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--- visual3d:documentation:pipeline:file_commands:file_new [2024/07/17 15:45] – created sgranger
+++ visual3d:documentation:pipeline:file_commands:file_new [2025/07/29 17:10] (current) – wikisysop
@@ Line 1: / Line 1: @@
 ====== File New ======
-||
+===== Overview =====
-Remove the Active Workspace and Instantiate a New Workspace.
+The **File_New** command is used to clear the active workspace in Visual3D and initialize a new, blank workspace. This is commonly used in batch processing pipelines, where workflows involve repeatedly loading, analyzing, and saving data across multiple CMZ files.
+This command does not prompt the user to save- any unsaved changes in the active workspace will be lost when the command is executed. Therefore, it is good practice to use File_Save or File_Save_As beforehand if you want to preserve any changes made to the workspace.
+This command is equivalent to navigating to File > New, pressing Ctrl+N, or clicking the New Page icon in the Visual3D toolbar.
+===== Pipeline Command =====
+The command below is as seen in the Visual3D application. It has no parameters, as it performs a standalone function:
 <code>
 File_New
 ;
 </code>
-**NOTE:** The options in the cmo file just closed will persist.
+===== Command Parameters =====
+There are no parameters associated with the File_New command.
+===== Dialog =====
+There is no dialog box associated with this command. In the Visual3D user interface, the equivalent action is triggered by:
+  * Navigating to File > New
+  * Pressing Ctrl + N
+  * Clicking the New Page button on the Visual3D toolbar.
+===== Examples =====
+The following example demonstrates a complete workflow in which **File_New** is used multiple times to manage and reset the workspace between tasks.
+=== Example 1: Pre-processing and Saving Joint Angles ===
+This example walks through a workflow involving joint angle computation and workspace clearing.
+Step 1: Clear any previously loaded workspace and open a subject workspace file
+<code>
+File_New
+;
+File_Open
+/FILE_NAME=Data_Files\Sub04_Workspace.cmz [User Selection]
+! /FILE_PATH=
+! /SEARCH_SUBFOLDERS=FALSE
+! /SUFFIX=
+! /SET_PROMPT=File_Open
+! /ON_FILE_NOT_FOUND=PROMPT
+! /FILE_TYPES_ON_PROMPT=
+;
+</code>
+Step 2: Compute joint angles (Left Hip and Left Knee)
+<code>
+Compute_Model_Based_Data
+/RESULT_NAME=Left_Hip_Angle
+/SUBJECT_TAG=ALL_SUBJECTS
+/FUNCTION=JOINT_ANGLE
+/SEGMENT=LTH
+/REFERENCE_SEGMENT=RPV
+/RESOLUTION_COORDINATE_SYSTEM=
+! /USE_CARDAN_SEQUENCE=FALSE
+! /NORMALIZATION=FALSE
+! /NORMALIZATION_METHOD=
+! /NORMALIZATION_METRIC=
+! /NEGATEX=FALSE
+! /NEGATEY=FALSE
+! /NEGATEZ=FALSE
+! /AXIS1=X
+! /AXIS2=Y
+! /AXIS3=Z
+! /TREADMILL_DATA=FALSE
+! /TREADMILL_DIRECTION=UNIT_VECTOR(0,1,0)
+! /TREADMILL_SPEED=0.0
+;
+Compute_Model_Based_Data
+/RESULT_NAME=Left_Knee_Angle
+/SUBJECT_TAG=ALL_SUBJECTS
+/FUNCTION=JOINT_ANGLE
+/SEGMENT=LSK
+/REFERENCE_SEGMENT=LTH
+/RESOLUTION_COORDINATE_SYSTEM=
+! /USE_CARDAN_SEQUENCE=FALSE
+! /NORMALIZATION=FALSE
+! /NORMALIZATION_METHOD=
+! /NORMALIZATION_METRIC=
+! /NEGATEX=FALSE
+! /NEGATEY=FALSE
+! /NEGATEZ=FALSE
+! /AXIS1=X
+! /AXIS2=Y
+! /AXIS3=Z
+! /TREADMILL_DATA=FALSE
+! /TREADMILL_DIRECTION=UNIT_VECTOR(0,1,0)
+! /TREADMILL_SPEED=0.0
+;
+</code>
+Step 3: Save the workspace with a new name
+<code>
+File_Save_As
+/FILE_NAME=Current_Results\Sub04_Workspace_with_ModelBased.cmz
+! /FOLDER=
+! /SET_PROMPT=Save CMZ file as
+! /SAVE_EMBEDDED_GRAPHICS=FALSE
+! /CREATE_FOLDER_PATH=FALSE
+;
+</code>
+Step 4: Close the file and prepare for the next file.
+<code>
+File_Close
+/FILE_NAME=ALL_FILES
+! /QUERY=
+! /CLOSE_ASSOCIATED_MODELS=FALSE
+;
+File_New
+;
+</code>
+===== Notes =====
+  * File_New is a non-reversible operation in pipelines. Use with caution when automating.
-\\
+----
 [[Visual3D:Documentation:Pipeline:General_Information:Pipeline_Commands_Reference|Back to Pipeline Commands Reference]]