OpenMaXwell Reference Manual

Home  General  Menues  Dialogs  Movie Directives  Formula Interpreter  File Structures

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

OpenGL window Dialog

Select Open GL… from the Tools menu to open this dialog. Note that the settings in this dialog become effective when you select reset to initial view from the OpenGL dialog. The OpenGL dialog pops up when you press the right mouse button while the cursor is within the OpenGL window.

Axes

In the Axes group you may specify the Color number, Width, and Length of the X, Y, and Z axis of the global coordinate system within the OpenGL window.

Grid lines

In the Grid lines group you may specify the Color number and Width of the X, Y, and Z grid lines within the OpenGL window. Note that grid lines are drawn on the surface of 3D objects. The Z grid line corresponds to the iso-lines.

Initial look from at

In the Initial look from at group you may specify the X, Y, and Z coordinates of the point from where you look and of the point at which you look.

Perspective

In the Perspective group you may specify the (vertical) View angle in degrees, the Aspect ratio, the distance of the eye from the Near plane, and the distance of the eye from the Far plane. Note that only objects between the near plane and the far plane are drawn. The Aspect ratio is defined as (vertical view angle)/(horizontal view angle).

Important note: Depending on the OpenGL driver, the OpenGL hiding procedure may be affected by the location of the Near plane. When you observe improper hiding in the OpenGL window, try to modify the value in the Near plane box. Good hiding performance should be obtained when in the order of 1% of the size of the object drawn in the OpenGL window.

Expansions

In the Expansions group you may specify the size of the markers of MMP expansions.

Animations

In the Animations group you may specify how AVI movies are generated within the  OpenGL Graphics window. If the number of Frames is zero, the standard OpenMaXwell movie directives are used for generating the movie. Otherwise, a movie with as many frames as specified in the Frames box will be generated. For each frame the phase angle (in degrees) of time-harmonic field will be increased by the value specified in the Delta box. In this case, the movie directives are ignored.

Initial window size

In the Initial window size group you may specify the initial Height and Width of the  OpenGL Graphics window.

Defaults

Press the Defaults button to let OpenMaXwell compute default values from the view plane defined in the Field dialog and from the data of the current graphic window defined in the Window dialog.

Read OpenGL window data

Press the Field Tubes… button to open the corresponding dialog.

Write OpenGL window data

Press the Write… button to write OpenGL window data to a file. A file name dialog will allow you to select a file to write to.

Open the filed tubes dialog

Press the Write… button to write OpenGL window data to a file. A file name dialog will allow you to select a file to write to.

Close the dialog

Press the OK button to close the dialog.

 

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

Last update 17.02.2014