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A very important rule in CAD you must understand is:
“All objects are drawn full size”
In other words, if you want to draw a line 20 feet long, you actually draw it 20 feet long. If the line is 1/8” long, you actually draw it 1/8” long.
Drawing and Plotting objects that are very large or very small.
What if you wanted to draw a house? Could you print it to scale on an 8-1/2 × 11 piece of paper? How about a small paper clip. Could you make it big enough to dimension? Let’s start with the house.
How to print an entire house on an 8-1/2 × 11 sheet of paper.
Remember the photo and picture frame example I suggested on page 2-4. This time try to picture yourself standing at the front door of your house with an empty picture frame in your hands. Look at your house through the picture frame. Of course the house is way too big to fit in the frame. Or is it because you are standing too close to the house?
Now walk across the street and look through the picture frame in your hands again. Does the house appear smaller? Can you see all of it in the frame? If you could walk far enough away from the house it would eventually appear small enough to fit in the picture frame in your hands. But....the house did not actually change size, did it? It only appears smaller because you and the picture frame are farther away from it.
Adjusting the Viewport scale.
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