The GRD reader opens the input file, immediately starts reading features, and returns them to the rest of the FME for processing. The reader has no requirement for definition statements as the user-defined attributes are defined completely within the GRD file itself.
Each returned feature has its feature type set to either the layer name or the geometric type of the feature, as follows: point, line, polygon, rectangle, circle, ellipse, arc, insert, text, ink, or mspline.