1wxGraphicsMatrix(3)        Erlang Module Definition        wxGraphicsMatrix(3)
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NAME

6       wxGraphicsMatrix - Functions for wxGraphicsMatrix class
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DESCRIPTION

9       A  wxGraphicsMatrix is a native representation of an affine matrix. The
10       contents are specific and private to the respective renderer. Instances
11       are ref counted and can therefore be assigned as usual. The only way to
12       get a valid instance is  via  wxGraphicsContext:createMatrix/2  or  wx‐
13       GraphicsRenderer:createMatrix/2.
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15       This class is derived (and can use functions) from: wxGraphicsObject
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17       wxWidgets docs: wxGraphicsMatrix
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DATA TYPES

20       wxGraphicsMatrix() = wx:wx_object()
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EXPORTS

23       concat(This, T) -> ok
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25              Types:
26
27                 This = T = wxGraphicsMatrix()
28
29              Concatenates the matrix passed with the current matrix.
30
31              The effect of the resulting transformation is to first apply the
32              transformation in t to the coordinates and then apply the trans‐
33              formation in the current matrix to the coordinates.
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35       get(This) -> Result
36
37              Types:
38
39                 Result =
40                     {A :: number(),
41                      B :: number(),
42                      C :: number(),
43                      D :: number(),
44                      Tx :: number(),
45                      Ty :: number()}
46                 This = wxGraphicsMatrix()
47
48              Returns  the  component  values  of  the matrix via the argument
49              pointers.
50
51       invert(This) -> ok
52
53              Types:
54
55                 This = wxGraphicsMatrix()
56
57              Inverts the matrix.
58
59       isEqual(This, T) -> boolean()
60
61              Types:
62
63                 This = T = wxGraphicsMatrix()
64
65              Returns true if the elements of the  transformation  matrix  are
66              equal.
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68       isIdentity(This) -> boolean()
69
70              Types:
71
72                 This = wxGraphicsMatrix()
73
74              Return true if this is the identity matrix.
75
76       rotate(This, Angle) -> ok
77
78              Types:
79
80                 This = wxGraphicsMatrix()
81                 Angle = number()
82
83              Rotates this matrix clockwise (in radians).
84
85       scale(This, XScale, YScale) -> ok
86
87              Types:
88
89                 This = wxGraphicsMatrix()
90                 XScale = YScale = number()
91
92              Scales this matrix.
93
94       translate(This, Dx, Dy) -> ok
95
96              Types:
97
98                 This = wxGraphicsMatrix()
99                 Dx = Dy = number()
100
101              Translates this matrix.
102
103       set(This) -> ok
104
105              Types:
106
107                 This = wxGraphicsMatrix()
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109       set(This, Options :: [Option]) -> ok
110
111              Types:
112
113                 This = wxGraphicsMatrix()
114                 Option =
115                     {a, number()} |
116                     {b, number()} |
117                     {c, number()} |
118                     {d, number()} |
119                     {tx, number()} |
120                     {ty, number()}
121
122              Sets the matrix to the respective values (default values are the
123              identity matrix).
124
125       transformPoint(This) -> {X :: number(), Y :: number()}
126
127              Types:
128
129                 This = wxGraphicsMatrix()
130
131              Applies this matrix to a point.
132
133       transformDistance(This) -> {Dx :: number(), Dy :: number()}
134
135              Types:
136
137                 This = wxGraphicsMatrix()
138
139              Applies this matrix to a distance (ie.
140
141              performs all transforms except translations).
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145wxWidgets team.                    wx 2.1.4                wxGraphicsMatrix(3)