我有一个双重流的轮廓图,但我正尝试在轮廓图上添加箭头。
\begin{axis}[ xshift=8cm,
ticks = none,
view={0}{90},
xmin = -1, ymin = -3,
xmax = 5, ymax= 3,
axis background/.style={fill=white} ]
\addplot3 [ samples=101,smooth, contour gnuplot={levels={-2.5,-1.75,-1,-0.75,-0.5,-0.4,0,0.4,0.5,0.75,1,1.75,2.5}, draw color = black, labels=false, }] {0-y/((x-2)^2 + y^2)};
\addplot3 [ samples=101,smooth, contour gnuplot={levels={-2.5,-1.75,-1,-0.75,-0.5,-0.4,0,0.4,0.5,0.75,1,1.75,2.5}, draw color = red, labels=false}] {(x-2)/((x-2)^2 + y^2)};
\end{axis}
我尝试过使用装饰,但不起作用。下面是带有红色箭头的示例。