Text 如何根据Postscipt中的字符长度自动收缩文本？或者调整文本大小以适应固定区域？

如何根据Postscipt中的字符长度自动缩小文本大小？或者调整文本大小以适应固定区域？

我认为制作一个1磅字体、测量然后放大更简单。类似于（未经测试）

这个代码根本不考虑高度

我的做法是：

• 获取字符串宽度
• 将区域宽度除以字符串宽度
• 将当前字体大小乘以该值
• 然后将其用作新字体大小并显示

因此，代码类似于：

%some bogus vars to make it understandable
/myfont /Helvetica def
/mysz 10 def
/mywidth 100 def
/mystr (Hello PS world!) def

%supposedly you'd be in the middle of something
%therefore we would have the font already selected
myfont mysz selectfont

50 50 moveto
myfont mywidth mystr stringwidth pop div mysz mul selectfont
mystr show

% and for good measure, a line showing the size
50 49 moveto
mywidth 0 rlineto stroke

---

您想使用

stringwidth

。有关相关讨论，请参阅。

%some bogus vars to make it understandable
/myfont /Helvetica def
/mysz 10 def
/mywidth 100 def
/mystr (Hello PS world!) def

%supposedly you'd be in the middle of something
%therefore we would have the font already selected
myfont mysz selectfont

50 50 moveto
myfont mywidth mystr stringwidth pop div mysz mul selectfont
mystr show

% and for good measure, a line showing the size
50 49 moveto
mywidth 0 rlineto stroke