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Circle, Height, Vertex Half-angle Example 2

The figure above shows the definition of the same cone, except that this statement shows the use of a point (PT1) to define the vertex direction.

$$
$$  Declarations
$$
    ENTITY/PT1,CR1,CN1
$$
$$ Geometry Definition
$$
    PT1=POINT/0,0
    CR1=CIRCLE/0,0,.5,1
$$
$$ Cone Definition
$$
    CN1=CONE/CR1,PT1,1,ANGLE,30

Cone Generated from an Arc, Using a Point in Place of a Positional Modifier