grd_type: grd_line
GRD line features represent linear features and may be either 2D or 3D. These features do not have any special attributes associated with them.
When writing lines out to GRD, all lines are written as PLINEs. The only exception is if any line to be written out has exactly two points and also has an attribute grd_vector_type with a value of LINE; in this case, a LINE is written out to GRD.
grd_type: grd_mspline
GRD multi-segmented polyline features represent an aggregate consisting of linear features, all of which are the same — either 2D or 3D. Mspline features may have the following special attribute associated with them.
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Attribute Name |
Contents |
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grd_ordered |
This indicates whether or not multiple lines are ordered. Range: 0 | 1 |