Picture and Bitmap unified?

[Martin Wierich]

Hello Erik,

We once thought about a function

recordBitmap :: (*Picture -> *Picture)  (Int,Int) -> Bitmap

The Int pair describes the size (width and height) of the bitmap to
generate. The
Picture-to-Picture function determines the look of the bitmap. The function
would not
be hard to implement on Mac and Win95.

greetings
  Martin Wierich

"Zuurbier, E. - AMSXE" wrote:

> I thought it would be a nice idea to be able to make my own bitmaps.
> Of course I could do that by diving into the file-format of bitmaps and
> write functions to fill them. But would not it be nice if the existing
> Picture drawing functions would also be available for Bitmaps?
>
> In that case for instance the following function types could change from
>
> DrawPoint   ::  !Point  !Picture -> Picture
> DrawLine    ::  !Line   !Picture -> Picture
> DrawCurve   ::  !Curve  !Picture -> Picture
> (etc)
>
> to
>
> DrawPoint   ::  !Point  !p -> p | Pict p
> DrawLine    ::  !Line   !p -> p | Pict p
> DrawCurve   ::  !Curve  !p -> p | Pict p
> (etc)
>
> or there could be a
>
> class Pict p
> where   DrawPoint   ::  !Point  !p -> p
>         DrawLine    ::  !Line   !p -> p
>         DrawCurve   ::  !Curve  !p -> p
>         (etc)
>
> with instances for Picture and Bitmap