From openEMS

Contents 1 CSXCAD - Continuous Structure XML 1.1 Features 1.2 CSProperties 1.3 CSPrimitives

CSXCAD - Continuous Structure XML

A C++ library to describe geometrical objects and their physical or non-physical properties.

Features

• Extensive and simple file I/O (xml-based)
• Flexible and mesh independent geometry definitions
• Rectilinear grid support and discretized property access
• Extensive Matlab interface
• Open source license (LGPLv3)

CSProperties

Properties contain the physical (e.g. material properties) and non-physical (e.g. dump-boxes) properties. Each Property can contain one or more geometrical primitives (e.g. a cube or cylinder).

Currently there are several different properties that can be used by openEMS:

physical properties:

• CSPropMaterial: Material definition (Matlab: AddMaterial)
• CSPropDiscMaterial: Discretized material definition (e.g. a virtual family model)
• CSPropMetal: Define PEC metal (Matlab: AddMetal)
• CSPropLorentzMaterial: Drude/Lorentz dispersive Material (have a look at examples/other/Metamaterial_PlaneWave_Drude.m)
• CSPropLumpedElement: Lumped elements such as resistors and capacitors

non-physical properties:

• CSPropElectrode: Define the excitation (Matlab: AddExcitation)
• CSPropProbeBox: Voltage/Currents probe definitions
• CSPropDumpBox: field dump boxes

CSPrimitives

Each primitive has to be assign to an existing property.

Currently there are several primitives defined:

• CSPrimPoint: A point defined by its coordinates (Matlab: AddPoint)
• CSPrimBox: A rectangular cube, plane, line or point defined by its lower-left-bottom and upper-right-top edge (Matlab: AddBox)
• CSPrimCylinder: A cylinder is defined by its axis and radius (Matlab: AddCylinder)
• CSPrimCylindricalShell: A cylinder with a given shell width (Matlab: AddCylindricalShell)
• CSPrimSphere: A sphere is defined by its center and radius (Matlab: AddSphere)
• CSPrimSphericalShell: A sphere with a given shell width (Matlab: AddSphericalShell)
• CSPrimCurve: A 1D curved line (Matlab: AddCurve)
• CSPrimWire: A curve with a finite radius (Matlab: AddWire)
• CSPrimPoly: A 2D polygon (Matlab: AddPolygon)
• CSPrimLinPoly: An extruded 2D polygon (Matlab: AddLinPoly)