[Mark Hoy]

I have an inverted G1000, when I zoom in/out (for different aspect ratio, I'm attempting constant height) the image at the top of the screen moves around. I'd like to automate the process with Dilard such that when I change aspect ratio the projector will zoom in (or out) and also adjust the focus.


Currently I do NOT have the Panamorph in place. When I go from 16:9 back to 4:3 the image move up past the top of the screen.


1. What is the easiest way of determining the drop on the projector wrt the top of the screen to allow a zoom with the top of the screen not moving.


2. To add to the problem, what do you do when you add in a Panamorph to the equation?

Similar thread


-=-

Mark

 

[midi-guy]

Mark,


Your answer is actually in the thread you referenced. In any case...



Question #1. The drop of your projector should be apparent when a 4:3 image is projected.

But I don't think that's what you really want to to do.


Basically, for differrent ARs you need to use multiple image geometry

memories and modify all of the memories involved so that they are all top aligned.


When you zoom the Dila (non inverted) the bottom of the image basically

stays at the same height whereas the top and the sides expand or

contract. When inverted, the top of the image stays constant.


Using Dilard's image geometry wizard, say you modify SXGA3 and SXGA2 so

that the scaling and all other settings on both are the same. You can then

complete this by shifiting the 16:9 and and 2.35:1 images so that they are

both top aligned.



Question #2. The panamorph will not work in this scenario because the

4:3 image would already be top aligned, so there's no adjustment to be made per-se. With a panamorph, the pictures for 16:9 and 2.35:1 cannot be top aligned together.


Andrew.

 

[Mark Hoy]

I think I have some tilt in my projector. I'll look at the top alignment in Dilard.


Thanks for pointing it out midi-guy.

Mark