forked from hybridgroup/gobot
/
parser.go
113 lines (103 loc) · 4.2 KB
/
parser.go
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package leap
import (
"encoding/json"
)
// Gesture is a Leap Motion gesture that has been detected
type Gesture struct {
Center []float64 `json:"center"`
Direction []float64 `json:"direction"`
Duration int `json:"duration"`
HandIDs []int `json:"handIds"`
ID int `json:"id"`
Normal []float64 `json:"normal"`
PointableIDs []int `json:"pointableIds"`
Position []float64 `json:"position"`
Progress float64 `json:"progress"`
Radius float64 `json:"radius"`
Speed float64 `json:"speed"`
StartPosition []float64 `json:"StartPosition"`
State string `json:"state"`
Type string `json:"type"`
}
// Hand is a Leap Motion hand that has been detected
type Hand struct {
ArmBasis [][]float64 `json:"armBasis"`
ArmWidth float64 `json:"armWidth"`
Confidence float64 `json:"confidence"`
Direction []float64 `json:"direction"`
Elbow []float64 `json:"elbow"`
GrabStrength float64 `json:"grabStrength"`
ID int `json:"id"`
PalmNormal []float64 `json:"palmNormal"`
PalmPosition []float64 `json:"PalmPosition"`
PalmVelocity []float64 `json:"PalmVelocity"`
PinchStrength float64 `json:"PinchStrength"`
R [][]float64 `json:"r"`
S float64 `json:"s"`
SphereCenter []float64 `json:"sphereCenter"`
SphereRadius float64 `json:"sphereRadius"`
StabilizedPalmPosition []float64 `json:"stabilizedPalmPosition"`
T []float64 `json:"t"`
TimeVisible float64 `json:"TimeVisible"`
Type string `json:"type"`
Wrist []float64 `json:"wrist"`
}
// Pointable is a Leap Motion pointing motion that has been detected
type Pointable struct {
Bases [][][]float64 `json:"bases"`
BTipPosition []float64 `json:"btipPosition"`
CarpPosition []float64 `json:"carpPosition"`
DipPosition []float64 `json:"dipPosition"`
Direction []float64 `json:"direction"`
Extended bool `json:"extended"`
HandID int `json:"handId"`
ID int `json:"id"`
Length float64 `json:"length"`
MCPPosition []float64 `json:"mcpPosition"`
PIPPosition []float64 `json:"pipPosition"`
StabilizedTipPosition []float64 `json:"stabilizedTipPosition"`
TimeVisible float64 `json:"timeVisible"`
TipPosition []float64 `json:"tipPosition"`
TipVelocity []float64 `json:"tipVelocity"`
Tool bool `json:"tool"`
TouchDistance float64 `json:"touchDistance"`
TouchZone string `json:"touchZone"`
Type int `json:"type"`
Width float64 `json:"width"`
}
// InteractionBox is the area within which the gestural interaction has been detected
type InteractionBox struct {
Center []float64 `json:"center"`
Size []float64 `json:"size"`
}
// Frame is the base representation returned that holds every other objects
type Frame struct {
CurrentFrameRate float64 `json:"currentFrameRate"`
Gestures []Gesture `json:"gestures"`
Hands []Hand `json:"hands"`
ID int `json:"id"`
InteractionBox InteractionBox `json:"interactionBox"`
Pointables []Pointable `json:"pointables"`
R [][]float64 `json:"r"`
S float64 `json:"s"`
T []float64 `json:"t"`
Timestamp uint64 `json:"timestamp"`
}
// X returns hand x value
func (h *Hand) X() float64 {
return h.PalmPosition[0]
}
// Y returns hand y value
func (h *Hand) Y() float64 {
return h.PalmPosition[1]
}
// Z returns hand z value
func (h *Hand) Z() float64 {
return h.PalmPosition[2]
}
// ParseFrame converts json data to a Frame
func (l *Driver) ParseFrame(data []byte) Frame {
var frame Frame
json.Unmarshal(data, &frame)
return frame
}