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# Copyright (c) 1996, 1997, The Regents of the University of California.
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# All rights reserved. See Legal.htm for full text and disclaimer.
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from scipy_base.fastumath import *
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from GistPlotter import *
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GraphicsError = "GraphicsError"
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graphics = os.environ["PYGRAPH"]
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if graphics [0:3] == "Nar" :
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elif graphics == "Gist" :
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raise GraphicsError , \
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graphics + " is an unknown graphics package. Check PYGRAPH " + \
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"environment variable."
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def span (lb, ub, n) :
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if n < 2: raise ValueError, "Third argument must be at least 2."
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a = (ub - lb) / (n - 1.0)
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return map(lambda x, A=a, B=b: A*x+B,range(n))
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return reshape (array(n*span(lb,ub,n), Float), (n,n))
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for i in range (len (args)) :
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r = r + args[i] * args[i]
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return reshape (array ((n - 1) * spanz (lb, ub, n), Float), (n-1, n-1))
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def spanz (lb, ub, n) :
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if n < 3 : raise ValueError, "3rd argument must be at least 3"
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c = 0.5 * (ub - lb) / (n - 1.0)
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a = (ub -c -b) / (n - 2.0)
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return map (lambda x, A = a, B = b: A * x + B, range (n - 1))
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self.t = 2*pi*arange (400, typecode = Float) / 399.0
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self.phase = self.theta = 0.
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self.dtheta = pi / (self.nsteps - 1)
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self.dphase = 2 * pi / (self.nsteps - 1)
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self.cost = cos (self.theta)
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self.sint = sin (self.theta)
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self.x = self.rc1 * self.cost + self.size * cos (self.na1 * self.t)
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self.y = self.rc1 * self.sint + self.size * sin (self.nb1 * self.t +
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self.x = self.rc2 * self.cost + self.size * cos (self.na2 * self.t)
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self.y = self.rc2 * self.sint + self.size * sin (self.nb2 * self.t +
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self.theta = self.theta + self.dtheta
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self.phase = self.phase + self.dphase
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from curve import Curve
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i = raw_input ("Type in any string to continue; ^C to return to prompt. ")
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print "\nComprehensive graphics test (sort of) for Python interface"
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print "with Narcisse and (mainly) Gist. This mirrors Lee's low level"
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print "routine. Each frame will be described at the terminal; compare"
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print "what you see with the description, then hit <RETURN> to see"
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print "the next test, or ^C (ctrl-C) to escape.\n"
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print "Type 'demo()' to begin.\n"
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from quadmesh import *
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from cellarray import *
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from animation2d import *
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c1 = Curve ( y = [0,1] , marks = 1 , marker = "A")
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pl = Plotter ( dpi = 75 )
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g1 = Graph2d ( c1, plotter = pl , titles = "Curve marked with A" ,
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title_colors = "blue")
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print "\nA small (75 dpi) window with line marked A from (0,0) to (1,1)."
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# pl = Plotter ( dpi = 100 )
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# g1 = Graph2d ( c1, plotter = pl , titles = "Curve marked with A" ,
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# title_colors = "fg")
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# print "\nA large (100 dpi) window with line marked A from (0,0) to (1,1)."
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c2 = Curve ( y = [1,0] , marks = 1 , marker = "B")
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g1.change (titles = "New curve marked B.")
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print "\nAdded line marked B from (0,1) to (1,0) in previous plot."
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g1.change (axis_scales = "loglin", titles = "Same, x axis now logarithmic.")
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print "\nSame, x axis now logarithmic."
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g1.change (x_axis_scale = "lin", titles = "x axis back to linear.")
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print "\nSame, x axis now linear again."
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g1.change(axis_limits=[[1.2,1.8],[0.2,0.8]],
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titles="Limits now 1.2<x<1.8, 0.2<y<0.8.")
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print "\nLimits now 1.2<x<1.8, 0.2<y<0.8."
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# g1.change(y_axis_limits=[0.4,0.6],
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# titles="Limits now 1.2<x<1.8, 0.4<y<0.6")
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# print "\nLimits now 1.2<x<1.8, 0.4<y<0.6"
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g1.change(axis_limits="defaults",
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titles="Limits now back to extreme values.")
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print "\nLimits now back to extreme values."
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x=10*pi*arange(200, typecode = Float)/199.0
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c1 = Curve ( x = x , y = sin(x),marks = 1, marker= "A")
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g1.change (titles = "Five cycles of a sine wave, marked A.")
