hmatrix-0.2.0.0: Linear algebra and numerical computationsSource codeContentsIndex
Graphics.Plot
Portabilityuses gnuplot and ImageMagick
Stabilityprovisional
MaintainerAlberto Ruiz (aruiz at um dot es)
Description
Very basic (and provisional) drawing tools using gnuplot and imageMagick.
Synopsis
mplot :: [Vector Double] -> IO ()
plot :: [Vector Double -> Vector Double] -> (Double, Double) -> Int -> IO ()
parametricPlot :: (Vector Double -> (Vector Double, Vector Double)) -> (Double, Double) -> Int -> IO ()
splot :: (Matrix Double -> Matrix Double -> Matrix Double) -> (Double, Double) -> (Double, Double) -> Int -> IO ()
mesh :: Matrix Double -> IO ()
mesh' :: Matrix Double -> IO ()
meshdom :: Vector Double -> Vector Double -> (Matrix Double, Matrix Double)
matrixToPGM :: Matrix Double -> String
imshow :: Matrix Double -> IO ()
gnuplotX :: String -> IO ()
Documentation
mplot :: [Vector Double] -> IO ()Source
plots several vectors against the first one
plot :: [Vector Double -> Vector Double] -> (Double, Double) -> Int -> IO ()Source

Draws a list of functions over a desired range and with a desired number of points

 > plot [sin, cos, sin.(3*)] (0,2*pi) 1000
parametricPlot :: (Vector Double -> (Vector Double, Vector Double)) -> (Double, Double) -> Int -> IO ()Source

Draws a parametric curve. For instance, to draw a spiral we can do something like:

 > parametricPlot (\t->(t * sin t, t * cos t)) (0,10*pi) 1000
splot :: (Matrix Double -> Matrix Double -> Matrix Double) -> (Double, Double) -> (Double, Double) -> Int -> IO ()Source

Draws the surface represented by the function f in the desired ranges and number of points, internally using mesh.

 > let f x y = cos (x + y) 
 > splot f (0,pi) (0,2*pi) 50    
mesh :: Matrix Double -> IO ()Source

Draws a 3D surface representation of a real matrix.

 > mesh (hilb 20)

In certain versions you can interactively rotate the graphic using the mouse.

mesh' :: Matrix Double -> IO ()Source
meshdom :: Vector Double -> Vector Double -> (Matrix Double, Matrix Double)Source
From vectors x and y, it generates a pair of matrices to be used as x and y arguments for matrix functions.
matrixToPGM :: Matrix Double -> StringSource
writes a matrix to pgm image file
imshow :: Matrix Double -> IO ()Source
imshow shows a representation of a matrix as a gray level image using ImageMagick's display.
gnuplotX :: String -> IO ()Source
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