propagated some more fixes from 2.3 branch to the trunk

doc/conf.py

@@ -170,7 +170,7 @@ htmlhelp_basename = 'opencv'
 
 # OpenCV docs use some custom LaTeX macros in the formulae. Make sure we include the definitions
 pngmath_latex_preamble = r"""
-\usepackage{amssymb}\usepackage{amsmath}\usepackage{bbm}
+\usepackage{euler}\usepackage{amssymb}\usepackage{amsmath}\usepackage{bbm}
 \newcommand{\matTT}[9]{
 \[
 \left|\begin{array}{ccc}
@@ -223,13 +223,7 @@ pngmath_latex_preamble = r"""
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass [howto/manual]).
 latex_documents = [
-  ('modules/refman', 'opencv2refman_cpp.tex', u'The OpenCV 2.x C++ Reference Manual',
-   u'', 'manual'),
-  ('doc/opencv2/py/py_index', 'opencv2refman_py.tex', u'The OpenCV 2.x Python Reference Manual',
-   u'', 'manual'), 
-  ('doc/opencv1/c/c_index', 'opencv1refman_c.tex', u'The OpenCV 1.x C Reference Manual',
-   u'', 'manual'),
-  ('doc/opencv1/py/py_index', 'opencv1refman_py.tex', u'The OpenCV 1.x Python Reference Manual',
+  ('modules/refman', 'opencv2refman.tex', u'The OpenCV Reference Manual',
    u'', 'manual'),
   ('doc/user_guide/user_guide', 'opencv_user.tex', u'The OpenCV User Guide',
    u'', 'manual'), 
@@ -237,7 +231,13 @@ latex_documents = [
    u'', 'manual'), 
 ]
 
-latex_elements = {'preamble': '\usepackage{mymath}\usepackage{amssymb}\usepackage{amsmath}\usepackage{bbm}\setcounter{secnumdepth}{1}'}
+preamble ="""
+\usepackage{euler}
+\usepackage[scaled=0.85]{beramono}
+\usepackage{mymath}\usepackage{amssymb}\usepackage{amsmath}\usepackage{bbm}\setcounter{secnumdepth}{1}
+"""
+
+latex_elements = {'preamble': preamble}
 
 # The name of an image file (relative to this directory) to place at the top of
 # the title page.