├── 0.9x ├── cartesianPlotFunction2D.inx └── cartesianPlotFunction2D.py ├── LICENSE ├── README.md ├── docs └── images │ ├── AxesConfig_Tab.png │ ├── Examples.png │ ├── Examples.svg │ ├── Examples_white.png │ ├── FunctionDefinition_Tab.png │ ├── Legend_01.png │ ├── Legend_01.svg │ ├── Obs_discontinuous.png │ ├── Obs_discontinuous.svg │ ├── TickLength.png │ ├── TickLength.svg │ ├── TickStep.png │ ├── TickStep.svg │ ├── TickSuffix.png │ ├── TickSuffix.svg │ ├── drawAxes.png │ ├── drawAxes.svg │ ├── ellipsis.png │ ├── ellipsis.svg │ ├── generalAspectRatio.png │ ├── generalAspectRatio.svg │ ├── heaviside.png │ ├── heaviside.svg │ ├── multiply_X_ByPi.png │ ├── multiply_X_ByPi.svg │ ├── pwm.png │ ├── pwm.svg │ ├── rectPulse.png │ ├── rectPulse.svg │ ├── squareWave.png │ ├── squareWave.svg │ ├── xMin_xMax.png │ ├── xMin_xMax.svg │ ├── yMin_yMax.png │ └── yMin_yMax.svg └── latest ├── cartesianPlotFunction2D.inx └── cartesianPlotFunction2D.py /0.9x/cartesianPlotFunction2D.inx: -------------------------------------------------------------------------------- 1 | 2 | 3 | <_name>Plot function 4 | fsmMLK.cartesianPlotFunction2D 5 | cartesianPlotFunction2D.py 6 | inkex.py 7 | inkscapeMadeEasy_Base.py 8 | inkscapeMadeEasy_Draw.py 9 | inkscapeMadeEasy_Plot.py 10 | 11 | 12 | sin(x) 13 | 20 14 | 0 15 | 1 16 | 1 17 | 18 | Input range 19 | 0 20 | 6 21 | 0 22 | 23 | Output range (clip solution) 24 | -1 25 | 1 26 | 27 | 28 | 29 | 30 | X axis 31 | $x$ 32 | 0 33 | 1 34 | 35 | 1 36 | 1 37 | 50 38 | 39 | 40 | Y axis 41 | $y(x)$ 42 | 0 43 | 1 44 | 45 | 1 46 | 1 47 | 50 48 | 49 | 50 | 51 | <_param name="instructions" type="description" xml:space="preserve"> 52 | 53 | You can add LaTeX expressions as labels. If you need to use mathematical environment, encloses the text with $...$. 54 | 55 | The argument 'X or Y tick sufix value' must be compatible with mathematical environemnts. You don't need to use $...$ 56 | 57 | You must write python compatible expressions. The methods of 'math' module are available. 58 | 59 | Please keep in mind that the operator 'power' in python is **. 60 | 61 | Ex: for f(x) = x squared, you must type x**2 62 | 63 | 64 | 65 | 66 | all 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 78 | 79 | -------------------------------------------------------------------------------- /0.9x/cartesianPlotFunction2D.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | # -------------------------------------------------------------------------------------- 4 | # 5 | # cartesianPlotFunction2D: - Inkscape extension to plot functions of one independent variable 6 | # 7 | # Copyright (C) 2016 by Fernando Moura 8 | # 9 | # This program is free software: you can redistribute it and/or modify 10 | # it under the terms of the GNU General Public License as published by 11 | # the Free Software Foundation, either version 3 of the License, or 12 | # (at your option) any later version. 13 | # 14 | # This program is distributed in the hope that it will be useful, 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 | # GNU General Public License for more details. 18 | # 19 | # You should have received a copy of the GNU General Public License 20 | # along with this program. If not, see . 21 | # 22 | # -------------------------------------------------------------------------------------- 23 | 24 | from __future__ import division 25 | import inkex 26 | import inkscapeMadeEasy_Base as inkBase 27 | import inkscapeMadeEasy_Draw as inkDraw 28 | import inkscapeMadeEasy_Plot as inkPlot 29 | from math import * 30 | import numpy 31 | import random 32 | 33 | # heaviside function 34 | def u(x): 35 | if x < 0: 36 | return 0.0 37 | else: 38 | return 1.0 39 | 40 | 41 | # rectangular Pulse 42 | def rectPulse(x, amplitude=1.0, length=1.0, offset=0.0, delay=0.0): 43 | return amplitude * (u(x - delay) - u(x - length - delay)) + offset 44 | 45 | 46 | # square wave, with amplitude -A/2 to A/2, and given period 47 | def squareWave(x, amplitude=1.0, offset=0, period=1.0, delay=0.0): 48 | return rectPulse((x % period), amplitude, period / 2.0, offset=-amplitude / 2.0 + offset, delay=delay) 49 | 50 | 51 | def rand(): 52 | return random.random() 53 | 54 | 55 | #--------------------------------------------- 56 | class PlotFunction(inkBase.inkscapeMadeEasy): 57 | 58 | def __init__(self): 59 | inkBase.inkscapeMadeEasy.