22-5. 3D Relative Cylindrical Polar Coordinates

Three-dimensional space and 3D Relative Cylindrical Polar Coordinates in AutoCAD


 3D Relative Cylindrical Polar Coordinates in AutoCAD
Cylindrical Polar Coordinates Relative to the 3D drawing based on the point at which we are currently defining a distance at an angle and height Z of the point where we are.
Command is entered on the form @distance<angle,Z after the command line you want to draw.

Note that these coordinates are similar with the Absolute difference to us in this case the starting point CURRENT.
Given that here we do not have X and Y coordinates, we have a standard starting direction EAST so we take care of it when working with these coordinates. (See Coordinate System)

Look at the picture above. To draw a starting point of a line in 3D space using Cylindrical Polar Coordinates Relative it is necessary to specify the command as follows.
  1. - Click on the Isometric button to switch to 3D view (toolbar View)
  2. - To set the point T1 is needed: a click of a button LINE (starting point T1 lines)
  3. - Type @8.5<30,5 time point T1 positioned in 3D space by elements of orders that we have set. So 8.5 is our distance from the starting point (in this case, the current point where we are and this is a T1), the angle at which we left - the direction is 30 degrees and the height Z is 5 units.
What did we do?
We were in T1. Using Cylindrical Polar Coordinates are defined Relative to our distance from T1 to be 8.5 units of angle 30 ° and height (Z) 5 units.

So the sequence of commands as follows:

Command: _line [LINE button click to draw lines, note that we are in T1]
Specify first point: @8.5<30,5 [setting up the first point T1 - distance = 8.5 angle = 30 ° and height (Z) = 5]

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