This "title" thing is more complex than I thought.

For  vp:=draw(x,x=0..1); write(vp,"pic", FORMAT)

When FORMAT is:

"pixmap" or "bitmap":
generates 400x400 image, title is the same as screen output

"image":
generates 300x324 image, title is 24 pixel higher than screen output

"postscript":
generates 400x376 image currently, no title.
I can modify it to generate 400x400 image with title the same
as screen output.


The "image" format is currently used by hypertex to generate
*.VIEW and convert to images used in book.


I will change "postscript" to generate 400x400 image with title.

However, shall we change the "image" format?  I mean what's the
point of generating a smaller image and taller title?  Is that
required by hyperdoc somehow?

My guess is that making the image smaller can make the title
font relatively larger.
I think 300x324 is a mistake, it calculated titleHeight twice.

- Qian

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