From 281f89bb2015da68110edca1acb802f81f945260 Mon Sep 17 00:00:00 2001 From: Luca Bruno Date: Tue, 6 Feb 2007 19:03:08 +0000 Subject: Added Esperanto translation (bzr r2333) --- share/extensions/funcplot.py | 266 +++++++------------------------------------ 1 file changed, 42 insertions(+), 224 deletions(-) (limited to 'share/extensions/funcplot.py') diff --git a/share/extensions/funcplot.py b/share/extensions/funcplot.py index 9948478a1..a093a3ff2 100644 --- a/share/extensions/funcplot.py +++ b/share/extensions/funcplot.py @@ -1,224 +1,42 @@ -#!/usr/bin/env python -''' -Copyright (C) 2006 Georg Wiora, xorx@quarkbox.de -Copyright (C) 2006 Johan Engelen, johan@shouraizou.nl -Copyright (C) 2005 Aaron Spike, aaron@ekips.org - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - -Changes: - * This program is a modified version of wavy.py by Aaron Spike. - * 22-Dec-2006: Wiora : Added axis and isotropic scaling - -''' -import inkex, simplepath, simplestyle -from math import * -from random import * - -def drawfunction(xstart, xend, ybottom, ytop, samples, width, height, left, bottom, - fx = "sin(x)", fpx = "cos(x)", fponum = True, times2pi = False, isoscale = True, drawaxis = True): - - if times2pi == True: - xstart = 2 * pi * xstart - xend = 2 * pi * xend - - # coords and scales based on the source rect - scalex = width / (xend - xstart) - xoff = left - coordx = lambda x: (x - xstart) * scalex + xoff #convert x-value to coordinate - scaley = height / (ytop - ybottom) - yoff = bottom - coordy = lambda y: (ybottom - y) * scaley + yoff #convert y-value to coordinate - - # Check for isotropic scaling and use smaller of the two scales, correct ranges - if isoscale: - if scaley=0: - # xaxis - a.append(['M ',[left, coordy(0)]]) - a.append([' l ',[width, 0]]) - # check for visibility of y-axis - if xstart<=0 and xend>=0: - # xaxis - a.append([' M ',[coordx(0),bottom]]) - a.append([' l ',[0, -height]]) - - # initialize function and derivative for 0; - # they are carried over from one iteration to the next, to avoid extra function calculations - y0 = f(xstart) - if fponum == True: # numerical derivative, using 0.001*step as the small differential - d0 = (f(xstart + 0.001*step) - y0)/(0.001*step) - else: # derivative given by the user - d0 = fp(xstart) - - # Start curve - a.append([' M ',[coordx(xstart), coordy(y0)]]) # initial moveto - - for i in range(int(samples-1)): - x = (i+1) * step + xstart - y1 = f(x) - if fponum == True: # numerical derivative - d1 = (y1 - f(x - 0.001*step))/(0.001*step) - else: # derivative given by the user - d1 = fp(x) - # create curve - a.append([' C ',[coordx(x - step + third), coordy(y0 + (d0 * third)), - coordx(x - third), coordy(y1 - (d1 * third)), - coordx(x), coordy(y1)]]) - y0 = y1 # next segment's y0 is this segment's y1 - d0 = d1 # we assume the function is smooth everywhere, so carry over the derivative too - - return a - -class FuncPlot(inkex.Effect): - def __init__(self): - inkex.Effect.__init__(self) - self.OptionParser.add_option("--xstart", - action="store", type="float", - dest="xstart", default=0.0, - help="Start x-value") - self.OptionParser.add_option("--xend", - action="store", type="float", - dest="xend", default=1.0, - help="End x-value") - self.OptionParser.add_option("--times2pi", - action="store", type="inkbool", - dest="times2pi", default=True, - help="Multiply x-range by 2*pi") - self.OptionParser.add_option("--ybottom", - action="store", type="float", - dest="ybottom", default=-1.0, - help="y-value of rectangle's bottom") - self.OptionParser.add_option("--ytop", - action="store", type="float", - dest="ytop", default=1.0, - help="y-value