Non scalable unit in tikz












9














Is there a non scalable unit in tikz?



I have the following picture,



    documentclass{report}

    usepackage{tikz}

    begin{document}

    begin{tikzpicture}[>=latex, scale=2]

    draw[->] (0,0) -- (2,1);

    filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}

                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};

    end{tikzpicture}

    end{document}


Some elements, like the line width, the arrowheads or the text aren't affected by the scale=2 option. I would like the circles to behave in the same fashion. Is this possible? I tried using different units for the circle radius (cm, pt, em) but I had no luck.






tikz-pgf scale







share|improve this question





























    9














    Is there a non scalable unit in tikz?



    I have the following picture,



        documentclass{report}
    
    usepackage{tikz}
    
    begin{document}
    
    begin{tikzpicture}[>=latex, scale=2]
    
    draw[->] (0,0) -- (2,1);
    
    filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
    
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
    
    end{tikzpicture}
    
    end{document}


    Some elements, like the line width, the arrowheads or the text aren't affected by the scale=2 option. I would like the circles to behave in the same fashion. Is this possible? I tried using different units for the circle radius (cm, pt, em) but I had no luck.






    tikz-pgf scale







    share|improve this question



























      9












      9








      9


      1





      Is there a non scalable unit in tikz?



      I have the following picture,



          documentclass{report}
      
    usepackage{tikz}
      
    begin{document}
      
    begin{tikzpicture}[>=latex, scale=2]
      
    draw[->] (0,0) -- (2,1);
      
    filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
      
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
      
    end{tikzpicture}
      
    end{document}


      Some elements, like the line width, the arrowheads or the text aren't affected by the scale=2 option. I would like the circles to behave in the same fashion. Is this possible? I tried using different units for the circle radius (cm, pt, em) but I had no luck.






      tikz-pgf scale







      share|improve this question















      Is there a non scalable unit in tikz?



      I have the following picture,



          documentclass{report}
      
    usepackage{tikz}
      
    begin{document}
      
    begin{tikzpicture}[>=latex, scale=2]
      
    draw[->] (0,0) -- (2,1);
      
    filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
      
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
      
    end{tikzpicture}
      
    end{document}


      Some elements, like the line width, the arrowheads or the text aren't affected by the scale=2 option. I would like the circles to behave in the same fashion. Is this possible? I tried using different units for the circle radius (cm, pt, em) but I had no luck.






      tikz-pgf scale




      tikz-pgf scale






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 11 '18 at 13:38









      jfbu

      46.1k66148




      46.1k66148










      asked Dec 11 '18 at 12:38









      mendus

      1065




      1065






















          2 Answers
          2






          active

          oldest

          votes


















          10














          You could use a node instead of a circle. nodes don't scale either:



           documentclass{report}
          
    usepackage{tikz}
          
    begin{document}
          
    begin{tikzpicture}[>=latex, scale=2]
          
    draw[->] (0,0) -- (2,1);
          
    filldraw   (0,0) node[circle,inner sep=0.025cm,fill=black]{} node[anchor=north] {$P$}
          
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
    end{tikzpicture}
          
    end{document}


          enter image description here






          share|improve this answer





















          • Is there any reason why you chose inner sep=0.025 and not 0 or any other number?
            – mendus
            Dec 12 '18 at 9:25










          • 0.025cm is half of 0.05cm, your wanted radius.
            – Ulrike Fischer
            Dec 12 '18 at 9:30










          • Oh, ok. I didn't realize the node was otherwise empty.
            – mendus
            Dec 12 '18 at 9:33



















          8














          Yes, scale really scales mainly distances, not line widths etc. UPDATE: I misread the question, sorry, and big thanks to Paul Paulsen for pointing this out. You can just divide out the scale factor in the circle radii.



          documentclass{report}
          
usepackage{tikz}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm/myscale] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm/myscale] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
begin{tikzpicture}[>=latex]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
end{document}


          enter image description here



          ORIGINAL ANSWER: Here I address how one can scale the line width with the distances. Note that I do not recommend using pgflowlevelsynccm here as it screws up the bounding box (which is why there are vspaces added), but I list it for completeness.



