Level Tool

[Marpel]

The literature for the Level Tool suggests that the more the level line is extended, the better the accuracy. With that in mind, I find it a bit cumbersome to go back and forth across the image to move the end points in gross movements until the line is in the exact position (yes, I am a bit OCD....).

I was wondering if, like when Compositing two images with One Point movement, there is a way to move the end points with an up/down icon (although Composite has up/down/left/right icons and I think one can even do a half pixel with the Shift key, but I may be mistaken on that). Perhaps initially placing each point in the general location, then using the up/down icons to finish. Doubt 1/2 pixel is necessary but even 5 pixel increments would be worthwhile??

[jsachs]

A feature to deal with this was added relatively recently. First place the line endpoints crudely with the entire image visible and then zoom in to 1:1 or higher. If you press "1" or "2" on the keyboard, PWP will recenter the image on either the first or second endpoint and you can drag them right where you want them. At a high enough zoom ratio it's pretty easy to place the line precisely.

[Marpel]

Jonathan,

Thanks for the reply.

If I understand what you are describing, this would work if the horizontal (or vertical) "structure" stretches the full distance across the image. I would do as you say, move point 1 to the edge of the structure, then zoom into point 2 across to the opposite side and move that point to the same edge.

However, the image which caused my initial post was a bridge which had a horizontal structure in the middle of the image which was only about 1/5 of the image width. I was hoping I could crudely set up the level line at each end of the image, then zoom into that structure (and neither end point would be visible) and "remotely" move each end point until the level line matched the edge of the structure. I meet this type of scenario fairly often. I suppose I could just shorten the level line to the length of a structure, but figured that would defeat your accuracy claim in the Help Document.

[jsachs]

If you only have a short segment to level there is no advantage to using a line that extends beyond the segment -- just put the endpoints on the end of the bridge and zoom way in to position the level line as accurately as you can.