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- *********************** RANDOM COPY ********************
- THERE ARE THREE DIFFERENT WINDOWS WITH WHICH GEOMETRY CAN BE
- COPIED AND COPIES PLACED IN A RANDOM FASHION. COMPLETELY
- CONTAINED (CC), PARTIALLY CONTAINED (PC), & CUTTING WINDOW
- (CUT). THE SUBMENUS OF ALL THREE RANDOM COPY FUNCTIONS ARE
- THE SAME. TO DEMONSTRATE RANDOM COPY LET'S DRAW A RECTANGLE.
- <end>
- PRESS "1" FOR THE MAIN MENU.
- SELECT "RANDOM C.C." FROM THE MAIN MENU.
- <end>
- THIS FUNCTION COPIES VECTORS USING A COMPLETELY CONTAINED
- WINDOW.
- \
- ACTIVATE CURSOR TWICE TO ENCOMPASS THE RECTANGLE IN
- A WHITE WINDOW.
- <end>
- ALL FOUR VECTORS OF THE RECTANGLE ARE IN THE WINDOW.
- ACTIVATE CURSOR TO CREATE A HANDLE.
- <end>
- ACTIVATE CURSOR AT A NEW LOCATION TO INSERT THE COPY.
- <end>
- TO MAKE ANOTHER COPY, MOVE, THEN ACTIVATE CURSOR .
- <end>
- LET US CREATE AN ARROW USING THE "RANDOM C.C." COPY.
- <end>
- BELOW APPEARS THE RIGHT HALF OF AN ARROW. LET US COMPLETELY
- CONTAIN ALL FOUR LINES & MAKE COPIES USING AN ARBITRARY
- HANDLE POINT.
- <end>
- NOW LET US DEMONSTRATE THE IMPORTANCE OF THE HANDLE POINT.
- \
- RESELECT THE FOUR LINES & SELECT THE TIP OF THE ARROW AS
- IT'S HANDLE POINT.
- <end>
- NOW CHOOSE THE YELLOW SUBMENU FUNCTION "MIR Y" TO MAKE A
- MIRROR COPY OF THE HALF-ARROW ABOUT THE VERTICAL AXIS.
- THIS POINT IS ALSO THE HANDLE POINT.
- <end>
- *********************** IMPORTANT **********************
- \
- SELECTING A SUBMENU FUNCTION INSERTS A WHITE BAR OVER IT.
- <end>
- SELECT THE TIP OF THE ARROW TO INSERT THE MIRRORED COPY.
- <end>
- PRESS "." TO UNSELECT THE HALF-ARROW.
- <end>
- NOW DRAW A WINDOW AROUND THE ARROW.
- <end>
- SELECT THE HANDLE AT IT'S UPPER TIP.
- <end>
- SELECT THE RED SUBMENU "-90". THIS CAUSES THE SUBSEQUENT
- COPIES OF THE ARROW TO ROTATE 90 DEGREES CLOCKWISE.
- <end>
- ACTIVATE CURSOR TO INSERT A ROTATED COPY ON THE SCREEN.
- <end>
- ********************* END OF LESSON ********************
- <end>