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--- visual3d:documentation:pipeline:model_based_data_commands:units_of_measurement [2024/06/17 18:21] – created sgranger
+++ visual3d:documentation:pipeline:model_based_data_commands:units_of_measurement [2025/04/29 14:09] (current) – Converted list into a table and added a section for Analog signals. wikisysop
@@ Line 1: / Line 1: @@
+====== Units of Measurement ======
+Visual3D computes all [[Visual3D:Documentation:Visual3D_Signal_Types:LINK_MODEL_BASED_Data_Type|model based items]] using [[https://en.wikipedia.org/wiki/MKS_units|MKS units]], i.e. based on meters, kilograms and seconds. An exception to this rule are [[Visual3D:Documentation:Pipeline:Model_Based_Data_Commands:Joint_Angle#Units_for_Joint_Angles|joint angles]], which are represented in degrees.
-||
+^ Quantity ^ Unit ^
+|Distance | m |
+|Velocity | m/s |
+|Acceleration | m/s/s |
+|Mass | kg |
+|Force | N |
+|Energy | J |
+|Power | W |
+|Moment (Torque) | Nm |
+|Joint Angle | degrees |
+|Joint Angular Velocity | degrees/s |
+|Volume | m cubed |
-Visual3D computes [[Visual3D:Documentation:Visual3D_Signal_Types:LINK_MODEL_BASED_Data_Type|model based items]] using MKS units; eg. based on meters, kilograms and seconds.
+===== Analog Units =====
-An exception to this rule are [[Visual3D:Documentation:Pipeline:Model_Based_Data_Commands:Joint_Angle#Units_for_Joint_Angles|joint angles]], which are represented in degrees.
-\\
-Distance= m
-Velocity= m/s
-Acceleration= m/s^2
-Mass= Kg
-Force= N
-Energy = J
-Power = W
-Moment (Torque) = Nm
-Joint Angle = degrees
-Joint Angular Velocity = degrees/s
-Volume = m^3
+Visual3D expects certain common [[visual3d:documentation:c3d_signal_types:c3d_format#c3d_parameter_format|parameters]] to be included in the ANALOG Section of the [[visual3d:documentation:c3d_signal_types:c3d_format|C3D file]] when [[visual3d:documentation:c3d_signal_types:analog_data_type|ANALOG]] data is present. If no unit parameter is available for an ANALOG signal then Visual3D defaults to interpreting the signal as being reported in Volts (V).
+{{:visual3d_analog_parameters.png}}