This document mainly compares similar Object Editing operations.

Merging and combining

• Merging applies to face layers, CAD layers (objects of the same type), and combining applies to line layers, face layers, text layers, and CAD layers.
• Consolidation can only operate on objects of the same type to generate complex objects, while composition can operate on objects of different types to generate Compound.
• The objects involved in merging are merged into a simple object or a complex object, while the objects involved in combining are just combined into a block to become a Compound without merging.
• Merge does not operate on point objects. Combine can operate on point objects.
• During consolidation operation, Non-system Field: and field SmUserID data are processed in multiple operation modes (keep the first, null, sum and Weighted Mean); When combining operations, the Non-system Field: field SmUserID holds the corresponding attribute value of the object with the smallest SmID value among the combined objects.

Move and offset

• Move is available for all Geometry; Offset is available for simple objects and complex objects with subobjects, not for Compound in CAD layers.
• A move operation does not produce a new object, only a change in position; an offset produces a new object parallel to the shape of the source object.

Decompose and shatter

• Decomposition is applicable to line layer, surface layer, text layer and CAD layer, and explosion is applicable to line layer and CAD layer.
• The applicable object of decomposition can be complex object or Compound, and the applicable object of explosion can only be line object.
• Decomposition is to decompose the sub-objects of a complex object and the constituent objects of a Compound into a single object, while explosion is to explode the object at the node to generate a simple object.

Xor and Donut Polygon

• The Xor operation is that the common parts of the two objects are deleted and the remaining parts are merged, while the Donut Polygon is judged according to the parity of the intersecting parts of the Select objects.

See the following figure for details:

Edit the operation	Original object	Operation result
Xor
	Three simple objects	Complex object with two children
Donut Polygon
	Three simple objects	Complex object with three children