A fork of Gitea (see branch `mj`) adding Majority Judgment Polls 𐄷 over Issues and Merge Requests. https://git.mieuxvoter.fr
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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"code.gitea.io/gitea/modules/timeutil"
"math"
)
type PollCandidateMeritProfile struct {
Poll *Poll
CandidateID int64 // Issue Index (or internal candidate index, later on)
Position uint64 // Two Candidates may share the same Position (perfect equality)
Grades []uint64 // Amount of Judgments per Grade
JudgmentsAmount uint64
//HalfJudgmentsAmount uint64 // Hack for the template, since we can't do arithmetic
CreatedUnix timeutil.TimeStamp
}
// ____
// / ___|_ ____ _
// \___ \ \ / / _` |
// ___) \ V / (_| |
// |____/ \_/ \__, |
// |___/
//
type CartesianVector2 struct {
X float64
Y float64
}
type TwoCirclePoints struct {
Start *CartesianVector2
End *CartesianVector2
}
func (merit *PollCandidateMeritProfile) GetGradeAngle(gradeID int, gapHalfAngle float64) (_ float64) {
TAU := 6.283185307179586 // Sigh ; how is this not in Golang yet?
totalAngle := TAU - gapHalfAngle*2.0
return totalAngle * float64(merit.Grades[gradeID]) / float64(merit.JudgmentsAmount)
}
func (merit *PollCandidateMeritProfile) GetCirclePoints(gradeID int, radius float64, halfGap float64) (_ *TwoCirclePoints) {
TAU := 6.283185307179586 // Sigh ; how is this not in Golang yet?
gapHalfAngle := halfGap
//gapHalfAngle = 0.39192267544687825 * 0.96 // asin(GOLDEN_RATIO-1)
//gapHalfAngle = TAU / 4.0 // Hemicycle
//gapHalfAngle = 0.0 // Camembert (du fromage!)
totalAngle := TAU - gapHalfAngle*2.0
lowerGradeJudgmentsAmount := uint64(0)
for i := 0; i < gradeID; i++ {
lowerGradeJudgmentsAmount += merit.Grades[i]
}
totalJudgments := float64(merit.JudgmentsAmount)
startingAngle := gapHalfAngle + totalAngle*float64(lowerGradeJudgmentsAmount)/totalJudgments
angle := totalAngle * float64(merit.Grades[gradeID]) / totalJudgments
endingAngle := startingAngle + angle
//println("Angles", gradeID, merit.Grades[gradeID], totalJudgments, startingAngle, endingAngle)
return &TwoCirclePoints{
Start: &CartesianVector2{
X: radius * math.Cos(startingAngle),
Y: radius * math.Sin(startingAngle),
},
End: &CartesianVector2{
X: radius * math.Cos(endingAngle),
Y: radius * math.Sin(endingAngle),
},
}
}
func (merit *PollCandidateMeritProfile) GetColorWord(gradeID int) (_ string) {
return merit.Poll.GetGradeColorWord(uint8(gradeID))
}
func (merit *PollCandidateMeritProfile) GetColorCode(gradeID int) (_ string) {
return merit.Poll.GetGradeColorCode(uint8(gradeID))
}