How to use calcDistance method of main Package

Best K6 code snippet using main.calcDistance

lookup_test.go

Source:lookup_test.go Github

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1package main2import (3 "testing"4 "sync"5 "sort"6)7func TestGetResponse(t *testing.T) {8 receiveCh := make(chan LookupResponse)9 defer close(receiveCh)10 sendCh := make(chan Contact)11 defer close(sendCh)12 id := NewKademliaID("1111111100000000000000000000000000000000")13 contact1 := NewContact(NewKademliaID("2111111400000000000000000000000000000000"), "localhost:8002")14 contact1.CalcDistance(id)15 contact2 := NewContact(NewKademliaID("1111111400000000000000000000000000000000"), "localhost:8002")16 contact2.CalcDistance(id)17 contact3 := NewContact(NewKademliaID("1111111100000000000000000000000000000000"), "localhost:8002")18 contact3.CalcDistance(id)19 lookup := Lookup{20 id: id,21 notCalled: []Contact{contact1},22 called: append([]Contact{contact2}),23 wg: sync.WaitGroup{},24 sendCh: sendCh,25 receiveCh: receiveCh,26 closestHasNotValue: contact1,27 mutex: sync.RWMutex{}}28 go func(){29 contacts := LookupResponse{[]Contact{contact2, contact3}, contact2, false}30 receiveCh <- contacts31 }()32 newContacts := lookup.getResponse()33 checkContacts(t, newContacts, []Contact{contact3})34 checkContacts(t, lookup.called, []Contact{contact2})35 expContacts := []Contact{contact1, contact3}36 sort.Sort(ByDistance(expContacts))37 checkContacts(t, lookup.notCalled, expContacts)38}39func TestCallContact(t *testing.T) {40 receiveCh := make(chan LookupResponse)41 defer close(receiveCh)42 sendCh := make(chan Contact)43 defer close(sendCh)44 id := NewKademliaID("1111111100000000000000000000000000000000")45 contact1 := NewContact(NewKademliaID("2111111400000000000000000000000000000000"), "localhost:8002")46 contact1.CalcDistance(id)47 contact2 := NewContact(NewKademliaID("1111111400000000000000000000000000000000"), "localhost:8002")48 contact2.CalcDistance(id)49 contact3 := NewContact(NewKademliaID("1111111100000000000000000000000000000000"), "localhost:8002")50 contact3.CalcDistance(id)51 lookup := Lookup{52 id: id,53 notCalled: []Contact{contact1},54 called: append([]Contact{contact2}),55 wg: sync.WaitGroup{},56 sendCh: sendCh,57 receiveCh: receiveCh,58 closestHasNotValue: contact1,59 mutex: sync.RWMutex{}}60 lookup.wg.Add(1)61 go func(){62 defer lookup.wg.Done()63 contact := <-sendCh64 if !contact.ID.Equals(contact1.ID) {65 t.Error("Expected contact ", contact1, " got ", contact)66 }67 }()68 lookup.callContact()69 expContacts := []Contact{contact1, contact2}70 sort.Sort(ByDistance(expContacts))71 checkContacts(t, lookup.called, expContacts)72 checkContacts(t, lookup.notCalled, []Contact{})73 lookup.wg.Wait()74}75func TestLastEffort(t *testing.T) {76 wg := sync.WaitGroup{}77 receiveCh := make(chan LookupResponse)78 defer close(receiveCh)79 sendCh := make(chan Contact)80 defer close(sendCh)81 id := NewKademliaID("1111111100000000000000000000000000000000")82 contact1 := NewContact(NewKademliaID("2111111400000000000000000000000000000000"), "localhost:8002")83 contact1.CalcDistance(id)84 contact2 := NewContact(NewKademliaID("1111111400000000000000000000000000000000"), "localhost:8002")85 contact2.CalcDistance(id)86 contact3 := NewContact(NewKademliaID("1111111100000000000000000000000000000000"), "localhost:8002")87 contact3.CalcDistance(id)88 lookup := Lookup{89 id: id,90 notCalled: []Contact{contact1},91 called: append([]Contact{contact2}),92 wg: sync.WaitGroup{},93 sendCh: sendCh,94 receiveCh: receiveCh,95 closestHasNotValue: contact1,96 mutex: sync.RWMutex{}}97 wg.Add(1)98 go func(){99 defer wg.Done()100 contact := <-sendCh101 if !contact.ID.Equals(contact1.ID) {102 t.Error("Expected contact ", contact1, " got ", contact)103 }104 receiveCh <- LookupResponse{[]Contact{}, contact, false}105 }()106 lookup.lastEffort()107 expContacts := []Contact{contact1, contact2}108 sort.Sort(ByDistance(expContacts))109 checkContacts(t, lookup.called, expContacts)110 checkContacts(t, lookup.notCalled, []Contact{})111 wg.Wait()112}113func TestRunLookupLessThenK(t *testing.T) {114 receiveCh := make(chan LookupResponse)115 defer close(receiveCh)116 sendCh := make(chan Contact)117 defer close(sendCh)118 id := NewKademliaID("1111111100000000000000000000000000000000")119 contact1 := NewContact(NewKademliaID("2111111400000000000000000000000000000000"), "localhost:8002")120 contact1.CalcDistance(id)121 contact2 := NewContact(NewKademliaID("1111111400000000000000000000000000000000"), "localhost:8002")122 contact2.CalcDistance(id)123 contact3 := NewContact(NewKademliaID("1111111100000000000000000000000000000000"), "localhost:8002")124 contact3.CalcDistance(id)125 expContacts := []Contact{contact1, contact2, contact3}126 sort.Sort(ByDistance(expContacts))127 go func() {128 hasReturnd := false129 for {130 contact, more := <-sendCh131 if !more {132 return133 }134 if hasReturnd {135 receiveCh <- LookupResponse{[]Contact{}, contact, false}136 } else {137 hasReturnd = true138 receiveCh <- LookupResponse{[]Contact{contact2, contact3}, contact, true}139 }140 }141 }()142 contacts, contact, _ := RunLookup(id, contact1, []Contact{contact3}, sendCh, receiveCh)143 if !contact.ID.Equals(contact2.ID) {144 t.Error("Expected contact ", contact2, " got ", contact)145 }146 checkContacts(t, contacts, expContacts)147}148func TestRunLookup(t *testing.T) {149 receiveCh := make(chan LookupResponse)150 defer close(receiveCh)151 sendCh := make(chan Contact)152 defer close(sendCh)153 id := NewKademliaID("1111111100000000000000000000000000000000")154 contact1 := NewContact(NewKademliaID("2111111400000000000000000000000000000000"), "localhost:8002")155 contact1.CalcDistance(id)156 contact2 := NewContact(NewKademliaID("1111111400000000000000000000000000000000"), "localhost:8002")157 contact2.CalcDistance(id)158 contact3 := NewContact(NewKademliaID("1111111100000000000000000000000000000000"), "localhost:8002")159 contact3.CalcDistance(id)160 contact4 := NewContact(NewKademliaID("1111111500000000000000000000000000000000"), "localhost:8002")161 contact4.CalcDistance(id)162 contact5 := NewContact(NewKademliaID("1111111600000000000000000000000000000000"), "localhost:8002")163 contact5.CalcDistance(id)164 contact6 := NewContact(NewKademliaID("1111111700000000000000000000000000000000"), "localhost:8002")165 contact6.CalcDistance(id)166 expContacts := []Contact{contact1, contact2, contact3, contact4, contact5, contact6}167 sort.Sort(ByDistance(expContacts))168 go func() {169 hasReturnd := false170 for {171 contact, more := <-sendCh172 if !more {173 return174 }175 go func(contact Contact){176 if hasReturnd {177 receiveCh <- LookupResponse{[]Contact{contact1}, contact, false}178 } else {179 hasReturnd = true180 receiveCh <- LookupResponse{[]Contact{contact2, contact3, contact4, contact5, contact6}, contact, true}181 }182 }(contact)183 }184 }()185 contacts, contact, _ := RunLookup(id, contact1, []Contact{contact3}, sendCh, receiveCh)186 if !contact.ID.Equals(contact2.ID) {187 t.Error("Expected contact ", contact2, " got ", contact)188 }189 checkContacts(t, contacts, expContacts[:k])190}191func checkContacts(t *testing.T, contacts []Contact, expContacts []Contact) {192 if len(contacts) != len(expContacts) {193 t.Error("Expected ", len(expContacts), " contacts got ", len(contacts))194 }195 for i := 0; i < len(expContacts); i++ {196 if !contacts[i].ID.Equals(expContacts[i].ID) {197 t.Error("Expected contact ", expContacts[i], " got ", contacts[i])198 }199 }200}...

