[Tex/LaTex] theta dot right place

Question

I have small problem:
how to get top of the symbol dot in the right place? With my code the result is like in the picture below:
What I want is like in this picture:

Here is the code:

\begin{equation}\label{eq:angspeed}
\overline{\boldsymbol{\upomega}}=\overline{\mathbf{G}}\dot{\boldsymbol{\theta}}
\end{equation}

The top lines are "good". Or with "\bar" the line is too short for omega and with \overline the line is too long, but better.

I use these packages:

\usepackage{upgreek}
\LoadClass[12pt,a4paper]{article}
%fonts and utf8
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{txfonts}
\usepackage{amsfonts,amssymb,amsbsy}

Answer 1

Loading also the bm package should immediately improve the situation.

Here's a minimal example:

\documentclass{article}
\usepackage{newtxtext,newtxmath}
\usepackage{upgreek}
\usepackage{amsmath,bm}

\begin{document}

\[
\bar{\boldsymbol{\upomega}}=
\bar{\mathbf{G}}\dot{\boldsymbol{\theta}}
\]

\end{document}

You can also use the shorthand \bm instead of \boldsymbol. I loaded NewTX instead of txfonts: it's the successor package and fixes several of the shortcomings of the original package.

I'm not sure I'd mix upgreek with NewTX, but the decision is yours.

The code \LoadClass should never be used in a document, it's only for class files.