Gravity Field

The GravityField spatial database is a specialized spatial database for specifying gravitational body forces. It specifies the direction and gravitational acceleration with reasonable default values.

Pyre User Interface

See GravityField component.

Examples

We specify the gravitational field to be in the -y direction for a 2D Cartesian coordinate system. The defaults provide a gravitation field for a 3D Cartesian coordinate system.

C++

Listing 17 Creating a GravityField in C++.

spatialdata::spatialdb::GravityField gravity;
gravityField.setGravityDir(0.0, -1.0, 0.0);

Python

Python applications should use the Pyre framework for creating the CompositeDB. We show how to do it programatically in Python for completeness.

Listing 18 Creating GravityField using Python.

from spatialdata.spatialdb.GravityField import GravityField

gravity = GravityField()
gravity.gravityDir = [0.0, -1.0, 0.0]
gravity._configure()