          documentclass{report}
          
usepackage[margin=1in]{geometry}
          
usepackage{tikz}
          
begin{document}
          
subsection*{Original post}
          
begin{tikzpicture}[>=latex, scale=2]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Using texttt{textbackslash pgflowlevelsynccm}}
          

          
vspace*{2cm}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgflowlevelsynccm
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
vspace*{1cm}
          

          
subsection*{Reading out transformation and applying it to lines etc.}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          

          
subsection*{Reading out transformation and applying it to lines etc. (2)}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Reading out transformation and applying it to lines etc. (3)}
          
begin{tikzpicture}[>=latex, scale=2,transform shape]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
end{document}


          enter image description here



          And I would draw the thing probably like this:



          documentclass[tikz,border=3.14mm]{standalone}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2,bullet/.style={transform shape,inner
          
sep=0.05cm,fill,circle}]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,shorten >=2pt,line width=myscale*pgflinewidth] 
          
(0,0) node[bullet,label=below:$P$]{}
          
   --         (2,1) node[bullet,label=below:$Q$]{};
          
end{tikzpicture}
          

          
end{document}


          enter image description here






          share|improve this answer























          • But the OP asks how to not scale the circles, not how to scale everything...
            – Paul Paulsen
            Dec 11 '18 at 21:37










          • @PaulPaulsen Very good point! Thanks a lot! (I had the opposite problem, i.e. wanted to scale the line width, some time ago, and was thinking this was asked here. But no, you are absolutely right, and I was too sloppy.)
            – marmot
            Dec 11 '18 at 21:57






          • 1




            +1, nice update and a cool way to deal with the problem :)
            – Paul Paulsen
            Dec 11 '18 at 21:59










          • While having to write /myscale can be a hindrance if there are many nodes, it allows not to scale any shape, so it is useful.
            – mendus
            Dec 12 '18 at 9:30











          Your Answer








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          2 Answers
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          2 Answers
          2






          active

          oldest

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          active

          oldest

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          active

          oldest

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          10














          You could use a node instead of a circle. nodes don't scale either:



           documentclass{report}
          
    usepackage{tikz}
          
    begin{document}
          
    begin{tikzpicture}[>=latex, scale=2]
          
    draw[->] (0,0) -- (2,1);
          
    filldraw   (0,0) node[circle,inner sep=0.025cm,fill=black]{} node[anchor=north] {$P$}
          
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
    end{tikzpicture}
          
    end{document}


          enter image description here






          share|improve this answer





















          • Is there any reason why you chose inner sep=0.025 and not 0 or any other number?
            – mendus
            Dec 12 '18 at 9:25










          • 0.025cm is half of 0.05cm, your wanted radius.
            – Ulrike Fischer
            Dec 12 '18 at 9:30










          • Oh, ok. I didn't realize the node was otherwise empty.
            – mendus
            Dec 12 '18 at 9:33
















          10














          You could use a node instead of a circle. nodes don't scale either:



           documentclass{report}
          
    usepackage{tikz}
          
    begin{document}
          
    begin{tikzpicture}[>=latex, scale=2]
          
    draw[->] (0,0) -- (2,1);
          
    filldraw   (0,0) node[circle,inner sep=0.025cm,fill=black]{} node[anchor=north] {$P$}
          
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
    end{tikzpicture}
          
    end{document}


          enter image description here






          share|improve this answer





















          • Is there any reason why you chose inner sep=0.025 and not 0 or any other number?
            – mendus
            Dec 12 '18 at 9:25










          • 0.025cm is half of 0.05cm, your wanted radius.
            – Ulrike Fischer
            Dec 12 '18 at 9:30










          • Oh, ok. I didn't realize the node was otherwise empty.
            – mendus
            Dec 12 '18 at 9:33














          10












          10








          10






          You could use a node instead of a circle. nodes don't scale either:



           documentclass{report}
          
    usepackage{tikz}
          
    begin{document}
          
    begin{tikzpicture}[>=latex, scale=2]
          
    draw[->] (0,0) -- (2,1);
          
    filldraw   (0,0) node[circle,inner sep=0.025cm,fill=black]{} node[anchor=north] {$P$}
          
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
    end{tikzpicture}
          
    end{document}


          enter image description here






          share|improve this answer












          You could use a node instead of a circle. nodes don't scale either:



           documentclass{report}
          
    usepackage{tikz}
          
    begin{document}
          
    begin{tikzpicture}[>=latex, scale=2]
          
    draw[->] (0,0) -- (2,1);
          
    filldraw   (0,0) node[circle,inner sep=0.025cm,fill=black]{} node[anchor=north] {$P$}
          
                (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
    end{tikzpicture}
          
    end{document}


          enter image description here







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Dec 11 '18 at 13:31









          Ulrike Fischer

          187k7290670




          187k7290670












          • Is there any reason why you chose inner sep=0.025 and not 0 or any other number?
            – mendus
            Dec 12 '18 at 9:25