__init__(self) 60 | 61 | self.OptionParser.add_option("--tab", action="store", type="string", dest="tab", default="object") 62 | 63 | self.OptionParser.add_option("--function", action="store", type="string", dest="function", default='pow(x,2)') 64 | self.OptionParser.add_option("--nPoints", action="store", type="int", dest="nPoints", default=20) 65 | 66 | self.OptionParser.add_option("--xMin", action="store", type="float", dest="xMin", default='0.0') 67 | self.OptionParser.add_option("--xMax", action="store", type="float", dest="xMax", default='0.0') 68 | self.OptionParser.add_option("--xPi", action="store", type="inkbool", dest="xPi", default=False) 69 | self.OptionParser.add_option("--yMin", action="store", type="float", dest="yMin", default='0.0') 70 | self.OptionParser.add_option("--yMax", action="store", type="float", dest="yMax", default='0.0') 71 | self.OptionParser.add_option("--useElipsis", action="store", type="inkbool", dest="useEllipsis", default=False) 72 | self.OptionParser.add_option("--drawAxis", action="store", type="inkbool", dest="drawAxis", default=True) 73 | 74 | self.OptionParser.add_option("--xLabel", action="store", type="string", dest="xLabel", default='') 75 | self.OptionParser.add_option("--xScale", action="store", type="float", dest="xScale", default='5') 76 | self.OptionParser.add_option("--xLog10scale", action="store", type="inkbool", dest="xLog10scale", default=False) 77 | self.OptionParser.add_option("--xTicks", action="store", type="inkbool", dest="xTicks", default=False) 78 | self.OptionParser.add_option("--xTickStep", action="store", type="float", dest="xTickStep", default='1') 79 | self.OptionParser.add_option("--xGrid", action="store", type="inkbool", dest="xGrid", default=True) 80 | self.OptionParser.add_option("--xExtraText", action="store", type="string", dest="xExtraText", default='') 81 | 82 | self.OptionParser.add_option("--yLabel", action="store", type="string", dest="yLabel", default='') 83 | self.OptionParser.add_option("--yScale", action="store", type="float", dest="yScale", default='5') 84 | self.OptionParser.add_option("--yLog10scale", action="store", type="inkbool", dest="yLog10scale", default=False) 85 | self.OptionParser.add_option("--yTicks", action="store", type="inkbool", dest="yTicks", default=False) 86 | self.OptionParser.add_option("--yTickStep", action="store", type="float", dest="yTickStep", default='1') 87 | self.OptionParser.add_option("--yGrid", action="store", type="inkbool", dest="yGrid", default=True) 88 | self.OptionParser.add_option("--yExtraText", action="store", type="string", dest="yExtraText", default='') 89 | 90 | self.OptionParser.add_option("--generalAspectFactor", action="store", type="float", dest="generalAspectFactor", default=1.0) 91 | 92 | def effect(self): 93 | 94 | so = self.options 95 | 96 | # sets the position to the viewport center, round to next 10. 97 | position = [self.view_center[0], self.view_center[1]] 98 | position[0] = int(ceil(position[0] / 10.0)) * 10 99 | position[1] = int(ceil(position[1] / 10.0)) * 10 100 | 101 | #root_layer = self.current_layer 102 | root_layer = self.document.getroot() 103 | #root_layer = self.getcurrentLayer() 104 | 105 | myLambda = eval('lambda x: ' + so.function) 106 | 107 | # generate x data 108 | if not so.xLog10scale: 109 | xData = numpy.linspace(so.xMin, so.xMax, so.nPoints) 110 | else: 111 | xMin = so.xMin 112 | xMax = so.xMax 113 | # check limits 114 | if so.xMin <= 0: 115 | self.displayMsg('Error: xMin=%d is invalid in logarithmic scale\nUsing 0.001 instead' % (so.xMin)) 116 | xMin = 0.001 117 | # check limits 118 | if so.xMax <= 0: 119 | self.displayMsg('Error: xMax=%d is invalid in logarithmic scale\nUsing 100 times xMin instead' % (so.xMax)) 120 | xMax = 100 * xMin 121 | 122 | xData = numpy.logspace(log10(xMin), log10(xMax), so.nPoints) 123 | 124 | if so.xPi: 125 | xData = [x * pi for x in