Graphics.Gloss.Data.Picture
Description
Data types for representing pictures.
- type Point = (Float, Float)
- type Vector = Point
- type Path = [Point]
- data Picture
- blank :: Picture
- polygon :: Path -> Picture
- line :: Path -> Picture
- circle :: Float -> Picture
- thickCircle :: Float -> Float -> Picture
- text :: String -> Picture
- bitmap :: Int -> Int -> ByteString -> Bool -> Picture
- color :: Color -> Picture -> Picture
- translate :: Float -> Float -> Picture -> Picture
- rotate :: Float -> Picture -> Picture
- scale :: Float -> Float -> Picture -> Picture
- pictures :: [Picture] -> Picture
- loadBMP :: FilePath -> IO Picture
- lineLoop :: Path -> Picture
- circleSolid :: Float -> Picture
- rectanglePath :: Float -> Float -> Path
- rectangleWire :: Float -> Float -> Picture
- rectangleSolid :: Float -> Float -> Picture
- rectangleUpperPath :: Float -> Float -> Path
- rectangleUpperWire :: Float -> Float -> Picture
- rectangleUpperSolid :: Float -> Float -> Picture
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.
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 |
| Text String | Some text to draw with a vector font. |
| Bitmap Int Int ByteString Bool | A bitmap image with a width, height and a ByteString 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
|
| 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. |
Aliases for Picture constructors
thickCircle :: Float -> Float -> PictureSource
Miscellaneous
loadBMP :: FilePath -> IO PictureSource
An IO action that loads a BMP format file from the given path, and produces a picture.
circleSolid :: Float -> PictureSource
A solid circle with the given radius.
Rectangles
rectanglePath :: Float -> Float -> PathSource
A path representing a rectangle centered about the origin, with the given width and height.
rectangleWire :: Float -> Float -> PictureSource
A wireframe rectangle centered about the origin, with the given width and height.
rectangleSolid :: Float -> Float -> PictureSource
A solid rectangle centered about the origin, with the given width and height.
rectangleUpperPath :: Float -> Float -> PathSource
A path representing a rectangle in the y > 0 half of the x-y plane, with the given width and height
rectangleUpperWire :: Float -> Float -> PictureSource
A wireframe rectangle in the y > 0 half of the x-y plane, with the given width and height.
rectangleUpperSolid :: Float -> Float -> PictureSource
A solid rectangle in the y > 0 half of the x-y plane, with the given width and height.