progeCAD Professional manual The low-cost alternative to AutoCAD

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Working with coordinates - Using three-dimensional coordinates

Entering cylindrical coordinates

When working in three-dimensional space, you can also use cylindrical coordinates to specify a three-dimensional point. You specify a point by entering its distance from either the origin (absolute distance) or the last point (relative distance), its angle in the xy plane, and its z-coordinate value.

In cylindrical format, you separate the distance and angle with the open angle bracket (<) and separate the angle and z value with a comma. For example, to draw a line from the last point to a point 7.4750 units away, at an angle of 27 degrees from the x-axis in the xy plane and 3 units up in the z direction, start the Line command, and then respond to the prompts as follows:

Start of line: (select point A)

Angle · Length · <Endpoint>: @7.4750<27,3
 
 
 

When you draw a line from a start point ( A ) to an endpoint ( B ) using cylindrical coordinates, you specify its length ( C , in this case 7.4750), the angle in the xy plane ( D , in this case 27 degrees), and the distance in the z direction ( E , in this case 3 units).