乳膠流程圖線過境線

Question

我正在構建一個流程圖，看起來幾乎和我想要的一樣。我想修改的最後一個細節涉及兩條相互交叉的線。

這裏是我的代碼：

\tikzstyle{block1} = [rectangle, rounded corners, minimum width=3cm, minimum height=1cm, text centered, draw, fill=blue!20, text width=6cm] 
\tikzstyle{block2} = [rectangle, rounded corners, minimum width=3cm, minimum height=1cm, text centered, draw, fill=blue!20, text width=3cm] 
\tikzstyle{decision} = [diamond, minimum width=3cm, minimum height=1cm, text centered, draw, fill=blue!20, text width=2cm] % node distance=3cm, inner sep=0pt 
\tikzstyle{line}  = [draw, -latex'] 

\begin{figure}[ht] 
    \begin{center} 
     \begin{tikzpicture}[node distance = 2cm, auto] 
     % Place nodes 
      \node [block1] (1) {\textbf{\small Study of basic factors}\\ \footnotesize Plant characteristics, mechanisms of nuclide production and waste streams}; 
      \node [block1, below of=1, node distance=1.8cm] (2) {\textbf{\small Development of sampling plan}}; 
      \node [block1, below of=2, node distance=1.7cm] (3) {\textbf{\small Sampling and analysis}}; 
      \node [block1, below of=3, node distance=2cm] (4) {\textbf{\small Observation and evaluation of nuclide activity database}\\ \footnotesize Selecting key nuclide and verifying correlation between DTM nuclides and KN}; 
      \node [decision, below of=4, node distance=3.2cm] (5) {\textbf{\small Applicability of SF method}}; 
      \node [block2, right of=5, node distance=4cm] (6) {\textbf{\small Other methods}\\ \footnotesize Mean activity, ...}; 
      \node [block2, left of=5, node distance=4cm] (7) {\textbf{\small Applying statistics}}; 
      \node [block2, below of=5, node distance=3.5cm] (8) {\textbf{\small SF classifications}\\ \footnotesize Unification and classification of groups}; 
      \node [block2, left of=8, node distance=4cm] (9) {\textbf{\small Reference}}; 
      \node [block2, below of=8, node distance=2cm] (10) {\textbf{Determination of SF}}; 
      \node [block2, left of=10, node distance=4cm] (11) {\textbf{Applying statistics}}; 
      \node [block2, right of=10, node distance=4cm] (12) {\textbf{Assess KN activity}\\ Dose rate and $\gamma$-spectra}; 
      \node [decision, below of=10, node distance=2.5cm] (13) {\textbf{Calculation}}; 
      \node [block1, below of=13, node distance=2.5cm] (14) {\textbf{Determining the activity of DTM}}; 

     % Draw edges 
      \path [line] (1) -- (2); 
      \path [line] (2) -- (3); 
      \path [line] (3) -- (4); 
      \path [line] (4) -- (5); 
      \path [line] (4) -| ([xshift=1cm, yshift=0cm]6.east) |- (12); 
      \path [line] (7) -- (5); 
      \path [line] (5) -- (6); 
      \path [line] (6) -| ([xshift=2cm, yshift=0cm]6.east) |-(14); 
      \path [line] (5) -- (8); 
      \path [line] (9) -- (8); 
      \path [line] (8) -- (10); 
      \path [line] (11) -- (10); 
      \path [line] (10) -- (13); 
      \path [line] (12) |- (13); 
      \path [line] (13) -- (14); 
     \end{tikzpicture} 
     \caption{Complete characterization process \cite{iso21238}.} 
     \label{fig_1.1} 
    \end{center} 
\end{figure} 

