monai.deploy.operators.STLConversionOperator¶

class monai.deploy.operators.STLConversionOperator(fragment, *args, output_file, class_id=None, is_smooth=True, keep_largest_connected_component=True, **kwargs)[source]¶

Bases: holoscan.core.Operator

Converts volumetric image to surface mesh in STL format.

If a file path is provided, the STL binary will be saved in the said output folder. This operator also save the STL file as bytes in memory, identified by the named output. Being optional, this output does not require any downstream receiver.

Named inputs:: image: Image object for which to generate surface mesh. output_file: Optional, the path of the file to save the mesh in STL format.

If provided, this will overrider the output file path set on the object.
Named output:: stl_bytes: Bytes of the surface mesh STL file. Optional, not requiring a downstram receiver.

Creates an object to generate a surface mesh and saves it as an STL file if the path is provided.

Parameters

fragment (Fragment) – An instance of the Application class which is derived from Fragment.
output_file ([Path,str], optional) – output STL file path. None for no file output.
class_id (array, optional) – Class label ids. Defaults to None.
is_smooth (bool, optional) – smoothing or not. Defaults to True.
keep_largest_connected_component (bool, optional) – Defaults to True.

Methods

`__init__`(fragment, *args, output_file[, …])	Creates an object to generate a surface mesh and saves it as an STL file if the path is provided.
`add_arg`(args, *kwargs)	Overloaded function.
`compute`(op_input, op_output, context)	Gets the input (image), processes it and sets results in the output.
`initialize`()	Default implementation of initialize
`resource`(self, name)	Resources associated with the operator.
`setup`(spec)	Default implementation of setup method.
`start`()	Default implementation of start
`stop`()	Default implementation of stop

Attributes

`args`	The list of arguments associated with the component.
`conditions`	Conditions associated with the operator.
`description`	YAML formatted string describing the operator.
`fragment`	The fragment (`holoscan.core.Fragment`) that the operator belongs to.
`id`	The identifier of the component.
`is_metadata_enabled`	Boolean indicating whether the fragment this operator belongs to has metadata transmission enabled.
`metadata`	The metadata dictionary (`holoscan.core.MetadataDictionary`) associated with the operator.
`metadata_policy`	The metadata dictionary (`holoscan.core.MetadataPolicy`) associated with the operator.
`name`	The name of the operator.
`operator_type`	The operator type.
`resources`	Resources associated with the operator.
`spec`	The operator spec (`holoscan.core.OperatorSpec`) associated with the operator.

class OperatorType(self: holoscan.core._core.Operator.OperatorType, value: int) → None¶

Bases: pybind11_builtins.pybind11_object

Enum class for operator types used by the executor.

NATIVE: Native operator.
GXF: GXF operator.
VIRTUAL: Virtual operator. (for internal use, not intended for use by application authors)

Members:

NATIVE

GXF

VIRTUAL

property name¶

__init__(fragment, *args, output_file, class_id=None, is_smooth=True, keep_largest_connected_component=True, **kwargs)[source]¶

Creates an object to generate a surface mesh and saves it as an STL file if the path is provided.

Parameters

fragment (Fragment) – An instance of the Application class which is derived from Fragment.
output_file ([Path,str], optional) – output STL file path. None for no file output.
class_id (array, optional) – Class label ids. Defaults to None.
is_smooth (bool, optional) – smoothing or not. Defaults to True.
keep_largest_connected_component (bool, optional) – Defaults to True.

add_arg(*args, **kwargs)¶

Overloaded function.

add_arg(self: holoscan.core._core.Operator, arg: holoscan.core._core.Arg) -> None

Add an argument to the component.

add_arg(self: holoscan.core._core.Operator, arg: holoscan.core._core.ArgList) -> None

Add a list of arguments to the component.

add_arg(self: holoscan.core._core.Operator, **kwargs) -> None

Add arguments to the component via Python kwargs.

add_arg(self: holoscan.core._core.Operator, arg: holoscan.core._core.Condition) -> None
add_arg(self: holoscan.core._core.Operator, arg: holoscan.core._core.Resource) -> None

Add a condition or resource to the Operator.

This can be used to add a condition or resource to an operator after it has already been constructed.

argholoscan.core.Condition or holoscan.core.Resource: The condition or resource to add.

property args¶

The list of arguments associated with the component.

arglist : holoscan.core.ArgList

compute(op_input, op_output, context)[source]¶

Gets the input (image), processes it and sets results in the output.

This function sets the mesh in STL bytes in its named output, which require no receivers. If provided, the mesh will be saved to the file in STL format.

Parameters

op_input (InputContext) – An input context for the operator.
op_output (OutputContext) – An output context for the operator.
context (ExecutionContext) – An execution context for the operator.

property conditions¶: Conditions associated with the operator.

property description¶: YAML formatted string describing the operator.

property fragment¶: The fragment (holoscan.core.Fragment) that the operator belongs to.

property id¶

The identifier of the component.

The identifier is initially set to -1, and will become a valid value when the component is initialized.

With the default executor (holoscan.gxf.GXFExecutor), the identifier is set to the GXF component ID.

id : int

initialize()¶: Default implementation of initialize

property is_metadata_enabled¶: Boolean indicating whether the fragment this operator belongs to has metadata transmission enabled.

property metadata¶: The metadata dictionary (holoscan.core.MetadataDictionary) associated with the operator.

property metadata_policy¶: The metadata dictionary (holoscan.core.MetadataPolicy) associated with the operator.

property name¶: The name of the operator.

property operator_type¶

The operator type.

holoscan.core.Operator.OperatorType enum representing the type of the operator. The two types currently implemented are native and GXF.

resource(self: holoscan.core._core.Operator, name: str) → Optional[object]¶

Resources associated with the operator.

name : str The name of the resource to retrieve

holoscan.core.Resource or None: The resource with the given name. If no resource with the given name is found, None is returned.

property resources¶: Resources associated with the operator.

setup(spec)[source]¶: Default implementation of setup method.

property spec¶: The operator spec (holoscan.core.OperatorSpec) associated with the operator.

start()¶: Default implementation of start

stop()¶: Default implementation of stop

monai.deploy.operators.PublisherOperator monai.deploy.operators.STLConverter