UCS
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Keyboard: UCS
Defines or modifies the current user coordinate system. You can use the UCS to create a system for entering coordinates and planes and for viewing drawings. This command defines the UCS in three-dimensional space.
- Before changing the UCS to the World Coordinate System.
- After changing the UCS to the World Coordinate System.
- Before changing the origin of the current UCS.
- After changing the origin of the current UCS.
- The new origin (0,0,0).
- Before changing the UCS to lie along a specified z-axis.
- After changing the UCS lie along a specified z-axis.
- The new z-axis.
TIP To use the Explorer to define the UCS, type EXPUCS .
? � 3point � Delete � Entity � Origin � Previous � Restore � Save � View � X�Y�Z � ZAxis � <World>: To retain the current setting, press Enter. To list all defined UCS definitions, choose ?. To define a new UCS origin and the direction of its x- and y-axes, choose 3point. To delete a saved coordinate system, choose Delete. To define a new UCS origin based on a selected entity, choose Entity. To define a new UCS origin by specifying a new point, choose Origin. To revert to the previous UCS definition, choose Previous. To restore a saved UCS, choose Restore. To save the current setting, choose Save. To define a new UCS with the x,y plane parallel to your screen, choose View. To rotate the current UCS around a specified axis, choose X, Y, or Z. To define a UCS with a particular positive z-axis, choose ZAxis.
To define a new UCS origin and the direction of its x- and y-axes
Choose 3point.
New origin <0.0000, 0.0000, 0.0000>: To accept the current setting, press Enter. To change the UCS origin, enter new values for the x,y,z coordinates or specify a point.
Point on positive X axis <1.0000,0.0000,0.0000>: To accept the current setting, press Enter. To change the positive x-axis, enter new values for the x,y,z coordinates or specify a point.
Point in X-Y plane with positive Y value <0.0000,1.0000,0.0000>: To accept the current setting, press Enter. To change the positive y-axis, enter new values for the x,y,z coordinates or specify a point. You can locate this point anywhere on the positive y of the new UCS xy plane.
To delete a UCS definition
Choose Delete.
UCS name(s) to delete, or ? for list: Enter the names of the UCS definitions you want to delete. To view a list of all UCS definitions, choose ?.
To define a new UCS by selecting an entity
You can define a new UCS by selecting an arc, circle, dimension, line, point, two-dimensional polyline, plane, or three-dimensional face entity. You can also use the insertion point of a text entity, block, external reference, or attribute definition.
Choose Entity.
Select entity for UCS definition: Select the entity you want to use to define the new UCS.
To specify a new UCS origin
Choose Origin.
Origin point <0.0000, 0.0000, 0.0000>: To accept the current setting, press Enter, or enter new values. The direction of the x-, y-, and z-axes are unchanged.
To load a saved UCS definition
Choose Restore.
UCS name to restore: Enter the name of the UCS definition you want to restore. The viewing direction in effect when the UCS was saved is not restored; the restored entities take on the current UCS.
To save a UCS definition
Choose Save.
Enter name for saving UCS, or ? for list: Enter a name for the saved UCS definition. To view a list of all saved UCS definitions, choose ?.
To rotate the current UCS around a specified axis
Choose X, Y, or Z.
Enter angle of rotation about X[Y,Z] axis <90>: Enter the angle of rotation for the specified axis.
To define a new UCS with a specified positive z axis
Choose ZAxis.
Origin point <0.0000,0.0000,0.0000>: To accept the current setting, press Enter. To change the UCS origin, enter new values for the x,y,z coordinates or specify a point.
Point on positive Z-axis <0.0000,0.0000,1.0000>: To accept the current setting, press Enter. To change the positive z-axis, enter new values for the x,y,z coordinates or specify a point.