view icqsol_add_surface_field_from_expression.py @ 0:e12b55e960de draft default tip

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#!/usr/bin/env python
import argparse
import shutil

import icqsol_utils

# Parse Command Line.
parser = argparse.ArgumentParser()
parser.add_argument('--input', dest='input', help='Shape dataset selected from history')
parser.add_argument('--input_file_format_and_type', dest='input_file_format_and_type', help='Input file format and type')
parser.add_argument('--input_dataset_type', dest='input_dataset_type', help='Input dataset_type')
parser.add_argument('--field_name', dest='field_name', help='Surface field name')
parser.add_argument('--location', dest='location', help='Location of field within cell, either point or cell')
parser.add_argument('--expression', dest='expression', help='Expression for applying surface field to shape')
parser.add_argument('--time_point', dest='time_points', type=float, action='append', nargs=1, help='Points in time')
parser.add_argument('--max_edge_length', dest='max_edge_length', type=float, default=float('inf'), help='Maximum edge length')
parser.add_argument('--output', dest='output', help='Output dataset')
parser.add_argument('--output_vtk_type', dest='output_vtk_type', help='Output VTK type')

args = parser.parse_args()

input_format, input_file_type = icqsol_utils.get_format_and_type(args.input_file_format_and_type)
time_points = [tp[0] for tp in args.time_points]
tmp_dir = icqsol_utils.get_temp_dir()

# Instantiate a ShapeManager for loading the input.
shape_mgr = icqsol_utils.get_shape_manager(input_format, args.input_dataset_type)

# Get the vtkPolyData object.
pdata = shape_mgr.loadAsVtkPolyData(args.input)

# Add surface field to shape data.
vtk_poly_data = shape_mgr.addSurfaceFieldFromExpressionToVtkPolyData(pdata,
                                                                     args.field_name,
                                                                     args.expression,
                                                                     time_points,
                                                                     args.max_edge_length,
                                                                     args.location)

# Write min/max field values and surface integral.
for comp in range(len(time_points)):
    minVal, maxVal = shape_mgr.getFieldRange(vtk_poly_data, args.field_name, comp)
    surfIntegral = shape_mgr.integrateSurfaceField(vtk_poly_data, args.field_name, comp)
    print 'component {2} min/max values of {3}: {0}/{1} surf integral: {4}'.format(minVal, maxVal, comp, args.field_name, surfIntegral)

# Define the output file format and type (the outpur_format can only be 'vtk').
output_format, output_file_type = icqsol_utils.get_format_and_type(args.output_vtk_type)
tmp_output_path = icqsol_utils.get_temporary_file_path(tmp_dir, output_format)

# Make sure the ShapeManager's writer is vtk.
shape_mgr.setWriter(file_format=icqsol_utils.VTK, vtk_dataset_type=icqsol_utils.POLYDATA)

# Save the output.
shape_mgr.saveVtkPolyData(vtk_poly_data=vtk_poly_data, file_name=tmp_output_path, file_type=output_file_type)
shutil.move(tmp_output_path, args.output)