xData] 126 | 127 | # generate y data 128 | #yData= map(myLambda, xData) 129 | 130 | yData = [] 131 | for x in xData: 132 | if myLambda(x) == float('Inf'): 133 | yData.append(0.0) 134 | inkDraw.text.write(self, 'Inf result detected: The function at x=%d is infinite.' % x, position, root_layer, fontSize=5) 135 | inkDraw.text.write(self, 'Setting the point to 0... PLEASE CHECK YOUR PLOT!' % x, [position[0], position[1] + 8], root_layer, fontSize=5) 136 | else: 137 | yData.append(myLambda(x)) 138 | 139 | # check if limits are valid 140 | if so.yMin >= so.yMax: 141 | self.displayMsg('Error: yMin and yMax are invalid.') 142 | return 0 143 | 144 | # block limits 145 | yData = [min(y, so.yMax) for y in yData] 146 | yData = [max(y, so.yMin) for y in yData] 147 | 148 | if so.yLog10scale: 149 | ylim = None 150 | else: 151 | ylim = [so.yMin, so.yMax] 152 | 153 | # x labels if multiply by pi 154 | if so.xPi: 155 | xData = numpy.linspace(so.xMin, so.xMax, so.nPoints) 156 | xExtraText = "\pi " + so.xExtraText 157 | else: 158 | xExtraText = so.xExtraText 159 | 160 | # line style 161 | lineWidthPlot = so.generalAspectFactor * min(so.xScale, so.yScale) / 30.0 162 | lineColor = inkDraw.color.defined('blue') 163 | if so.useEllipsis: 164 | StartLineInf, EndLineInf = inkDraw.marker.createElipsisMarker(self, 'InfiniteLine', RenameMode=1, fillColor=lineColor) 165 | lineStylePlot = inkDraw.lineStyle.set(lineWidth=lineWidthPlot, lineColor=lineColor, markerStart=StartLineInf, markerEnd=EndLineInf) 166 | else: 167 | lineStylePlot = inkDraw.lineStyle.set(lineWidth=lineWidthPlot, lineColor=lineColor) 168 | 169 | inkPlot.plot.cartesian(self, root_layer, xData, yData, position, 170 | xLabel=so.xLabel, yLabel=so.yLabel, xlog10scale=so.xLog10scale, ylog10scale=so.yLog10scale, 171 | xTicks=so.xTicks, yTicks=so.yTicks, xTickStep=so.xTickStep, yTickStep=so.yTickStep, 172 | xScale=so.xScale, yScale=so.yScale, xExtraText=xExtraText, yExtraText=so.yExtraText, 173 | xGrid=so.xGrid, yGrid=so.yGrid, generalAspectFactorAxis=so.generalAspectFactor, lineStylePlot=lineStylePlot, 174 | forceYlim=ylim, drawAxis=so.drawAxis) 175 | 176 | if __name__ == '__main__': 177 | plot = PlotFunction() 178 | plot.affect() 179 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # cartesianPlotFunction2D 2 | 3 | This extension will assist you creating plot of functions of independent variable in [Inkscape](https://inkscape.org/). 4 | 5 | 6 | 7 | 8 | This extension was inspired by Tavmjong Bah's (and collaborators) extension **Function Plotter** already presented in Inkscape. Function Plotter extension is not required here. 9 | 10 | ### main features 11 | 12 | The main features are 13 | 14 | - Linear and log10 scales 15 | - Optional grid lines in X and Y directions 16 | - Adjustable tick mark intervals and sizes 17 | - Optional LaTeX support 18 | 19 | ## Current and older versions 20 | 21 | Compatibility table 22 | 23 | | Inkscape | cartesianPlotFunction2D | inkscapeMadeEasy | Receive updates?| 24 | |------------------|-----------------|------------------|-----------------| 25 | | 1.0 | 1.0 (latest) | 1.0 (latest) | YES | 26 | | 0.48, 0.91, 0.92 | 0.9x (obsolete) | 0.9x (obsolete) | NO | 27 | 28 | 29 | **Latest version:** The latest version of **cartesianPlotFunction2D** is **1.0**. This version is compatible with Inkscape 1.0 and up only. It is **incompatible** with older Inkscape versions! 30 | 31 | **Older versions:** If you have an older version of Inkscape, please use the files under the folder **0.9x** on Github. 32 | 33 | **Important: Only the latest version will receive updates, new features, and bug fixes! The usage section in this documentation describes the latest version. In older versions, the disposition of the elements in the plugin's screen might be different. Some features might not be present or have different behavior.** 34 | 35 | # Installation and requirements 36 | 37 | Installation procedures for latest and older versions are described below. 