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server.go

Source:server.go Github

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...51}52func toRadians(num float64) float64 {53 return num * math.Pi / float64(180)54}55// calcDistance calculates the distance between two points using the "haversine" formula.56// The formula is based on http://mathforum.org/library/drmath/view/51879.html.57func calcDistance(p1 *pb.Point, p2 *pb.Point) int32 {58 const CordFactor float64 = 1e759 const R = float64(6371000) // earth radius in metres60 lat1 := toRadians(float64(p1.Latitude) / CordFactor)61 lat2 := toRadians(float64(p2.Latitude) / CordFactor)62 lng1 := toRadians(float64(p1.Longitude) / CordFactor)63 lng2 := toRadians(float64(p2.Longitude) / CordFactor)64 dlat := lat2 - lat165 dlng := lng2 - lng166 a := math.Sin(dlat/2)*math.Sin(dlat/2) +67 math.Cos(lat1)*math.Cos(lat2)*68 math.Sin(dlng/2)*math.Sin(dlng/2)69 c := 2 * math.Atan2(math.Sqrt(a), math.Sqrt(1-a))70 distance := R * c71 return int32(distance)72}73func (s *routeGuideServer) RecordRoute(stream pb.RouteGuide_RecordRouteServer) error {74 startTime := time.Now()75 var pointCount, distance int3276 var prevPoint *pb.Point77 for {78 point, err := stream.Recv()79 // 用户停止上传80 if err == io.EOF {81 // conclude a route summary82 endTime := time.Now()83 return stream.SendAndClose(&pb.RouteSummary{84 PointCount: pointCount,85 Distance: distance,86 ElapsedTime: int32(endTime.Sub(startTime).Seconds()),87 })88 }89 if err != nil {90 return err91 }92 pointCount++93 if prevPoint != nil {94 distance += calcDistance(prevPoint, point)95 }96 prevPoint = point97 }98 return nil99}100func (s *routeGuideServer) recommendOnce(request *pb.RecommendationRequest) (*pb.Feature, error) {101 var nearest, farthest *pb.Feature102 var nearestDistance, farthestDistance int32103 for _, feature := range s.features {104 distance := calcDistance(feature.Location, request.Point)105 if nearest == nil || distance < nearestDistance {106 nearestDistance = distance107 nearest = feature108 }109 if farthest == nil || distance > farthestDistance {110 farthestDistance = distance111 farthest = feature112 }113 }114 if request.Mode == pb.RecommendationMode_GetFarthest {115 return farthest, nil116 } else {117 return nearest, nil118 }...

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main.go

Source:main.go Github

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...30 fmt.Printf("%.4f", d)31}32func closestDistance(X, Y []point) float64 {33 if len(X) == 2 {34 return calcDistance(X[0], X[1])35 } else if len(X) == 3 {36 return math.Min(math.Min(calcDistance(X[0], X[1]), calcDistance(X[1], X[2])), calcDistance(X[0], X[2]))37 }38 half := int(math.Floor(float64(len(X)) / 2))39 pointsLeft := X[:half]40 pointsRight := X[half:]41 XL, XR := pointsLeft, pointsRight42 YL, YR := sortedSplit(pointsLeft, pointsRight, Y)43 minLeft := closestDistance(XL, YL)44 minRight := closestDistance(XR, YR)45 sigma := math.Min(minLeft, minRight)46 sigmaPrime := closestSplitPoint(Y, pointsRight[0], sigma)47 return math.Min(sigma, sigmaPrime)48}49func closestSplitPoint(Y []point, mid point, sigma float64) float64 {50 YPrime := make([]point, 0)51 for i, point := range Y {52 if i == 0 {53 continue54 }55 if calcDistance(point, mid) > 2*sigma {56 YPrime = append(YPrime, point)57 }58 if i == 6 {59 break60 }61 }62 for i, point := range Y {63 for j, yPoint := range YPrime {64 if i == 0 || i != j+1 {65 tempSigma := calcDistance(point, yPoint)66 if tempSigma < sigma {67 sigma = tempSigma68 }69 }70 }71 }72 return sigma73}74func sortedSplit(pointsLeft, pointsRight, Y []point) ([]point, []point) {75 left := make([]point, 0, len(pointsLeft))76 right := make([]point, 0, len(pointsRight))77 for _, point := range Y {78 if point.x < pointsRight[0].x {79 left = append(left, point)80 } else {81 right = append(right, point)82 }83 }84 return left, right85}86func calcDistance(p1, p2 point) float64 {87 return math.Sqrt(math.Pow(float64(p1.x-p2.x), 2) + math.Pow(float64(p1.y-p2.y), 2))88}...

