@huukhanhnguyen/model / nodeMethods/sun

nodeMethods/sun#

sunDirection()#

sunDirection(site, moment): [number, number, number]

Unit vector TOWARD the sun in model space (Z-up, +Y = project north before northAngle). This is what resolveEnvironment turns settings.environment into (document/environment.ts); project a silhouette along its negation for a shadow range. Below the horizon the vector simply has z < 0 — the caller decides whether a night study means "no shadows".

Parameters#

site#

Site

moment#

SunMoment

Returns#

[number, number, number]

sunPosition()#

sunPosition(site, moment): { altitudeDegrees: number; azimuthDegrees: number; }

Altitude/azimuth of the sun (degrees). Azimuth is the compass bearing of the sun measured from true north, clockwise (90 = east, 180 = south).

Parameters#

site#

Site

moment#

SunMoment

Returns#

{ altitudeDegrees: number; azimuthDegrees: number; }

altitudeDegrees#

altitudeDegrees: number

azimuthDegrees#

azimuthDegrees: number