How can I convert a file.rst to h5dpf format?

Ayush Kumar

How can I convert a file.rst to h5dpf format?

Ayush Kumar

Please change line 5 to the installation directory. The feature works from 2024R2 onwards.
This example will write out only Nodal displacements for all time-steps. Refer to migrate_to_h5dpf operator for more information.

import os
import time
from ansys.dpf import core as dpf
dpf.set_default_server_context(dpf.AvailableServerContexts.premium)
dpf.start_local_server(ansys_path=r"C:\Program Files\ANSYS Inc\v242")  # Change path to Ansys Installation folder

cwd = os.getcwd()
rst_file_path = os.path.join(cwd, "file.rst")
h5_file = os.path.join(cwd, "file.h5")
if os.path.exists(rst_file_path):
    dataSource_rst = dpf.DataSources(rst_file_path)
else:
    raise NameError("No RST found in the working directory for conversion to h5dpf!")

model = dpf.Model(dataSource_rst)

# Get Result to Export
resultInfoProvider = dpf.operators.metadata.result_info_provider()
resultInfoProvider.inputs.data_sources.connect(dataSource_rst)
result_info = resultInfoProvider.outputs.result_info()

server_op = dpf.operators.utility.server_path()
server_op.inputs.subpath.connect(4)
workflows_path = server_op.outputs.path()

# Filtering Workflows
import_wf_op = dpf.operators.serialization.import_symbolic_workflow()
import_wf_op.inputs.string_or_path.connect(workflows_path + r'\filtering\pass_input_pins.swf')
import_wf_op.inputs.format.connect(1)
pass_input_pins = import_wf_op.outputs.workflow()
pass_input_pins.connect("bool_rotate_to_global", False)

# Create GDC
filtering_gdc_op = dpf.Operator("forward_to_gdc")
filtering_gdc_op.connect(0, "default")
filtering_gdc_op.connect(1, pass_input_pins)

# Compression Workflows
import_wf_op = dpf.operators.serialization.import_symbolic_workflow()
import_wf_op.inputs.string_or_path.connect(workflows_path + r'\compression\pod_compression.swf')
import_wf_op.inputs.format.connect(1)
rom_wf = import_wf_op.outputs.workflow()
rom_wf.connect("pod_threshold", 1e-5) #A adapter

# Create GDC
compression_gdc_op = dpf.Operator("forward_to_gdc")
compression_gdc_op.connect(0, "default")
compression_gdc_op.connect(1, rom_wf)

# Migration
migrate_op = dpf.operators.result.migrate_to_h5dpf()
migrate_op.connect(-2, 1) # GZIP Level
migrate_op.inputs.export_floats.connect(False) # True if Conversion to float
migrate_op.inputs.filename.connect(h5_file)
migrate_op.connect(1, "U")
migrate_op.inputs.all_time_sets.connect(True)
migrate_op.inputs.data_sources.connect(dataSource_rst)
migrate_op.connect(7, filtering_gdc_op,0)
migrate_op.connect(6, compression_gdc_op,0)
migrate_op.run()