thread

type ANSIButtress struct {
	// D is the thread nominal diameter.
	D float64
	// P is the thread pitch.
	P float64
}

type Acme struct {
	// D is the thread nominal diameter.
	D float64
	// P is the thread pitch.
	P float64
}

type BoltParms struct {
	Thread      Threader
	Style       NutStyle // head style "hex" or "knurl"
	Tolerance   float64  // subtract from external thread radius
	TotalLength float64  // threaded length + shank length
	ShankLength float64  // non threaded length
}

type ISO struct {
	// D is the thread nominal diameter [mm].
	D float64
	// P is the thread pitch [mm].
	P float64
	// Is external or internal thread. Ext set to true means external thread.
	Ext bool
}

type KnurlParams struct {
	Length float64 // length of cylinder
	Radius float64 // radius of cylinder
	Pitch  float64 // knurl pitch
	Height float64 // knurl height
	Theta  float64 // knurl helix angle
	// contains filtered or unexported fields
}

type NPT struct {
	// D is the thread nominal diameter.
	D float64
	// threads per inch. 1.0/TPI gives pitch.
	TPI float64
	// Flat-to-flat hex distance.
	// Can be set by SetFromNominal with a standard value.
	F2F float64
}

type NutParms struct {
	Thread    Threader
	Style     NutStyle
	Tolerance float64 // add to internal thread radius
}

type NutStyle int

type Parameters struct {
	Name   string  // name of screw thread
	Radius float64 // nominal major radius of screw
	Pitch  float64 // thread to thread distance of screw
	Starts int     // number of threads
	Taper  float64 // thread taper (radians)
	HexF2F float64 // hex head flat to flat distance
}

type PlasticButtress struct {
	// D is the thread nominal diameter.
	D float64
	// P is the thread pitch.
	P float64
}

type ScrewParameters struct {
	Length float64
	Taper  float64
}

type Threader interface {
	Thread() (sdf.SDF2, error)
	ThreadParams() Parameters
}

type UTS struct {
	D   float64
	TPI float64
	// External or internal thread.
	Ext bool
}