LibreMecaDesign.core package

Submodules

core.container module

class core.container.MyClass(params)

Bases: object

This handles multiple properties of a mechanical object such as :

• geometry
• materials
• external forces
• internal constrains

core.query module

Provide the base-level search class (layer 0) to fetch values from the database and store them into a class

example:a = search(‘S_ut > 500 MPa AND S_y < 400 MPa AND normalized OR temper | MED:S_y’) print(a.unique_result[‘S_ut’]) return:a list of relevant results. Each result is a dictionary containing the properties. If an optimization keyword was given, the object self.unique_result return the best matching result of the list.

Usage :

• the syntax is similar to Google search
• text parameters are fetched in all text properties (name, category, etc.)
• to retrieve numeric values for properties, use a SQL syntax such as PROPERTY =<> value
• give every value with its unit
• if you want only one result, give an optimization keyword with the property to optimizelike : | KEYWORD : parameter.

class core.query.search(query_string)

Handle the queries

build_request()

Build the sqlite3 request with the terms

clean_query(queries)

Shortcut to loop remove_unit element by element in the terms list or nested list

escape_optimization(query_string)

Search for an optimization keyword and store the condition

optimize()

prepare_query(query_string)

Split a query string into keywords and interpretate boolean operators

Parameters:query_string – unformatted string Returns:nested list of lists of terms to search alternatively

• the top level list contains the OR arguments
• the nested lists contain the AND argument

process_query()

Fetch all the matching results

Returns:self.results property Return type:a list of all matching results built into dictionaries where the key is the property symbol and the value comes from the database

remove_units(query_string)

Replace multiples and units strings by numbers

text_request(term)

value_request(term)

core.utils module

Module contents