Overview | Statement List | Example 1 | Example 2

类别选择

Synopsis

MASK/{ALL|NONE|[OMIT,],obj type list}

Description

Changes the selectable status associated with a particular object type to valid or invalid.

The MASK statement can be used to make only certain objects selectable by their object type. For example, you may want to delete all objects except lines. No matter what the lines are named (even if they are not named) they can be made non-selectable by their object type.

ENTITY/PT1,CR(2),L(3),LN1,L1
PT1=POINT/0,0
CR(1)=CIRCLE/1,1,.5
CR(2)=CIRCLE/2,2,1
LN1=LINE/0,0,1,1
L(1)=LINE/2,2,3,3
LINE/3,4,1,6
MASK/OMIT,3
DELETE/ALL

Parameters

Parameter	Description
ALL	Minor word that indicates that all of the object types in the database are valid and selectable.
NONE	Minor word that indicates that all of the object types in the database are invalid and not selectable.
OMIT	Minor word that indicates that all of the following object types in the database are invalid and not selectable. If the minor word OMIT is not used, only those object types included in the list are valid and selectable.
obj type list	A list of object types. See the following table for allowed object type values.

Object Type	Value
Point	2
Line	3
Circle	5
Conics	6
B-Curve	9
Pattern	10
Boundary	14
Groups	15
Cylindrical face	16
Conical face	17
Spherical face	18
Revolved face	19
Extruded face	20
Planar face	22
Blend face	23
Drafting Object	25
Dimension	26
Margin	29
B-Surface face	43
Coordinate System	45
Plane	46
Component	63
Offset surface face	65
Foreign surface face	66
Solid or sheet body	70
Face	71
Edge	72
Datum Axis	196
Datum Plane	197
Section Edge	199
Silhouette	201
Section Line	202

NOTE: Types 16-20, 22, 43, 65, and 66 are special cases of face (type 71). Cylindrical, conical, etc., solid and sheet bodies correspond to type 70. For example, type 16 corresponds to the cylindrical face of a solid cylinder, or the face of a cylindrical sheet body, and not to the solid (or sheet body) cylinder itself, which is type 70.