wxGraphicsMatrix(3)

okay so bestie, this is the wxGraphicsMatrix(3) page from the Erlang Module Definition manual, and it's giving native representation of an affine matrix realness 💅 no cap, we're about to break it all down.

---

🌸 NAME 🌸

• wxGraphicsMatrix — a native representation of an affine matrix. periodt.

---

🦋 DESCRIPTION 🦋

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().

---

👑 FUNCTIONS 👑

🌟 concat

       concat(This, T) -> ok
                       when This :: wxGraphicsMatrix(), 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 transformation in the current matrix to the coordinates. slay.

🌟 get

       get(This) -> Result
                    when
                        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. iconic.

🌟 invert

       invert(This) -> ok when This :: wxGraphicsMatrix().

Inverts the matrix. no cap.

🌟 isEqual

       isEqual(This, T) -> boolean()
                        when
                            This :: wxGraphicsMatrix(), T ::
       wxGraphicsMatrix().

Returns true if the elements of the transformation matrix are equal. fr fr.

🌟 isIdentity

       isIdentity(This) -> boolean() when This :: wxGraphicsMatrix().

Return true if this is the identity matrix. bestie.

🌟 rotate

       rotate(This, Angle) -> ok
                       when This :: wxGraphicsMatrix(), Angle :: number().

Rotates this matrix clockwise (in radians). 💃

🌟 scale

       scale(This, XScale, YScale) -> ok
                      when
                          This :: wxGraphicsMatrix(),
                          XScale :: number(),
                          YScale :: number().

Scales this matrix. duh.

🌟 set

       set(This, [Option]) -> ok
                    when
                        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). periodt.

🌟 transformDistance

       transformDistance(This) -> {Dx :: number(), Dy :: number()}
                                  when This :: wxGraphicsMatrix().

Applies this matrix to a distance (ie. performs all transforms except translations). it's giving non-translational realness.

🌟 transformPoint

       transformPoint(This) -> {X :: number(), Y :: number()}
                               when This :: wxGraphicsMatrix().

Applies this matrix to a point. slay.

🌟 translate

       translate(This, Dx, Dy) -> ok
                          when
                              This :: wxGraphicsMatrix(),
                              Dx :: number(),
                              Dy :: number().

Translates this matrix. 💅

---

💖 this page was brought to you by Ericsson AB, wx 2.6, and the Erlang Module Definition manual — mwah! 💖