On 25 Dez., 17:35, Yuval Levy <[email protected]> wrote:
> Hey Kay,
>
> I finally have time to catch up with these and I agree with most of what you
> write about editing control points.  But..

Ha! I thought noone would ever take notice of my outpourings...

> But the option need to be available.  Let's relegate the CP tab to a context
> menu option on the connection between two images, as displayed in the layout
> mode.

sounds reasonable.

> > ...
> > which lends itself particularly well to the task and can be
> > efficiently calculated, and only one view. As far as standard
> > panoramic work is concerned, I feel that equirectangular projection is
> > best suited.
>
> disagree.  Try placing a CP on the nadir.

I haven't made myself clear here. I thought to use a view where the
projection axis remains in the center of the display. And indeed as
you point out

> you assume rotating the sphere so that the point of interest is around the
> horizon, where the distortion is indeed minimal;  but this is also true of
> every other perspective.  If we go this way of zooming into close-up work,
> then I would rather have that projection rectilinear (think: straight lines)
> or stereographic (think: reducing distortion).

The diference, particularly if closed up, wouldn't be too great.
Probably the rectilinear projection would be most familiar, and look
most like what most users input. I was just thinking of making it
computationally efficient and thought equirectangular would be the
most efficient one. Shouldn't make that much difference, though?
>
> > , and the most-commonly used line of reference - the
> > horizon - comes out as a line in an equirect if all is well.
>
> wrong.  the horizon is not the most commonly used line of reference.  On many
> pictures it does not appear (interiors!).  I don't think we can make any
> assumption about most commonly used lines of references.  Verticals are for
> interiors.  Horizons for flat outdoors.  And sometimes there is neither nor.  
> Rectlinear projection served both of them equally well (and can be used also
> for horizontal lines parallel to the Horizon).

You are right. I must have failed to see this because I mainly do
landscapes.

Kay

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