isigraph: supports graphics using the isigraph control

method: gopen'' opens a graphics window g... fns to generate graphics gshow'' show graphics

points are plotted to pixels in a box with coordinates (0,0) at top left

points should be given as a 2 element vector or 2 column matrix colors should be given as 3 numbers in range (0,255) for RGB, or as a single RGB number.

see also isigutil.ijs for various supporting utilities.

Name	Type	Description
cile	verb	x cile values of y
fitrect01	verb	fit rectangle data to 0 1
fitrect11	verb	fit rectangle data to _1 1
fit01	verb	fit data to range 0 1
fit11	verb	fit data to range _1 1
gbrush	verb	set brush color
gclear	verb	clear graphics window
gfit	verb	fit data to graphics window
glines	verb	display line connecting points
gopen	verb	open graphics window
gpen	verb	set pen color [;width,style]
gpolygon	verb	draw polygon given points
grayscale	verb	generate grayscale
grgb	verb	set color values
gscale	verb	scale from (-1,1) to (0,1000)
gshow	verb	{parent} gshow graph
hue	verb	generate color from color set
hueRGB	verb	generate color from RGB color se
polygon	verb	vertices of a regular polygon
rotate	verb	rotate angle by given amount

cile

x cile values of y
example:
   3 cile i.12

fitrect01

fit rectangle data to 0 1
form: [anisotropic] fitrect01 data

if left argument is 1, applies same factors to both columns
otherwise, scales columns independently.

fit01

fit data to range 0 1
form: [anisotropic] fit data

if left argument is 1, scales columns independently,
otherwise applies same factors to all data,

gfit

fit data to graphics window

scales each column of data independently to range (0,1000)

glines

display line connecting points

{color;width;style} glines points

points should be a 2 column matrix of xy values

gopen

open graphics window
y = controlname;parentname
   if either empty, default to 'isigraph'
e.g   gopen ''
      gopen '';'J Graphics'

gpen

set pen color [;width,style]
(default 1,0}

gpolygon

draw polygon given points
{color} gpolygon points

grayscale

generate grayscale
example:
  grayscale (i.%<:) 5

hue

generate color from color set
x is color set
y is values from 0 to 1, selecting color

hueRGB

generate color from RGB color se
x is RGB color set (default HUES)
y is values from 0 to 1, selecting color

polygon

vertices of a regular polygon
y = number of points
x = scale factor on angle 2p1%y  (default 1)

e.g.   polygon 5 = pentagon
     2 polygon 5 = 5 pointed star

rotate

rotate angle by given amount

e.g. 0.5p1 rotate points = rotate clockwise a quarter turn