Function Description

The intersect operation obtains the common part of two or multiple objects. By performing the intersect operation on the common area of two or more objects of the same geometry type, a new object is created. The common area of multiple objects is retained, and the rest is deleted. Note that the intersect operation is not supported between lines.

• If the pairwise intersection of polygons participating in the object operation is not empty, then after the intersect operation, a simple object consisting of the pairwise intersection parts will be generated.

  Before Intersect	After Intersect

• If the pairwise intersection of polygons participating in the object operation is empty, then after the intersect operation, all source objects will be deleted, and no new object will be generated.

  As shown in the figure above, the pairwise intersection of the polygons participating in the operation is empty, and the source objects will be deleted after the intersect operation.

• Explanation of the attributes of the generated new object. In the attribute dialog, you need to set which object's attributes to retain and what operation to perform on the field values. For a description of the object intersect property processing dialog and its parameters, please refer to Property Processing Dialog Description.
• In CAD layers, after polygon objects, rectangles, circle objects, and oblique ellipse objects participate in the operation, the type of the generated new object is a polygon object.
• Cross-layer intersect. The selected objects in other layers will all be intersected with the objects in the current editable layer. After the operation, only the objects in the current editable layer change, and objects in other layers do not change. For multi-layer editing, the intersect operation is performed on the objects in the specified editable layer.

Function Entry

• Edit Data tab -> Object Editing group -> Face Editing -> Face Relationship -> Intersect

Operation Instructions

1. In the editable state of the layer, select two or multiple objects.
2. Through the above entry, click the Intersect button to open the Intersect dialog.
3. In the dialog, set the objects to be retained. For a description of the object intersect property processing dialog and its parameters, please refer to Property Processing Dialog Description.