Punkte auf Ellipse ansprechen

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
\documentclass[a4paper,11pt]{article}
\usepackage{tikz}
\usetikzlibrary{
  calc,
  math,
  intersections
  }
\tikzset{
  dot/.style={circle,draw,fill=blue!50,inner sep=1pt},
  area/.style={draw=#1!80!black,fill=#1!80!black!10}
}
\newcommand\Ellipse[3]{%
  \begin{tikzpicture}[evaluate={\a=2;\b=1.5;}]
    \draw (0, 0) ellipse [x radius=\a,y radius=\b];
    \foreach[count=\i] \t in {#1,#2,#3}{
      \tikzmath{
        \ex=\a*cos(\t);
        \ey=\b*sin(\t);
        \ny0=(\b^2-\a^2)/\b^2*sin(\t);
      }
      \path(\ex,\ey)coordinate(n\i);
      \path[name path global=l\i,overlay]($(0,\ny0)!-1!(n\i)$)--(n\i);
    }
    \path[area=brown](n1)--(n2)--(n3)--cycle;
    \path[name intersections={of=l1 and l2,by=ns}];
    \foreach \i in {1,...,3}\draw (ns)--(n\i)node[dot]{};
    \node[dot]at(ns){};
  \end{tikzpicture}%
}
\begin{document}
\begin{figure}[htb]
  \centering
  \begin{minipage}[t]{.45\linewidth}
    \centering
    \Ellipse{-10}{102}{250}
  \end{minipage}%
  \hfill
  \begin{minipage}[t]{.45\linewidth}
    \centering
    \Ellipse{102}{197}{250}
  \end{minipage}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX