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Software Design Center
HOW TO DRAW NASSI-SHNEIDERMAN DIAGRAMS (cont'd)
If you flip your triangle to create its mirror image, the text entry properties will not work properly. Instead, create the triangle's mirror image from scratch as well.
Once the triangles are complete, position them on top of a rectangle and select Create Combination Object under the Arrange menu (Don't group your pieces together because then you won't be able to add or edit text.)
Create a combination object from the two triangles and the rectangle
Even after the shapes are combined, you can still adjust color and text alignment as you see fit. A good rule of thumb to follow is to set the rectangle's text alignment to center-top and to set the two triangle's to center-center.
Recommended alignment for the base rectangle
Recommended alignment for the two triangles
Once you have a decision symbol, stretch and shrink it to fit your table. For fine adjustments in size, hold down the SHIFT key while stretching the object with the arrow keys.
Stretch the symbol to fit your table
Once stretched, carefully nudge the symbol into place using the arrow keys.
