☰

使用 tkz-euclide 并排缩放图形

tag-icon • tag-icon tikz-pgf tkz-euclide
使用 tkz-euclide 并排缩放图形

我试图将两个数字并排放置，但右边的数字应该按一定比例缩放，才能显得比左边的数字大。到目前为止，我的进度是以下代码。我试着看手册，但我看不懂法语。

\documentclass[tikz]{standalone}
\usepackage{tkz-euclide}
\usetkzobj{all}


\begin{document}
    \begin{tikzpicture}
        %Define Points
        \tkzDefPoint (0,0){A}
        \tkzDefPoint (4,0){B}
        \tkzDefPoint (5,1){C}
        \tkzDefPoint (3,2){D}
        \tkzDrawPolygon[fill=blue!40, very thick](A,B,C,D)

        %Label Points
        \tkzLabelPoint[left](A){A}
        \tkzLabelPoint(B){B}
        \tkzLabelPoint(C){C}
        \tkzLabelPoint[above](D){D}
        %Shift the Points
        \tkzDefShiftPoint[A](3 in, 0in){A'}
        \tkzDefShiftPoint[B](3 in, 0in){B'}
        \tkzDefShiftPoint[C](3 in, 0in){C'}
        \tkzDefShiftPoint[D](3 in, 0in){D'}
        \tkzDrawPolygon[fill=green!40, very thick,scale=3](A',B',C',D')
    \end{tikzpicture}
\end{document}

答案1

您可以在翻译之前缩放点：

\documentclass[tikz]{standalone}
\usepackage{tkz-euclide}
\usetkzobj{all}


\begin{document}
    \begin{tikzpicture}
        %Define Points
        \tkzDefPoint (0,0){A}
        \tkzDefPoint (4,0){B}
        \tkzDefPoint (5,1){C}
        \tkzDefPoint (3,2){D}
        \tkzDrawPolygon[fill=blue!40, very thick](A,B,C,D)

        %Label Points
        \tkzLabelPoint[left](A){A}
        \tkzLabelPoint(B){B}
        \tkzLabelPoint(C){C}
        \tkzLabelPoint[above](D){D}

        %Scale the points about A with ratio 3
        \tkzDefPointBy[homothety=center A ratio 3](A)\tkzGetPoint{A};
        \tkzDefPointBy[homothety=center A ratio 3](B)\tkzGetPoint{B};
        \tkzDefPointBy[homothety=center A ratio 3](C)\tkzGetPoint{C};
        \tkzDefPointBy[homothety=center A ratio 3](D)\tkzGetPoint{D};

        %Shift the Points
        \tkzDefShiftPoint[A](3 in, 0in){A'}
        \tkzDefShiftPoint[B](3 in, 0in){B'}
        \tkzDefShiftPoint[C](3 in, 0in){C'}
        \tkzDefShiftPoint[D](3 in, 0in){D'}
        \tkzDrawPolygon[fill=green!40, very thick](A',B',C',D')
    \end{tikzpicture}
\end{document}

tkz-欧几里德比例多边形

免责声明：我也不读法语，这是我第一次看tkz-euclide。我所拥有的似乎有效，但我发现论点结构非常\tkzDefPointBy奇怪。我建议直接使用tikz（见cfr 的答案) 类似这样的事情。

答案2

Guho 的答案很好，但还有其他方法：

 \documentclass[tikz]{article}
 \usepackage{tkz-euclide}
 \usetkzobj{all}


 \begin{document}
 \begin{tikzpicture}
    %Define Points
    \tkzDefPoint (0,0){A}
    \tkzDefPoint (4,0){B}
    \tkzDefPoint (5,1){C}
    \tkzDefPoint (3,2){D}
    \tkzDrawPolygon[fill=blue!40, very thick](A,B,C,D)
 \end{tikzpicture}
 \begin{tikzpicture}[scale=2]
    %Define Points
    \tkzDefPoint (0,0){A}
    \tkzDefPoint (4,0){B}
    \tkzDefPoint (5,1){C}
    \tkzDefPoint (3,2){D}
    \tkzDrawPolygon[fill=green!40, very thick](A,B,C,D)
\end{tikzpicture}

\begin{tikzpicture}
    %Define Points
    \tkzDefPoint (0,0){A}
    \tkzDefPoint (4,0){B}
    \tkzDefPoint (5,1){C}
    \tkzDefPoint (3,2){D}
    \tkzDrawPolygon[fill=blue!40, very thick](A,B,C,D)

\begin{scope}[xshift=5cm,x=2cm,y=2cm]
    %Define Points
    \tkzDefPoint (0,0){A}
    \tkzDefPoint (4,0){B}
    \tkzDefPoint (5,1){C}
    \tkzDefPoint (3,2){D}
    \tkzDrawPolygon[fill=red!40, very thick](A,B,C,D)
\end{scope}
    \end{tikzpicture}
\end{document}

在此处输入图片描述

答案3

我也不读法语。能举出例子的人会明白一切。但对我来说显然不是。

\documentclass[border=5pt, multi, tikz, italian]{standalone}
\usetikzlibrary{calc}
\begin{document}
\begin{tikzpicture}
  \path [draw, very thick, fill=blue!40] (0,0) \foreach \i/\j/\k in {(0,0)/A/left,(4,0)/B/right,(5,1)/C/right,(3,2)/D/above}
  {
    -- \i coordinate (\j) node [\k] {\j}
  } -- cycle;
  \path [draw, very thick, fill=green!40] (3in,0) -- +($3*(B)$) -- +($3*(C)$) -- +($3*(D)$) -- cycle;
\end{tikzpicture}
\end{document}

缩放多边形

答案4

这要简单得多元帖子因为您可以将变换应用于整个路径，而不必一次对一个点进行变换。

在此处输入图片描述

prologues:=3;outputtemplate:="%j%c.eps";
beginfig(1);

path poly, small_poly, big_poly;

poly = origin -- (4,0) -- (5,1) -- (3,2) -- cycle;
small_poly = poly scaled 30;
big_poly   = poly scaled 50 shifted 200 right;

fill small_poly withcolor .6[blue,white]; 
draw small_poly;

fill big_poly withcolor .6[green,white]; 
draw big_poly;

label.lft("A", point 0 of small_poly); 
label.lrt("B", point 1 of small_poly); 
label.rt ("C", point 2 of small_poly); 
label.top("D", point 3 of small_poly); 

endfig;
end

相关内容