38 | 39 | ## Requirements (all versions) 40 | 41 | - You will need [inkscapeMadeEasy](https://github.com/fsmMLK/inkscapeMadeEasy) plugin installed. Check the compatibility table above to know the version you need. 42 | 43 | ## Installation procedure (v1.0 only) 44 | 45 | **cartesianPlotFunction2D** was developed using Inkscape 1.0 in Linux (Kubuntu 18.04). It should work in different OSs too as long as all requirements are met. 46 | 47 | 1. Install [inkscapeMadeEasy](https://github.com/fsmMLK/inkscapeMadeEasy), **version 1.0** (latest). Follow the instructions in the manual page. **Note:** LaTeX text is used in **cartesianPlotFunction2D** if the support is activated (nicer results), otherwise regular text elements will be used. 48 | 49 | 2. **cartesianPlotFunction2D** installation 50 | 51 | 1. Go to Inkscape's extension directory with a file browser. Your inkscape extension directory can be accessed by opening Inkscape and selecting ``Edit > Preferences > System``. Look for the item **User Extensions** field. There is a button on the right of the field that will open a file explorer window in that specific folder. 52 | 53 | 2. Create a subfolder in the extension directory with the name ``cartesianPlotFunction2D``. **Important:** Be careful with upper and lower case letters. You must write as presented above. 54 | 55 | 3. Download **cartesianPlotFunction2D** files and place them inside the directory you just created. 56 | 57 | You don't have to copy all files from Github. The files you will need are inside the ``latest`` folder. In the end you must have the following files and directories in your Inkscape extension directory. 58 | 59 | **LaTeX users:** You can add macros to ``inkscapeMadeEasy/basicLatexPackages.tex``. In this case the same macros will be accessible by all plugins that employ inkscapeMadeEasy. 60 | 61 | ``` 62 | inkscape 63 | ┣━━extensions 64 | ┋ ┣━━ inkscapeMadeEasy <-- inkscapeMadeEasy folder 65 | ┃ ┣━━ inkscapeMadeEasy_Base.py 66 | ┃ ┣━━ inkscapeMadeEasy_Draw.py 67 | ┃ ┣━━ inkscapeMadeEasy_Plot.py 68 | ┃ ┗━━ basicLatexPackages.tex 69 | ┃ 70 | ┣━━ textext <-- texText folder (if you installed textText) 71 | ┃ ┋ 72 | ┃ 73 | ┣━━ cartesianPlotFunction2D <-- cartesianPlotFunction2D folder 74 | ┋ ┣━━ cartesianPlotFunction2D.inx 75 | ┗━━ cartesianPlotFunction2D.py 76 | 77 | NOTE: You might have other sub folders inside the extensions directory. They don't interfere with the plugin. 78 | ``` 79 | 80 | ## Installation procedure (v0.9x only) 81 | 82 | **cartesianPlotFunction2D** was developed using Inkscape 0.48 and 0.91 in Linux (Kubuntu 18.04). It should work in different OSs too as long as all requirements are met. 83 | 84 | 1. Install [inkscapeMadeEasy](https://github.com/fsmMLK/inkscapeMadeEasy), **version 1.0** (latest). Follow the instructions in the manual page. **Note:** LaTeX text is used in **cartesianPlotFunction2D** if the support is activated (nicer results), otherwise regular text elements will be used. 85 | 86 | 2. **cartesianPlotFunction2D** installation 87 | 88 | 1. Go to Inkscape's extension directory with a file browser. 89 | 90 | 2. Download **cartesianPlotFunction2D** files and place them inside the directory you just created. 91 | 92 | You don't have to copy all files from Github. The files you will need are inside the ``0.9x`` folder. In the end you must have the following files and directories in your Inkscape extension directory. 93 | 94 | ``` 95 | inkscape 96 | ┣━━ extensions 97 | ┋ ┣━━ inkscapeMadeEasy_Base.py 98 | ┣━━ inkscapeMadeEasy_Draw.py 99 | ┣━━ inkscapeMadeEasy_Plot.py 100 | ┃ 101 | ┣━━ textextLib 102 | ┃ ┣━━ __init__.py 103 | ┃ ┣━━ basicLatexPackages.tex 104 | ┃ ┣━━ textext.inx 105 | ┃ ┗━━ textext.py 106 | ┃ 107 | ┣━━ cartesianPlotData2D.inx <-- from repository folder 0.9x! 108 | ┗━━ cartesianPlotData2D.py <-- 109 | ``` 110 | 111 | # Usage 112 | 113 | The extension can be found under `extensions > fsmMLK > Plot 2D > Cartesian` menu. 114 | 115 | This extension is presented in two tabs, **Function Definition** and **Config**. The first is used to define the function and input/output ranges. The second is used to configure the axes. 116 | 117 | ## Function Definition tab 118 | 119 | 120 | 121 | Here you can define your function and set both the input and output ranges. 