Description Usage Arguments Author(s) References See Also
Construct an object that contains information on shading by the canopy, as measured with hemi-spherical photographs ('hemiphotos'). Reads one of two formats. See YplantQMC website for example files, and the instruction manual for more background.
1 2 3 4 5 6 |
canfile |
A canopy file (see Vignette for format example). |
canopytrans |
Minimum transmission of canopy (when gap fraction = 0). |
hemi |
An object generated with |
altitude,azimuth |
Viewing altitude and azimuth. |
met |
Optionally, a |
degrees |
Whether altitude and azimuth were given in degrees (if FALSE, radians). |
x |
For |
sungap |
If TRUE, and a |
projection |
If 'iso', each altitude bin has the same width in the plot (Default). If 'flat', projection is as seen from above. |
warn |
If TRUE and sungap=TRUE, warns when gap fractio is very low. |
bordercol |
Color of the grid separating the sky sectors. Use |
... |
Further arguments passed to plot.default |
Remko Duursma
For background on hemiphotos : http://en.wikipedia.org/wiki/Hemispherical_photography
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