Why does the iterator in foreach not work?












2















I've split an animated GIF into the frames and saved them as a PNG sequence. I use the beamer class and want to load the images from the sequence, replacing each other without an autostart animation.



begin{frame}frametitle{FooBar}
foreach x in {0,...,5} {
includegraphics<x+1>[width=0.95textwidth]{dbgp-setup2-x.png}
}
end{frame}


The compiler output says that



Latexmk: Missing input file: 'dbgp-setup2-.png' from line



The filename should be dbgp-setup2-0.png, dbgp-setup2-1.png etc.. Why does x not work?










share|improve this question




















  • 2





    Welcome! Try foreach x [count=y] in {0,...,5} { includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x.png} } The parser does not know that it should compute the argument of <....>, so you have to do that.

    – marmot
    Feb 28 at 0:29













  • Are you sure dbgp-setup2-0.png, dbgp-setup2-1.png, ... are in the working folder?

    – Werner
    Feb 28 at 1:00











  • @Werner yes they are. I've included graphicspath{ {./img/} } before. The package graphicx is also loaded.

    – Christian
    Feb 28 at 21:31











  • @Christian: The solution to the question seem to be related to foreach that isn't defined. As such, the x isn't defined, leading to the missing number in the image reference. For future reference, include a complete, yet minimal example that allows us to replicate the behaviour. Such a minimal, working example (MWE) should start with documentclass and end with end{document} and allow the community to copy-and-paste-and-compile and see exactly what you're seeing. For that, use images from mwe and lipsum text, if needed.

    – Werner
    Feb 28 at 22:23
















2















I've split an animated GIF into the frames and saved them as a PNG sequence. I use the beamer class and want to load the images from the sequence, replacing each other without an autostart animation.



begin{frame}frametitle{FooBar}
foreach x in {0,...,5} {
includegraphics<x+1>[width=0.95textwidth]{dbgp-setup2-x.png}
}
end{frame}


The compiler output says that



Latexmk: Missing input file: 'dbgp-setup2-.png' from line



The filename should be dbgp-setup2-0.png, dbgp-setup2-1.png etc.. Why does x not work?










share|improve this question




















  • 2





    Welcome! Try foreach x [count=y] in {0,...,5} { includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x.png} } The parser does not know that it should compute the argument of <....>, so you have to do that.

    – marmot
    Feb 28 at 0:29













  • Are you sure dbgp-setup2-0.png, dbgp-setup2-1.png, ... are in the working folder?

    – Werner
    Feb 28 at 1:00











  • @Werner yes they are. I've included graphicspath{ {./img/} } before. The package graphicx is also loaded.

    – Christian
    Feb 28 at 21:31











  • @Christian: The solution to the question seem to be related to foreach that isn't defined. As such, the x isn't defined, leading to the missing number in the image reference. For future reference, include a complete, yet minimal example that allows us to replicate the behaviour. Such a minimal, working example (MWE) should start with documentclass and end with end{document} and allow the community to copy-and-paste-and-compile and see exactly what you're seeing. For that, use images from mwe and lipsum text, if needed.

    – Werner
    Feb 28 at 22:23














2












2








2








I've split an animated GIF into the frames and saved them as a PNG sequence. I use the beamer class and want to load the images from the sequence, replacing each other without an autostart animation.



begin{frame}frametitle{FooBar}
foreach x in {0,...,5} {
includegraphics<x+1>[width=0.95textwidth]{dbgp-setup2-x.png}
}
end{frame}


The compiler output says that



Latexmk: Missing input file: 'dbgp-setup2-.png' from line



The filename should be dbgp-setup2-0.png, dbgp-setup2-1.png etc.. Why does x not work?










share|improve this question
















I've split an animated GIF into the frames and saved them as a PNG sequence. I use the beamer class and want to load the images from the sequence, replacing each other without an autostart animation.



begin{frame}frametitle{FooBar}
foreach x in {0,...,5} {
includegraphics<x+1>[width=0.95textwidth]{dbgp-setup2-x.png}
}
end{frame}


The compiler output says that



Latexmk: Missing input file: 'dbgp-setup2-.png' from line



The filename should be dbgp-setup2-0.png, dbgp-setup2-1.png etc.. Why does x not work?







foreach






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Feb 28 at 22:25









Werner

446k699871692




446k699871692










asked Feb 28 at 0:24









ChristianChristian

132




132








  • 2





    Welcome! Try foreach x [count=y] in {0,...,5} { includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x.png} } The parser does not know that it should compute the argument of <....>, so you have to do that.

    – marmot
    Feb 28 at 0:29













  • Are you sure dbgp-setup2-0.png, dbgp-setup2-1.png, ... are in the working folder?

    – Werner
    Feb 28 at 1:00











  • @Werner yes they are. I've included graphicspath{ {./img/} } before. The package graphicx is also loaded.

