1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
-- File: MakeHyperbola.cdl
-- Created: Mon Sep 28 11:49:29 1992
-- Author: Remi GILET
-- <reg@sdsun2>
---Copyright: Matra Datavision 1992
class MakeHyperbola from GCE2d inherits Root from GCE2d
---Purpose :This class implements the following algorithms used to
-- create Hyperbola from Geom2d.
-- * Create an Hyperbola from two apex and the center.
-- Defines the main branch of an hyperbola.
-- The parameterization range is ]-infinite,+infinite[
-- It is possible to get the other branch and the two conjugate
-- branches of the main branch.
--
-- ^YAxis
-- |
-- FirstConjugateBranch
-- |
-- Other | Main
-- --------------------- C ------------------------------>XAxis
-- Branch | Branch
-- |
-- SecondConjugateBranch
-- |
--
-- The major radius is the distance between the Location point
-- of the hyperbola C and the apex of the main Branch (or the
-- Other branch). The major axis is the "XAxis".
-- The minor radius is the distance between the Location point
-- of the hyperbola C and the apex of the First (or Second)
-- Conjugate branch. The minor axis is the "YAxis".
-- The major radius can be lower than the minor radius.
uses Pnt2d from gp,
Hypr from gp,
Hypr2d from gp,
Ax2d from gp,
Ax22d from gp,
Hyperbola from Geom2d
raises NotDone from StdFail
is
Create (H : Hypr2d from gp) returns MakeHyperbola;
--- Purpose :
-- Creates an Hyperbola from a non persistent one from package gp
Create (MajorAxis : Ax2d from gp ;
MajorRadius : Real from Standard;
MinorRadius : Real from Standard;
Sense : Boolean from Standard) returns MakeHyperbola;
--- Purpose :
-- MajorAxis is the "XAxis" of the hyperbola.
-- The major radius of the hyperbola is on this "XAxis" and
-- the minor radius is on the "YAxis" of the hyperbola.
-- The status is "NegativeRadius" if MajorRadius < 0.0 or if
-- MinorRadius < 0.0
Create (Axis : Ax22d from gp ;
MajorRadius : Real from Standard;
MinorRadius : Real from Standard) returns MakeHyperbola;
--- Purpose :
-- Axis is the local coordinate system of the hyperbola.
-- The major radius of the hyperbola is on this "XAxis" and
-- the minor radius is on the "YAxis" of the hyperbola.
-- The status is "NegativeRadius" if MajorRadius < 0.0 or if
-- MinorRadius < 0.0
Create(S1,S2 : Pnt2d from gp;
Center : Pnt2d from gp) returns MakeHyperbola;
---Purpose: Creates a hyperbol centered on the origin of the coordinate system
-- Axis, with major and minor radii MajorRadius and
-- MinorRadius, where the major axis is the "X Axis"
-- of Axis (Axis is the local coordinate system of the hyperbola).
-- The implicit orientation of the ellipse is:
-- - the sense defined by Axis or H,
-- - the sense defined by points Center, S1 and S2,
-- - the trigonometric sense if Sense is not given or is true, or
-- - the opposite sense if Sense is false.
-- Warning
-- If an error occurs (that is, when IsDone returns
-- false), the Status function returns:
-- - gce_NegativeRadius if MajorRadius or
-- MinorRadius is less than 0.0, or
-- - gce_InvertAxis if the major radius defined by
-- Center and S1 is less than the minor radius
-- defined by Center, S1 and S2.Make an Hyperbola with its center and two apexes.
Value(me) returns Hyperbola from Geom2d
raises NotDone
is static;
---C++: return const&
---Purpose: Returns the constructed hyperbola.
-- Exceptions: StdFail_NotDone if no hyperbola is constructed.
Operator(me) returns Hyperbola from Geom2d
is static;
---C++: return const&
---C++: alias "Standard_EXPORT operator Handle_Geom2d_Hyperbola() const;"
fields
TheHyperbola : Hyperbola from Geom2d;
--The solution from Geom2d.
end MakeHyperbola;
|
