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fading logoDear Beamer Experts,
I'm preparing a beamer style to be used in my lab. The idea is to have the lab logo in the bottom right corner. The logo is in TiKZ and I include it as a pdf through \includegraphics in my outer theme. The problem is that the logo's colors are too vivid and when some text finish above the logo is quite unreadable. I'd like to fade it to a sort of watermark but I don't know how to get the effect without using gimp or similar. Do you have any ideas? Thank you in advance for the help Walter -- Walter Cazzola, PhD - Assistant Professor, DICo, University of Milano E-mail cazzola@... Ph.: +39 02 503 16300 Fax: +39 02 503 16253 · · · ---------------------------- · · · ---------------------------- · · · ... recursive: adjective, see recursive ... · · · ---------------------------- · · · ---------------------------- · · · ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Latex-beamer-users mailing list Latex-beamer-users@... https://lists.sourceforge.net/lists/listinfo/latex-beamer-users |
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Re: fading logoOn Thu, Aug 6, 2009 at 12:07 AM, Walter Cazzola<cazzola@...> wrote:
> Dear Beamer Experts, > I'm preparing a beamer style to be used in my lab. > > The idea is to have the lab logo in the bottom right corner. The logo is > in TiKZ and I include it as a pdf through \includegraphics in my outer > theme. > > The problem is that the logo's colors are too vivid and when some text > finish above the logo is quite unreadable. I'd like to fade it to a sort > of watermark but I don't know how to get the effect without using gimp > or similar. > > Do you have any ideas? > > Thank you in advance for the help > For fading your logo you can use the xxcolor package bundled with PGF. It provides a colormixin environment that lets you alter colors. Her is a simple example: %%%% % Source: http://www.texample.net/tikz/examples/rotated-triangle/ % Credits: Alain Matthes and Martin Scharrer \documentclass{article} \usepackage[usenames,dvipsnames]{xcolor} \usepackage{tikz,ifthen,xxcolor} \pagestyle{empty} \begin{document} \begin{tikzpicture}[scale=0.5] \coordinate (A) at (0,0); \coordinate (B) at (-60:12cm); \coordinate (C) at (240:12cm); \foreach \density in {20,30,...,160}{% \draw[fill=MidnightBlue!\density] (A)--(B)--(C)--cycle; \path (A) coordinate (X) -- (B) coordinate[pos=.15](A) -- (C) coordinate[pos=.15](B) -- (X) coordinate[pos=.15](C); } \end{tikzpicture} % \begin{colormixin}{25!white} \begin{tikzpicture}[scale=0.5] \coordinate (A) at (0,0); \coordinate (B) at (-60:12cm); \coordinate (C) at (240:12cm); \foreach \density in {20,30,...,160}{% \draw[fill=MidnightBlue!\density] (A)--(B)--(C)--cycle; \path (A) coordinate (X) -- (B) coordinate[pos=.15](A) -- (C) coordinate[pos=.15](B) -- (X) coordinate[pos=.15](C); } \end{tikzpicture} \end{colormixin} \end{document} \documentclass{minimal} \usepackage{tikz} \usetikzlibrary{scopes} \begin{document} \def\barnevogn{ \draw (0,0) -- (1,1) -- (2,0) -- cycle; } \begin{tikzpicture} \barnevogn \node {Hei}; \begin{scope}[shift={(1,1)}] \barnevogn \end{scope} \end{tikzpicture} % Alternativ syntax som bruker scopes-biblioteket \begin{tikzpicture} \barnevogn \node {Hei}; {[shift={(1,-1)}] \barnevogn } \end{tikzpicture} % Enda et alternativ \def\barnevognII{ \begin{tikzpicture} \draw (0,0) -- (1,1) node {Hei} -- (2,0) -- cycle; \end{tikzpicture} } \begin{tikzpicture} \node[draw] {\barnevognII}; \node[draw, rotate=30] at (2,1) {\barnevognII}; \end{tikzpicture} \end{document} %%% See the Extended Color Support chapter in the PGF manual for details. - Kjell Magne Fauske ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Latex-beamer-users mailing list Latex-beamer-users@... https://lists.sourceforge.net/lists/listinfo/latex-beamer-users |
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Re: fading logoDear Kjell,
