b311480e |
1 | -- Created on: 1994-01-10 |
2 | -- Created by: Yves FRICAUD |
3 | -- Copyright (c) 1994-1999 Matra Datavision |
4 | -- Copyright (c) 1999-2012 OPEN CASCADE SAS |
5 | -- |
6 | -- The content of this file is subject to the Open CASCADE Technology Public |
7 | -- License Version 6.5 (the "License"). You may not use the content of this file |
8 | -- except in compliance with the License. Please obtain a copy of the License |
9 | -- at http://www.opencascade.org and read it completely before using this file. |
10 | -- |
11 | -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
12 | -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
13 | -- |
14 | -- The Original Code and all software distributed under the License is |
15 | -- distributed on an "AS IS" basis, without warranty of any kind, and the |
16 | -- Initial Developer hereby disclaims all such warranties, including without |
17 | -- limitation, any warranties of merchantability, fitness for a particular |
18 | -- purpose or non-infringement. Please see the License for the specific terms |
19 | -- and conditions governing the rights and limitations under the License. |
20 | |
7fd59977 |
21 | |
22 | |
23 | class BisecPC from Bisector |
24 | |
25 | inherits |
26 | |
27 | Curve from Bisector |
28 | ---Purpose: Provides the bisector between a point and a curve. |
29 | -- the curvature on the curve has to be monoton. |
30 | -- the point can't be on the curve exept at the extremitys. |
31 | -- |
32 | |
33 | uses |
34 | Shape from GeomAbs, |
35 | CurveType from GeomAbs, |
36 | Curve from Geom2d, |
37 | Geometry from Geom2d, |
38 | Pnt2d from gp, |
39 | Vec2d from gp, |
40 | SequenceOfReal from TColStd, |
41 | Trsf2d from gp |
42 | |
43 | |
44 | raises DomainError from Standard, |
45 | RangeError from Standard |
46 | is |
47 | |
48 | Create returns mutable BisecPC; |
49 | |
50 | Create (Cu : Curve from Geom2d; |
51 | P : Pnt2d from gp ; |
52 | Side : Real ; |
53 | DistMax : Real = 500 ) |
54 | |
55 | ---Purpose: Constructs the bisector between the point <P> and |
56 | -- the curve <Cu>. |
57 | -- <Side> = 1. if the bisector curve is on the Left of <Cu> |
58 | -- else <Side> = -1. |
59 | -- <DistMax> is used to trim the bisector.The distance |
60 | -- between the points of the bisector and <Cu> is smaller |
61 | -- than <DistMax>. |
62 | -- |
63 | returns mutable BisecPC from Bisector; |
64 | |
65 | Create (Cu : Curve from Geom2d; |
66 | P : Pnt2d from gp ; |
67 | Side : Real ; |
68 | UMin : Real ; |
69 | UMax : Real ) |
70 | |
71 | ---Purpose: Constructs the bisector between the point <P> and |
72 | -- the curve <Cu> Trimmed by <UMin> and <UMax> |
73 | -- <Side> = 1. if the bisector curve is on the Left of <Cu> |
74 | -- else <Side> = -1. |
75 | -- Warning: the bisector is supposed all over defined between |
76 | -- <UMin> and <UMax>. |
77 | |
78 | returns mutable BisecPC from Bisector; |
79 | |
80 | Perform (me : mutable ; |
81 | Cu : Curve from Geom2d; |
82 | P : Pnt2d from gp ; |
83 | Side : Real ; |
84 | DistMax : Real = 500 ) |
85 | |
86 | ---Purpose: Construct the bisector between the point <P> and |
87 | -- the curve <Cu>. |
88 | -- <Side> = 1. if the bisector curve is on the Left of <Cu> |
89 | -- else <Side> = -1. |
90 | -- <DistMax> is used to trim the bisector.The distance |
91 | -- between the points of the bisector and <Cu> is smaller |
92 | -- than <DistMax>. |
93 | |
94 | is static; |
95 | |
96 | |
97 | |
98 | IsExtendAtStart (me) returns Boolean from Standard |
99 | ---Purpose: Returns True if the bisector is extended at start. |
100 | is static; |
101 | |
102 | IsExtendAtEnd (me) returns Boolean from Standard |
103 | ---Purpose: Returns True if the bisector is extended at end. |
104 | is static; |
105 | |
106 | Reverse (me : mutable) |
107 | --- Purpose : |
108 | -- Changes the direction of parametrization of <me>. |
109 | -- The orientation of the curve is modified. If the curve |
110 | -- is bounded the StartPoint of the initial curve becomes the |
111 | -- EndPoint of the reversed curve and the EndPoint of the initial |
112 | -- curve becomes the StartPoint of the reversed curve. |
113 | is static; |
114 | |
115 | ReversedParameter(me; U : Real) returns Real |
116 | ---Purpose: Returns the parameter on the reversed curve for |
117 | -- the point of parameter U on <me>. |
118 | is static; |
119 | |
120 | Copy (me) returns mutable like me |
121 | is static; |
122 | |
123 | Transform (me : mutable; T : Trsf2d) |
124 | --- Purpose : |
125 | -- Transformation of a geometric object. This tansformation |
126 | -- can be a translation, a rotation, a symmetry, a scaling |
127 | -- or a complex transformation obtained by combination of |
128 | -- the previous elementaries transformations. |
129 | is static; |
130 | |
