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On-Screen Takeoff - 11.05.02 Deskewing Plans (Aligning to Level Horizontally) - OST

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Sometimes, when a paper plan is scanned and stored electronically, the page is off the horizontal axis slightly and images will look crooked on the Image tab. You can fix this using the Deskew function.

(The example below is extremely skewed to emphasize the functionality - most images are only off a degree or two.)

Example of a plan before deskewing, it is not level with the horizon

Click Image > Deskew - the Deskew Image dialog displays, which includes directions for deskewing the image.

Deskewing prompt explain how to draw a line along a linear that should be level to the horizon

Find a known horizontal line on your drawing (a long line that should be horizontal)

Click on the line and drag to trace over it from left to right

The program adjusts the drawing level to this line (the image file is not altered, only the way On-Screen Takeoff is displaying it is changed).

after drawing the leveling line, On-Screen Takeoff deskews the Plan and it should be level to the horizon

It's best to use the longest horizontal line on your plan as possible for the deskew to be accurate.

Note

Deskewing a base image stores a setting in the database that tells the program to make the adjustment to the display of the base image. The base image is not altered. However, adjusting an Overlay image creates a TIF copy of that image and all changes are made to that TIF and stored in an "Overlays" subfolder where the original Overlay image file is stored.

Rotating and Flipping Plans

Converting Image Files (Drawings) to TIFF Format

On-Screen Takeoff - 11.07.04 Aligning Overlays to Match the Base Image - OST