I want to create a Go stone in TikZ. "ball color" option in node style is almost OK.
Here is my result:

alt text

But I don't like the stones, they are "too balish". The "reflection" should be less spot-on and more ambient.

I could get such a result if I could manipulate both shading colors or shading curve. Can I do it in TikZ?

Here is what I want to achieve:

alt text

PS. Any ideas to render wood-like background w/o texture?

  • MAybe I should use inkscape to draw stone and use it in TikZ? Is it possible to import a drawing from inkspace to Tikz? – Łukasz Lew Aug 18 '10 at 14:14
  • You can easily with the traditional \includegraphics (which I use). pgf also offers something similar for this. – Leo Liu Aug 18 '10 at 14:21
  • But you have gotten pretty close to what you want just needs a bit of tweaking. – Leo Liu Aug 18 '10 at 14:21
  • Will \pgfimage allow you to position stone graphics at will? – Mikael Vejdemo-Johansson Aug 18 '10 at 14:27
  • The question regarding a wood-like background could be discussed in a separate question. It doesn't fit to the original question and its title. – Stefan Kottwitz Aug 18 '10 at 14:35

You can get an effect like the shading on the go stones in the picture with radial shading. I don't know how to get radial shading off-center, so some clipping is needed:

        \fill[black] (0,0) circle (0.5);
        \clip (0,0) circle (0.5);
        \shade[outer color=black, inner color=black!30] (-0.15,0.5) circle (0.7);

an example http://www.caramdir.at/uploads/tex.SE/go-black.png

The scope is needed in order to have the clipping only applied to the shading.

I had some time to kill and the following is the result:

go board example

This is produced with the following code


        stone/.style={drop shadow={shadow xshift=0.03, shadow yshift=-0.05}},
        black-highlight/.style={outer color=black!80, inner color=black!30},
        white-highlight/.style={outer color=white!70!black, inner color=white},
        \fill[brown!80] (-1,-1) rectangle (19,19);
        \draw[black] (0,0) grid (18,18);
        \draw[thick,black] (0,0) rectangle (18,18);
        \fill (3,3) circle (0.1);
        \fill (3,9) circle (0.1);
        \fill (3,15) circle (0.1);
        \fill (9,3) circle (0.1);
        \fill (9,9) circle (0.1);
        \fill (9,15) circle (0.1);
        \fill (15,3) circle (0.1);
        \fill (15,9) circle (0.1);
        \fill (15,15) circle (0.1);

        \fill[stone,#2-stone] (#3,#4) circle (0.45);
        \clip (#3,#4) circle (0.45);
        \shade[#2-highlight] (-0.15+#3,0.5+#4) circle (0.7);
    \node[#2-number] at (#3,#4) {\sffamily\bfseries{#1}};


The syntax for the goboard environment and \gostone command is modeled after the psgo package.

  • This is almost perfect! Can I create style for node that will look like that? Or do I have to create new command ? – Łukasz Lew Aug 18 '10 at 15:42
  • ball shading is an option. – Łukasz Lew Aug 18 '10 at 15:43
  • @Łukasz: I don't know how to do this as a node, but I updated the answer with some code to automate the drawing. – Caramdir Aug 18 '10 at 16:03

You could use \pgfdeclareradialshading to modify the ball shading.

For example, insert:


The "reflection" will be less spotty and more ambient than with the original code:

alt text

Adjust the color values according to your needs.

  • 1
    That looks great ;) – Leo Liu Aug 18 '10 at 14:37
  • If I don't want to overwrite the ball shading, but declare a new one with customizable color, do you know how to do it? I found several examples with some color hard coded into them, but I don't want to define a new shading for every color. – Tom Bombadil Dec 1 '15 at 10:06

This only concerns your additional question, e.g. how to get such a "wood like" background:



% parameters for the "wooden rectangle", chosen to be measures of a Go board

\begin{tikzpicture}[scale=0.5,spy using outlines={circle, size=7cm, connect spies}]
    %auto generated wood board  
    \filldraw[\backgroundcolor] (0,0) rectangle (\boardwidth,\boardheight);




    \foreach \x in {1,2,...,\numberoffibres}
    {   \fill[\fibrecolor] ($(\x*\segmentwidth-\segmentvariation,0) + (rand*\relativefibrevariation*\relativefibrethickness,0)$) 
        \foreach \y in {1,...,\fibresteps}
        {   -- ($(\x*\segmentwidth-\segmentvariation,\y*\stepheight) + (rand*\relativefibrevariation*\relativefibrethickness,0)$)
        -- ($(\x*\segmentwidth+\segmentvariation,\boardheight)+ (rand*\relativefibrevariation*\relativefibrethickness,0)$) 
        \foreach \y in {\fibresteps,...,0}
        {   -- ($(\x*\segmentwidth+\segmentvariation,\y*\stepheight) + (rand*\relativefibrevariation*\relativefibrethickness,0)$)
        -- cycle;
    \draw[thick] (0,0) rectangle (\boardwidth,\boardheight);

    % manually added stuff, only for Go board look  
    \draw (1,1) grid (19,19);
    \foreach \x in {4,10,16}
    {   \foreach \y in {4,10,16}
        {   \fill (\x,\y) circle (0.1);
    % spy for seeing the structure
    \spy[magnification=10,yellow] on (5.3,5.8) in node at (8,-8);


enter image description here

  • \filldraw[\backgroundcolor] arg, please use \colorlet or a TikZ style to define a color. – Martin Scharrer Nov 22 '18 at 9:47

For more realistic shadows use the code from @Caramdir but replace stone/.style={drop shadow={...}} by

    stone/.style={drop shadow={shadow xshift=0.03, shadow yshift=-0.05,
       fill=black, path fading={circle with fuzzy edge 15 percent}}},


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