          • 0.025cm is half of 0.05cm, your wanted radius.
            – Ulrike Fischer
            Dec 12 '18 at 9:30










          • Oh, ok. I didn't realize the node was otherwise empty.
            – mendus
            Dec 12 '18 at 9:33


















          • Is there any reason why you chose inner sep=0.025 and not 0 or any other number?
            – mendus
            Dec 12 '18 at 9:25










          • 0.025cm is half of 0.05cm, your wanted radius.
            – Ulrike Fischer
            Dec 12 '18 at 9:30










          • Oh, ok. I didn't realize the node was otherwise empty.
            – mendus
            Dec 12 '18 at 9:33
















          Is there any reason why you chose inner sep=0.025 and not 0 or any other number?
          – mendus
          Dec 12 '18 at 9:25




          Is there any reason why you chose inner sep=0.025 and not 0 or any other number?
          – mendus
          Dec 12 '18 at 9:25












          0.025cm is half of 0.05cm, your wanted radius.
          – Ulrike Fischer
          Dec 12 '18 at 9:30




          0.025cm is half of 0.05cm, your wanted radius.
          – Ulrike Fischer
          Dec 12 '18 at 9:30












          Oh, ok. I didn't realize the node was otherwise empty.
          – mendus
          Dec 12 '18 at 9:33




          Oh, ok. I didn't realize the node was otherwise empty.
          – mendus
          Dec 12 '18 at 9:33











          8














          Yes, scale really scales mainly distances, not line widths etc. UPDATE: I misread the question, sorry, and big thanks to Paul Paulsen for pointing this out. You can just divide out the scale factor in the circle radii.



          documentclass{report}
          
usepackage{tikz}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm/myscale] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm/myscale] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
begin{tikzpicture}[>=latex]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
end{document}


          enter image description here



          ORIGINAL ANSWER: Here I address how one can scale the line width with the distances. Note that I do not recommend using pgflowlevelsynccm here as it screws up the bounding box (which is why there are vspaces added), but I list it for completeness.



          documentclass{report}
          
usepackage[margin=1in]{geometry}
          
usepackage{tikz}
          
begin{document}
          
subsection*{Original post}
          
begin{tikzpicture}[>=latex, scale=2]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Using texttt{textbackslash pgflowlevelsynccm}}
          

          
vspace*{2cm}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgflowlevelsynccm
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
vspace*{1cm}
          

          
subsection*{Reading out transformation and applying it to lines etc.}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          

          
subsection*{Reading out transformation and applying it to lines etc. (2)}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Reading out transformation and applying it to lines etc. (3)}
          
begin{tikzpicture}[>=latex, scale=2,transform shape]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
end{document}


          enter image description here



          And I would draw the thing probably like this:



          documentclass[tikz,border=3.14mm]{standalone}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2,bullet/.style={transform shape,inner
          
sep=0.05cm,fill,circle}]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,shorten >=2pt,line width=myscale*pgflinewidth] 
          
(0,0) node[bullet,label=below:$P$]{}
          
   --         (2,1) node[bullet,label=below:$Q$]{};
          
end{tikzpicture}
          

          
end{document}


          enter image description here






          share|improve this answer























          • But the OP asks how to not scale the circles, not how to scale everything...
            – Paul Paulsen
            Dec 11 '18 at 21:37










          • @PaulPaulsen Very good point! Thanks a lot! (I had the opposite problem, i.e. wanted to scale the line width, some time ago, and was thinking this was asked here. But no, you are absolutely right, and I was too sloppy.)
            – marmot
            Dec 11 '18 at 21:57






          • 1




            +1, nice update and a cool way to deal with the problem :)
            – Paul Paulsen
            Dec 11 '18 at 21:59










          • While having to write /myscale can be a hindrance if there are many nodes, it allows not to scale any shape, so it is useful.
            – mendus
            Dec 12 '18 at 9:30
















          8














          Yes, scale really scales mainly distances, not line widths etc. UPDATE: I misread the question, sorry, and big thanks to Paul Paulsen for pointing this out. You can just divide out the scale factor in the circle radii.



          documentclass{report}
          
usepackage{tikz}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm/myscale] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm/myscale] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
begin{tikzpicture}[>=latex]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
end{document}


          enter image description here



          ORIGINAL ANSWER: Here I address how one can scale the line width with the distances. Note that I do not recommend using pgflowlevelsynccm here as it screws up the bounding box (which is why there are vspaces added), but I list it for completeness.



