Points on Arc

This feature allows you to create points along an arc. The first point is set at a distance measured along the arc starting at the PC.

Enter PC point or pick a C&G Curve: enter or pick the PC point  or pick a C&G curve.
If you picked a C&G Curve, the PC, Radius point, Pt point and arc length will be displayed at the command line.  After picking a C&G Curve, skip the next 2 steps.
Enter PT point:  Enter or pick the PT point.
Enter radius point [cLockwise/ccW]: For a clockwise curve either type L or ’+’ and <Enter> then pick or type a point ID or type a point ID preceded by a ’+’. For a counter clockwise curve either type a W or a ‘-’ and  <Enter> then pick or type a point ID or type a point ID preceded by a ’-’ .
Enter arc length [Occupy/Multiple points] <0.000000>:
Occupy option
In occupy mode the points are located along the arc with the arc length being measured from the previous point.  Thus the occupied point moves ahead to the last computed point as calculations proceed. When you type O and <Enter> the prompt becomes:
Enter arc length [do not Occupy/Multiple points] <0.000000>:
Specify the arc length at the prompt.
A point will be created and you will be prompted for the next arc length. Continue entering arc lengths until done then press <Esc> to return to the Enter PC point or pick a C&G Curve: prompt.
Multiple points option
This option allows you to compute multiple points along the arc at a given distance.  The specified distance is used to set as many points along the arc as will fit between the PC and the PT.  When you type M and <Enter> the prompt becomes:
Enter arc length [do not Occupy/Single point] <0.000000>:
Specify the arc length at the prompt.
A as many points as can be fit between the PC and the PT will be created. You will then be prompted for the next arc length. Continue entering arc lengths until done then press <Esc> to return to the Enter PC point or pick a C&G Curve: prompt.
At the Enter PC point or pick a C&G Curve: prompt you can continue specifying curves or you can press <Esc> to end the command.

Prompts

Enter PC point or pick a C&G Curve: Enter a point ID or pick a point symbol or a C&G Arc on the screen.  Press Esc to end the command.
Enter PT point:  Enter or pick the PT point.
Enter radius point [cLockwise/ccW]: For a clockwise curve either type "L" (or a plus sign (’+’)) and <Enter> then pick or type a point ID or type a point ID preceded by a ’+’. For a counter clockwise curve either type a "W" (or a minus sign (‘-’)) and  <Enter> then pick or type a point ID or type a point ID preceded by a ’-’ .
Enter arc length [Occupy/Multiple points] <0.000000>: Enter an arc length to create a single point on the arc.  Enter "O" and Enter to "occupy" the calculated point so the next arc length is calculated from that point instead of the PC.  Enter "M" and Enter to calculate multiple points along the arc at a specified distance.
Enter arc length [do not Occupy/Single point] <0.000000>:  For multiple points enter the desired arc length or change input mode.

Pulldown Menu Location: CG-Survey > Cogo > Curves
Keyboard Command: cg_poa
Prerequiste:  coordinate file