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95 lines
3.7 KiB
Plaintext
Executable File
95 lines
3.7 KiB
Plaintext
Executable File
-- 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) 1999-2012 OPEN CASCADE SAS
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--
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-- The content of this file is subject to the Open CASCADE Technology Public
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-- License Version 6.5 (the "License"). You may not use the content of this file
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-- except in compliance with the License. Please obtain a copy of the License
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-- at http://www.opencascade.org and read it completely before using this file.
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--
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-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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--
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-- The Original Code and all software distributed under the License is
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-- distributed on an "AS IS" basis, without warranty of any kind, and the
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-- Initial Developer hereby disclaims all such warranties, including without
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-- limitation, any warranties of merchantability, fitness for a particular
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-- purpose or non-infringement. Please see the License for the specific terms
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-- and conditions governing the rights and limitations under the License.
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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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