131 | IsCN (me; N : Integer) returns Boolean |
132 | --- Purpose : Returns the order of continuity of the curve. |
133 | raises RangeError |
134 | --- Purpose : Raised if N < 0. |
135 | is static; |
136 | |
137 | FirstParameter(me) returns Real |
138 | --- Purpose : Value of the first parameter. |
139 | is static; |
140 | |
141 | LastParameter(me) returns Real |
142 | --- Purpose : Value of the last parameter. |
143 | is static; |
144 | |
145 | Continuity(me) returns Shape from GeomAbs |
146 | is static; |
147 | |
148 | NbIntervals(me ) returns Integer |
149 | ---Purpose: If necessary, breaks the curve in intervals of |
150 | -- continuity <C1>. And returns the number of |
151 | -- intervals. |
152 | is static; |
153 | |
154 | IntervalFirst(me ; Index : Integer from Standard ) returns Real |
155 | ---Purpose: Returns the first parameter of the current |
156 | -- interval. |
157 | is static; |
158 | |
159 | IntervalLast (me ; Index : Integer from Standard ) returns Real |
160 | ---Purpose: Returns the last parameter of the current |
161 | -- interval. |
162 | is static; |
163 | |
164 | IntervalContinuity(me) returns Shape from GeomAbs |
165 | is static; |
166 | |
167 | IsClosed(me) returns Boolean |
168 | is static; |
169 | |
170 | IsPeriodic(me) returns Boolean |
171 | is static; |
172 | |
173 | Values (me ; |
174 | U : Real ; |
175 | N : Integer ; |
176 | P : in out Pnt2d ; |
177 | V1 : in out Vec2d ; |
178 | V2 : in out Vec2d ; |
179 | V3 : in out Vec2d ) |
180 | is static private; |
181 | |
182 | Distance (me; U : Real) returns Real |
183 | ---Purpose: Returns the distance between the point of |
184 | -- parameter U on <me> and my point or my curve. |
185 | is static; |
186 | |
187 | D0 (me; U : Real; P : out Pnt2d) |
188 | is static; |
189 | |
190 | D1 (me; U : Real; P : out Pnt2d from gp ; V : out Vec2d from gp) |
191 | is static ; |
192 | |
193 | D2 (me; U : Real; P : out Pnt2d from gp; V1, V2 : out Vec2d from gp) |
194 | is static; |
195 | |
196 | D3 (me; U : Real; P : out Pnt2d from gp; V1, V2, V3 : out Vec2d from gp) |
197 | is static; |
198 | |
199 | DN (me; U : Real; N : Integer) |
200 | returns Vec2d from gp |
201 | is static; |
202 | |
203 | Dump (me; Deep : Integer = 0; Offset : Integer = 0) is static; |
204 | |
205 | LinkBisCurve (me ; U : Real) returns Real from Standard |
206 | ---Purpose: Returns the parameter on the curve1 of the projection |
207 | -- of the point of parameter U on <me>. |
208 | is static; |
209 | |
210 | LinkCurveBis (me ; U : Real) returns Real from Standard |
211 | ---Purpose: Returns the reciproque of LinkBisCurve. |
212 | is static; |
213 | |
214 | Extension (me ; |
215 | U : Real ; |
216 | P : in out Pnt2d ; |
217 | V1 : in out Vec2d ; |
218 | V2 : in out Vec2d ; |
219 | V3 : in out Vec2d ) |
220 | is static private; |
221 | |
222 | Parameter ( me ; P : Pnt2d from gp) returns Real |
223 | ---Purpose: Returns the parameter on <me> corresponding to <P>. |
224 | is static; |
225 | |
226 | IsEmpty (me) returns Boolean from Standard |
227 | ---Purpose: Returns <True> if the bisector is empty. |
228 | is static; |
229 | |
230 | ComputeIntervals (me : mutable) |
231 | ---Purpose: Computes the interval where the bisector is defined. |
232 | is static private; |
233 | |
234 | CuspFilter (me : mutable) |
235 | is static private; |
236 | |
237 | SearchBound( me ; U1,U2 : Real) returns Real |
238 | is static private; |
239 | |
240 | Init (me : mutable; |
241 | Curve : Curve from Geom2d; |
242 | Point : Pnt2d from gp; |
243 | Sign : Real from Standard; |
244 | StartIntervals : SequenceOfReal from TColStd; |
245 | EndIntervals : SequenceOfReal from TColStd; |
246 | BisInterval : Integer from Standard; |
247 | CurrentInterval: Integer from Standard; |
248 | ShiftParameter : Real from Standard; |
249 | DistMax : Real from Standard; |
250 | IsEmpty : Boolean from Standard; |
251 | IsConvex : Boolean from Standard; |
252 | ExtensionStart : Boolean from Standard; |
253 | ExtensionEnd : Boolean from Standard; |
254 | PointStartBis : Pnt2d from gp; |
255 | PointEndBis : Pnt2d from gp) |
256 | is static private; |
257 | |
258 | fields |
259 | |
260 | curve : Curve from Geom2d; |
261 | point : Pnt2d from gp; |
262 | sign : Real from Standard; |
263 | startIntervals : SequenceOfReal from TColStd; |
264 | endIntervals : SequenceOfReal from TColStd; |
265 | bisInterval : Integer from Standard; |
266 | currentInterval: Integer from Standard; |
267 | shiftParameter : Real from Standard; |
268 | distMax : Real from Standard; |
269 | isEmpty : Boolean from Standard; |
270 | isConvex : Boolean from Standard; |
271 | extensionStart : Boolean from Standard; |
272 | extensionEnd : Boolean from Standard; |
273 | pointStartBis : Pnt2d from gp; |
274 | pointEndBis : Pnt2d from gp; |
275 | |
276 | end BisecPC; |