wxGraphicsMatrix - Functions for wxGraphicsMatrix class
Please see following description for synopsis
wxGraphicsMatrix(3) Erlang Module Definition wxGraphicsMatrix(3)
NAME
wxGraphicsMatrix - Functions for wxGraphicsMatrix class
DESCRIPTION
A wxGraphicsMatrix 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 wxGraphicsContext:createMatrix/2 or
wxGraphicsRenderer:createMatrix/2.
This class is derived (and can use functions) from: wxGraphicsObject
wxWidgets docs: wxGraphicsMatrix
DATA TYPES
wxGraphicsMatrix() = wx:wx_object()
EXPORTS
concat(This, T) -> ok
Types:
This = T = wxGraphicsMatrix()
Concatenates the matrix passed with the current matrix.
The effect of the resulting transformation is to first apply the
transformation in t to the coordinates and then apply the trans-
formation in the current matrix to the coordinates.
get(This) -> Result
Types:
Result =
{A :: number(),
B :: number(),
C :: number(),
D :: number(),
Tx :: number(),
Ty :: number()}
This = wxGraphicsMatrix()
Returns the component values of the matrix via the argument
pointers.
invert(This) -> ok
Types:
This = wxGraphicsMatrix()
Inverts the matrix.
isEqual(This, T) -> boolean()
Types:
This = T = wxGraphicsMatrix()
Returns true if the elements of the transformation matrix are
equal.
isIdentity(This) -> boolean()
Types:
This = wxGraphicsMatrix()
Return true if this is the identity matrix.
rotate(This, Angle) -> ok
Types:
This = wxGraphicsMatrix()
Angle = number()
Rotates this matrix clockwise (in radians).
scale(This, XScale, YScale) -> ok
Types:
This = wxGraphicsMatrix()
XScale = YScale = number()
Scales this matrix.
translate(This, Dx, Dy) -> ok
Types:
This = wxGraphicsMatrix()
Dx = Dy = number()
Translates this matrix.
set(This) -> ok
Types:
This = wxGraphicsMatrix()
set(This, Options :: [Option]) -> ok
Types:
This = wxGraphicsMatrix()
Option =
{a, number()} |
{b, number()} |
{c, number()} |
{d, number()} |
{tx, number()} |
{ty, number()}
Sets the matrix to the respective values (default values are the
identity matrix).
transformPoint(This) -> {X :: number(), Y :: number()}
Types:
This = wxGraphicsMatrix()
Applies this matrix to a point.
transformDistance(This) -> {Dx :: number(), Dy :: number()}
Types:
This = wxGraphicsMatrix()
Applies this matrix to a distance (ie.
performs all transforms except translations).
wxWidgets team. wx 2.1.1 wxGraphicsMatrix(3)