将表格行对齐到中间

Question

我有这个三角函数表：

它们的列正确地在中间对齐，但是行却没有。

那么，我怎样才能获得行中间对齐的文本？

工作示例如下：

\starttext
\midaligned{
    \setupTABLE[c][each][align=middle, width=1.3cm]
    \bTABLE
        \bTR \bTD $\theta$ \eTD \bTD $0°$ \eTD \bTD $30°$ \eTD \bTD $45°$ \eTD \bTD $60°$ \eTD \bTD $90°$ \eTD \eTR
        \bTR \bTD $sin(\theta)$ \eTD \bTD $0$ \eTD \bTD $\frac{1}{2}$ \eTD \bTD $\frac{\sqrt{2}}{2}$ \eTD \bTD $\frac{\sqrt{3}}{2}$ \eTD \bTD $1$ \eTD \eTR
        \bTR \bTD $cos(\theta)$ \eTD \bTD $1$ \eTD \bTD $\frac{\sqrt{3}}{2}$ \eTD \bTD $\frac{\sqrt{2}}{2}$ \eTD \bTD $\frac{1}{2}$ \eTD \bTD $0$ \eTD \eTR
        \bTR \bTD $tan(\theta)$ \eTD \bTD $0$ \eTD \bTD $\frac{\sqrt{3}}{3}$ \eTD \bTD $1$ \eTD \bTD $\sqrt{3}$ \eTD \bTD $\infty$ \eTD \eTR
    \eTABLE
}
\stoptext

Answer 1

low您可以使用、lohi和high关键字来控制单元格内容的垂直对齐方式align。

\starttext

\startlinealignment[middle]
  \bTABLE[width=2cm,height=2cm,align={middle,lohi}]
    \bTR
      \bTD \eTD
      \bTD left \eTD
      \bTD middle \eTD
      \bTD right \eTD
    \eTR
    \bTR
      \bTD low \eTD
      \bTD[align={flushleft,low}] TEXT \eTD
      \bTD[align={middle,low}] TEXT \eTD
      \bTD[align={flushright,low}] TEXT \eTD
    \eTR
    \bTR
      \bTD middle \eTD
      \bTD[align={flushleft,lohi}] TEXT \eTD
      \bTD[align={middle,lohi}] TEXT \eTD
      \bTD[align={flushright,lohi}] TEXT \eTD
    \eTR
    \bTR
      \bTD high \eTD
      \bTD[align={flushleft,high}] TEXT \eTD
      \bTD[align={middle,high}] TEXT \eTD
      \bTD[align={flushright,high}] TEXT \eTD
    \eTR
  \eTABLE
\stoplinealignment

\stoptext