• Home
• edu.gemini
• lucuma-catalog_sjs1_3
• 0.44.6
• source code
• BandsList.scala

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

lucuma.catalog.BandsList.scala Maven / Gradle / Ivy

// Copyright (c) 2016-2023 Association of Universities for Research in Astronomy, Inc. (AURA)
// For license information see LICENSE or https://opensource.org/licenses/BSD-3-Clause

package lucuma.catalog

import cats.Eq
import cats.derived.*
import lucuma.core.enums.Band

/**
 * Defines a list of bands It is used, e.g. to extract a magnitude from a target
 */
sealed trait BandsList derives Eq:
  def bands: List[Band]

  /**
   * union operation
   */
  def ∪(that: BandsList): BandsList

object BandsList:

  /**
   * Extracts the first valid Gaia Band Magnitude if available
   */
  case object GaiaBandsList extends BandsList:
    val bands = List(Band.GaiaRP, Band.Gaia) // Order is important

    def ∪(that: BandsList): BandsList = this