Computer-Graphing of Annual Ring Widths During Measurement
Author(s) -
D. C. F. Fayle,
Donald Maclver,
Catherine V. Bentley
Publication year - 1983
Publication title -
the forestry chronicle
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 49
eISSN - 1499-9315
pISSN - 0015-7546
DOI - 10.5558/tfc59291-6
Subject(s) - microcomputer , graphics , ring (chemistry) , computer graphics (images) , computer graphics , line (geometry) , computer science , tree (set theory) , storage ring , section (typography) , mathematics , geometry , physics , optics , operating system , combinatorics , chemistry , telecommunications , chip , beam (structure) , organic chemistry
Annual ring width data produced by the DIGI-MIC tree ring measurer are transmitted to an APPLE II Plus microcomputer providing the user with an immediate graphical display of the radial growth pattern of the tree. Line graphs of ring widths along radii of a stem cross section and (or) the average for successive stem sections can be compared visually, verified and edited if necessary. Average and individual values are stored on floppy diskettes for further analysis. Computational programs have been written for tabular and graphical display of the complete stem analysis data. Keywords: Annual rings, computer graphics, stem analysis.
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