Values at nodes can be mapped (interpolated) from a second mesh with the ”map” command (2D and 3D). This second mesh (data source or “master”) is usually available as a result-file from a previous calculation. The ”read” command with the “add” parameter can be used to include this file in the current model. Solver-input files (inp) and result files (frd) can be used as a data source. The command will add an offset to the nodes and elements so that existing nodes and elements will not be overwritten. The original mesh is the target or “slave” of the mapping process. The mapping process will add the interpolated (mapped) values to the dataset(s) which originated from the master mesh. The mapped values can be visualized by selecting the mapped dataset and entity and then by plotting the slave elements or faces with “plot fv slave”. An example of the necessary commands for the mapping process (2D to 2D) is listed below:
  Define a set with the slave nodes or faces. For example with:
comp slave do (to extend the set by the referenced faces or
nodes)

Then open a set and read the master-model:
seto new
setc

If necessary move 'new' in space to match the position of the
slave (see “move”).

Add the faces to the 'new' set
(only nodes and elements are already stored in "new"):
comp new do
plot f new

Define the master set:
qadd master  (catch the right faces)
comp master do

Map the values of dataset 1 with:
map slave master surf ds1

Check the mapping with:
ds 1 e 1
plot fv slave

Write the file with the mapped values:
send slave abq pres ds1 e1

Check the file “slave_ds1e1.dlo” with an editor and use it
in an inp-file.

If the master values are not available in either inp or frd format but in any other format which can be read by cgx (isaac, openFoam ..) you may write them in frd format with the ”send” command.