Marching Squares — 2D

Field

Threshold (isovalue): 1.00 Grid resolution: 48 Metaball count: 3 Show grid cells Show scalar-field heatmap Resolve saddle cases (5/10) Animate metaballs

Stats

Grid—

Cells—

Segments—

Isovalue—

Each grid cell's 4 corners are classified above/below the isovalue into a 4-bit index (0–15), then a lookup table gives the contour segment(s) for that case. Edge crossing points are linearly interpolated for smooth, sub-cell-accurate lines. Drag the metaballs to reshape the field in real time.

Grid: — | Segments: —