Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub

    Description

    Log sawing simulation computer programs can be valuable tools for training sawyers as well as for testing different sawing patterns. Most available simulation programs rely on databases from which to draw logs and can be very costly and time-consuming to develop. ALOG (Artificial LOg Generator) is a Microsoft Excel®-based computer program that was developed to accurately generate random, artificial log data and to serve as an alternative to using a log database. Information obtained from the analysis of actual red oak (Quercus rubra, L.) logs was incorporated into the program to ensure the validity of the generated log data. Generated log feature information includes length, small and large inside-bark diameters, amount of sweep or crook, and defects. External defect attributes include type, location, length, width, and height. Internal defect information, including depth, volume, and angle, is also given for the most common defect types that exhibited a significant linear relationship between external and internal defect attributes within the sample data. The user has the option of specifying the grade of the log as well as the position of the log in the tree, or having the features drawn randomly from known distributions. Finally, a grading algorithm is incorporated into the program to check the grade of the generated log.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Winn, Matthew F.; Wynne, Randolph H.; Araman, Philip A. 2004. ALOG: A spreadsheet-based program for generating artificial logs. Forest Products Journal. 54(1): 62-66.

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/6217