122 | 123 | **Function:** Function definition. This must be a python compatible expression. Your independent variable **MUST** be `x`. 124 | 125 | > Tip: This extension imports all method from 'math' module from python. Therefore you don have to specify the module name math.[some_method]. Example: to generate a sine function, just type `sin(x)`. You don't have to type `math.sin(x)` 126 | 127 | > Important: The extension will execute the function as a piece of python code. **DO NOT copy paste functions from untrusted sources!** 128 | 129 | 130 | **Number of points:** Number of points where the function will be evaluated within the limits. See image below. 131 | 132 | - *X axis in linear scale*: the points will be uniformly distributed within the limits. 133 | - *X axis in log scale*: the points will be logarithmically distributed within the limits (same number of points per decade) 134 | 135 | 136 | 137 | ### Input/Output range sections 138 | 139 | **X limits:** Set the range of the independent variable (X axis). On the side there are two fields for the lower and upper limits. 140 | 141 | 142 | The extension will inform if these limits are invalid. 143 | 144 | - The upper limit must be greater than the lower limit. 145 | - If logarithmic scale is checked, then the lower limit will be rounded down to the nearest power of 10 and the upper rounded up to the nearest power of 10 in order to complete the decades. Ex: 0.2 to 12, then the limits will be rounded to 0.1 to 100 (see image below). **Attention:** The rounding will not change the range of values in which the function will be evaluated. The limits will be rounded only to present complete decades. 146 | - If logarithmic scale is checked: 147 | * if lower limit is smaller or equal to zero then the lower limit will be set to 0.001. 148 | * if upper limit is smaller or equal to zero then the upper limit will be set to 100 times the lower limit. 149 | 150 | 151 | 152 | **multiply X by pi:** Multiply the limits by pi. Ex: `xMin=-2` and `xMax=2`, with this checkbox selected will result in `xMin=-2pi` ans `xMax=2pi`. This is specially useful for trigonometric functions. 153 | 154 | > If this checkbox is selected, *X tick step* (see below) will also be multiplied by pi. 155 | 156 | 157 | 158 | 159 | **Y limits:** (linear scale only) Set the range of the dependent variable (Y axis). The extension will inform if these limits are invalid. These limits are used to truncate the solution, that is, if `f(x)` does not lie within Ymin and Ymax, the solution will be clipped at these values. See image bellow. 160 | 161 | ## Config tab 162 | 163 | This tab has two sections. The first contains general properties of the plot and the second controls the axes. 164 | 165 | 166 | 167 | 168 | ### General config section 169 | 170 | **Use ellipsis marks at the ends:** Use ellipsis marks at the end of the plots to indicate continuation 171 | 172 | 173 | 174 | **Draw Cartesian plane:** Toggle to generate the cartesian axes together with the plot. 175 | 176 | 177 | 178 | **General aspect factor:** General aspect ratio between line widths and text height. I designed this extension to have an overall aspect ratio that "looks nice". It is a function of X and Y tick lengths. With this control you can scale both line width and text height. The defauls value is 1.0. 179 | 180 | 181 | 182 | ### Axes section 183 | 184 | The parameters in this section controls X and Y axes. They act on the axes the same way. 185 | 186 | 187 | 188 | **Label:** label of the axes. If LaTeX support is activated and you want to write in mathematical environment, enclose your text with $...$. 189 | 190 | > Tip: Since `siunitx` package is included in inkscapeMadeEasy's basicLatexPackages.tex, you can use any unit command available there too! 191 | 192 | > Ex: `Foobar $\sqrt{x^2}$ so fancy! (\si{\newton\per\squaremetre})` 193 | 194 | 195 | 196 | **Log scale:** Set the axis to be represented in log10 scale. 197 | 198 | **Add grid:** Draw grid lines. 199 | 200 | - *linear scale:* The grid lines will be placed at the tick marks. 