<?xml version="1.0" encoding="UTF-8"?>

<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">

<_name>Function Plotter</_name>

<id>org.inkscape.effect.funcplot</id>

<dependency type="executable" location="extensions">funcplot.py</dependency>

<dependency type="executable" location="extensions">inkex.py</dependency>

<param name="tab" type="notebook">

<page name="sampling" _gui-text="Range and sampling">

<param name="xstart" type="float" min="-1000.0" max="1000.0" _gui-text="Start X value:">0.0</param>

<param name="xend" type="float" min="-1000.0" max="1000.0" _gui-text="End X value:">1.0</param>

<param name="times2pi" type="boolean" _gui-text="Multiply X range by 2*pi">false</param>

<param name="ybottom" type="float" min="-1000.0" max="1000.0" _gui-text="Y value of rectangle's bottom:">0.0</param>

<param name="ytop" type="float" min="-1000.0" max="1000.0" _gui-text="Y value of rectangle's top:">1.0</param>

<param name="samples" type="int" min="2" max="1000" _gui-text="Number of samples:">8</param>

<param name="isoscale" type="boolean" _gui-text="Isotropic scaling">false</param>

<_param name="isoscaledesc" type="description">When set, Isotropic scaling uses smallest of width/xrange or height/yrange</_param>

<param name="polar" type="boolean" _gui-text="Use polar coordinates">true</param>

</page>

<page name="use" _gui-text="Use">

<_param name="funcplotuse" type="description" xml:space="preserve">Select a rectangle before calling the extension,

it will determine X and Y scales. If you wish to fill the area, then add x-axis endpoints.

With polar coordinates:

Start and end X values define the angle range in radians.

X scale is set so that left and right edges of rectangle are at +/-1.

Isotropic scaling is disabled.

First derivative is always determined numerically.</_param>

</page>

<page name="desc" _gui-text="Functions">

<_param name="pythonfunctions" type="description" xml:space="preserve">Standard Python math functions are available:

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.</_param>

</page>

</param>

<param name="fofx" type="string" _gui-text="Function:">exp(-x*x)</param>

<param name="fponum" type="boolean" _gui-text="Calculate first derivative numerically">true</param>

<param name="fpofx" type="string" _gui-text="First derivative:">x</param>

<param name="clip" type="boolean" _gui-text="Clip with rectangle">false</param>

<param name="remove" type="boolean" _gui-text="Remove rectangle">true</param>

<param name="drawaxis" type="boolean" _gui-text="Draw Axes">false</param>

<param name="endpts" type="boolean" _gui-text="Add x-axis endpoints">false</param>

<effect>

<object-type>rect</object-type>

<effects-menu>

<submenu _name="Render"/>

</effects-menu>

</effect>

<script>

<command reldir="extensions" interpreter="python">funcplot.py</command>

</script>

</inkscape-extension>