In the drawing process sometimes need to select the same or similar objects for the same operation, or by selecting all the blocks with the same name to count the number of blocks or to delete this block at once.CAD provides a variety of ways to select the same or similar drawings and blocks, the choice of that method depends on the drawings of the **** the same! attribute is what, some methods are very simple, but not necessarily once you need to select the graphics, some methods can set up a variety of filter conditions, but the operation is relatively complex.
The following is a brief description of several methods provided by CAD, you can decide which method to use according to the actual situation.
First, select similar objects (SELECTSIMILIAR)
When an object is selected, the right-click menu will provide similar objects and all unselected options. Select Similar Objects can be used to select objects of the same type and blocks with the same name. For example, in the following figure, I want to select all the circles in the figure, I only select a circle, and then in the right-click menu, select "Select Similar Objects", you can select all the circles on the same layer.
Two, quick selection (QSELECT)
Quick selection can be set by some conditions, quickly from the figure will meet the conditions of all the graphics are selected.
The quick selection of the command is Qselect, you can also point to the characteristics of the panel in the upper right corner of the quick selection of the button directly call this command. When the dialog box opens, you can set the application range, object type, parameters and parameter values for filtering, and the application method.
Three, the object selection filter (FILTER)
The object selection filter is somewhat similar to the Quick Select, the difference is: the object selection filter can be set up at a time more than one condition, and you can click the "Add Selected Objects" button to pick up the object in the figure to get the conditions, and then the excess conditions will be selected and then deleted. conditions, and then delete the excess conditions after selection; set the filter can be saved, the next selection can be used again, as shown in the following figure.