PCMW

Computes a velocity vector.

Format

PCMW [keywords]

Keywords

Color=	graphics color level of the plotted wind flags (default=3)
GLOck=	YES	locks the current graphics frame
	NO	does not lock the frame (default)
Size=	relative size of the plotted wind flags (default=12)

Remarks

PCMW calculates velocity vectors by making point-to-point measurements as opposed to correlation tracking. Use the LB or LS command to properly set the loop bounds before running the PCMW command. The maximum number of frames in the loop is 10. Use keyword GLOCK to lock the current graphics frame for PCMW output.

The cursor expands and the color changes as a visual queue indicating that half of a vector measurement was made.

Units of u, v and SPD are in meters per second on the text frame and knots on the graphics frame.

Examples

PCMW

This entry computes velocity vectors using the cursor center for locations.

PCMW COLOR=2

This entry starts the local mode of PCMW and plots wind flags in graphics color level 2.

PCMW COLOR=1 GLOCK=YES SIZE=15

This entry plots 15-pixel wind flags in graphics color level 1. All wind flags are plotted on the current graphics frame.