    – Christian
    Feb 28 at 21:31











  • @Christian: The solution to the question seem to be related to foreach that isn't defined. As such, the x isn't defined, leading to the missing number in the image reference. For future reference, include a complete, yet minimal example that allows us to replicate the behaviour. Such a minimal, working example (MWE) should start with documentclass and end with end{document} and allow the community to copy-and-paste-and-compile and see exactly what you're seeing. For that, use images from mwe and lipsum text, if needed.

    – Werner
    Feb 28 at 22:23














  • 2





    Welcome! Try foreach x [count=y] in {0,...,5} { includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x.png} } The parser does not know that it should compute the argument of <....>, so you have to do that.

    – marmot
    Feb 28 at 0:29













  • Are you sure dbgp-setup2-0.png, dbgp-setup2-1.png, ... are in the working folder?

    – Werner
    Feb 28 at 1:00











  • @Werner yes they are. I've included graphicspath{ {./img/} } before. The package graphicx is also loaded.

    – Christian
    Feb 28 at 21:31











  • @Christian: The solution to the question seem to be related to foreach that isn't defined. As such, the x isn't defined, leading to the missing number in the image reference. For future reference, include a complete, yet minimal example that allows us to replicate the behaviour. Such a minimal, working example (MWE) should start with documentclass and end with end{document} and allow the community to copy-and-paste-and-compile and see exactly what you're seeing. For that, use images from mwe and lipsum text, if needed.

    – Werner
    Feb 28 at 22:23








2




2





Welcome! Try foreach x [count=y] in {0,...,5} { includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x.png} } The parser does not know that it should compute the argument of <....>, so you have to do that.

– marmot
Feb 28 at 0:29







Welcome! Try foreach x [count=y] in {0,...,5} { includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x.png} } The parser does not know that it should compute the argument of <....>, so you have to do that.

– marmot
Feb 28 at 0:29















Are you sure dbgp-setup2-0.png, dbgp-setup2-1.png, ... are in the working folder?

– Werner
Feb 28 at 1:00





Are you sure dbgp-setup2-0.png, dbgp-setup2-1.png, ... are in the working folder?

– Werner
Feb 28 at 1:00













@Werner yes they are. I've included graphicspath{ {./img/} } before. The package graphicx is also loaded.

– Christian
Feb 28 at 21:31





@Werner yes they are. I've included graphicspath{ {./img/} } before. The package graphicx is also loaded.

– Christian
Feb 28 at 21:31













@Christian: The solution to the question seem to be related to foreach that isn't defined. As such, the x isn't defined, leading to the missing number in the image reference. For future reference, include a complete, yet minimal example that allows us to replicate the behaviour. Such a minimal, working example (MWE) should start with documentclass and end with end{document} and allow the community to copy-and-paste-and-compile and see exactly what you're seeing. For that, use images from mwe and lipsum text, if needed.

– Werner
Feb 28 at 22:23





@Christian: The solution to the question seem to be related to foreach that isn't defined. As such, the x isn't defined, leading to the missing number in the image reference. For future reference, include a complete, yet minimal example that allows us to replicate the behaviour. Such a minimal, working example (MWE) should start with documentclass and end with end{document} and allow the community to copy-and-paste-and-compile and see exactly what you're seeing. For that, use images from mwe and lipsum text, if needed.

– Werner
Feb 28 at 22:23










2 Answers
2






active

oldest

votes


















5














The parser does not parse x+1, so you need to do this yourself. In this case x+1 coincides with the count, so we can use this. (Of course I do not have your images so I renamed some standard images.)



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x [count=y] in {0,...,3} {
includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x}
}
end{frame}
end{document}


enter image description here






share|improve this answer



















  • 1





    I made two mistakes. The first one was not including usepackage{pgffor} and the second one was the one with x+1. Thank you, everything's working fine now!

    – Christian
    Feb 28 at 21:46











  • @Christian Glad to hear! (The first one is hard to detect since you did not show your preamble.)

    – marmot
    Feb 28 at 21:47



















0














I'm not sure why doing the thing so complicated:



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x in {0,...,3} {%
includegraphics<+>[width=0.95textwidth]{dbgp-setup2-x}%
}
end{frame}
end{document}


enter image description here






share|improve this answer
























  • Excellent! What does the <+> exactly do? There is another detail that keeps the following images in position: %

    – Christian
    Mar 1 at 0:47











  • @Christian It just tells beamer to use the object in another overlay

    – egreg
    Mar 1 at 10:44











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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









5














The parser does not parse x+1, so you need to do this yourself. In this case x+1 coincides with the count, so we can use this. (Of course I do not have your images so I renamed some standard images.)



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x [count=y] in {0,...,3} {
includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x}
}
end{frame}
end{document}


enter image description here






share|improve this answer



















  • 1





    I made two mistakes. The first one was not including usepackage{pgffor} and the second one was the one with x+1. Thank you, everything's working fine now!

    – Christian
    Feb 28 at 21:46











  • @Christian Glad to hear! (The first one is hard to detect since you did not show your preamble.)

    – marmot
    Feb 28 at 21:47
















5














The parser does not parse x+1, so you need to do this yourself. In this case x+1 coincides with the count, so we can use this. (Of course I do not have your images so I renamed some standard images.)



