renen watermeyer renenw
renenw
/ sasa_analyzer.rb
Last active
May 6, 2020 13:59
An ActiveStorage analyzer that pulls out GPS and other details
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| require 'exifr/jpeg' | |
| # Add to your Gemfile: gem 'exifr', '~> 1.3', '>= 1.3.6' | |
| # I created the file in /lib/active_storage/sasa_analyzer.rb | |
| # You will also need to update your application.rb: config.autoload_paths << "#{Rails.root}/lib/active_storage" | |
| # Draws on https://ledermann.dev/blog/2018/05/15/exif-analyzer-for-active-storage/ | |
| class SasaAnalyzer < ActiveStorage::Analyzer |
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| def self.liquid_voltage_lookup(beer_voltage, battery_voltage) | |
| # solve for rt in kilos: vo = vbat * (Rt/(Rt+R1)) | |
| # vbat = battery_voltage | |
| # vo = beer_voltage | |
| # r1 = 100 | |
| temperature = nil | |
| rt = BigDecimal(beer_voltage,6) * BigDecimal(100,6) / ( BigDecimal(battery_voltage,6) - BigDecimal(beer_voltage,6) ) if battery_voltage!=beer_voltage | |
| if rt |
