OpenMaXwell Reference Manual

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2D points    3D Objects    3D Points    Boundary    Cursor position    Data for selected object    Domain    Expansion    Field    Field components    Field formula    Field tubes    Function    Generate expansions along 2D boundary    Generate expansions for 3D objects    Grid formula    Grid transformation    Info and movie directives    Insert    Integral    Modify 2D expansions    MMP    Movie    Open GL window    PET basis    PFD (predefined FD)    Project     Space, plane, arrow, or point    Tools and draw    Transformation data    Window

Generate expansions for 3D objects Dialog

This dialog is opened when you press the 3D object… button in the Generate expansions group of the Expansion dialog.

When you press the Generate !! button, OpenMaXwell will generate a set of 3D expansions for the 3D object specified in the Object box. When Object is 0, it will generate expansions for all objects. Note that the expansions are generated according to the parameters that are specified in the 3D Objects dialog. You may either create a set of N standard 3D multipoles for each 2D multipole associated with the 3D object or a single distributed 3D multipole. The number N is selected in the Max. multipoles box of the 3D Objects dialog. Distributed 3D multipole expansions are generated when N is 0. For N<0, 0<M<1–N standard 3D multipoles are generated. The number M is evaluated from geometrical data of the 3D object.

Degree fact. is a factor that affects the maximum degree of distributed 3D multipoles to be generated. Standard value is 1. Increase this factor when you want to increase/decrease the accuracy of the distributed multipole evaluation. Note that this will also increase/decrease the computation time. When you set Degree fact. equal to 0, the number of  the maximum degree of corresponding 2D multipole will be used. Note that this number is obsolete for 2D multipole computations, but you may be define it in the 3D->Max. deg. m box of the Expansion dialog.

The new expansions obtain the color number specified in the New color box. If this number is negative, the color of the 3D object will be used.

When the Delete previously generated expansions box is checked, all expansions of the current 3D object will be deleted before the new ones are generated.

Press the Close button to close the dialog without generating any 3D expansion.

Responsible for this web page:  Ch. Hafner, Computational Optics Group, IEF, ETH, 8092 Zurich, Switzerland