Graphics, Figures & Tables ⇒ draw image of functions in horizontal

[jadhavboys]

hello friends,
i want to draw image of functions in horizontal way using curved arrow.
that is first i want a circle (i.e. solid unit disk in gray) then(curved arrow) xy plane with first and second qudrant highlited(grey color) then(curved arrow)xy plane with -ve x axis highlited then(curved arrow) xy plane with -ve x axis highlited from -1/4 to infinity.
regards

[Johannes_B]

I have absolutely no idea how the product should look like. I bet our drawing experts will feel the same. Please show us what you got so far by posting a minimal working example. An image, maybe even hand drawn, will also be needed.

[Stefan Kottwitz]

What are you using as drawing package? PStricks? TikZ? MetaPost? Something else?

As Johannes said, please show the code you already have, so not each reader has to write something new from scratch. (even without knowing, which package to use)

What is the problem part of the whole drawing? The circle? An arrow?

Stefan

[jadhavboys]

sorry for the confusion i am attaching the pictures what i want to plot,
please help me in this, i didnt got any idea how to do this
regards,

[Stefan Kottwitz]

That's not hard. I'll have a look later, at least it needs some time.
I hope you subscribed to the topic so you would get an email if there's a new answer, or have a look later here soon.

Btw. smaller images would be nice, the forum layout doesn't work so well with large images.

Stefan

[Stefan Kottwitz]

At TeXample.net there is a complex plane TikZ example sample by Martin Scharrer, I just added

\usetikzlibrary{patterns}

to get the option pattern=north east lines for filling a circle.

Code: Select all

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{patterns}
\begin{document}
\begin{tikzpicture}
    \begin{scope}[thick,font=\scriptsize]
    % Axes:
    % Are simply drawn using line with the `->` option to make them arrows:
    % The main labels of the axes can be places using `node`s:
    \draw [->] (-5,0) -- (5,0) node [above left]  {$\Re\{z\}$};
    \draw [->] (0,-5) -- (0,5) node [below right] {$\Im\{z\}$};

    % Axes labels:
    % Are drawn using small lines and labeled with `node`s. The placement can be set using options
    \iffalse% Single
    % If you only want a single label per axis side:
    \draw (1,-3pt) -- (1,3pt)   node [above] {$1$};
    \draw (-1,-3pt) -- (-1,3pt) node [above] {$-1$};
    \draw (-3pt,1) -- (3pt,1)   node [right] {$i$};
    \draw (-3pt,-1) -- (3pt,-1) node [right] {$-i$};
    \else% Multiple
    % If you want labels at every unit step:
    \foreach \n in {-4,...,-1,1,2,...,4}{%
        \draw (\n,-3pt) -- (\n,3pt)   node [above] {$\n$};
        \draw (-3pt,\n) -- (3pt,\n)   node [right] {$\n i$};
    }
    \fi
    \end{scope}
    % The circle is drawn with `(x,y) circle (radius)`
    % You can draw the outer border and fill the inner area differently.
    % Here I use gray, semitransparent filling to not cover the axes below the circle
    \draw [pattern=north east lines,semitransparent] (+1,-1) circle (3);
    % Place the equation into the circle:
    \node [below right,darkgray] at (+1,-1) {$|z-1+i| \leq 3$};
\end{tikzpicture}
\end{document}

And this way you can draw a curved arrow with text above:

\draw (3,3) edge [-latex,bend left] node [above] {$\frac{1+z}{1-z}$} (4,3);

You can use this as a starting point for your drawings.

You can type texdoc pgf to open the TikZ manual, or download online: TikZ.

Stefan

[jadhavboys]

@stefan.. very thanks for your kind help,
i want to know how to draw squzeed circle as in second fig.

[Stefan Kottwitz]

I made it on TeXwelt using the hobby package:

Code: Select all

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{hobby}
\begin{document}
\begin{tikzpicture}
  \draw [thick, ->] (-3,0) -- (3,0) node [anchor=north west] {};
  \draw [thick, ->] (0,-3) -- (0,3) node [anchor=south east] {$\mathbf{C}$};

  \draw (0,2) to [closed, curve through = {(1.4,1.2) (1.5,1) (2,0)  (1.2,-0.2)
    (0,-1.4) (-1.5,-0.8) (-0.7,0) (-1.4,1) (-0.2,1.5)}] (0,2);

\end{tikzpicture}
\end{document}

set.png (3.18 KiB) Viewed 5577 times

Stefan

[jadhavboys]

there is an error that is.


can't find file `tikzlibraryhobby.code.tex'.
<argument> ...nput tikzlibrary\pgf@temp .code.tex
\catcode `\@ =\csname tikz...
l.3 \usetikzlibrary{hobby}

(Press Enter to retry, or Control-D to exit)
Please type another input file name
! Emergency stop.
<argument> ...nput tikzlibrary\pgf@temp .code.tex
\catcode `\@ =\csname tikz...
l.3 \usetikzlibrary{hobby}

! ==> Fatal error occurred, no output PDF file produced!

[Stefan Kottwitz]

You need to install the package, use your TeX package manager or visit the link above to CTAN.

Stefan