write_sun_coord

Create a special file to interface with the HSP software.

Classify hemispherical
photographs of the plant canopy with algorithms specially developed for
such a task and well documented in
Díaz and Lencinas (2015) <doi:10.1109/lgrs.2015.2425931> and
Díaz and Lencinas (2018) <doi:10.1139/cjfr-2018-0006>. It supports
non-circular hemispherical photography, such as those acquired with
15mm lenses or with auxiliary fish-eye lenses attached to mobile devices.
For smartphone-based hemispherical photography see
Díaz (2023) <doi:10.1111/2041-210x.14059>. Most of the functions also
support restricted view photography.

Gast<c3><b3>n Mauro D<c3><ad>az

rcaiman

CAnopy IMage ANalysis

Gastón Mauro Díaz

write_sun_coord function

<dl><dt>sun_coord</dt>
<dd>Numeric vector of length two. Raster coordinates of the
solar disk that can be obtained by calling to
<code>extract_sun_coord()</code>. TIP: if the output of
<code>extrac_sun_coord()</code> is <code>sun_coord</code>, then you should provide here
this: <code>sun_coord$row_col</code>. See also
<code>row_col_from_zenith_azimuth()</code> in case you want to provide
values based on date and time of acquisition and the <code>suncalc</code> package.</dd>
<dt>path_to_HSP_project</dt>
<dd>Character vector of length one. Path to the HSP
project folder. For instance,
"C:/Users/johndoe/Documents/HSP/Projects/my_prj/".</dd>
<dt>img_name</dt>
<dd>Character vector of length one. For instance, "DSCN6342.pgm"
or "DSCN6342". See details.</dd></dl>

Arguments

Write sun coordinates — write_sun_coord

<dl>

<dt>sun_coord</dt>
<dd>Numeric vector of length two. Raster coordinates of the
solar disk that can be obtained by calling to
<code>extract_sun_coord()</code>. TIP: if the output of
<code>extrac_sun_coord()</code> is <code>sun_coord</code>, then you should provide here
this: <code>sun_coord$row_col</code>. See also
<code>row_col_from_zenith_azimuth()</code> in case you want to provide
values based on date and time of acquisition and the <code>suncalc</code> package.</dd>


<dt>path_to_HSP_project</dt>
<dd>Character vector of length one. Path to the HSP
project folder. For instance,
"C:/Users/johndoe/Documents/HSP/Projects/my_prj/".</dd>


<dt>img_name</dt>
<dd>Character vector of length one. For instance, "DSCN6342.pgm"
or "DSCN6342". See details.</dd>

</dl>

write_sun_coord: Write sun coordinates

Description

Usage

Value

Arguments

Details

See Also