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calcDistance

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1import (2func main() {3 p := geometry.Point{1, 2}4 q := geometry.Point{4, 6}5}6import (7func main() {8 p := geometry.Point{1, 2}9 q := geometry.Point{4, 6}10}11import (12func main() {13 p := geometry.Point{1, 2}14 q := geometry.Point{4, 6}15}16import (17func main() {18 p := geometry.Point{1, 2}19 q := geometry.Point{4, 6}20}21import (22func main() {23 p := geometry.Point{1, 2}24 q := geometry.Point{4, 6}25}26import (27func main() {28 p := geometry.Point{1, 2}29 q := geometry.Point{4, 6}30 fmt.Println(geometry.Distance(p, q

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calcDistance

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1import (2type Point struct {3}4func (p Point) calcDistance(q Point) float64 {5 return math.Sqrt(math.Pow(p.x-q.x, 2) + math.Pow(p.y-q.y, 2))6}7func main() {8 p1 := Point{3, 4}9 p2 := Point{5, 6}10 fmt.Println(p1.calcDistance(p2))11}12import (13type Point struct {14}15func (p Point) calcDistance(q Point) float64 {16 return math.Sqrt(math.Pow(p.x-q.x, 2) + math.Pow(p.y-q.y, 2))17}18func (p Point) calcDistance(q Point, r Point) float64 {19 return math.Sqrt(math.Pow(p.x-q.x, 2) + math.Pow(p.y-q.y, 2) + math.Pow(q.x-r.x, 2) + math.Pow(q.y-r.y, 2))20}21func main() {22 p1 := Point{3, 4}23 p2 := Point{5, 6}24 p3 := Point{1, 2}25 fmt.Println(p1.calcDistance(p2))26 fmt.Println(p1.calcDistance(p2, p3))27}28import (29type Point struct {30}31func (p Point)

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calcDistance

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1import "fmt"2import "math"3func main() {4 fmt.Print("Enter x1: ")5 fmt.Scanln(&x1)6 fmt.Print("Enter y1: ")7 fmt.Scanln(&y1)8 fmt.Print("Enter x2: ")9 fmt.Scanln(&x2)10 fmt.Print("Enter y2: ")11 fmt.Scanln(&y2)12 fmt.Println("Distance: ", calcDistance(x1, y1, x2, y2))13}14import "fmt"15import "math"16func main() {17 fmt.Print("Enter x1: ")18 fmt.Scanln(&x1)19 fmt.Print("Enter y1: ")20 fmt.Scanln(&y1)21 fmt.Print("Enter x2: ")22 fmt.Scanln(&x2)23 fmt.Print("Enter y2: ")24 fmt.Scanln(&y2)25 fmt.Println("Distance: ", calcDistance(x1, y1, x2, y2))26}27import "fmt"28import "math"29func main() {30 fmt.Print("Enter x1: ")31 fmt.Scanln(&x1)32 fmt.Print("Enter y1: ")33 fmt.Scanln(&y1)34 fmt.Print("Enter x2: ")35 fmt.Scanln(&x2)36 fmt.Print("Enter y2: ")37 fmt.Scanln(&y2)38 fmt.Println("Distance: ", calcDistance(x1, y1, x2, y2))39}40import "fmt"41import "math"42func main() {43 fmt.Print("Enter x1: ")44 fmt.Scanln(&x1)45 fmt.Print("Enter y1: ")46 fmt.Scanln(&y1)47 fmt.Print("Enter x2: ")48 fmt.Scanln(&x2