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x [count=y] in {0,...,3} {
includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x}
}
end{frame}
end{document}


enter image description here






share|improve this answer



















  • 1





    I made two mistakes. The first one was not including usepackage{pgffor} and the second one was the one with x+1. Thank you, everything's working fine now!

    – Christian
    Feb 28 at 21:46











  • @Christian Glad to hear! (The first one is hard to detect since you did not show your preamble.)

    – marmot
    Feb 28 at 21:47














5












5








5







The parser does not parse x+1, so you need to do this yourself. In this case x+1 coincides with the count, so we can use this. (Of course I do not have your images so I renamed some standard images.)



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x [count=y] in {0,...,3} {
includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x}
}
end{frame}
end{document}


enter image description here






share|improve this answer













The parser does not parse x+1, so you need to do this yourself. In this case x+1 coincides with the count, so we can use this. (Of course I do not have your images so I renamed some standard images.)



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x [count=y] in {0,...,3} {
includegraphics<y>[width=0.95textwidth]{dbgp-setup2-x}
}
end{frame}
end{document}


enter image description here







share|improve this answer












share|improve this answer



share|improve this answer










answered Feb 28 at 0:42









marmotmarmot

106k5129243




106k5129243








  • 1





    I made two mistakes. The first one was not including usepackage{pgffor} and the second one was the one with x+1. Thank you, everything's working fine now!

    – Christian
    Feb 28 at 21:46











  • @Christian Glad to hear! (The first one is hard to detect since you did not show your preamble.)

    – marmot
    Feb 28 at 21:47














  • 1





    I made two mistakes. The first one was not including usepackage{pgffor} and the second one was the one with x+1. Thank you, everything's working fine now!

    – Christian
    Feb 28 at 21:46











  • @Christian Glad to hear! (The first one is hard to detect since you did not show your preamble.)

    – marmot
    Feb 28 at 21:47








1




1





I made two mistakes. The first one was not including usepackage{pgffor} and the second one was the one with x+1. Thank you, everything's working fine now!

– Christian
Feb 28 at 21:46





I made two mistakes. The first one was not including usepackage{pgffor} and the second one was the one with x+1. Thank you, everything's working fine now!

– Christian
Feb 28 at 21:46













@Christian Glad to hear! (The first one is hard to detect since you did not show your preamble.)

– marmot
Feb 28 at 21:47





@Christian Glad to hear! (The first one is hard to detect since you did not show your preamble.)

– marmot
Feb 28 at 21:47











0














I'm not sure why doing the thing so complicated:



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x in {0,...,3} {%
includegraphics<+>[width=0.95textwidth]{dbgp-setup2-x}%
}
end{frame}
end{document}


enter image description here






share|improve this answer
























  • Excellent! What does the <+> exactly do? There is another detail that keeps the following images in position: %

    – Christian
    Mar 1 at 0:47











  • @Christian It just tells beamer to use the object in another overlay

    – egreg
    Mar 1 at 10:44
















0














I'm not sure why doing the thing so complicated:



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x in {0,...,3} {%
includegraphics<+>[width=0.95textwidth]{dbgp-setup2-x}%
}
end{frame}
end{document}


enter image description here






share|improve this answer
























  • Excellent! What does the <+> exactly do? There is another detail that keeps the following images in position: %

    – Christian
    Mar 1 at 0:47











  • @Christian It just tells beamer to use the object in another overlay

    – egreg
    Mar 1 at 10:44














0












0








0







I'm not sure why doing the thing so complicated:



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x in {0,...,3} {%
includegraphics<+>[width=0.95textwidth]{dbgp-setup2-x}%
}
end{frame}
end{document}


enter image description here






share|improve this answer













I'm not sure why doing the thing so complicated:



documentclass{beamer}
usepackage{pgffor}
begin{document}
begin{frame}frametitle{FooBar}
foreach x in {0,...,3} {%
includegraphics<+>[width=0.95textwidth]{dbgp-setup2-x}%
}
end{frame}
end{document}


enter image description here







share|improve this answer












share|improve this answer



share|improve this answer










answered Feb 28 at 23:29









egregegreg

724k8819183223




724k8819183223













  • Excellent! What does the <+> exactly do? There is another detail that keeps the following images in position: %

    – Christian
    Mar 1 at 0:47











  • @Christian It just tells beamer to use the object in another overlay

    – egreg
    Mar 1 at 10:44



















  • Excellent! What does the <+> exactly do? There is another detail that keeps the following images in position: %

    – Christian
    Mar 1 at 0:47











  • @Christian It just tells beamer to use the object in another overlay

    – egreg
    Mar 1 at 10:44

















Excellent! What does the <+> exactly do? There is another detail that keeps the following images in position: %

– Christian
Mar 1 at 0:47





Excellent! What does the <+> exactly do? There is another detail that keeps the following images in position: %

– Christian
Mar 1 at 0:47













@Christian It just tells beamer to use the object in another overlay

– egreg
Mar 1 at 10:44





@Christian It just tells beamer to use the object in another overlay

– egreg
Mar 1 at 10:44


















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