.. _responses-objective_functions-field_objectives-read_field_coordinates:

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read_field_coordinates
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Add context to data: flag to indicate that field coordinates should be read


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**Specification**

- *Alias:* None

- *Arguments:* None


**Description**


Field coordinates specify independent variables (e.g. spatial or temporal coordinates) upon which
   the field depends.  For example, the voltage level above might be a function of time, so time is
   the field coordinate.  If the user has field coordinates to read, they need to specify
   ``read_field_coordinates``.  The field coordinates will then be read from a file named
   response_descriptor.coords, where response_descriptor is the user-provided descriptor for the
   field response.  The number of columns in the coords file should be equal to the number of field coordinates.