Scan P3

Drives the Zeiss P Series stereoplotters along user-defined scan lines for XYZ profiling. During scanning, the operator keeps the floating mark on the ground and points are stored by distance and/or elevation change. The speed the instrument travels is determined by the speed knob.

Key-in	Description	Range
LAY=	Layer for scan lines	1-10,001
SHIFT=	Scan line shift width	Ground units
MINDIST=	Minimum recording distance	Ground units
DELTAZ	Delta Z recording distance	Ground units
ZCON=	Z control	0 = Footdisk 1 = Right handwheel 2 = P3 Y tablet motion
BEEP=	Beep when a point is stored?	0=No 1=Yes

Once the first scan line has been defined, multiple scan lines may be read based on its start point and azimuth. The shift width defines the distance between scan lines. The Move+ and Move- buttons in the Begin Scan menu move the scan start point by this distance.

Defines the distance along the scan line to store points during scanning. The resulting distance may not be exact depending on the speed of the stereoplotter. This parameter should be slightly smaller than the stereoplotter's specification to ensure a sufficient number of points. The batch routine Grid Lines (GriLin) may be used to place precisely spaced points on existing lines.

Specifies delta elevation at which to store points during scanning. Depending on the speed of the stereoplotter, the distance may not be precise. This parameter should be slightly smaller than stereoplotter specification to ensure a sufficient number of points. Setting this parameter to zero will turn off Delta Z point collection.

Defines the location of Z motion during scanning. Options are Footdisk, Handwheel and P3 Y Tablet motion. If the P3 Y Tablet motion is selected, a positive y P-Cursor movement will lower the elevation and a negative y P-Cursor movement will raise the elevation.

Specifies whether to emit the Vr Normal Beep wave sound each time a point is stored during scanning. The Normal Beep sound may be configured in the Vr Configuration program (VrCfig).

	Button	Description
1	Dig scan pt1	Digitizes the location of the start of the first scan line.
2	Enter coord	Enter the coordinate of the end of the first scan line.
3
4
5
6
7	Params	Enter parameters.
8
9
*
0	Toggle Snap	Toggles snap.
#	End	Ends ScanP3.

	Button	Description
1	Dig scan pt2	Digitizes the location of end of the first scan line.
2	Enter coord	Enter the coordinate of the end of the first scan line.
3	Enter azi/dist	Computes the end of the first scan line from an azimuth and distance from the start on the scan line.
4
5
6
7	Params	Enter parameters.
8
9
*
0	Toggle Snap	Toggles snap.
#	End	Returns to the previous menu.

	Button	Description
1	Start scan	Starts scanning the current line.
2	Move+	Moves to the next positive direction scan line.
3	Move-	Moves to the next negative direction scan line.
4	Drive to start	Drives to the start of the current scan line.
5	Drive to end	Drives to the end of the current scan line.
6
7	Params	Enters parameters.
8
9
*
0	Toggle Snap	Toggles snap.
#	End	Returns to the previous menu.

	Button	Description
1	Force point	Forces a point onto the scan line at the current location.
2	End	Ends the current scan line.
3
4
5
6
7
8
9
*
0
#	End	Ends the current scan line.

	Button	Description
1	Accept scan	Accepts the current scan line and stores the line.
2	Reject scan	Rejects the current scan line.
3
4
5
6
7
8
9
*
0
#	End	Returns to the main menu.