62 lines
1.4 KiB
TeX
62 lines
1.4 KiB
TeX
\begin{tikzpicture}[scale = 0.9, every node/.style={scale=0.9}]
|
|
|
|
\def\raynum{18}
|
|
|
|
\foreach \x in {0,...,\raynum} {
|
|
\ifthenelse{\x < 3 \OR \x>15}
|
|
{
|
|
\draw[color = black] (\x /\raynum * 6 ,0) -- (3,4);
|
|
}{
|
|
\draw[color = lightgray] (\x /\raynum * 6 ,0) -- (3,4);
|
|
|
|
}
|
|
}
|
|
|
|
\fill[
|
|
white
|
|
] (1.48,1) -- (4.52,1) -- (5.02,0) -- (0.98,0) -- cycle;
|
|
|
|
|
|
\draw [color=black] (0,0) -- node[below]{wall} (6,0) ; % wall
|
|
\draw [color=black](1.5,1) -- node[below]{blocker} (4.5,1); %blocker
|
|
|
|
%cam
|
|
\node[
|
|
circle,
|
|
fill = black,
|
|
minimum width = 1mm,
|
|
outer sep = 2mm
|
|
] (camera) at (3,4) {};
|
|
\node at (camera.north) {camera};
|
|
|
|
%magnifier
|
|
\node[
|
|
circle,
|
|
draw
|
|
] (mag) at (4.5, 1){};
|
|
|
|
|
|
\fill[
|
|
gray
|
|
] (5,3) -- (6.7,3) -- (6.7,3.3) -- (5,3.3) -- cycle;
|
|
|
|
\draw[black] (8,2) coordinate (darkgray_ray_isec) -- (5,5) coordinate (orig);
|
|
\draw[gray] (6.4,3.3) coordinate (red_ray_isec) -- (5,5);
|
|
|
|
%line
|
|
\draw (mag.north east) -- (7,2);
|
|
|
|
%magnifier box
|
|
\draw (5,5) -- (8,5) -- (8,2) -- (5,2) -- cycle;
|
|
|
|
\pic [
|
|
draw,
|
|
->,
|
|
"$d\omega$",
|
|
angle radius=20mm,
|
|
angle eccentricity=1,
|
|
pic text options={shift={(3mm,3mm)}}
|
|
]
|
|
{angle = red_ray_isec--orig--darkgray_ray_isec};
|
|
|
|
\end{tikzpicture}
|