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