The Corridor tool is used to copy the regions of one or more images contained within a polygon to an output polygon of the same shape.

The copied regions of the source images are merged into a new image and then copied to the output space defined by the polygon. Design elements (from the design file and associated reference files) that occupy the region contained within the polygon can also be copied to the output polygon. Multiple selections are allowed.

The Corridor Image function is WYSIWYG, meaning that transparency, contrast, brightness, gamma correction and more will be applied before the new image is created.

When you use Corridor Image, both the input (source) and output (destination) polygons must be the same shape - usually a copy of the same element. However, the output polygon can be rotated, scaled, and moved to reflect the desired output result.

If the images in the input area are displayed with transparency to make a mosaic, the output file will contain all of the pixels that you can see, not the transparent parts. Therefore, the output file will be one uniform file that no longer requires the transparency settings in order to display the mosaiced area.