AUTOCAD 2007 >> 04. How to Understand Coordinate System in 3D Model

To make sure that you work in 3D model, please change your model drawing area with 3D modeling
Command : Vpoint
Current view direction: VIEWDIR=0.0000,0.0000,1.0000
Specify a view point or [Rotate] : 1,1,1
Regenerating model.

1. Cartesius CoordinateCommand : X, Y, ZExample :Command : lineLINE Specify first point: 1,2,4Specify next point or [Undo] : Specify next point or [Undo]: 3,2,6
2. Polar CoordinateCommand : @X < degree (x,y) < degree (z) : heightExample :Command :line Line Specify first point : 1,2,4specify next point or [Undo] : @5<120<60

3. Vector Coordinate
Command : @dX, dY, dZ
Example :
Command :line
Line Specify first point : 1,2,4
specify next point or [Undo] : @5,8,6

4. Other
Command: line
LINE Specify first point: 2,2,0
Specify next point or [Undo]: 4,6,0
Specify next point or [Undo]:
Command: line
LINE Specify first point:
Specify next point or [Undo]: .xy
of 4,6
(need Z): 2

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