The script below is a Python code embedded in Ansys Mechanical. After the analysis is performed, the results of each step are intended to be saved into a JSON file.<\/p>\n
import json<\/p>\n
def after_post(this, solution): # Do not edit this line
print(“post script”)
mesh = DataModel.MeshDataByName(ExtAPI.DataModel.MeshDataNames[0])
solution = Model.Analyses[0].Solution
node_count = mesh.NodeCount
aset = Model.Analyses[0].AnalysisSettings
steps = aset.NumberOfSteps
solution = Model.Analyses[0].Solution
base_dir = “C:\\\\temp\\\\”
data = {}
for step in range(steps): # steps
time = aset.GetStepEndTime(step + 1)
for obj in solution.Children:
name = obj.Name
if name in [“LOCX”, “LOCY”, “LOCZ”, “UX”, “UY”, “UZ”]:
obj.DisplayTime = time
solution.EvaluateAllResults()
timestep_data = []
LOCX = DataModel.GetObjectsByName(“LOCX”)[0].PlotData
LOCY = DataModel.GetObjectsByName(“LOCY”)[0].PlotData
LOCZ = DataModel.GetObjectsByName(“LOCZ”)[0].PlotData
UX = DataModel.GetObjectsByName(“UX”)[0].PlotData
UY = DataModel.GetObjectsByName(“UY”)[0].PlotData
UZ = DataModel.GetObjectsByName(“UZ”)[0].PlotData
for i in range(len(LOCX[‘Node’])):
node_data = [
LOCX[“Values”][i],
LOCY[“Values”][i],
LOCZ[“Values”][i],
UX[“Values”][i],
UY[“Values”][i],
UZ[“Values”][i]
]
timestep_data.append(node_data)
data[str(step + 1)] = timestep_data
sorted_data = {k: data[k] for k in sorted(data)}
json_file_path = base_dir + “example.json”
with open(json_file_path, ‘w’) as json_file:
json.dump(sorted_data, json_file, indent=4)<\/p>\n
print(“Data saved to”, json_file_path)
pass<\/p>\n
When solving this simulation, the following error occurs. The very strange thing is that when solving the exact same file 10 times, this error occurs about 8 times, while it runs successfully about 2 times. We have not yet identified the cause. Your help is urgently needed!<\/p>\n
<\/p>\n
Error<\/p>\n
Error when invoking function ‘after_post’.Traceback (most recent call last):
File “<string>”, line 30, in after_post
StandardError: Exception has been thrown by the target of an invocation.Traceback (most recent call last):
File “<string>”, line 30, in after_post
NotImplementedError: PlotData is not supported for LOCX<\/p>\n
Python Code “Python Code” (Object ID 721) execution aborted: recursive execution has been detected. This is typically caused by an “update” or “evaluate” command. Please 1) verify the code correctness, and 2) ensure the correct callback is being used.<\/p>\n
An error occurred when the post processor attempted to load a specific result. Please review all messages.<\/p>\n","protected":false},"template":"","class_list":["post-377325","topic","type-topic","status-publish","hentry","topic-tag-error-explicit-dynamics","topic-tag-python-scripting","topic-tag-python-scripts-2","topic-tag-script"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t