Fran the problem you face is with a feature in every MapInfo Layer.
It's called Zoom Layering. It gives you the ability to select layer by
layer at what map scales or zoom levels a particular layer is visible.
Your problem with the raster file is that it is currently set with zoom
layering on and at an inconvenient zoom range. Go to layer control,
select the raster layer and then click on Display. There will be an
option for Zoom Layering. You can turn this off, which will enable you
to see the map at any scale, or set it to a more appropriate zoom
range. The need for zoom layering is for screen redraw times. The more
imagery you have in a map window the longer the screen redraw. So you
can see a lot of raster images displayed at any zoom range and it would
take forever to redraw the map window.
Hope this helps,
Stan Johnston
Geologist
Fran Peck wrote:
>
> Hello follow listers,
> I have registered some aerial photos in MI to see how that process works and
> it works quite well when the points are all in the correct positions!
> However, I have a question I hope someone can answer. These images are only
> displaying at 1 mile zoom and greater. If I even select a zoom of 2 miles,
> nothing, no image. These images were opened from .sid images using Mr. Sid,
> and are listed by the vendor as "1foot" images, and encompass a section (a
> Section 1 mile square of Township, Range ilk). There are also "10 foot"
> images that encompass a whole 36 section T,R, and I have registered one of
> those and do not have the same problem with the zoom. Unfortunately,
> resolution is not all that great at higher zoom on that one! I have
> looked at the archives and the manuals and do not see an explanation of this
> zoom thing anywhere. Any ideas/suggestions? Thanks in advance
>
> Fran Peck
> Office of Research and Planning
> Peoria Unified School District
> 6330 W Thunderbird Rd
> Glendale, AZ 85306
> 623-486-6099
> Fax: 623-486-6111
> Email: [EMAIL PROTECTED]
>
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