thanks for your prompt reply, I haven't considered to change (or produce two versions of) my logo since I want to include it as a pdf. Does The colormixin environment work with images (pdf) included via \includegraphics? Walter On Thu, 6 Aug 2009, Kjell Magne Fauske wrote: > On Thu, Aug 6, 2009 at 12:07 AM, Walter Cazzola<cazzola@...> wrote: >> Dear Beamer Experts, >> I'm preparing a beamer style to be used in my lab. >> >> The idea is to have the lab logo in the bottom right corner. The logo is >> in TiKZ and I include it as a pdf through \includegraphics in my outer >> theme. >> >> The problem is that the logo's colors are too vivid and when some text >> finish above the logo is quite unreadable. I'd like to fade it to a sort >> of watermark but I don't know how to get the effect without using gimp >> or similar. >> >> Do you have any ideas? >> >> Thank you in advance for the help >> > > For fading your logo you can use the xxcolor package bundled with PGF. > It provides a colormixin environment that lets you alter colors. Her > is a simple example: > > %%%% > % Source: http://www.texample.net/tikz/examples/rotated-triangle/ > % Credits: Alain Matthes and Martin Scharrer > \documentclass{article} > \usepackage[usenames,dvipsnames]{xcolor} > \usepackage{tikz,ifthen,xxcolor} > \pagestyle{empty} > \begin{document} > \begin{tikzpicture}[scale=0.5] > \coordinate (A) at (0,0); > \coordinate (B) at (-60:12cm); > \coordinate (C) at (240:12cm); > \foreach \density in {20,30,...,160}{% > \draw[fill=MidnightBlue!\density] (A)--(B)--(C)--cycle; > \path > (A) coordinate (X) > -- (B) coordinate[pos=.15](A) > -- (C) coordinate[pos=.15](B) > -- (X) coordinate[pos=.15](C); > } > \end{tikzpicture} > % > \begin{colormixin}{25!white} > \begin{tikzpicture}[scale=0.5] > \coordinate (A) at (0,0); > \coordinate (B) at (-60:12cm); > \coordinate (C) at (240:12cm); > \foreach \density in {20,30,...,160}{% > \draw[fill=MidnightBlue!\density] (A)--(B)--(C)--cycle; > \path > (A) coordinate (X) > -- (B) coordinate[pos=.15](A) > -- (C) coordinate[pos=.15](B) > -- (X) coordinate[pos=.15](C); > } > \end{tikzpicture} > \end{colormixin} > \end{document} > > > \documentclass{minimal} > > \usepackage{tikz} > \usetikzlibrary{scopes} > > \begin{document} > > \def\barnevogn{ > \draw (0,0) -- (1,1) -- (2,0) -- cycle; > } > > \begin{tikzpicture} > \barnevogn > \node {Hei}; > \begin{scope}[shift={(1,1)}] > \barnevogn > \end{scope} > \end{tikzpicture} > > % Alternativ syntax som bruker scopes-biblioteket > \begin{tikzpicture} > \barnevogn > \node {Hei}; > {[shift={(1,-1)}] > \barnevogn > } > \end{tikzpicture} > > % Enda et alternativ > \def\barnevognII{ > \begin{tikzpicture} > \draw (0,0) -- (1,1) node {Hei} -- (2,0) -- cycle; > \end{tikzpicture} > } > > \begin{tikzpicture} > \node[draw] {\barnevognII}; > \node[draw, rotate=30] at (2,1) {\barnevognII}; > \end{tikzpicture} > > \end{document} > %%% > > See the Extended Color Support chapter in the PGF manual for details. > > - Kjell Magne Fauske > Walter Cazzola, PhD - Assistant Professor, DICo, University of Milano E-mail cazzola@... Ph.: +39 02 503 16300 Fax: +39 02 503 16253 · · · ---------------------------- · · · ---------------------------- · · · ... recursive: adjective, see recursive ... · · · ---------------------------- · · · ---------------------------- · · · ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Latex-beamer-users mailing list Latex-beamer-users@... https://lists.sourceforge.net/lists/listinfo/latex-beamer-users |
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Re: fading logoOn Thu, Aug 6, 2009 at 12:20 PM, Walter Cazzola<cazzola@...> wrote:
> Dear Kjell, > thanks for your prompt reply, I haven't considered to change (or produce > two versions of) my logo since I want to include it as a pdf. > > Does The colormixin environment work with images (pdf) included via > \includegraphics? > I doubt that it works with external graphics. A workaround is to use transparency: ... \node[opacity=0.5] {\includegraphics{logo}}; .. This will work, but not all PDF viewers handle transparency correctly. Creating a separate dimmed version of the logo is probably safer. - Kjell Magne > Walter > > On Thu, 6 Aug 2009, Kjell Magne Fauske wrote: > >> On Thu, Aug 6, 2009 at 12:07 AM, Walter Cazzola<cazzola@...