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calcDistance

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1import "fmt"2func main() {3 fmt.Println("Enter the value of x1")4 fmt.Scanln(&x1)5 fmt.Println("Enter the value of y1")6 fmt.Scanln(&y1)7 fmt.Println("Enter the value of x2")8 fmt.Scanln(&x2)9 fmt.Println("Enter the value of y2")10 fmt.Scanln(&y2)11 fmt.Println("The distance between the points is", calcDistance(x1, y1, x2, y2))12}13import "math"14func calcDistance(x1, y1, x2, y2 float64) float64 {15 return math.Sqrt(x*x + y*y)16}17import "fmt"18func main() {19 fmt.Println("Enter the value of x1")20 fmt.Scanln(&x1)21 fmt.Println("Enter the value of y1")22 fmt.Scanln(&y1)23 fmt.Println("Enter the value of x2")24 fmt.Scanln(&x2)25 fmt.Println("Enter the value of y2")26 fmt.Scanln(&y2)27 fmt.Println("The distance between the points is", calcDistance(x1, y1, x2, y2))28}29import "math"30func calcDistance(x1, y1, x2, y2 float64) float64 {31 return math.Sqrt(x*x + y*y)32}33import "fmt"34func main() {35 fmt.Println("Enter the value of x1")36 fmt.Scanln(&x1)37 fmt.Println("Enter the value of y1")38 fmt.Scanln(&

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calcDistance

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1import "fmt"2func main() {3 fmt.Println("Enter x1 and y1")4 fmt.Scanln(&x1, &y1)5 fmt.Println("Enter x2 and y2")6 fmt.Scanln(&x2, &y2)7 fmt.Println("Distance between points is", calcDistance(x1, x2, y1, y2))8}9import "fmt"10func main() {11 fmt.Println("Enter x1 and y1")12 fmt.Scanln(&x1, &y1)13 fmt.Println("Enter x2 and y2")14 fmt.Scanln(&x2, &y2)15 fmt.Println("Distance between points is", calcDistance(x1, x2, y1, y2))16}17import "fmt"18func main() {19 fmt.Println("Enter x1 and y1")20 fmt.Scanln(&x1, &y1)21 fmt.Println("Enter x2 and y2")22 fmt.Scanln(&x2, &y2)23 fmt.Println("Distance between points is", calcDistance(x1, x2, y1, y2))24}25import "fmt"26func main() {27 fmt.Println("Enter x1 and y1")28 fmt.Scanln(&x1, &y1)29 fmt.Println("Enter x2 and y2")30 fmt.Scanln(&x2, &y2)31 fmt.Println("Distance between points is", calcDistance(x1, x2, y1, y2))32}33import "fmt"34func main() {35 fmt.Println("Enter x1 and y1")

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calcDistance

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Distance is: ", calcDistance(10, 20, 30, 40))4}5import (6func main() {7 fmt.Println("Distance is: ", calcDistance(10, 20, 30, 40))8}9import (10func main() {11 fmt.Println("Distance is: ", calcDistance(10, 20, 30, 40))12}

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calcDistance

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1import (2func main() {3 fmt.Println("Hello, World!")4 fmt.Println(calcDistance(1, 1, 2, 2))5}6import (7func calcDistance(x1, y1, x2, y2 float64) float64 {8 return math.Sqrt(a*a + b*b)9}

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calcDistance

Using AI Code Generation

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1import (2func main() {3 fmt.Println(main.calcDistance(5, 12, 8, 15))4}5import (6func main() {7 fmt.Println(main.calcDistance(5, 12, 8, 15))8}9import (10func main() {11 fmt.Println(main.calcDistance(5, 12, 8, 15))12}13import (14func main() {15 fmt.Println(main.calcDistance(5, 12, 8, 15))16}17import (18func main() {19 fmt.Println(main.calcDistance(5, 12, 8, 15))20}21import (22func main() {23 fmt.Println(main.calcDistance(5, 12, 8, 15))24}25import (26func main() {27 fmt.Println(main.calcDistance(5, 12, 8, 15))28}29import (30func main() {31 fmt.Println(main.calcDistance(5, 12, 8, 15))32}33import (

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calcDistance

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1import (2func main() {3 fmt.Println("Hello, 世界")4 p := Point{x: 4, y: 3}5 q := Point{x: 0, y: 0}6 fmt.Println(calcDistance(p, q))7}8type Point struct {9}10func calcDistance(p, q Point) float64 {11 return math.Hypot(q.x-p.x, q.y-p.y)12}

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