diff --git a/tools/Paraview macros/etvk_voxels.py b/tools/Paraview macros/etvk_voxels.py new file mode 100644 index 00000000..16512a9e --- /dev/null +++ b/tools/Paraview macros/etvk_voxels.py @@ -0,0 +1,205 @@ +# Copyright (C) 2015-2021: The University of Edinburgh +# Authors: Craig Warren, Antonis Giannopoulos, and John Hartley +# +# This file is part of gprMax. +# +# gprMax is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# gprMax is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with gprMax. If not, see . + +import mmap +import os +from xml.etree import ElementTree as ET +import json + +def display_pmls_new(pmlthick, dx_dy_dz, nx_ny_nz): + """Display PMLs as box sources using PML thickness values. + Only suitable for gprMax > v.4 + + Args: + pmlthick (tuple): PML thickness values for each slab (cells) + dx_dy_dz (tuple): Spatial resolution (m) + nx_ny_dz (tuple): Domain size (cells) + """ + + pml_names = ['x0', 'y0', 'z0', 'xmax', 'ymax', 'zmax'] + pmls = dict.fromkeys(pml_names, None) + + if pmlthick[0] != 0: + x0 = Box(Center=[pmlthick[0] * dx_dy_dz[0] / 2, + nx_ny_nz[1] * dx_dy_dz[1] / 2, + nx_ny_nz[2] * dx_dy_dz[2] / 2], + XLength=pmlthick[0] * dx_dy_dz[0], + YLength=nx_ny_nz[1] * dx_dy_dz[1], + ZLength=nx_ny_nz[2] * dx_dy_dz[2]) + pmls['x0'] = x0 + + if pmlthick[3] != 0: + xmax = Box(Center=[dx_dy_dz[0] * (nx_ny_nz[0] - pmlthick[3] / 2), + nx_ny_nz[1] * dx_dy_dz[1] / 2, + nx_ny_nz[2] * dx_dy_dz[2] / 2], + XLength=pmlthick[3] * dx_dy_dz[0], + YLength=nx_ny_nz[1] * dx_dy_dz[1], + ZLength=nx_ny_nz[2] * dx_dy_dz[2]) + pmls['xmax'] = xmax + + if pmlthick[1] != 0: + y0 = Box(Center=[nx_ny_nz[0] * dx_dy_dz[0] / 2, + pmlthick[1] * dx_dy_dz[1] / 2, + nx_ny_nz[2] * dx_dy_dz[2] / 2], + XLength=nx_ny_nz[0] * dx_dy_dz[0], + YLength=pmlthick[1] * dx_dy_dz[1], + ZLength=nx_ny_nz[2] * dx_dy_dz[2]) + pmls['y0'] = y0 + + if pmlthick[4] != 0: + ymax = Box(Center=[nx_ny_nz[0] * dx_dy_dz[0] / 2, + dx_dy_dz[1] * (nx_ny_nz[1] - pmlthick[4] / 2), + nx_ny_nz[2] * dx_dy_dz[2] / 2], + XLength=nx_ny_nz[0] * dx_dy_dz[0], + YLength=pmlthick[4] * dx_dy_dz[1], + ZLength=nx_ny_nz[2] * dx_dy_dz[2]) + pmls['ymax'] = ymax + + if pmlthick[2] != 0: + z0 = Box(Center=[nx_ny_nz[0] * dx_dy_dz[0] / 2, + nx_ny_nz[1] * dx_dy_dz[1] / 2, + pmlthick[2] * dx_dy_dz[2] / 2], + XLength=nx_ny_nz[0] * dx_dy_dz[0], + YLength=nx_ny_nz[1] * dx_dy_dz[1], + ZLength=pmlthick[2] * dx_dy_dz[2]) + pmls['z0'] = z0 + + if pmlthick[5] != 0: + zmax = Box(Center=[nx_ny_nz[0] * dx_dy_dz[0] / 2, + nx_ny_nz[1] * dx_dy_dz[1] / 2, + dx_dy_dz[2] * (nx_ny_nz[2] - pmlthick[5] / 2)], + XLength=nx_ny_nz[0] * dx_dy_dz[0], + YLength=nx_ny_nz[1] * dx_dy_dz[1], + ZLength=pmlthick[5] * dx_dy_dz[2]) + pmls['zmax'] = zmax + + # Name PML sources and set opacity + tmp = [] + for pml in pmls: + if pmls[pml]: + RenameSource('PML - ' + pml, pmls[pml]) + Hide(pmls[pml], renderview) + tmp.append(pmls[pml]) + + # Create a group of PMLs to switch on/off easily + if tmp: + pml_gp = AppendDatasets(Input=tmp) + RenameSource('PML - All', pml_gp) + pml_view = Show(pml_gp) + pml_view.Opacity = 0.5 + +def load_src_rx(srcs, dl): + # Display sources and receivers as Paraview box sources + for item in srcs: + p = item['position'] + n = item['name'] + src_rx = Box(Center=[p[0] + dl[0]/2, + p[1] + dl[1]/2, + p[2] + dl[2]/2], + XLength=dl[0], YLength=dl[1], ZLength=dl[2]) + RenameSource(n, src_rx) + Show(src_rx) + + +def load_materials(ml): + # create a threshold filter for each material type + for i, m in enumerate(ml): + threshold = Threshold(Input=model) + threshold.ThresholdRange = [i, i] + threshold.Scalars = ['CELLS', 'Material'] + RenameSource(m, threshold) + + # Show data in view, except for free_space + if i != 1: + thresholddisplay = Show(threshold, renderview) + thresholddisplay.ColorArrayName = ['CELLS', 'Material'] + threshold.UpdatePipeline() + +from paraview.simple import * + +# Get whatever source is loaded (should be model) +model = GetActiveSource() + +# Get active view +renderview = GetActiveView() + +# Show Data Axes Grid +renderview.AxesGrid.Visibility = 1 + +# Hide display of root data +Hide(model) + +# one file only for now + +fp = model.FileName[0] + +# materials string +ms = None + +# load json embedded in comment of line 3 +with open(fp, 'rb') as f: + f.readline() + f.readline() + # comments + c = f.readline().decode() + +# strip comment tags +c = c[5:-5] +# model information +c = json.loads(c) + +# discretisation +dl = c['dx_dy_dz'] +# n voxels +nl = c['nx_ny_nz'] + +# load material filters +try: + ml = c['Materials'] + load_materials(ml) +except KeyError: + print('No Materials to load') + +# load sources +try: + srcs = c['Sources'] + load_src_rx(srcs, dl) +except KeyError: + print('No sources to load') + +# load rxs +try: + rxs = c['Receivers'] + load_src_rx(rxs, dl) +except KeyError: + print('No receivers to load') + +# load pmls +try: + pt = c['PMLthickness'] + display_pmls_new(pt, dl, nl) +except KeyError: + print('No PMLs to load') + +RenderAllViews() + +# Reset view to fit data +renderview.ResetCamera() + +# Show color bar/color legend +# thresholdDisplay.SetScalarBarVisibility(renderview, False)