initial upload
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112
PyLaGriT/examples/julia/polygon_map/2d_mesh.avs
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PyLaGriT/examples/julia/polygon_map/2d_mesh.avs
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1
PyLaGriT/examples/julia/polygon_map/README
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1
PyLaGriT/examples/julia/polygon_map/README
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This example demonstrates how PyLaGriT can be used within a Julia script. The julia script "polygon_map.jl" and the python script "polygon_map.py" perform the same LaGriT operations. The two scripts can be compared to see how the syntax is modified for the Julia languange.
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43
PyLaGriT/examples/julia/polygon_map/polygon_map.jl
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43
PyLaGriT/examples/julia/polygon_map/polygon_map.jl
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using PyCall
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@pyimport pylagrit
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@pyimport numpy as np
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# User parameters #######################
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# Discretization
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nx = 61; ny = 61
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# Polygon delineation filename
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polygon_file = "2d_mesh.avs"
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# User parameters #######################
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l = pylagrit.PyLaGriT()
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# Read in polygon delineation mesh
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mopoly = l[:read](polygon_file)
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# Create quad using polygon min and max coordinates
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xs = linspace(mopoly[:xmin],mopoly[:xmax],nx)
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ys = linspace(mopoly[:ymin],mopoly[:ymax],ny)
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#xs = np.linspace(mopoly.xmin,mopoly.xmax,nx)
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#ys = np.linspace(mopoly.ymin,mopoly.ymax,ny)
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moquad = l[:gridder](xs,ys,elem_type="quad",connect=true)
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mopoly[:setatt]("itetclr",1)
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# Create extruded quad to tet and center at z=0
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moprism = mopoly[:extrude](1.0)
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moprism[:trans]((0.,0.,0.),(0.,0.,0.5))
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motet = moprism[:grid2grid_prismtotet3]()
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# Clean up a little
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mopoly[:delete]()
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moprism[:delete]()
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# Add attribute to moquad to store if in polygon or not
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moquad[:addatt]("if_in_poly",vtype="vint")
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moquad[:setatt]("if_in_poly", 0) # Make sure attr starts as zero
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# Interpolate motet's itetclr into moquad's if_in_poly
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moquad[:interpolate_map]("if_in_poly",motet,"itetclr")
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moquad[:intersect_elements](motet,attr_name="if_inter")
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# Write out file, mapping is stored as cell attribute in if_inter
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moquad[:dump]("polygon_map_julia.inp")
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40
PyLaGriT/examples/julia/polygon_map/polygon_map.py
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40
PyLaGriT/examples/julia/polygon_map/polygon_map.py
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from pylagrit import PyLaGriT
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import numpy as np
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# User parameters #######################
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# Discretization
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nx = 61; ny = 61
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# Polygon delineation filename
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polygon_file = '2d_mesh.avs'
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# User parameters #######################
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l = PyLaGriT()
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# Read in polygon delineation mesh
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mopoly = l.read(polygon_file)
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# Create quad using polygon min and max coordinates
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xs = np.linspace(mopoly.xmin,mopoly.xmax,nx)
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ys = np.linspace(mopoly.ymin,mopoly.ymax,ny)
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moquad = l.gridder(xs,ys,elem_type='quad',connect=True)
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mopoly.setatt('itetclr',1)
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# Create extruded quad to tet and center at z=0
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mopoly.extrude(1.0)
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moprism = mopoly.extrude(1.0)
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moprism.trans((0.,0.,0.),(0.,0.,0.5))
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motet = moprism.grid2grid_prismtotet3()
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# Clean up a little
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mopoly.delete()
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moprism.delete()
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# Add attribute to moquad to store if in polygon or not
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moquad.addatt('if_in_poly',vtype='vint')
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moquad.setatt('if_in_poly', 0) # Make sure attr starts as zero
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# Interpolate motet's itetclr into moquad's if_in_poly
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moquad.interpolate_map('if_in_poly',motet,'itetclr')
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moquad.intersect_elements(motet,attr_name='if_inter')
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moquad.dump('polygon_map_python.inp')
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