201 | - *log scale:* The grid lines will be placed dividing each decade in 10 parts 202 | 203 | **Add ticks:** Draw tick marks with associated values. 204 | 205 | **Tick step:** Tick mark interval, in units of your chart. This option does not affect log scale. 206 | 207 | Ex: limits from -1 to 1, with tick step of 0.5 will produce ticks at -1, -0.5, 0, 0.5, 1 208 | 209 | > Note: The ticks will radiate from the origin (x=0 or y=0) unless the origin does not lie within the limits. In such cases, the ticks will radiate starting from the limit closest to the origin. See image below. 210 | > 211 | > Examples in x direction: (The same rules apply to Y direction) 212 | > 213 | > 214 | 215 | 216 | **Tick length** The distance between tick marks, in units of your canvas. See image below. 217 | 218 | - *linear scale:* The distance between consecutive ticks, in units of your canvas. 219 | - *logarithmic scale:* The size of each decade, in units of your canvas. 220 | 221 | 222 | 223 | **Tick suffix:** Optional extra suffix to be added to tick text. **LaTeX support enabled**: You can use any LaTeX text/commands valid in mathematical environment. You don't have to enclose your text between $...$. 224 | 225 | **Atention**: the values appended to tick mark text will NOT affect input/output limits! 226 | 227 | 228 | 229 | # Observations 230 | 231 | - The plot is generated by evaluating the function at points along the input range and connecting them with a polyline. Therefore if your function has discontinuities, your plot will present a line connecting both sides of the discontinuity. **In such cases, please check your plot!** ;) 232 | 233 | 234 | 235 | - The axes will be placed crossing the origin (0,0) or crossing the coordinate (x,y) closest to the origin if the origin does not lies within the limits. 236 | - The axes will be created in the center of your screen. 237 | 238 | # Special functions 239 | 240 | Together with the extension, I also predefined a few functions: 241 | 242 | - **Heaviside step function** 243 | 244 | Calling: `u(x)` 245 | 246 | Examples: 247 | 248 | 249 | 250 | - **Rectangular pulse** 251 | 252 | Calling: `rectPulse(x,amplitude=1.0,length=1.0,offset=0.0,delay=0.0)` 253 | 254 | 255 | 256 | - **Square wave** 257 | 258 | Calling: `squareWave(x,amplitude=1.0,offset=0,period=1.0,delay=0.0)` 259 | 260 | 261 | 262 | 263 | - **PWM (Pulse Width Modulation)** 264 | 265 | Calling: `pwm(x,amplitude=1.0, offset=0.0, period=1.0, duty=0.5,delay=0.0):` 266 | 267 | 268 | 269 | 270 | > Tip: You can define your own functions at the beginning of the file `cartesianPlotFunction2D.py` 271 | 272 | 273 | 274 | 275 | -------------------------------------------------------------------------------- /docs/images/AxesConfig_Tab.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/fsmMLK/inkscapeCartesianPlotFunction2D/219160f9f02a1c5afa4a5a1854b9c115a8c6149d/docs/images/AxesConfig_Tab.png -------------------------------------------------------------------------------- /docs/images/Examples.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/fsmMLK/inkscapeCartesianPlotFunction2D/219160f9f02a1c5afa4a5a1854b9c115a8c6149d/docs/images/Examples.png -------------------------------------------------------------------------------- /docs/images/Examples_white.png: 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1 | 2 | 3 | Plot function 4 | fsmMLK.cartesianPlotFunction2D 5 | cartesianPlotFunction2D.py 6 | inkscapeMadeEasy/inkscapeMadeEasy_Base.py 7 | inkscapeMadeEasy/inkscapeMadeEasy_Draw.py 8 | inkscapeMadeEasy/inkscapeMadeEasy_Plot.py 9 | 10 | 11 | 12 | 13 | sin(x) 14 | 20 15 | 16 | 17 | 18 | 19 | 0 20 | 6 21 | 22 | false 23 | 24 | 25 | -1 26 | 1 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | false 40 | true 41 | 1 42 | 43 | 44 | 45 | $x$ 46 | 47 | 48 | false 49 | true 50 | true 51 | 52 | 53 | 54 | 55 | 56 | 1 57 | 50 58 | 59 | 60 | 61 | 62 | 63 | $y(x)$ 64 | 65 | 66 | false 67 | true 68 | true 69 | 70 | 71 | 72 | 73 | 74 | 1 75 | 50 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | all 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 106 | 107 | -------------------------------------------------------------------------------- /latest/cartesianPlotFunction2D.