of rectangle's top") - self.OptionParser.add_option("-s", "--samples", - action="store", type="int", - dest="samples", default=8, - help="Samples") - self.OptionParser.add_option("--fofx", - action="store", type="string", - dest="fofx", default="sin(x)", - help="f(x) for plotting") - self.OptionParser.add_option("--fponum", - action="store", type="inkbool", - dest="fponum", default=True, - help="Calculate the first derivative numerically") - self.OptionParser.add_option("--fpofx", - action="store", type="string", - dest="fpofx", default="cos(x)", - help="f'(x) for plotting") - self.OptionParser.add_option("--remove", - action="store", type="inkbool", - dest="remove", default=True, - help="If True, source rectangle is removed") - self.OptionParser.add_option("--isoscale", - action="store", type="inkbool", - dest="isoscale", default=True, - help="If True, isotropic scaling is used") - self.OptionParser.add_option("--drawaxis", - action="store", type="inkbool", - dest="drawaxis", default=True, - help="If True, axis are drawn") - self.OptionParser.add_option("--tab", - action="store", type="string", - dest="tab", default="sampling", - help="The selected UI-tab when OK was pressed") - self.OptionParser.add_option("--pythonfunctions", - action="store", type="string", - dest="pythonfunctions", default="", - help="dummy") - - def effect(self): - for id, node in self.selected.iteritems(): - if node.tagName == 'rect': - # create new path with basic dimensions of selected rectangle - newpath = self.document.createElement('svg:path') - x = float(node.attributes.getNamedItem('x').value) - y = float(node.attributes.getNamedItem('y').value) - w = float(node.attributes.getNamedItem('width').value) - h = float(node.attributes.getNamedItem('height').value) - - #copy attributes of rect - s = node.attributes.getNamedItem('style').value - newpath.setAttribute('style', s) - try: - t = node.attributes.getNamedItem('transform').value - newpath.setAttribute('transform', t) - except AttributeError: - pass - - # top and bottom where exchanhged - newpath.setAttribute('d', simplepath.formatPath( - drawfunction(self.options.xstart, - self.options.xend, - self.options.ybottom, - self.options.ytop, - self.options.samples, - w,h,x,y+h, - self.options.fofx, - self.options.fpofx, - self.options.fponum, - self.options.times2pi, - self.options.isoscale, - self.options.drawaxis))) - newpath.setAttribute('title', self.options.fofx) - - #newpath.setAttribute('desc', '!func;' + self.options.fofx + ';' - # + self.options.fpofx + ';' - # + `self.options.fponum` + ';' - # + `self.options.xstart` + ';' - # + `self.options.xend` + ';' - # + `self.options.samples`) - - # add path into SVG structure - node.parentNode.appendChild(newpath) - # option wether to remove the rectangle or not. - if self.options.remove: - node.parentNode.removeChild(node) - -e = FuncPlot() -e.affect() + + <_name>Function Plotter + org.inkscape.effect.funcplot + funcplot.py + inkex.py + + + 0.0 + 1.0 + false + 0.0 + 1.0 + 8 + false + + + <_param name="pythonfunctions" type="description">The following functions are available: +(the available functions are the standard python math functions) +ceil(x); fabs(x); floor(x); fmod(x,y); frexp(x); ldexp(x,i); +modf(x); exp(x); log(x [, base]); log10(x); pow(x,y); sqrt(x); +acos(x); asin(x); atan(x); atan2(y,x); hypot(x,y); +cos(x); sin(x); tan(x); degrees(x); radians(x); +cosh(x); sinh(x); tanh(x). + +The constants pi and e are also available. + + + exp(-x*x) + true + x + true + false + + rect + + + + + + -- cgit v1.2.3