Projections, Slices, Bands

CALL HBPRO (ID,VMX)

Action: Books the projections of a 2-dimensional histogram as two 1-dimensional histograms.

Input parameters:

ID

identifier of an existing 2-dimensional histogram
ID=0 means book projections for all existing 2-dimensional histograms.

VMX

upper limit of single channel content.

Remark:

• if ID does not exist, or is a 1-dimensional histogram, the call does nothing
• see HBOOK1 for details about VMX
• booking of projections can be executed only after the 2-dimensional histogram with identifier ID has been booked.

CALL HBPROY (ID,VMX)

Action: Books projection onto X or Y only. See HBPRO for more details.

CALL HBANDX (ID,YMI,YMA,VMX)

Action: Books a projection onto X, restricted to the Y interval (YMI,YMA).

Input parameters:

ID

identifier of an existing 2-dimensional histogram

YMI

lower limit of Y interval

YMA

upper limit of Y interval

VMX

maximum value to be stored in 1 channel.

The same remarks as for HBPRO apply.

CALL HBANDY (ID,XMI,XMA,VMX)

Action: As HBANDX but the projection is onto Y.

CALL HBSLIX (ID,NSLI,VMX)

Action: Books slices along Y of 2-dimensional histograms as NSLI 1-dimensional histograms.
Each slice is a projection onto X restricted to an interval along the Y axis.

Input parameters:

ID

identifier of an existing 2-dimensional histogram

NSLI

number of slices

VMX

maximum value to be stored in 1 channel.

The same remarks as for HBPRO apply.

CALL HBSLIY (ID,NSLI,VMX)

Action: As HBSLIX but slices are projected onto Y.