Determining the properties of primitives

To determine the properties of a primitive, use the l command followed by the primitive name. The example below shows the output of the l command against a right circular cylinder:

l cyl1.s

cyl1.s: truncated general cone (TGC) V (4, 4, -25) Top (4, 4, 31) H (0, 0, 56) mag=56 H direction cosines=(90, 90, 0) H rotation angle=0, fallback angle=90 A (14, 0, 0) mag=14 B (0, 14, 0) mag=14 C (14, 0, 0) mag=14 D (0, 14, 0) mag=14 AxB direction cosines=(90, 90, 0) AxB rotation angle=90, fallback angle=90

So, the primitive values for the right circular cylinder are as follows:

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Changing the properties of a primitive object