          documentclass{report}
          
usepackage[margin=1in]{geometry}
          
usepackage{tikz}
          
begin{document}
          
subsection*{Original post}
          
begin{tikzpicture}[>=latex, scale=2]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Using texttt{textbackslash pgflowlevelsynccm}}
          

          
vspace*{2cm}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgflowlevelsynccm
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
vspace*{1cm}
          

          
subsection*{Reading out transformation and applying it to lines etc.}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          

          
subsection*{Reading out transformation and applying it to lines etc. (2)}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Reading out transformation and applying it to lines etc. (3)}
          
begin{tikzpicture}[>=latex, scale=2,transform shape]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
end{document}


          enter image description here



          And I would draw the thing probably like this:



          documentclass[tikz,border=3.14mm]{standalone}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2,bullet/.style={transform shape,inner
          
sep=0.05cm,fill,circle}]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,shorten >=2pt,line width=myscale*pgflinewidth] 
          
(0,0) node[bullet,label=below:$P$]{}
          
   --         (2,1) node[bullet,label=below:$Q$]{};
          
end{tikzpicture}
          

          
end{document}


          enter image description here






          share|improve this answer























          • But the OP asks how to not scale the circles, not how to scale everything...
            – Paul Paulsen
            Dec 11 '18 at 21:37










          • @PaulPaulsen Very good point! Thanks a lot! (I had the opposite problem, i.e. wanted to scale the line width, some time ago, and was thinking this was asked here. But no, you are absolutely right, and I was too sloppy.)
            – marmot
            Dec 11 '18 at 21:57






          • 1




            +1, nice update and a cool way to deal with the problem :)
            – Paul Paulsen
            Dec 11 '18 at 21:59










          • While having to write /myscale can be a hindrance if there are many nodes, it allows not to scale any shape, so it is useful.
            – mendus
            Dec 12 '18 at 9:30














          8












          8








          8






          Yes, scale really scales mainly distances, not line widths etc. UPDATE: I misread the question, sorry, and big thanks to Paul Paulsen for pointing this out. You can just divide out the scale factor in the circle radii.



          documentclass{report}
          
usepackage{tikz}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm/myscale] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm/myscale] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
begin{tikzpicture}[>=latex]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
end{document}


          enter image description here



          ORIGINAL ANSWER: Here I address how one can scale the line width with the distances. Note that I do not recommend using pgflowlevelsynccm here as it screws up the bounding box (which is why there are vspaces added), but I list it for completeness.



          documentclass{report}
          
usepackage[margin=1in]{geometry}
          
usepackage{tikz}
          
begin{document}
          
subsection*{Original post}
          
begin{tikzpicture}[>=latex, scale=2]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Using texttt{textbackslash pgflowlevelsynccm}}
          

          
vspace*{2cm}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgflowlevelsynccm
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
vspace*{1cm}
          

          
subsection*{Reading out transformation and applying it to lines etc.}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          

          
subsection*{Reading out transformation and applying it to lines etc. (2)}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Reading out transformation and applying it to lines etc. (3)}
          
begin{tikzpicture}[>=latex, scale=2,transform shape]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
end{document}


          enter image description here



          And I would draw the thing probably like this:



          documentclass[tikz,border=3.14mm]{standalone}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2,bullet/.style={transform shape,inner
          
sep=0.05cm,fill,circle}]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,shorten >=2pt,line width=myscale*pgflinewidth] 
          
(0,0) node[bullet,label=below:$P$]{}
          
   --         (2,1) node[bullet,label=below:$Q$]{};
          
end{tikzpicture}
          

          
end{document}


          enter image description here






          share|improve this answer














          Yes, scale really scales mainly distances, not line widths etc. UPDATE: I misread the question, sorry, and big thanks to Paul Paulsen for pointing this out. You can just divide out the scale factor in the circle radii.



          documentclass{report}
          
usepackage{tikz}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm/myscale] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm/myscale] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
begin{tikzpicture}[>=latex]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
end{document}


          enter image description here



          ORIGINAL ANSWER: Here I address how one can scale the line width with the distances. Note that I do not recommend using pgflowlevelsynccm here as it screws up the bounding box (which is why there are vspaces added), but I list it for completeness.



