[Tex/LaTex] Fill section between two circles ipe7

ipetechnical-drawing

I don't know if anyone here is skilled with Ipe7. A drawing tool for LaTeX.

I have two circles. One with a radius of X the other with radius X + Y, a wheel. Now I want the area between those circles filled with a color. How do I do this?

I tried joining the two circles but that fails saying: a selected object does not consists of open curves.

I also tried filling one circle and making the other opaque.

Anyone knows how to do this?

Edit: I fixed it currently by creation 2 arcs and connecting them together. However now I have a again a shape which can't be propperly joined… Hopefully someone can help me with this and explain how it is done good…

http://dl.dropbox.com/u/20782274/test2.ipe

Best Answer

To be able to draw complicated shapes you need to draw the sub paths individually and then connect them by selecting two subpaths and then by right clicking on any of them selecting the Join Paths option. That will apply the line join settings on the subpaths and end points are joined properly.

In your example your subpath endpoints are not exactly aligned hence they cannot be joined.

enter image description here

The easiest way to do this without such problems is to use the endpoint snapping and starting next subpath from the snapped position. If I redraw the upper part of the problematic curve by guessing and joining all the paths I obtain the following

enter image description here

Related Solutions

TikZ – How to Draw a Joining Line Between Two Pictures

You can name the nodes and, since the two nodes belong to different tikzpictures, you need to use the remember picture, overlay options to draw a line connecting them:

\documentclass{beamer}
\usepackage{tikz}

\begin{document}

 \begin{frame}

 \begin{columns}[c]
 \begin{column}{2cm}
    \begin{tikzpicture}[remember picture,overlay,scale=0.5] 
    \tikzstyle{level 1}=[sibling distance=10mm] 
    \node{f} 
    child{node{a}}
    child{node{f} child{node{b}} child{[red] node (f1) {f }   child{node{a}} child{node{f} child{node{b}}child{node{b}}}      }}
    ;
    \end{tikzpicture}
\end{column}    
\begin{column}{2cm}
   \begin{tikzpicture}[remember picture,overlay,scale=0.5] 
   \tikzstyle{level 1}=[sibling distance=10mm] 
   \node (f2) {f} 
    child{node{a}}
    child{node{f} child{node{b}} child{ node{f }   child{node{a}} child{node{g} child[missing] child{node{a}}}      }}
    ;
\draw (f1) .. controls (-3,3) .. (f2);
   \end{tikzpicture}
 \end{column}
 \end{columns}
\end{frame}

\end{document}

enter image description here

If both trees are part of the same tikzpicture, there's no need to use remember picture,overlay (but I don't know if using two environments is esential in your actual document).

[Tex/LaTex] Block with two inputs in pgf/TikZ

One possibility:

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{positioning}

\begin{document}

\begin{tikzpicture}[box/.style={draw,rounded corners,text width=2.5cm,align=center}]
\node[box] (a) {Psychoacustic Model};
\node[left=of a.170,font=\bfseries] (aux1) {Reference};
\node[left=of a.190,font=\bfseries] (aux2) {Degraded};
\node[box,right=of a] (b) {Cognitive Model};
\node[right=of b,font=\bfseries] (c) {Score};
\draw[->] (aux1) -- (a.170);
\draw[->] (aux2) -- (a.190);
\draw[->] (a) -- (b);
\draw[->] (b) -- (c);
\end{tikzpicture}

\end{document}

enter image description here

Best Answer

Related Solutions

TikZ – How to Draw a Joining Line Between Two Pictures

[Tex/LaTex] Block with two inputs in pgf/TikZ

Related Question