Tikz picture is not shown in the paper

I have a tikz-picture. It is a graph. I have created a presentation and it is seen in the presentation correct. Thereby, the code is correct. But now I am making a degree work and I have

\documentclass{report}


But the picture is not shown. Here is the code:

\begin{tikzpicture}
\tikzset{VertexStyleOrange/.style = {
shape         = circle,
ball color     = orange,
inner sep      = 1pt,
outer sep      = 0pt,
minimum size   = 1 pt}}
\tikzset{VertexStyleBlue/.style = {
shape          = circle,
ball color     = blue,
inner sep      = 1pt,
outer sep      = 0pt,
minimum size   = 1 pt}}
\tikzset{EdgeStyleBlue/.style   = {thick,
double  = blue,
double distance = 1pt}}
\tikzset{EdgeStyle/.style   = {thick,
double  = orange,
double distance = 1pt}}

\node at ( -3.5,3)[VertexStyleOrange](0) {0};
\node at ( -5,1)[VertexStyleBlue](1) {1};
\node at ( -2,1)[VertexStyleBlue](2) {2};
\node at ( -2,-1)[VertexStyleBlue](3) {3};
\node at ( -5,-1)[VertexStyleBlue](4) {4};
\node at ( -3.5,-3)[VertexStyleOrange](5) {5};
\node at ( 3.5,3)[VertexStyleOrange](6) {0};
\node at ( 5,1)[VertexStyleBlue](7) {1};
\node at ( 2,1)[VertexStyleBlue](8) {2};
\node at ( 2,-1)[VertexStyleBlue](9) {3};
\node at ( 5,-1)[VertexStyleBlue](10) {4};
\node at ( 3.5,-3)[VertexStyleOrange](11) {5};

\draw[EdgeStyle](1) to node{}(0);
\draw[EdgeStyle](2) to node{}(0);
\draw[EdgeStyleBlue](1) to node{}(2);
\draw[EdgeStyleBlue](2) to node{}(3);
\draw[EdgeStyleBlue](3) to node{}(4);
\draw[EdgeStyleBlue](4) to node{}(1);
\draw[EdgeStyleBlue](1) to node{}(3);
\draw[EdgeStyleBlue](4) to node{}(2);
\draw[EdgeStyle](5) to node{}(3);
\draw[EdgeStyle](4) to node{}(5);

\draw[EdgeStyle](11) to node{}(7);
\draw[EdgeStyle](11) to node{}(8);
\draw[EdgeStyle](6) to node{}(10);
\draw[EdgeStyle](6) to node{}(9);

\end{tikzpicture}


Instead of it I see a little black point. I pasted it in all places of document, but the result was the same - a little black stain. What is the reason?

Here is the example:

\documentclass[a4paper,14pt]{report}
\usepackage[T2A]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{amssymb,amsfonts,amsmath,mathtext,cite,enumerate,float}
\usepackage[dvips]{graphicx}
\usepackage[14pt]{extsizes}
\usepackage{times}
\usepackage{hyperref}
\usepackage{tikz}
\usepackage[labelsep=period]{caption}
\usepackage{indentfirst}
\usepackage{makecell}
\DeclareCaptionLabelSeparator{par}{\par}
\captionsetup{labelsep=par,justification=centering}
\graphicspath{{images/}}

\newcommand\tablecaption[1]{
\captionsetup{labelsep=par,justification=centering}
\caption{#1}
}

\renewcommand{\baselinestretch}{1.5}\normalsize
\makeatletter
\renewcommand{\@biblabel}[1]{#1.}
\makeatother

\usepackage{geometry}
\geometry{left=3cm}
\geometry{right=1cm}
\geometry{top=2cm}
\geometry{bottom=2cm}

\setcounter{tocdepth}{2}
\setlength{\parindent}{1.5cm}

\renewcommand{\theenumi}{\arabic{enumi}}
\renewcommand{\labelenumi}{\arabic{enumi}}
\renewcommand{\theenumii}{.\arabic{enumii}}
\renewcommand{\labelenumii}{\arabic{enumi}.\arabic{enumii}.}
\renewcommand{\theenumiii}{.\arabic{enumiii}}
\renewcommand{\labelenumiii}{\arabic{enumi}.\arabic{enumii}.\arabic{enumiii}.}
\renewcommand{\rmdefault}{ftm}

\begin{document}
\renewcommand\chaptername{Chapter}
\tableofcontents
\input{Introduction}
\end{document}


There is another code in "introduction":

\chapter{Introduction}
I want to tell you about smth...

