Geometric Continuity

Sweep

Parameter s0.90

Speed

The join is at s = 1 on every curve. Click or drag along a curve to place the point. Arrow keys step, space plays.

Show

Tangent line Normal Osculating circle Curvature comb One-sided limits at the join Control polygons Constraint guides (G¹, G²) Curvature plots

Panels

Show or hide panels; keys 1–4 do the same. The remaining panels grow to fill the space.

Shape

Drag any control point. The matching point moves by the same amount in every panel, and each curve then corrects its other segment to keep its continuity class. Constraint guides show the lines the constrained points stay on.

Move points in all panels

G⁻¹ Discontinuous

G⁰ Positional

G¹ Tangent

G² Curvature

Environment

Source

Elevation26°

Azimuth−40°

Tilt0°

Strips1

Strip height0.40

Exposure0.00

Surfaces

Defect size1.00

Shading

Control nets Mark the join Environment behind surfaces

Panels

Show or hide panels; keys 1–4 do the same. The remaining panels grow to fill the space.

Geometric Continuity

G⁻¹ Discontinuous

G⁰ Positional

G¹ Tangent

G² Curvature

G⁻¹ Jump

G⁰ Crease

G¹ Tangent plane

G² Curvature