> >> wrote: >>> >>> Dear Beamer Experts, >>> I'm preparing a beamer style to be used in my lab. >>> >>> The idea is to have the lab logo in the bottom right corner. The logo is >>> in TiKZ and I include it as a pdf through \includegraphics in my outer >>> theme. >>> >>> The problem is that the logo's colors are too vivid and when some text >>> finish above the logo is quite unreadable. I'd like to fade it to a sort >>> of watermark but I don't know how to get the effect without using gimp >>> or similar. >>> >>> Do you have any ideas? >>> >>> Thank you in advance for the help >>> >> >> For fading your logo you can use the xxcolor package bundled with PGF. >> It provides a colormixin environment that lets you alter colors. Her >> is a simple example: >> >> %%%% >> % Source: http://www.texample.net/tikz/examples/rotated-triangle/ >> % Credits: Alain Matthes and Martin Scharrer >> \documentclass{article} >> \usepackage[usenames,dvipsnames]{xcolor} >> \usepackage{tikz,ifthen,xxcolor} >> \pagestyle{empty} >> \begin{document} >> \begin{tikzpicture}[scale=0.5] >> \coordinate (A) at (0,0); >> \coordinate (B) at (-60:12cm); >> \coordinate (C) at (240:12cm); >> \foreach \density in {20,30,...,160}{% >> \draw[fill=MidnightBlue!\density] (A)--(B)--(C)--cycle; >> \path >> (A) coordinate (X) >> -- (B) coordinate[pos=.15](A) >> -- (C) coordinate[pos=.15](B) >> -- (X) coordinate[pos=.15](C); >> } >> \end{tikzpicture} >> % >> \begin{colormixin}{25!white} >> \begin{tikzpicture}[scale=0.5] >> \coordinate (A) at (0,0); >> \coordinate (B) at (-60:12cm); >> \coordinate (C) at (240:12cm); >> \foreach \density in {20,30,...,160}{% >> \draw[fill=MidnightBlue!\density] (A)--(B)--(C)--cycle; >> \path >> (A) coordinate (X) >> -- (B) coordinate[pos=.15](A) >> -- (C) coordinate[pos=.15](B) >> -- (X) coordinate[pos=.15](C); >> } >> \end{tikzpicture} >> \end{colormixin} >> \end{document} >> >> >> \documentclass{minimal} >> >> \usepackage{tikz} >> \usetikzlibrary{scopes} >> >> \begin{document} >> >> \def\barnevogn{ >> \draw (0,0) -- (1,1) -- (2,0) -- cycle; >> } >> >> \begin{tikzpicture} >> \barnevogn >> \node {Hei}; >> \begin{scope}[shift={(1,1)}] >> \barnevogn >> \end{scope} >> \end{tikzpicture} >> >> % Alternativ syntax som bruker scopes-biblioteket >> \begin{tikzpicture} >> \barnevogn >> \node {Hei}; >> {[shift={(1,-1)}] >> \barnevogn >> } >> \end{tikzpicture} >> >> % Enda et alternativ >> \def\barnevognII{ >> \begin{tikzpicture} >> \draw (0,0) -- (1,1) node {Hei} -- (2,0) -- cycle; >> \end{tikzpicture} >> } >> >> \begin{tikzpicture} >> \node[draw] {\barnevognII}; >> \node[draw, rotate=30] at (2,1) {\barnevognII}; >> \end{tikzpicture} >> >> \end{document} >> %%% >> >> See the Extended Color Support chapter in the PGF manual for details. >> >> - Kjell Magne Fauske >> > > -- > Walter Cazzola, PhD - Assistant Professor, DICo, University of Milano > E-mail cazzola@... Ph.: +39 02 503 16300 Fax: +39 02 503 16253 > · · · ---------------------------- · · · ---------------------------- · · · > ... recursive: adjective, see recursive ... > · · · ---------------------------- · · · ---------------------------- · · · ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Latex-beamer-users mailing list Latex-beamer-users@... https://lists.sourceforge.net/lists/listinfo/latex-beamer-users |
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Re: fading logoWalter Cazzola schrieb:
> thanks for your prompt reply, I haven't considered to change (or produce > two versions of) my logo since I want to include it as a pdf. > > Does The colormixin environment work with images (pdf) included via > \includegraphics? you can get the same without colormixin: \begin{tikzpicture}[scale=0.5] \coordinate (A) at (0,0); \coordinate (B) at (-60:12cm); \coordinate (C) at (240:12cm); \foreach \density in {20,30,...,160}{% \draw[black!25,fill=MidnightBlue!\density!white!25] (A)--(B)--(C)--cycle; \path (A) coordinate (X) -- (B) coordinate[pos=.15](A) -- (C) coordinate[pos=.15](B) -- (X) coordinate[pos=.15](C); } \end{tikzpicture} Herbert ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Latex-beamer-users mailing list Latex-beamer-users@... https://lists.sourceforge.net/lists/listinfo/latex-beamer-users |
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Re: fading logoOn Thu, 6 Aug 2009, Kjell Magne Fauske wrote:
> Creating a separate dimmed version of the logo is probably safer. At last I've created a dimmed version of the logo, thanks for the help. Walter -- Walter Cazzola, PhD - Assistant Professor, DICo, University of Milano E-mail cazzola@... Ph.: +39 02 503 16300 Fax: +39 02 503 16253 · · · ---------------------------- · · · ---------------------------- · · · ... recursive: adjective, see recursive ... · · · ---------------------------- · · · ---------------------------- · · · ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Latex-beamer-users mailing list Latex-beamer-users@... https://lists.sourceforge.net/lists/listinfo/latex-beamer-users |
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