WriteData
import MatlabFuncs as m

class mask(object):
        """
        MASK class definition

           Usage:
              mask=mask();
        """

        def __init__(self): # {{{
                self.ice_levelset         = float('NaN')
                self.groundedice_levelset = float('NaN')

                #set defaults
                self.setdefaultparameters()

                #}}}
        def __repr__(self): # {{{
                string="   masks:"

                string="%s\n%s"%(string,fielddisplay(self,"groundedice_levelset","is ice grounded ? grounded ice if > 0, grounding line position if = 0, floating ice if < 0"))
                string="%s\n%s"%(string,fielddisplay(self,"ice_levelset","presence of ice if < 0, icefront position if = 0, no ice if > 0"))
                return string
                #}}}
        def extrude(self,md): # {{{
                self.ice_levelset=project3d(md,'vector',self.ice_levelset,'type','node')
                self.groundedice_levelset=project3d(md,'vector',self.groundedice_levelset,'type','node')
                return self
        #}}}
        def setdefaultparameters(self): # {{{
                return self
        #}}}
        def checkconsistency(self,md,solution,analyses):    # {{{

                md = checkfield(md,'fieldname','mask.ice_levelset'        ,'size',[md.mesh.numberofvertices])
                isice=numpy.array(md.mask.ice_levelset<=0,int)
                if numpy.sum(isice)==0:
                        raise TypeError("no ice present in the domain")

                icefront=numpy.sum(md.mask.ice_levelset[md.mesh.elements-1]==0,axis=1)
                if (max(icefront)==3 and m.strcmp(md.mesh.elementtype(),'Tria')) or (max(icefront==6) and m.strcmp(md.mesh.elementtype(),'Penta')):
                        raise TypeError("At least one element has all nodes on ice front, change md.mask.ice_levelset to fix it")

                return md
        # }}}
        def marshall(self,prefix,md,fid):    # {{{
                WriteData(fid,prefix,'object',self,'fieldname','groundedice_levelset','format','DoubleMat','mattype',1)
                WriteData(fid,prefix,'object',self,'fieldname','ice_levelset','format','DoubleMat','mattype',1)
        # }}}