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print "\nFive cycles of a sine wave."
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c1.set(marks = 0, width = 6 , type = "dash")
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g1.change (titles = "A mark gone, bold dashed.")
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print "\nTurn off A marker, plot curve as bold dashed."
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x=2*pi*arange(200, typecode = Float)/199.0
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for i in range (1,7) :
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r = 0.5*i -(5-0.5*i)*cos(x)
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crvs.append(Curve(y=r*sin(x),x=r*cos(x),marks=0, color=-4-i,label=s))
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g1=Graph2d(crvs,plotter = pl,titles="Nested cardioids in colors")
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print "\nNested cardioids in primary and secondary colors."
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g1.change(titles = ["colors","cardioids","Nested","in many"],
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title_colors = ["red","yellow","magenta","blue"])
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print "\nThe same with four titles in many colors."
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mks = ['.','+','*','o','x','A']
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for i in range (1,7) :
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crvs[i-1].set (color="fg", type = 0, marker = mks[i-1])
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g1.change (titles = "Marked curves", title_colors = "fg")
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print "\nChanges color to foreground, types to no lines."
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print "Markers are point, plus, asterisk, circle, cross, and A."
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for i in range (1,6) :
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crvs[i-1].set (marks = 0, type = i-1)
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crvs[i].set (type = 1, width = 4)
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g1.change (titles = "Different curve types.")
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print "\nChanges line types to solid, dash, dot, dashdot, dashdotdot."
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print "Outermost cardioid becomes a thick solid curve."
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ValueError = "ValueError"
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q1 = QuadMesh ( x=array(xx, copy = 1), y=array(yy, copy = 1) )
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g1.new(q1, plotter = pl, titles = "Round mesh with bites out of sides",
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axis_limits = [[min(ravel(xx)),max(ravel(xx))],
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[min(ravel(yy)),max(ravel(yy))]])
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print "\nQuadrilateral mesh -- round with bites out of its sides."
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q1.set (boundary = 1, vx = x+.5, vy=y-.5,ktype = "none", ltype = "none")
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g1.change(titles = "Vector field on mesh.")
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print "\nVelocity vectors. Try zooming and panning with mouse."
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q1.set (vx = None, vy = None, z = mag (x+.5,y-.5),marks = 1,
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boundary=1,boundary_type="dash",marker="A")
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g1.change(titles = "Lettered contour plot, dashed boundary.")
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print "\nLettered contours, with boundary dashed."
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q1.set (filled=1, type = "dash", color = "white")
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print "\nFilled lettered dashed contours, with boundary dashed."
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q1.set(marks = 0,boundary_type="solid",levels=array([0.5,1.0,1.5]),
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filled=1, contours = 1, type = "dash", color = "white",
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g1.change(titles = "Filled mesh, dashed contours")
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print "\nFilled mesh (color only) with three dashed contours overlaid."
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print "\nAfter each new palette is installed, hit <RETURN> for the next."
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pal=["heat.gp","stern.gp","rainbow.gp","gray.gp","yarg.gp","earth.gp"]
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g1.quick_plot(color_card = pal[i],titles = "Palette " + pal[i])
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pal = ["vg.gs", "boxed.gs", "vgbox.gs", "nobox.gs", "work.gs"]
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q1.set (marks = 1,boundary_type="dash",levels = 8, filled = 0, color = "fg")
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pl.set_style (pal [i])
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## g1 = Graph2d (q1, plotter = pl, titles = "Style Name: " + pal[i])
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g1.change (plotter = pl, titles = "Style Name: " + pal[i])
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funky=cos(r)**2*cos(3*theta)
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c1 = CellArray(z=funky)
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g1.change (color_card = "earth.gp",
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titles ="Cell array, three cycles in theta,r",
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axis_limits = "defaults")
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theta = a2 (0, 2*pi, 18)
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ln = Lines (x0 = x, y0 = y, x1 = transpose (x), y1 = transpose (y))
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g1 = Graph2d (ln, plotter = pl, xyequal = 1, titles = "Seventeen pointed star.")
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print "\nAll 17 pointed stars."
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print "\nNext we will see a lissajous-style animation."
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print "First run without animation mode."
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print "Second run with animation mode."
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anim = Animation2d ( initialize = init, calculations = [calc1, calc2],
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update = incr, animation = 0, nsteps = 200 )
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g1 = Graph2d ( anim , plotter = pl)
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anim.set (animation = 1)
added
removed
Lib/xplt/gistdemohigh.py
