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DCL:GRPH2:UEPACK:
Tone Fill Routines: Explanation of Subroutines
9.2.5 UESTLV
- 1.
- Function
Specifies the tone level and pattern for each level.
- 2.
- Call
CALL UESTLV(TLEV1,TLEV2,IPAT)
- 3.
- Explanation of Parameters
TLEV1 |
(R) |
The minimum level of tone fill. |
TLEV2 |
(R) |
The maximum level of tone fill. |
IPAT |
(I) |
The tone pattern index (see user's
manual for "GRPH1"). |
- 4.
- Notes
- (a)
- When you wish to fill all areas with values lower than a certain value (ZLEV),
set the value of TLEV1 to that of the internal variable
'RMISS' handled by GLpGET/GLpSET,
and set the value of TLEV2 to ZLEV. On the other hand, when
you wish to fill all areas with values larger than a certain value (ZLEV),
set the value of TLEV1 to ZLEV, and set TLEV2 to 'RMISS'.
- (b)
-
Must be TLEV1>TLEV2.
- (c)
- The number of tone levels set must be less than 100.
- (d)
- The current number of tone levels can be inquired with
CALL UEQNTL(NTON).
- (e)
- The attributes of the (ITON)th tone level can be inquired with
CALL UEQTLV(TLEV1,TLEV2,IPAT,ITON).
Copyright (C) 2000 GFD Dennou Club. All rights reserved.