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | # -------------------------------------------------------------------------------------- 4 | # 5 | # cartesianPlotFunction2D: - Inkscape extension to plot functions of one independent variable 6 | # 7 | # Copyright (C) 2016 by Fernando Moura 8 | # 9 | # This program is free software: you can redistribute it and/or modify 10 | # it under the terms of the GNU General Public License as published by 11 | # the Free Software Foundation, either version 3 of the License, or 12 | # (at your option) any later version. 13 | # 14 | # This program is distributed in the hope that it will be useful, 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 | # GNU General Public License for more details. 18 | # 19 | # You should have received a copy of the GNU General Public License 20 | # along with this program. If not, see . 21 | # 22 | # -------------------------------------------------------------------------------------- 23 | 24 | from __future__ import division 25 | 26 | import random 27 | from math import * 28 | 29 | import numpy 30 | 31 | import inkscapeMadeEasy.inkscapeMadeEasy_Base as inkBase 32 | import inkscapeMadeEasy.inkscapeMadeEasy_Draw as inkDraw 33 | import inkscapeMadeEasy.inkscapeMadeEasy_Plot as inkPlot 34 | 35 | 36 | # heaviside function 37 | def u(x): 38 | if x < 0: 39 | return 0.0 40 | else: 41 | return 1.0 42 | 43 | 44 | # rectangular Pulse 45 | def rectPulse(x, amplitude=1.0, length=1.0, offset=0.0, delay=0.0): 46 | return amplitude * (u(x - delay) - u(x - length - delay)) + offset 47 | 48 | # square wave, with amplitude -A/2 to A/2, and given period 49 | def squareWave(x, amplitude=1.0, offset=0, period=1.0, delay=0.0): 50 | return rectPulse((x % period), amplitude, period / 2.0, offset=-amplitude / 2.0 + offset, delay=delay) 51 | 52 | # PWM wave 53 | def pwm(x,amplitude=1.0, offset=0.0, period=1.0, duty=0.5,delay=0.0): 54 | #duty: percentage between 0.0 and 1.0 55 | return rectPulse((x % period), amplitude, period * duty, offset=offset, delay=delay) 56 | 57 | def rand(): 58 | return random.random() 59 | 60 | 61 | # --------------------------------------------- 62 | class PlotFunction(inkBase.inkscapeMadeEasy): 63 | 64 | def __init__(self): 65 | inkBase.inkscapeMadeEasy.__init__(self) 66 | 67 | self.arg_parser.add_argument("--tab", type=str, dest="tab", default="object") 68 | self.arg_parser.add_argument("--subtab_axis", type=str, dest="subtab_axis", default="object") 69 | 70 | self.arg_parser.add_argument("--function", type=str, dest="function", default='pow(x,2)') 71 | self.arg_parser.add_argument("--nPoints", type=int, dest="nPoints", default=20) 72 | 73 | self.arg_parser.add_argument("--xMin", type=float, dest="xMin", default='0.0') 74 | self.arg_parser.add_argument("--xMax", type=float, dest="xMax", default='0.0') 75 | self.arg_parser.add_argument("--xPi", type=self.bool, dest="xPi", default=False) 76 | self.arg_parser.add_argument("--yMin", type=float, dest="yMin", default='0.0') 77 | self.arg_parser.add_argument("--yMax", type=float, dest="yMax", default='0.0') 78 | self.arg_parser.add_argument("--useElipsis", type=self.bool, dest="useEllipsis", default=False) 79 | self.arg_parser.add_argument("--drawAxis", type=self.bool, dest="drawAxis", default=True) 80 | 81 | self.arg_parser.add_argument("--xLabel", type=str, dest="xLabel", default='') 82 | self.arg_parser.add_argument("--xScale", type=float, dest="xScale", default='5') 83 | self.arg_parser.add_argument("--xLog10scale", type=self.bool, dest="xLog10scale", default=False) 84 | self.arg_parser.add_argument("--xTicks", type=self.bool, dest="xTicks", default=False) 85 | self.arg_parser.add_argument("--xTickStep", type=float, dest="xTickStep", default='1') 86 | self.arg_parser.add_argument("--xGrid", type=self.bool, dest="xGrid", default=True) 87 | self.arg_parser.add_argument("--xExtraText", type=str, dest="xExtraText", default='') 88 | 89 | self.arg_parser.add_argument("--yLabel", type=str, dest="yLabel", default='') 