Sun Azimuth/Altitude Data in Ladybug

JI · February 16, 2021, 7:35pm

Hi all,

When I was using Ladybug for getting hourly sun azimuths/altitude for the entire year, some values are missing.
Ideally, when the sun is down, the value needs to be 0. For now, it only has 4408 values when the sun is on during the daytime.

I was wondering if any tutorial could help solve this problem?

mostapha · February 17, 2021, 4:04am

You can remove the check in line 243 in the component to get all the hours including the night hours:

github.com

ladybug-tools/ladybug-grasshopper/blob/master/ladybug_grasshopper/src/LB SunPath.py

# Ladybug: A Plugin for Environmental Analysis (GPL)
# This file is part of Ladybug.
#
# Copyright (c) 2020, Ladybug Tools.
# You should have received a copy of the GNU General Public License
# along with Ladybug; If not, see <http://www.gnu.org/licenses/>.
# 
# @license GPL-3.0+ <http://spdx.org/licenses/GPL-3.0+>

"""
Output a Sunpath (aka. sun plot) graphic into the Rhino scene.
-
The component also outputs sun vectors that can be used for solar access
analysis and shading design.
-

    Args:
        north_: A number between -360 and 360 for the counterclockwise
            difference between the North and the positive Y-axis in degrees.
            90 is West and 270 is East. This can also be Vector for the

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FanouriosK · June 14, 2024, 8:19am

Hi all,

I have a follow-up question regarding this in the updated LB SunPath component (v1.8.0). I tried to locate the place where @mostapha mentioned removing it, but I couldn’t find the equivalent line in the updated version. How can I modify the code in LB SunPath (v1.8.0) to include all hourly sun altitude values for the entire year, including nighttime hours (zeros)?

Thank you,
Fanourios