The Gravity Sandbox v1

Editable geometry with topography and gravity

Elevation is positive upward. Drag vertices without allowing self intersections. Control body density and surrounding rock density. Gravity is computed along the surface using a discretized mass summation.

Controls

The body stays below the surface. Crossing edges are rejected.

Ready

Topography type Flat Hill in the center Hill on one side Two hills on both sides Topography roughness Relief amplitude (m)

Body density rho body (kg/m3) Surrounding rock density rho bg (kg/m3) Gravity plot Anomaly demeaned Absolute g

Body shape preset Dike rising from depth Horizontal lens Circle Gravity resolution Fast Medium Fine

Vertices 0

Area 0

Self intersect No

Quality OK

The blue band is gravity along the surface in mGal. The black curve is topography as elevation upward.

Applied property	Value	Meaning