90 | self.arg_parser.add_argument("--yScale", type=float, dest="yScale", default='5') 91 | self.arg_parser.add_argument("--yLog10scale", type=self.bool, dest="yLog10scale", default=False) 92 | self.arg_parser.add_argument("--yTicks", type=self.bool, dest="yTicks", default=False) 93 | self.arg_parser.add_argument("--yTickStep", type=float, dest="yTickStep", default='1') 94 | self.arg_parser.add_argument("--yGrid", type=self.bool, dest="yGrid", default=True) 95 | self.arg_parser.add_argument("--yExtraText", type=str, dest="yExtraText", default='') 96 | 97 | self.arg_parser.add_argument("--generalAspectFactor", type=float, dest="generalAspectFactor", default=1.0) 98 | 99 | def effect(self): 100 | 101 | so = self.options 102 | 103 | # sets the position to the viewport center, round to next 10. 104 | position = [self.svg.namedview.center[0], self.svg.namedview.center[1]] 105 | position[0] = int(ceil(position[0] / 10.0)) * 10 106 | position[1] = int(ceil(position[1] / 10.0)) * 10 107 | 108 | # root_layer = self.current_layer 109 | root_layer = self.document.getroot() 110 | # root_layer = self.getcurrentLayer() 111 | 112 | myLambda = eval('lambda x: ' + so.function) 113 | 114 | # generate x data 115 | if not so.xLog10scale: 116 | xData = numpy.linspace(so.xMin, so.xMax, so.nPoints) 117 | else: 118 | xMin = so.xMin 119 | xMax = so.xMax 120 | # check limits 121 | if so.xMin <= 0: 122 | self.displayMsg('Error: xMin=%d is invalid in logarithmic scale\nUsing 0.001 instead' % (so.xMin)) 123 | xMin = 0.001 124 | # check limits 125 | if so.xMax <= 0: 126 | self.displayMsg('Error: xMax=%d is invalid in logarithmic scale\nUsing 100 times xMin instead' % (so.xMax)) 127 | xMax = 100 * xMin 128 | 129 | xData = numpy.logspace(log10(xMin), log10(xMax), so.nPoints) 130 | 131 | if so.xPi: 132 | xData = [x * pi for x in xData] 133 | 134 | # generate y data 135 | # yData= map(myLambda, xData) 136 | 137 | yData = [] 138 | for x in xData: 139 | if myLambda(x) == float('Inf'): 140 | yData.append(0.0) 141 | inkDraw.text.write(self, 'Inf result detected: The function at x=%d is infinite.' % x, position, root_layer, fontSize=5) 142 | inkDraw.text.write(self, 'Setting the point to 0... PLEASE CHECK YOUR PLOT!' % x, [position[0], position[1] + 8], root_layer, 143 | fontSize=5) 144 | else: 145 | yData.append(myLambda(x)) 146 | 147 | # check if limits are valid 148 | if so.yMin >= so.yMax: 149 | self.displayMsg('Error: yMin and yMax are invalid.') 150 | return 0 151 | 152 | # block limits 153 | yData = [min(y, so.yMax) for y in yData] 154 | yData = [max(y, so.yMin) for y in yData] 155 | 156 | if so.yLog10scale: 157 | ylim = None 158 | else: 159 | ylim = [so.yMin, so.yMax] 160 | 161 | # x labels if multiply by pi 162 | if so.xPi: 163 | xData = numpy.linspace(so.xMin, so.xMax, so.nPoints) 164 | xExtraText = "\pi " + so.xExtraText 165 | else: 166 | xExtraText = so.xExtraText 167 | 168 | # line style 169 | lineWidthPlot = so.generalAspectFactor * min(so.xScale, so.yScale) / 30.0 170 | lineColor = inkDraw.color.defined('blue') 171 | if so.useEllipsis: 172 | StartLineInf, EndLineInf = inkDraw.marker.createElipsisMarker(self, 'InfiniteLine', RenameMode=1, fillColor=lineColor) 173 | lineStylePlot = inkDraw.lineStyle.set(lineWidth=lineWidthPlot, lineColor=lineColor, markerStart=StartLineInf, markerEnd=EndLineInf) 174 | else: 175 | lineStylePlot = inkDraw.lineStyle.set(lineWidth=lineWidthPlot, lineColor=lineColor) 176 | 177 | inkPlot.plot.cartesian(self, root_layer, xData, yData, position, xLabel=so.xLabel, yLabel=so.yLabel, xlog10scale=so.xLog10scale, 178 | ylog10scale=so.yLog10scale, xTicks=so.xTicks, yTicks=so.yTicks, xTickStep=so.xTickStep, yTickStep=so.yTickStep, 179 | xScale=so.xScale, yScale=so.yScale, xExtraText=xExtraText, yExtraText=so.yExtraText, xGrid=so.xGrid, yGrid=so.yGrid, 180 | generalAspectFactorAxis=so.generalAspectFactor, lineStylePlot=lineStylePlot, forceYlim=ylim, drawAxis=so.drawAxis) 181 | 182 | 183 | if __name__ == '__main__': 184 | plot = PlotFunction() 185 | plot.run() 186 | --------------------------------------------------------------------------------