hgtrans config GetChannelOverrideExpression
Gets whether and how a data channel has been marked for recompution and how.
Syntax
hgtrans config GetChannelOverrideExpressionsubcase, datatype, request, component
Application
HyperGraphTrans Tcl Set
Description
This command checks whether a data channel is currently overridden with an expression and returns that expression. The expression can contain any combination of legal functions and operators. Two special variables are defined to allow access to the original channel values: “v” and “t”. The values are stored in “t” and the associated time values in “t”.
Inputs
- subcase
- The name of the subcase in which the channel to be override resides.
- datatype
- The name of the datatype in which the channel to be override resides.
- request
- The name of the request in which the channel to be override resides.
- component
- The name of the component in which the channel to be override resides.
Example
Set hgtrans to read a single channel from a file called
“columns.dat” and double it, then verify the
expression.
hgtrans control SetFile “columns.dat”
hgtrans control SetOutputFile “columns.abf”
hgtrans config SetChannelSelected “” “Unknown” “Res. ang acc (rad/s**2)” “column 2” true
hgtrans config SetChannelOverride “” “Unknown” “Res. ang acc (rad/s**2)” “column 2” “v * 2”
hgtrans config GetChannelOverride “” “Unknown” “Res. ang acc (rad/s**2)” “column 2”Errors
Returns an empty string if the data channel has not been overridden.
Keywords
get channel override