gloss-1.6.0.1: Painless 2D vector graphics, animations and simulations.

Graphics.Gloss.Data.Picture

Contents

Aliases for Picture constructors
Loading Bitmaps
Miscellaneous
Rectangles

Description

Data types for representing pictures.

Synopsis

Documentation

type Point = (Float, Float)Source

A point on the x-y plane. Points can also be treated as Vectors, so Graphics.Gloss.Data.Vector may also be useful.

type Vector = Point Source

A vector can be treated as a point, and vis-versa.

type Path = [Point]Source

A path through the x-y plane.

data Picture Source

A 2D picture

Constructors

Blank	A blank picture, with nothing in it.
Polygon Path	A convex polygon filled with a solid color.
Line Path	A line along an arbitrary path.
Circle Float	A circle with the given radius.
ThickCircle Float Float	A circle with the given thickness and radius. If the thickness is 0 then this is equivalent to `Circle`.
Text String	Some text to draw with a vector font.
Bitmap Int Int BitmapData Bool	A bitmap image with a width, height and a Vector holding the 32 bit RGBA bitmap data. The boolean flag controls whether Gloss should cache the data between frames for speed. If you are programatically generating the image for each frame then use `False`. If you have loaded it from a file then use `True`.
Color Color Picture	A picture drawn with this color.
Translate Float Float Picture	A picture translated by the given x and y coordinates.
Rotate Float Picture	A picture rotated by the given angle (in degrees).
Scale Float Float Picture	A picture scaled by the given x and y factors.
Pictures [Picture]	A picture consisting of several others.

Instances

Eq Picture
Show Picture
Monoid Picture

data BitmapData Source

Abstract bitmap data.

Instances

Eq BitmapData
Show BitmapData

Aliases for Picture constructors

blank :: Picture Source

polygon :: Path -> Picture Source

line :: Path -> Picture Source

circle :: Float -> Picture Source

thickCircle :: Float -> Float -> Picture Source

text :: String -> Picture Source

bitmap :: Int -> Int -> BitmapData -> Bool -> Picture Source

color :: Color -> Picture -> Picture Source

translate :: Float -> Float -> Picture -> Picture Source

rotate :: Float -> Picture -> Picture Source

scale :: Float -> Float -> Picture -> Picture Source

pictures :: [Picture] -> Picture Source

Loading Bitmaps

bitmapOfForeignPtr :: Int -> Int -> ForeignPtr Word8 -> Bool -> Picture Source

O(1). Use a ForeignPtr of RGBA data as a bitmap.

bitmapOfByteString :: Int -> Int -> ByteString -> Bool -> Picture Source

O(size). Copy a ByteString of RGBA data into a bitmap.

bitmapOfBMP :: BMP -> Picture Source

O(size). Copy a BMP file into a bitmap.

loadBMP :: FilePath -> IO Picture Source

Load an uncompressed 24 or 32bit RGBA BMP file as a bitmap.

Miscellaneous

lineLoop :: Path -> Picture Source

A closed loop along this path.

circleSolid :: Float -> Picture Source

A solid circle with the given radius.

Rectangles

rectanglePath :: Float -> Float -> Path Source

A path representing a rectangle centered about the origin, with the given width and height.

rectangleWire :: Float -> Float -> Picture Source

A wireframe rectangle centered about the origin, with the given width and height.

rectangleSolid :: Float -> Float -> Picture Source

A solid rectangle centered about the origin, with the given width and height.

rectangleUpperPath :: Float -> Float -> Path Source

A path representing a rectangle in the y > 0 half of the x-y plane, with the given width and height

rectangleUpperWire :: Float -> Float -> Picture Source

A wireframe rectangle in the y > 0 half of the x-y plane, with the given width and height.

rectangleUpperSolid :: Float -> Float -> Picture Source

A solid rectangle in the y > 0 half of the x-y plane, with the given width and height.