，在這裏你可以找到它的樣子：

我想是爲了避免2號線穿越添加一個圓弧彼此;特別是我希望從「其他方法」塊到塊「確定DTM的活動」的一行中有一個弧。

非常感謝您的幫助。

乾杯，

比亞

Answer 1

的訣竅是：（1）計算交點S的路徑1和路徑2點，（2）定義了個圓圈，即您以後將圓弧，（3）除了落入圓圈的部分之外，通常繪製你的路徑2，（4）繪製圓弧。

你需要2 tikz庫：鈣和交叉口。

\tikzstyle{block1} = [rectangle, rounded corners, minimum width=3cm, minimum height=1cm, text centered, draw, fill=blue!20, text width=6cm] 
\tikzstyle{block2} = [rectangle, rounded corners, minimum width=3cm, minimum height=1cm, text centered, draw, fill=blue!20, text width=3cm] 
\tikzstyle{decision} = [diamond, minimum width=3cm, minimum height=1cm, text centered, draw, fill=blue!20, text width=2cm] 
\tikzstyle{line}  = [draw, -latex'] 

\begin{tikzpicture}[node distance = 2cm, auto] 
    % Place nodes 
    \node [block1] (1) {\textbf{\small Study of basic factors}\\ \footnotesize Plant characteristics, mechanisms of nuclide production and waste streams}; 
    \node [block1, below of=1, node distance=1.8cm] (2) {\textbf{\small Development of sampling plan}}; 
    \node [block1, below of=2, node distance=1.7cm] (3) {\textbf{\small Sampling and analysis}}; 
    \node [block1, below of=3, node distance=2cm] (4) {\textbf{\small Observation and evaluation of nuclide activity database}\\ \footnotesize Selecting key nuclide and verifying correlation between DTM nuclides and KN}; 
    \node [decision, below of=4, node distance=3.2cm] (5) {\textbf{\small Applicability of SF method}}; 
    \node [block2, right of=5, node distance=4cm] (6) {\textbf{\small Other methods}\\ \footnotesize Mean activity, ...}; 
    \node [block2, left of=5, node distance=4cm] (7) {\textbf{\small Applying statistics}}; 
    \node [block2, below of=5, node distance=3.5cm] (8) {\textbf{\small SF classifications}\\ \footnotesize Unification and classification of groups}; 
    \node [block2, left of=8, node distance=4cm] (9) {\textbf{\small Reference}}; 
    \node [block2, below of=8, node distance=2cm] (10) {\textbf{Determination of SF}}; 
    \node [block2, left of=10, node distance=4cm] (11) {\textbf{Applying statistics}}; 
    \node [block2, right of=10, node distance=4cm] (12) {\textbf{Assess KN activity}\\ Dose rate and $\gamma$-spectra}; 
    \node [decision, below of=10, node distance=2.5cm] (13) {\textbf{Calculation}}; 
    \node [block1, below of=13, node distance=2.5cm] (14) {\textbf{Determining the activity of DTM}}; 

    % Draw edges 
    \path [line] (1) -- (2); 
    \path [line] (2) -- (3); 
    \path [line] (3) -- (4); 
    \path [line] (4) -- (5); 
    \path [line,name path=4to12] (4) -| ([xshift=1cm, yshift=0cm]6.east) |- (12); 
    \path [line] (7) -- (5); 
    \path [line] (5) -- (6); 
    % Define the path but without drawing. 
    \path [name path=6to14] (6) -| ([xshift=2cm, yshift=0cm]6.east) |-(14); 
    \path [line] (5) -- (8); 
    \path [line] (9) -- (8); 
    \path [line] (8) -- (10); 
    \path [line] (11) -- (10); 
    \path [line] (10) -- (13); 
    \path [line] (12) |- (13); 
    \path [line] (13) -- (14); 

    % Find the intersection of the two paths. 
    \path [name intersections={of=4to12 and 6to14}]; 
    \coordinate (S) at (intersection-1); 

    % Define a circle around this intersection for the arc. 
    \path[name path=circle] (S) circle(2mm); 

    % Find the intersections of second line and circle. 
    \path [name intersections={of=circle and 6to14}]; 
    \coordinate (I1) at (intersection-1); 
    \coordinate (I2) at (intersection-2); 

    % Draw normal line segments, except for portion within circle. 
    \draw (6) -- (I2); 
    \draw[->] (I1) -| ([xshift=2cm, yshift=0cm]6.east) |- (14); 

    % Draw arc at intersection 
    \draw (I2) arc (180:0:2mm); 
\end{tikzpicture}