\begin{center}
\begin{tikzpicture}
\tikzset{VertexStyleOrange/.style = {
shape         = circle,
ball color     = orange,
inner sep      = 1pt,
outer sep      = 0pt,
minimum size   = 1 pt}}
\tikzset{VertexStyleBlue/.style = {
shape          = circle,
ball color     = blue,
inner sep      = 1pt,
outer sep      = 0pt,
minimum size   = 1 pt}}
\tikzset{EdgeStyleBlue/.style   = {thick,
double  = blue,
double distance = 1pt}}
\tikzset{EdgeStyle/.style   = {thick,
double  = orange,
double distance = 1pt}}

\node at ( -3.5,3)[VertexStyleOrange](0) {0};
\node at ( -5,1)[VertexStyleBlue](1) {1};
\node at ( -2,1)[VertexStyleBlue](2) {2};
\node at ( -2,-1)[VertexStyleBlue](3) {3};
\node at ( -5,-1)[VertexStyleBlue](4) {4};
\node at ( -3.5,-3)[VertexStyleOrange](5) {5};
\node at ( 3.5,3)[VertexStyleOrange](6) {0};
\node at ( 5,1)[VertexStyleBlue](7) {1};
\node at ( 2,1)[VertexStyleBlue](8) {2};
\node at ( 2,-1)[VertexStyleBlue](9) {3};
\node at ( 5,-1)[VertexStyleBlue](10) {4};
\node at ( 3.5,-3)[VertexStyleOrange](11) {5};

\draw[EdgeStyle](1) to node{}(0);
\draw[EdgeStyle](2) to node{}(0);
\draw[EdgeStyleBlue](1) to node{}(2);
\draw[EdgeStyleBlue](2) to node{}(3);
\draw[EdgeStyleBlue](3) to node{}(4);
\draw[EdgeStyleBlue](4) to node{}(1);
\draw[EdgeStyleBlue](1) to node{}(3);
\draw[EdgeStyleBlue](4) to node{}(2);
\draw[EdgeStyle](5) to node{}(3);
\draw[EdgeStyle](4) to node{}(5);

\draw[EdgeStyle](11) to node{}(7);
\draw[EdgeStyle](11) to node{}(8);
\draw[EdgeStyle](6) to node{}(10);
\draw[EdgeStyle](6) to node{}(9);

\end{tikzpicture}
\end{center}


Even after deleting \begin{center} the picture is not shown

-
Maybe you forgot to load tikz. I've just tried your code and for me works. –  Claudio Fiandrino Apr 25 '12 at 12:01
You need to give us a minimal working example that demonstrates the issue that you're having. Without it, we can't see what packages you're using etc. –  Mark S. Everitt Apr 25 '12 at 12:09
I have added an example –  user565447 Apr 25 '12 at 12:20
Try removing the dvips option from graphicx. –  Torbjørn T. Apr 25 '12 at 13:18
that was the reason, thank you very much! –  user565447 Apr 25 '12 at 19:26

Works perfectly but you can modify your code a little bit

\documentclass[11pt]{report}
\usepackage{tikz}
\usetikzlibrary{%
arrows,
calc
}

\begin{document}
\chapter{Introduction}
I want to tell you about smth...

\begin{center}
\begin{tikzpicture}
\tikzset{VertexStyle/.style = {
shape         = circle,
ball color     = #1,
inner sep      = 1pt,
outer sep      = 0pt,
minimum size   = 1 pt}}

\tikzset{EdgeStyle/.style   = {thick,
double  = #1,
double distance = 1pt}}

\begin{scope}[every node/.style={VertexStyle=blue}]
\node at ( -5,1)  (1) {1};
\node at ( -2,1)  (2) {2};
\node at ( -2,-1) (3) {3};
\node at ( -5,-1) (4) {4};
\node at ( 3.5,3) (6) {0};
\node at ( 5,1)   (7) {1};
\node at ( 2,1)   (8) {2};
\node at ( 2,-1)  (9) {3};
\node at ( 5,-1)  (10) {4};
\end{scope}

\begin{scope}[every node/.style={VertexStyle=orange}]
\node at ( -3.5,3)  (0) {0};
\node at ( -3.5,-3) (5) {5};
\node at ( 3.5,3)   (6) {0};
\node at ( 3.5,-3)  (11) {5};
\end{scope}

\begin{scope}
\draw[EdgeStyle=blue]
(1) to  (2)
(2) to  (3)
(3) to  (4)
(4) to  (1)
(1) to  (3)
(4) to  (2);
\end{scope}

\begin{scope}
\draw[EdgeStyle=orange]
(1)     to  (0)
(2)     to  (0)
(5)     to  (3)
(4)     to  (5)
(11)    to  (7)
(11)    to  (8)
(6)     to  (10)
(6)     to  (9);
\end{scope}

\end{tikzpicture}
\end{center}
\end{document}


-
tkz-graph can simplify this kind of code –  Alain Matthes Apr 25 '12 at 13:34