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- *********** CUT & ERASE BETWEEN TWO POINTS *************
- \
- THIS FUNCTION CUTS A LINE SEGMENT BETWEEN TWO OTHER POINTS.
- \
- LET US DRAW SOME INTERSECTING LINES.
- <end>
- PRESS "1" FOR THE MAIN MENU.
- SELECT "BETWEEN 2P" FROM THE MAIN MENU.
- <end>
- ACTIVATE CURSOR OVER THE PORTION OF THE YELLOW HORIZONTAL
- LINE THAT IS BETWEEN THE TWO VERTICAL LINES.
- <end>
- THE ENTIRE LINE IS HIGHLIGHTED & TWO SQUARES DELIMIT THE
- PORTION OF THE LINE THAT WILL BE ERASED. ACTIVATE CURSOR
- ANYWHERE ON THE SCREEN TO CONFIRM ERASURE. "." TO ABORT.
- WE WILL ERASE THAT SEGMENT CREATING TWO SMALLER LINES.
- <end>
- NOW OBSERVE AS MORE LINE SEGMENTS ARE SELECTED & ERASED.
- <end>
- NOW NOTICE HOW IT RECOGNIZES INTERSECTIONS WITH GROUPS.
- <end>
- NOW RESELECT "BETWEEN 2P" FROM MAIN MENU. OBSERVE.
- <end>
- ********************* END OF LESSON *******************
- <end>