- 野中 孝昌 の投稿
返信数: 0

\tdplotsetmaincoords{0}{0}\begin{tikzpicture}[scale=1,tdplot_main_coords,rotate=0,declare function = {opc=0.9;bd=0.958; ba=104.4776; Hvdw=1.20 cm; Ovdw=1.52 cm;lw=3; vdw=1/5;}]  \coordinate (O) at (0,0,0);  \coordinate (a) at (bd,0,0);  \coordinate (b) at ($(O)!bd!ba : (a)$);  \coordinate (d) at ($(O)!bd!ba/2+180 : (a)$);  \draw [line width = lw, Pink1] (O) -- (a);  \draw [line width = lw, Pink1] (O) -- (b);  \shade[ball color = red, opacity = opc] (O) circle (vdw*Ovdw);\foreach \label in {a, b}  \shade[ball color = white, opacity = opc] (\label) circle (vdw*Hvdw);\end{tikzpicture}