          documentclass{report}
          
usepackage[margin=1in]{geometry}
          
usepackage{tikz}
          
begin{document}
          
subsection*{Original post}
          
begin{tikzpicture}[>=latex, scale=2]
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Using texttt{textbackslash pgflowlevelsynccm}}
          

          
vspace*{2cm}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgflowlevelsynccm
          
draw[->] (0,0) -- (2,1);
          
filldraw   (0,0) circle[radius=0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          
vspace*{1cm}
          

          
subsection*{Reading out transformation and applying it to lines etc.}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[anchor=north] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[anchor=north] {$Q$};
          
end{tikzpicture}
          

          

          
subsection*{Reading out transformation and applying it to lines etc. (2)}
          
begin{tikzpicture}[>=latex, scale=2]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
subsection*{Reading out transformation and applying it to lines etc. (3)}
          
begin{tikzpicture}[>=latex, scale=2,transform shape]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,line width=myscale*pgflinewidth] (0,0) -- (2,1);
          
filldraw[,line width=myscale*pgflinewidth]   
          
(0,0) circle[radius=myscale*0.05cm] node[below=myscale*0.05cm] {$P$}
          
            (2,1) circle[radius=myscale*0.05cm] node[above=myscale*0.05cm] {$Q$};
          
end{tikzpicture}
          

          
end{document}


          enter image description here



          And I would draw the thing probably like this:



          documentclass[tikz,border=3.14mm]{standalone}
          
begin{document}
          
begin{tikzpicture}[>=latex, scale=2,bullet/.style={transform shape,inner
          
sep=0.05cm,fill,circle}]
          
pgfgettransformentries{myscale}{tmp}{tmp}{tmp}{tmp}{tmp}
          
draw[->,shorten >=2pt,line width=myscale*pgflinewidth] 
          
(0,0) node[bullet,label=below:$P$]{}
          
   --         (2,1) node[bullet,label=below:$Q$]{};
          
end{tikzpicture}
          

          
end{document}


          enter image description here







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Dec 11 '18 at 21:56

























          answered Dec 11 '18 at 13:12









          marmot

          88.3k4102190




          88.3k4102190












          • But the OP asks how to not scale the circles, not how to scale everything...
            – Paul Paulsen
            Dec 11 '18 at 21:37










          • @PaulPaulsen Very good point! Thanks a lot! (I had the opposite problem, i.e. wanted to scale the line width, some time ago, and was thinking this was asked here. But no, you are absolutely right, and I was too sloppy.)
            – marmot
            Dec 11 '18 at 21:57






          • 1




            +1, nice update and a cool way to deal with the problem :)
            – Paul Paulsen
            Dec 11 '18 at 21:59










          • While having to write /myscale can be a hindrance if there are many nodes, it allows not to scale any shape, so it is useful.
            – mendus
            Dec 12 '18 at 9:30


















          • But the OP asks how to not scale the circles, not how to scale everything...
            – Paul Paulsen
            Dec 11 '18 at 21:37










          • @PaulPaulsen Very good point! Thanks a lot! (I had the opposite problem, i.e. wanted to scale the line width, some time ago, and was thinking this was asked here. But no, you are absolutely right, and I was too sloppy.)
            – marmot
            Dec 11 '18 at 21:57






          • 1




            +1, nice update and a cool way to deal with the problem :)
            – Paul Paulsen
            Dec 11 '18 at 21:59










          • While having to write /myscale can be a hindrance if there are many nodes, it allows not to scale any shape, so it is useful.
            – mendus
            Dec 12 '18 at 9:30
















          But the OP asks how to not scale the circles, not how to scale everything...
          – Paul Paulsen
          Dec 11 '18 at 21:37




          But the OP asks how to not scale the circles, not how to scale everything...
          – Paul Paulsen
          Dec 11 '18 at 21:37












          @PaulPaulsen Very good point! Thanks a lot! (I had the opposite problem, i.e. wanted to scale the line width, some time ago, and was thinking this was asked here. But no, you are absolutely right, and I was too sloppy.)
          – marmot
          Dec 11 '18 at 21:57




          @PaulPaulsen Very good point! Thanks a lot! (I had the opposite problem, i.e. wanted to scale the line width, some time ago, and was thinking this was asked here. But no, you are absolutely right, and I was too sloppy.)
          – marmot
          Dec 11 '18 at 21:57




          1




          1




          +1, nice update and a cool way to deal with the problem :)
          – Paul Paulsen
          Dec 11 '18 at 21:59




          +1, nice update and a cool way to deal with the problem :)
          – Paul Paulsen
          Dec 11 '18 at 21:59












          While having to write /myscale can be a hindrance if there are many nodes, it allows not to scale any shape, so it is useful.
          – mendus
          Dec 12 '18 at 9:30




          While having to write /myscale can be a hindrance if there are many nodes, it allows not to scale any shape, so it is useful.
          – mendus
          Dec 12 '18 at 9:30


















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