CLIP: Difference between revisions

From QB64 Phoenix Edition Wiki
Jump to navigation Jump to search
No edit summary
No edit summary
Line 37: Line 37:
{{Cl|IF...THEN|IF}} sel = 4 {{Cl|THEN}} {{Cl|PUT (graphics statement)|PUT}} (-10, 10), mypic(0), {{Cl|_CLIP}} PSET, 4 ' doesn't draw red pixels
{{Cl|IF...THEN|IF}} sel = 4 {{Cl|THEN}} {{Cl|PUT (graphics statement)|PUT}} (-10, 10), mypic(0), {{Cl|_CLIP}} PSET, 4 ' doesn't draw red pixels


{{Cl|END}}  
{{Cl|END}}
{{CodeEnd}}
{{CodeEnd}}



Revision as of 01:14, 23 January 2023

The _CLIP option is used in a QB64 graphics PUT to allow placement of an image partially off of the screen.


Syntax

PUT [[[STEP]]](column, row), image_array(start)[, _CLIP] [{XOR|PSET|AND|OR|PRESET}][, omitcolor]


Description

  • _CLIP should be placed immediately before the PUT action if used. XOR is default when not used.
  • The offscreen portions of the image will be the omit color.
  • GET can get portions of the images off screen in QB64.


Examples

Example: Placing an image partially or fully offscreen.

DIM mypic(500)
SCREEN 13

CLS
CIRCLE (10,10),10
GET (0,0)-(20,20), mypic(0)

PRINT "This program puts an image off screen."
PRINT "Select which option you'd like to try."
PRINT "1 will produce an illegal function call."
PRINT "1 is putting without _CLIP."
PRINT "2 is putting with _CLIP PSET."
PRINT "3 is putting with _CLIP XOR."
PRINT "4 is putting with _CLIP PSET, 4."

INPUT sel
IF sel = 1 THEN PUT (-10, 10), mypic(0), PSET ' this causes an illegal function call
IF sel = 2 THEN PUT (-10, 10), mypic(0), _CLIP PSET ' allows graphic to be drawn off-screen
IF sel = 3 THEN PUT (-10, 10), mypic(0), _CLIP ' uses the default PUT XOR operation
IF sel = 4 THEN PUT (-10, 10), mypic(0), _CLIP PSET, 4 ' doesn't draw red pixels

END


See also



Navigation:
Main Page with Articles and Tutorials
Keyword Reference - Alphabetical
Keyword Reference - By usage
Report a broken link