UNIT-IV

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Across
  1. 2. Arc connect to each other at nodes.
  2. 6. has zero dimension and has only the property of location.
  3. 8. stores spatial features of the same geometry type.
  4. 9. where arc meet or intersect.
  5. 11. describe a type of association in which the parts cannot exist independently.
  6. 12. based model treats geospatial data as objects.
  7. 13. describe the whole part relationship between classes.
  8. 14. stores feature classes that share the same coordinate system.
  9. 16. means that an object of class can be created from an object of another class.
Down
  1. 1. is two-dimensional and has properties of area.
  2. 3. approximates the terrain with a set of nonoverlapping triangles.
  3. 4. defines the relationship between a superclass and a subclass.
  4. 5. describes an attribute or characteristic of an object.
  5. 7. data model stores geometries and attributes separately.
  6. 10. arc have direction and left and right polygons.
  7. 15. mechanism used by object based technology.