DAT to CHOP

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Summary
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The DAT to CHOP will create a set of CHOP channels with values derived from a DAT.

PythonIcon.pngdattoCHOP_Class


Parameters - DAT to Page

DAT dat - The DAT to be used to retrieve values. This DAT should be in table format. For table format, use either a Table DAT or a Convert DAT set to To Table.

Select Rows extractrows - - This parameter allows you to pick different ways of specifying the rows selected.

  • All all - All rows selected.
  • by Name byname - Rows selected using Start Row Name and End Row Name parameters.
  • by Index byindex - Rows selected using Start Row Index and End Row Index parameters.
  • by Start Name, End Index bynameindex - Rows selected using Start Row Name and End Row Index parameters.
  • by Start Index, End Name byindexname - Rows selected using Start Row Index and End Row Name parameters.
  • by Values bynames - Rows selected by specifying the row values explicitly.
  • by Condition byexpr - Rows selected by an expression to be evaluated for the from column.

Start Row Name rownamestart - Specify the row name to start the selection range from.

Start Row Index rowindexstart - Specify the row index to start the selection range from.

End Row Name rownameend - Specify the row name to end the selection range.

End Row Index rowindexend - Specify the row index to end the selection range.

Row Select Values rownames - Specify actual row names that you want to select. You can use pattern matching, for example row[1-4] will select all the rows names row1 thru row4.

Row Select Condition rowexpr - Specify an expression that will be evaluated. If the expression evaluates to true, the row will be selected.

Expand the parameter and you will see that it is in expression mode.

SelectDAT rowselectexpr.png

By default, the Python expression is re.match('.*',me.inputCell.val) != None. '.*' means match any character multiple times, so this expression matches all values. If you want to match the parent's operator name followed by any numeric number you can use parent().name+'[0-9]*', where '[0-9]*' matches any numerical string. '.*'+parent().name+'.*' will match any cell that contains the operator's parent name. You can check Regular Expression Operations for additional information on how to use the Python Regular Expression module.

From Column fromcol - When selecting rows by values, this parameter selects which column to use when matching cell values to Selected Row Values to determine which rows are selected.

Select Cols extractcols - - This parameter allows you to pick different ways of specifying the columns selected.

  • All all - All columns selected.
  • by Name byname - Columns selected using Start Col Name and End Col Name parameters.
  • by Index byindex - Columns selected using Start Col Index and End Col Index parameters.
  • by Start Name, End Index bynameindex - Columns selected using Start Col Name and End Col Index parameters.
  • by Start Index, End Name byindexname - Columns selected using Start Col Index and End Col Name parameters.
  • by Values bynames - Columns selected by specifying the column values explicitly.
  • by Condition byexpr - Rows selected by an expression to be evaluated for the from row.

Start Col Name colnamestart - Specify the column name to start the selection range from.

Start Col Index colindexstart - Specify the column index to start the selection range from.

End Col Name colnameend - Specify the column name to end the selection range.

End Col Index colindexend - Specify the column index to end the selection range.

Col Select Values colnames - Specify actual column names that you want to select. You can use pattern matching, for example colvalue[1-4] will select all the columns named colvalue1 thru colvalue4.

Col Select Condition colexpr - Specify an expression that will be evaluated. If the expression evaluates to true, the column will be selected. See Row Select Condition for more details.

From Row fromrow - When extracting columns by Specified Names, this parameter selects which row to use when matching cell values to Selected Col Values to determine which columns are selected.

Output output - - Specify the form of the channels output.

  • Single Channel single - A single channel is created with one sample for every value extracted.
  • Channel per Row chanperrow - A separate channel is created for every row extracted.
  • Channel per Column chanpercol - A separate channel is created for every column extracted.
  • Channel per Value chanpervalue - A separate channel is created for every value extracted.

First Row is firstrow - - Specifies whether the first row is ignored, names, or values.

  • Ignored ignored -
  • Names names -
  • Values values -

First Column is firstcolumn - - Specifies whether the first columnn is ignored, names, or values.

  • Ignored ignored -
  • Names names -
  • Values values -


Parameters - Common Page

Time Slice timeslice - Turning this on forces the channels to be "Time Sliced". A Time Slice is the time between the last cook frame and the current cook frame.

Scope scope - To determine which channels get affected, some CHOPs use a Scope string on the Common page.

Sample Rate Match srselect - - Handle cases where multiple input CHOPs' sample rates are different. When Resampling occurs, the curves are interpolated according to the Interpolation Method Option, or "Linear" if the Interpolate Options are not available.

  • Resample At First Input's Rate first - Use rate of first input to resample others.
  • Resample At Maximum Rate max - Resample to the highest sample rate.
  • Resample At Minimum Rate min - Resample to the lowest sample rate.
  • Error If Rates Differ err - Doesn't accept conflicting sample rates.

Export Method exportmethod - - This will determine how to connect the CHOP channel to the parameter. Refer to the Export article for more information.

  • DAT Table by Index datindex - Uses the docked DAT table and references the channel via the index of the channel in the CHOP.
  • DAT Table by Name datname - Uses the docked DAT table and references the channel via the name of the channel in the CHOP.
  • Channel Name is Path:Parameter autoname - The channel is the full destination of where to export to, such has geo1/transform1:tx.

Export Root autoexportroot - This path points to the root node where all of the paths that exporting by Channel Name is Path:Parameter are relative to.

Export Table exporttable - The DAT used to hold the export information when using the DAT Table Export Methods (See above).

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