| .VIEW (Graphics) Statement Programming Examples. |
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 QuickSCREEN Details Example Contents Index |
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| VIEW (Graphics) Statement Programming Examples |
|
| You may use multiple VIEW statements. If the newly described viewport |
| is not wholly within the previous viewport, the screen can be |
| re-initialized with the VIEW statement and the new viewport can be |
| defined. If the new viewport is entirely within the previous one, as |
| in the following example, the intermediate VIEW statement is not |
| necessary. This example opens three viewports, each smaller than the |
| previous one. In each case, the points of the line that lie outside |
| the viewport borders are clipped and do not appear on the screen. |
| |
| SCREEN 1 |
| CLS |
| VIEW 'Make the viewport cover most of the screen. |
| VIEW (10,10) - (300,180),,1 |
| CLS |
| LINE (0,0) - (310,190),1 |
| LOCATE 1,11: PRINT "A big viewport" |
| VIEW SCREEN (50,50)-(250,150),,1 |
| CLS 'Note CLS clears only viewport. |
| LINE (300,0)-(0,199),1 |
| LOCATE 9,9: PRINT "A medium viewport" |
| VIEW SCREEN (80,80)-(200,125),,1 |
| CLS |
| CIRCLE (150,100),20,1 |
| LOCATE 11,9: PRINT "A small viewport" |
