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STEPutils is a Python package to manage STEP model data.

License: MIT License

Python 97.83% ANTLR 2.17%

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steputils's Issues

preprocessor_version should not be a tuple

The method steputils.p21.HeaderSection.set_file_name assumes the parameter preprocessor_version to be a tuple. This seems incorrect according to the examples on Wikipedia and in the Usage Guide for the STEP PDM Schema (e.g. page 21 --> page 31 of PDF).

Instead, the author field looks like it should be a tuple.

Error when reading stepfiles with special charracters

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb0 in position 6945: invalid start byte
When I manually search for the special characters and delete them in the file then it works.
Can the code do this internally -> to skip the special characters if it finds any?

Get coordinates from entities

Hi @mozman

I'm using this parser and I would be glad if you can help me.

I have this code so far:

from steputils import p21

# Read the STEP file
file_path = r'step.STP'
stepfile = p21.readfile(file_path)

entities_to_get = []
for entity in stepfile.data:
    for instance in entity.instances:
        instance_params = stepfile.get(instance)
        if hasattr(instance_params, 'entity') and hasattr(instance_params.entity, 'name'):
            if instance_params.entity.name == 'TESSELLATED_SHELL':
                for param in instance_params.entity.params:
                    for i in param:
                        if i.startswith('#'):
                            entities_to_get.append(i)

print(f'entities_to_get: {entities_to_get}')

Which print:

entities_to_get: ['#27', '#28', '#29']

Now, with these entities, how can I get the respective coordinates?
Maybe with those entities, I have to use a library like pythonOCC?

Thanks in advance.

Can not decode string "\X\AE" to ®

I have been found following list of bytes can not decode
X\E0
\X\E1
...
\X\E9
\X\AD
\X\AE
\X\F6

read existing STEP files

Hello,
i want to make a program, that extracts the name of parts out of a STEP file. For this i m using the p21.py and the Functions p21.readfile().
` stepfile = p21.readfile(FNAME) #works fine

 stepfile = p21.readfile("C:\Users\maxim\Desktop\...\plate203.STEP") # doesnt work

`
I dont have a clue why it doesnt work. I tried to modify the path with an r in front of it, etc. Nothing works...
Thanks for your help :)
Greetings
Egon

.step file parsing error

I am unable to read a step file.
These .step file are coming from Rhino & Creo professional tools
I keep getting the following error.

File "D:\Progam Files\Python\python v3.7.0\lib\site-packages\steputils\p21.py", line 1025, in readfile
    return load(fp)
  File "D:\Progam Files\Python\python v3.7.0\lib\site-packages\steputils\p21.py", line 1019, in load
    return loads(content)
  File "D:\Progam Files\Python\python v3.7.0\lib\site-packages\steputils\p21.py", line 1003, in loads
    return Parser(lexer).parse()
  File "D:\Progam Files\Python\python v3.7.0\lib\site-packages\steputils\p21.py", line 633, in __init__
    self.tokens = list(lexer.parse())
  File "D:\Progam Files\Python\python v3.7.0\lib\site-packages\steputils\p21.py", line 505, in parse
    yield step_decoder(self.string())  # str
  File "D:\Progam Files\Python\python v3.7.0\lib\site-packages\steputils\p21.py", line 557, in string
    raise ParseError(f'Found invalid character in string "{current}".')
steputils.exceptions.ParseError: Found invalid character in string "
".

When I open the .stp files in notepad++ text editor, the encoding is UTF-8.
I tried changing the file encoding to ISO 8859-1 without any success.

mozman / steputils Goto Github PK

steputils's People

Contributors

Stargazers

Watchers

Forkers

steputils's Issues

preprocessor_version should not be a tuple

Error when reading stepfiles with special charracters

Get coordinates from entities

Can not decode string "\X\AE" to ®

read existing STEP files

.step file parsing error

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