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ObjectsPoints A / BLinePlaneSphere

Point A

A XA YA Z

Point B

B XB YB Z

Line

Line point XLine point YLine point Z

Direction XDirection YDirection Z

Plane

Normal XNormal YNormal Z

Plane constant c

n · x + c = 0

Sphere

Center XCenter YCenter Z

Sphere radius

Operation

Calculate

Display OptionsAxesGridLabelsHelpersMeasurementsIntersection result

Geometry 3D

Explore points, lines, planes and spheres in three-dimensional coordinates.

XYZ

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Finite previews of infinite lines and planes

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Anonymous

Selected Result

Line–plane intersection

(1.000, 0.000, 0.500)

Results

Distance A–B: 4.583
Midpoint A–B: (0.000, 2.000, 0.500)
Direction / normal angle: 131.810°
Point A to plane: 1.000
Line–plane intersection: (1.000, 0.000, 0.500)

Angle compares the line direction and plane normal.

Formula Info

t=-\frac{n\cdot P_0+c}{n\cdot d},\quad X=P_0+td

Abstract coordinate units. Plane convention: n·x+c=0. Angle compares line direction with plane normal; displayed in degrees. The line is infinite, not a ray.

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