fabex.toolpath

fabex.toolpath#

Fabex ‘toolpath.py’ © 2012 Vilem Novak

Generate toolpaths from path chunks.

Functions#

get_path(context, operation)

Calculate the path for a given operation in a specified context.

get_path_3_axis(context, operation)

Generate a machining path based on the specified operation strategy.

get_path_4_axis(context, operation)

Generate a path for a specified axis based on the given operation.

Module Contents#

async get_path(context, operation)[source]#

Calculate the path for a given operation in a specified context.

This function performs various calculations to determine the path based on the operation’s parameters and context. It checks for changes in the operation’s data and updates relevant tags accordingly. Depending on the number of machine axes specified in the operation, it calls different functions to handle 3-axis, 4-axis, or 5-axis operations. Additionally, if automatic export is enabled, it exports the generated G-code path.

Parameters:

  • context – The context in which the operation is being performed.

  • operation – An object representing the operation with various attributes such as machine_axes, strategy, and auto_export.

async get_path_3_axis(context, operation)[source]#

Generate a machining path based on the specified operation strategy.

This function evaluates the provided operation’s strategy and generates the corresponding machining path. It supports various strategies such as ‘CUTOUT’, ‘CURVE’, ‘PROJECTED_CURVE’, ‘POCKET’, and others. Depending on the strategy, it performs specific calculations and manipulations on the input data to create a path that can be used for machining operations. The function handles different strategies by calling appropriate methods from the strategy module and processes the path samples accordingly. It also manages the generation of chunks, which represent segments of the machining path, and applies any necessary transformations based on the operation’s parameters.

Parameters:

  • context (bpy.context) – The Blender context containing scene information.

  • operation (Operation) – An object representing the machining operation, which includes strategy and other relevant parameters.

Returns:

This function does not return a value but modifies the state of the operation and context directly.

Return type:

None

async get_path_4_axis(context, operation)[source]#

Generate a path for a specified axis based on the given operation.

This function retrieves the bounds of the operation and checks the strategy associated with the axis. If the strategy is one of the specified types (‘PARALLELR’, ‘PARALLEL’, ‘HELIX’, ‘CROSS’), it generates path samples and processes them into chunks for meshing. The function utilizes various helper functions to achieve this, including obtaining layers and sampling chunks.

Parameters:

  • context – The context in which the operation is executed.

  • operation – An object that contains the strategy and other necessary parameters for generating the path.

Returns:

This function does not return a value but modifies

the state of the operation by processing chunks for meshing.

Return type:

None

Contents