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fDesc[0] = "CATT-Acoustic-For room acoustics prediction and auralization: mono, stereo, binaural and B-format.Real time walkthrough auralization via the CATT-Walker&trade; module.<br /> The hall geometry is described using a structured hierarchic text format created manually, via AutoCAD or other CAD plugins:<br /> * INCLUDE statements enables a hierarchical structure with hall parts defined in separate files<br /> * expressions/math functions (e.g. sin(), cos())<br /> * local and global symbolic numerical constants (e.g. GLOBAL ceil_height = stage_height 10 )<br /> * symbolic string constants (e.g. LOCAL wup = &quot;wall of unknown plaster&quot;) e.g. shortcut names<br /> * interactive input of constants with limit check (e.g. GETLOCAL h = 8 INFO = &quot;Ceiling height in meter&quot; MIN = 5 MAX = 18)<br /> * tracing and break statements (SAY, RETURN, BREAK, DEBUG, DEBUGON, DEBUGOFF)<br /> * if-then-else statements for geometry variants<br /> IF balcony THEN<br /> ... balcony planes<br /> ELSE (optional)<br /> ... other planes<br /> ENDIF<br /> * comments<br /> * tools for surface corner locking and object rotation, translation and copying etc. (e.g. lock(), cut(), x(), y(), z(), OBJECT, ROTATE, TRANSLATE, COPY)<br /> * mirroring of symmetrical (or nearly symmetrical) models (MIRROR)<br /> * optional hiding of invisible edges<br /> * one-step generation of circular coordinates and similar using the loop() function ( e.g. loop(500,a,0,315,45,2*cos(a),2*sin(a),3) )<br /> * plane loops to create e.g. circular shapes with one command<br /> * double-sided planes with one command";

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