Plant primitives
SPHERESEGMENT
Creates Plant's SPHERESEGMENT using the native R, P and Q meanings from the Autodesk primitive contract.
- Where to find it
- Home > Primitives > Plant primitives > SPHERESEGMENT
- When to use it
- Spherical caps/segments that should retain Plant's SPHERESEGMENT parameters
On this page
Step by step
- Pick the insertion point at the lower segment-face centre.
- Set sphere radius R.
- Set segment height P; ordinary placement keeps Q centred automatically.
- Use Parameter Graph when you need an explicit off-centre Q.
Parameters
SPHERESEGMENT(s, R, P, Q): R is sphere radius, P is segment height and Q is the height where the segment starts from the sphere centre. The base point is the centre of the lower segment face.
Placement
To avoid the native P=Q=0 full-sphere preview, ordinary R -> P placement seeds a temporary nonzero P during radius acquisition while keeping Q at its documented/default value 0. The P stage then grows the segment from the equatorial lower face; Q remains independently editable in Parameter Graph after placement.
OSNAP
Non-degenerate lower/upper segment circles expose centre/quadrant references.
Keep in mind
- P=Q=0 is still preserved for imported/native data as the common untrimmed/default varmain form; staged placement deliberately starts from a visible segment instead.
Documentation reviewed