.TH wxGraphicsMatrix 3erl "wx 2.4.1" "wxWidgets team." "Erlang Module Definition"
.SH NAME
wxGraphicsMatrix \- Functions for wxGraphicsMatrix class
.SH DESCRIPTION
.LP
A \fIwxGraphicsMatrix\fR\& is a native representation of an affine matrix\&. The contents are specific and private to the respective renderer\&. Instances are ref counted and can therefore be assigned as usual\&. The only way to get a valid instance is via \fIwxGraphicsContext:createMatrix/2\fR\& or \fIwxGraphicsRenderer:createMatrix/2\fR\&\&.
.LP
This class is derived (and can use functions) from: \fIwxGraphicsObject\fR\&
.LP
wxWidgets docs: wxGraphicsMatrix
.SH DATA TYPES
.nf

\fBwxGraphicsMatrix()\fR\& = wx:wx_object()
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.fi
.SH EXPORTS
.LP
.nf

.B
concat(This, T) -> ok
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.fi
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.RS
.LP
Types:

.RS 3
This = T = wxGraphicsMatrix()
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.RE
.RE
.RS
.LP
Concatenates the matrix passed with the current matrix\&.
.LP
The effect of the resulting transformation is to first apply the transformation in \fIt\fR\& to the coordinates and then apply the transformation in the current matrix to the coordinates\&.
.RE

.LP
.nf

.B
get(This) -> Result
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.fi
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.RS
.LP
Types:

.RS 3
Result = 
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    {A :: number(),
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     B :: number(),
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     C :: number(),
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     D :: number(),
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     Tx :: number(),
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     Ty :: number()}
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This = wxGraphicsMatrix()
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.RE
.RE
.RS
.LP
Returns the component values of the matrix via the argument pointers\&.
.RE

.LP
.nf

.B
invert(This) -> ok
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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.RE
.RE
.RS
.LP
Inverts the matrix\&.
.RE

.LP
.nf

.B
isEqual(This, T) -> boolean()
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.fi
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.RS
.LP
Types:

.RS 3
This = T = wxGraphicsMatrix()
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.RE
.RE
.RS
.LP
Returns true if the elements of the transformation matrix are equal\&.
.RE

.LP
.nf

.B
isIdentity(This) -> boolean()
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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.RE
.RE
.RS
.LP
Return true if this is the identity matrix\&.
.RE

.LP
.nf

.B
rotate(This, Angle) -> ok
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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Angle = number()
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.RE
.RE
.RS
.LP
Rotates this matrix clockwise (in radians)\&.
.RE

.LP
.nf

.B
scale(This, XScale, YScale) -> ok
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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XScale = YScale = number()
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.RE
.RE
.RS
.LP
Scales this matrix\&.
.RE

.LP
.nf

.B
translate(This, Dx, Dy) -> ok
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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Dx = Dy = number()
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.RE
.RE
.RS
.LP
Translates this matrix\&.
.RE

.LP
.nf

.B
set(This) -> ok
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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.RE
.RE
.LP
.nf

.B
set(This, Options :: [Option]) -> ok
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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Option = 
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    {a, number()} |
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    {b, number()} |
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    {c, number()} |
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    {d, number()} |
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    {tx, number()} |
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    {ty, number()}
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.RE
.RE
.RS
.LP
Sets the matrix to the respective values (default values are the identity matrix)\&.
.RE

.LP
.nf

.B
transformPoint(This) -> {X :: number(), Y :: number()}
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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.RE
.RE
.RS
.LP
Applies this matrix to a point\&.
.RE

.LP
.nf

.B
transformDistance(This) -> {Dx :: number(), Dy :: number()}
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.fi
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.RS
.LP
Types:

.RS 3
This = wxGraphicsMatrix()
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.RE
.RE
.RS
.LP
Applies this matrix to a distance (ie\&.
.LP
performs all transforms except translations)\&.
.RE