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solar-viz.el: Various sunrise/sunset visualizations

solar-viz.el screenshot solar-viz.el animation

solar-viz.el provides two different visualizations of day and night. The first is solar-viz-daylight which shows a timeline of the amount of day vs. night for each day for the next year. The second is solar-viz-worldmap which shows a map of the earth and which parts are in day vs. night.

Installation

Put the solar-viz.el and solar-viz-map.el into your loadpath and call (require 'solar-viz).

Setup

The commands will run based off of the variables calendar-latitude, calendar-longitude, and calendar-time-zone. Customizing these variables will change how the visualizations are initially drawn. Some visualizations (the solar-viz-daylight for now) allow you to temporarily change these via an in-mode command.

Commnds

  • solar-viz-daylight : Shows a line indicating brightness of the sky with hours on the x-axis and day on the y-axis. Commands:
    • s : redraw the timeline for a specified latitude/longitude/time-zone.
  • solar-viz-worldmap : Shows a pixelated map of the world indicating what parts are day and what parts are night. Commands:
    • n : move forward an hour
    • p : move backwards an hour
    • s : skip ahead a certain number of days forward or backwards.

To-do

  • Sunrise and sunset angle visualization