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--- visual3d:documentation:pipeline:expressions:brackets [2024/06/19 12:49] – sgranger
+++ visual3d:documentation:pipeline:expressions:brackets [2024/11/15 20:15] (current) – [Brackets] wikisysop
@@ Line 1: / Line 1: @@
-brackets
+====== Brackets ======
-===== contents =====
+===== Parentheses =====
-  * [[#parentheses|1 parentheses]]
+Parentheses **(** and **)** are used to contain the parameters in a function
-  * [[#square_brackets|2 square_brackets]]
-    * [[#square_brackets_2|2.1 square brackets]]
-    * [[#using_square_brackets_and_boolean_operators|2.2 using square brackets and boolean operators]]
+For Example\\
+Vector(0,0,1)
-====== parentheses ======
+===== Square_Brackets =====
-parenthesis **(** and **)** are used to contain the parameters in a function
+Square Brackets **[** and **]** specify frame numbers and components
-for example
-[[index.php?title=vector(0,0,1)&action=edit&redlink=1|vector(0,0,1)]]
-====== square_brackets ======
-=== square brackets ===
+Square Brackets **[** and **]** are used at the end of a function call or parenthesis ( ) to specify the frames numbers and components
-square brackets **[** and **]** specify frame numbers and components
+Example, add two signals and retrieve the component 1 from frame 5
+<code>
+Evaluate_Expression
+/Expression= (TARGET::ORIGINAL::RFT1 + TARGET::ORIGINAL::RFT2)[5,1]
+/Result_Name=RFT_ADD_X
+/Result_Type=DERIVED
+/Result_Folder=PROCESSED
+;
+</code>
-square brackets **[** and **]** are used at the end of a function call or parenthesis ( ) to specify the frames numbers and components
+Example, add two signals and retrieve the component 1 for all frames
-example, add two signals and retrieve the component 1 from frame 5
+<code>
-evaluate_expression
+Evaluate_Expression
-/expression= (target::original::rft1 + target::original::rft2)[5,1]
+/Expression= (TARGET::ORIGINAL::RFT1 + TARGET::ORIGINAL::RFT2)[-1,1]
-/result_name=rft_add_x
+/Result_Name=RFT_ADD_X
-/result_type=derived
+/Result_Type=DERIVED
-/result_folder=processed
+/Result_Folder=PROCESSED
-**;**
+;
-for example, add two signals and retrieve the component 1 for all frames
+</code>
-evaluate_expression
-/expression= (target::original::rft1 + target::original::rft2)[-1,1]
-/result_name=rft_add_x
-/result_type=derived
-/result_folder=processed
-**;**
-**note** a frame of -1 means all frames
-extracting one "component" of data from signal
-the following command will result in the derived signal test containing the x component values of the target rft1.
+**NOTE** a frame of -1 means all frames\\
-**evaluate_expression**
+Extracting one "component" of data from signal
-/expression=target::original::rft1::x
-/result_name=test
-/result_type=derived
-! /result_folder=processed
-**;**
-=== using square brackets and boolean operators ===
-in this example, project a collection of markers onto the floor
+The following command will result in the DERIVED signal TEST containing the X component values of the TARGET RFT1.
+<code>
+Evaluate_Expression
+/EXPRESSION=TARGET::ORIGINAL::RFT1::X
+/RESULT_NAME=TEST
+/RESULT_TYPE=DERIVED
+! /RESULT_FOLDER=PROCESSED
+;
+</code>
+== Using Square Brackets and Boolean Operators ==
+In this example, project a collection of markers onto the floor
 whenever the z-component of a marker is less than a threshold (e.g. 0.08 in this example)
-otherwise set the resulting frame to no_data
+otherwise set the resulting frame to NO_DATA
-**evaluate_expression**
-/expression=(((current_signal[-1,3])<0.08)/((current_signal[-1,3])<0.08))*vector(1,1,0)*current_signal
+<code>
-/signal_types=target
+Evaluate_Expression
-/signal_folder=original
+/EXPRESSION=(((CURRENT_SIGNAL[-1,3])<0.08)/((CURRENT_SIGNAL[-1,3])<0.08))*VECTOR(1,1,0)*CURRENT_SIGNAL
-/signal_names=lft1+lft2+lft3+rft1+rft2+rft3
+/SIGNAL_TYPES=TARGET
-/result_types=target
+/SIGNAL_FOLDER=ORIGINAL
-/result_folders=ground
+/SIGNAL_NAMES=LFT1+LFT2+LFT3+RFT1+RFT2+RFT3
-! /result_name=
+/RESULT_TYPES=TARGET
-/apply_as_suffix_to_signal_name=true
+/RESULT_FOLDERS=GROUND
-**;**
+! /RESULT_NAME=
+/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=TRUE
+;
+</code>