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The copying permission statements at the beginning of source files updated to refer to LGPL. Copyright dates extended till 2014 in advance.
90 lines
3.4 KiB
Plaintext
90 lines
3.4 KiB
Plaintext
-- Created on: 1993-01-11
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-- Created by: CKY / Contract Toubro-Larsen ( Niraj RANGWALA )
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-- Copyright (c) 1993-1999 Matra Datavision
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-- Copyright (c) 1999-2014 OPEN CASCADE SAS
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--
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-- This file is part of Open CASCADE Technology software library.
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--
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-- This library is free software; you can redistribute it and / or modify it
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-- under the terms of the GNU Lesser General Public version 2.1 as published
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-- by the Free Software Foundation, with special exception defined in the file
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-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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-- distribution for complete text of the license and disclaimer of any warranty.
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--
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-- Alternatively, this file may be used under the terms of Open CASCADE
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-- commercial license or contractual agreement.
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class LineFontDefPattern from IGESGraph inherits LineFontEntity
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---Purpose : defines IGESLineFontDefPattern, Type <304> Form <2>
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-- in package IGESGraph
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--
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-- Line Font may be defined by repetition of a basic pattern
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-- of visible-blank(or, on-off) segments superimposed on
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-- a line or a curve. The line or curve is then displayed
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-- according to the basic pattern.
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uses
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IGESEntity from IGESData,
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HAsciiString from TCollection,
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HArray1OfReal from TColStd
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raises OutOfRange
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is
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Create returns mutable LineFontDefPattern;
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-- Specific Methods pertaining to class
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Init (me : mutable;
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allSegLength : HArray1OfReal;
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aPattern : HAsciiString);
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---Purpose : This method is used to set the fields of the class
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-- LineFontDefPattern
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-- - allSegLength : Containing lengths of respective segments
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-- - aPattern : HAsciiString indicating visible-blank segments
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NbSegments (me) returns Integer;
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---Purpose : returns the number of segments in the visible-blank pattern
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Length (me; Index : Integer) returns Real
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raises OutOfRange;
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---Purpose : returns the Length of Index'th segment of the basic pattern
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-- raises exception if Index <= 0 or Index > NbSegments
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DisplayPattern (me) returns HAsciiString from TCollection;
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---Purpose : returns the string indicating which segments of the basic
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-- pattern are visible and which are blanked.
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-- e.g:
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-- theNbSegments = 5 and if Bit Pattern = 10110, which means that
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-- segments 2, 3 and 5 are visible, whereas segments 1 and 4 are
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-- blank. The method returns "2H16" as the HAsciiString.
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-- Note: The bits are right justified. (16h = 10110)
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IsVisible (me; Index : Integer) returns Boolean;
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---Purpose : The Display Pattern is decrypted to
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-- return True if the Index'th basic pattern is Visible,
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-- False otherwise.
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-- If Index > NbSegments or Index <= 0 then return value is
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-- False.
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fields
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--
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-- Class : IGESGraph_LineFontDefPattern
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--
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-- Purpose : Declaration of the variables specific to Line Font Patterns.
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--
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-- Reminder : A Line Font Pattern is defined by :
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-- - Length of each Segment
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-- - Visible-Blank Pattern Bitmap
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--
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theSegmentLengths : HArray1OfReal;
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theDisplayPattern : HAsciiString;
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end LineFontDefPattern;
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