2011

Table Of Contents
Control How Overlapping Objects Are Displayed . . . . . . . . . 383
Control the Display of Objects . . . . . . . . . . . . . . . . . . 385
Chapter 15
Use Precision Tools . . . . . . . . . . . . . . . . . . . . . . . . 387
Use Coordinates and Coordinate Systems (UCS) . . . . . . . . . . . . 387
Overview of Coordinate Entry . . . . . . . . . . . . . . . . . . . 387
Enter 2D Coordinates . . . . . . . . . . . . . . . . . . . . . . . 390
Enter 3D Coordinates . . . . . . . . . . . . . . . . . . . . . . . 394
Understand the User Coordinate System (UCS) . . . . . . . . . . 399
Control the Display of the User Coordinate System Icon . . . . . 404
Use Dynamic Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
Snap to Locations on Objects (Object Snaps) . . . . . . . . . . . . . . 412
Use Object Snaps . . . . . . . . . . . . . . . . . . . . . . . . . . 413
The Object Snap Menu . . . . . . . . . . . . . . . . . . . . . . 415
Set Visual Aids for Object Snaps (AutoSnap) . . . . . . . . . . . 416
Override Object Snap Settings . . . . . . . . . . . . . . . . . . . 418
Restrict Cursor Movement . . . . . . . . . . . . . . . . . . . . . . . . 420
Adjust Grid and Grid Snap . . . . . . . . . . . . . . . . . . . . . 420
Use Orthogonal Locking (Ortho Mode) . . . . . . . . . . . . . . 427
Use Polar Tracking and PolarSnap . . . . . . . . . . . . . . . . . 428
Lock an Angle for One Point (Angle) . . . . . . . . . . . . . . . 432
Combine or Offset Points and Coordinates . . . . . . . . . . . . . . . 433
Combine Coordinate Values (Coordinate Filters) . . . . . . . . . 433
Track to Points on Objects (Object Snap Tracking) . . . . . . . . 435
Track to Offset Point Locations (Tracking) . . . . . . . . . . . . 439
Specify Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
Enter Direct Distances . . . . . . . . . . . . . . . . . . . . . . . 440
Offset from Temporary Reference Points . . . . . . . . . . . . . 441
Specify Intervals on Objects . . . . . . . . . . . . . . . . . . . . 442
Extract Geometric Information from Objects . . . . . . . . . . . . . . 447
Obtain Distances, Angles, and Point Locations . . . . . . . . . . 447
Obtain Area and Mass Properties Information . . . . . . . . . . 448
Use a Calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454
Use the QuickCalc Calculator . . . . . . . . . . . . . . . . . . . 454
Use the Command Prompt Calculator . . . . . . . . . . . . . . 469
Chapter 16
Draw Geometric Objects . . . . . . . . . . . . . . . . . . . . . 473
Draw Linear Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . 473
Draw Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 473
Draw Polylines . . . . . . . . . . . . . . . . . . . . . . . . . . . 475
Draw Rectangles and Polygons . . . . . . . . . . . . . . . . . . 480
Draw Double Lines . . . . . . . . . . . . . . . . . . . . . . . . . 483
Draw Freehand Sketches . . . . . . . . . . . . . . . . . . . . . . 488
Draw Curved Objects . . . . . . . . . . . . . . . . . . . . . . . . . . 489
Draw Arcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489
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