ELSE directive

Introduces the default set of statements in block-if or in multiple-selection control structures.

No options or parameters

Description

The use of ELSE in block-if structures is explained in the description of the IF directive. Its use in multiple-selection control structures is explained in the description of CASE.

Options: none.

Parameters: none.

See also

Directives: CASE, OR, ENDCASE, IF, ELSIF, ENDIF, EXIT.

Commands for: Program control.

Example

" Example 1:6.5.1 "
" Get location of image file for use by IMPORT "
SCALAR    _chan
OPEN      '%GENDIR%/Examples/GuidePart1/CapeWagtail.jpg'; _chan; FILE=input
ENQUIRE   CHANNEL=_chan; FILE=in; NAME=file
CLOSE     _chan; FILE=input
IMPORT    [PRINT=*; RGBMETHOD=matrix] file; COLUMNS='RGB'
" resize the window to match the dimensions of the bit map "
CALCULATE Nr = NROWS(RGB)
&         Nc = NCOLUMNS(RGB)
IF Nr < Nc
  FRAME   3; YUPPER=Nr/Nc
ELSE
  FRAME   3; XUPPER=Nc/Nr
ENDIF
DBITMAP   [WINDOW=3] RGB