小明编程近日LeapMotion发布了API 2.0，增加了追踪稳定性、新的手势、更多的手指骨骼点、跟踪可信性。可以登录 https://developer.leapmotion.com/下载新的SDK，或者了解新的2.0有哪些新的特性。本周末我也尽力带来一篇简单的介绍文章，看看2.0到底好在哪里！
下面是一些官方图片，先睹为快：
三只手也可以识别，四个也是，只是越多越不容易识别出来~~
2.0的c++代码
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 |
/******************************************************************************\ * Copyright (C) 2012-2014 Leap Motion, Inc. All rights reserved. * * Leap Motion proprietary and confidential. Not for distribution. * * Use subject to the terms of the Leap Motion SDK Agreement available at * * https://developer.leapmotion.com/sdk_agreement, or another agreement * * between Leap Motion and you, your company or other organization. * \******************************************************************************/ #include <iostream> #include "Leap.h" using namespace Leap; class SampleListener : public Listener { public: virtual void onInit(const Controller&); virtual void onConnect(const Controller&); virtual void onDisconnect(const Controller&); virtual void onExit(const Controller&); virtual void onFrame(const Controller&); virtual void onFocusGained(const Controller&); virtual void onFocusLost(const Controller&); virtual void onDeviceChange(const Controller&); virtual void onServiceConnect(const Controller&); virtual void onServiceDisconnect(const Controller&); private: }; const std::string fingerNames[] = {"Thumb", "Index", "Middle", "Ring", "Pinky"}; const std::string boneNames[] = {"Metacarpal", "Proximal", "Middle", "Distal"}; const std::string stateNames[] = {"STATE_INVALID", "STATE_START", "STATE_UPDATE", "STATE_END"}; void SampleListener::onInit(const Controller& controller) { std::cout << "Initialized" << std::endl; } void SampleListener::onConnect(const Controller& controller) { std::cout << "Connected" << std::endl; controller.enableGesture(Gesture::TYPE_CIRCLE); controller.enableGesture(Gesture::TYPE_KEY_TAP); controller.enableGesture(Gesture::TYPE_SCREEN_TAP); controller.enableGesture(Gesture::TYPE_SWIPE); } void SampleListener::onDisconnect(const Controller& controller) { // Note: not dispatched when running in a debugger. std::cout << "Disconnected" << std::endl; } void SampleListener::onExit(const Controller& controller) { std::cout << "Exited" << std::endl; } void SampleListener::onFrame(const Controller& controller) { // Get the most recent frame and report some basic information const Frame frame = controller.frame(); std::cout << "Frame id: " << frame.id() << ", timestamp: " << frame.timestamp() << ", hands: " << frame.hands().count() << ", fingers: " << frame.fingers().count() << ", tools: " << frame.tools().count() << ", gestures: " << frame.gestures().count() << std::endl; HandList hands = frame.hands(); for (HandList::const_iterator hl = hands.begin(); hl != hands.end(); ++hl) { // Get the first hand const Hand hand = *hl; std::string handType = hand.isLeft() ? "Left hand" : "Right hand"; std::cout << std::string(2, ' ') << handType << ", id: " << hand.id() << ", palm position: " << hand.palmPosition() << std::endl; // Get the hand's normal vector and direction const Vector normal = hand.palmNormal(); const Vector direction = hand.direction(); // Calculate the hand's pitch, roll, and yaw angles std::cout << std::string(2, ' ') << "pitch: " << direction.pitch() * RAD_TO_DEG << " degrees, " << "roll: " << normal.roll() * RAD_TO_DEG << " degrees, " << "yaw: " << direction.yaw() * RAD_TO_DEG << " degrees" << std::endl; // Get fingers const FingerList fingers = hand.fingers(); for (FingerList::const_iterator fl = fingers.begin(); fl != fingers.end(); ++fl) { const Finger finger = *fl; std::cout << std::string(4, ' ') << fingerNames[finger.type()] << " finger, id: " << finger.id() << ", length: " << finger.length() << "mm, width: " << finger.width() << std::endl; // Get finger bones for (int b = 0; b < 4; ++b) { Bone::Type boneType = static_cast<Bone::Type>(b); Bone bone = finger.bone(boneType); std::cout << std::string(6, ' ') << boneNames[boneType] << " bone, start: " << bone.prevJoint() << ", end: " << bone.nextJoint() << ", direction: " << bone.direction() << std::endl; } } } // Get tools const ToolList tools = frame.tools(); for (ToolList::const_iterator tl = tools.begin(); tl != tools.end(); ++tl) { const Tool tool = *tl; std::cout << std::string(2, ' ') << "Tool, id: " << tool.id() << ", position: " << tool.tipPosition() << ", direction: " << tool.direction() << std::endl; } // Get gestures const GestureList gestures = frame.gestures(); for (int g = 0; g < gestures.count(); ++g) { Gesture gesture = gestures[g]; switch (gesture.type()) { case Gesture::TYPE_CIRCLE: { CircleGesture circle = gesture; std::string clockwiseness; if (circle.pointable().direction().angleTo(circle.normal()) <= PI/4) { clockwiseness = "clockwise"; } else { clockwiseness = "counterclockwise"; } // Calculate angle swept since last frame float sweptAngle = 0; if (circle.state() != Gesture::STATE_START) { CircleGesture previousUpdate = CircleGesture(controller.frame(1).gesture(circle.id())); sweptAngle = (circle.progress() - previousUpdate.progress()) * 2 * PI; } std::cout << std::string(2, ' ') << "Circle id: " << gesture.id() << ", state: " << stateNames[gesture.state()] << ", progress: " << circle.progress() << ", radius: " << circle.radius() << ", angle " << sweptAngle * RAD_TO_DEG << ", " << clockwiseness << std::endl; break; } case Gesture::TYPE_SWIPE: { SwipeGesture swipe = gesture; std::cout << std::string(2, ' ') << "Swipe id: " << gesture.id() << ", state: " << stateNames[gesture.state()] << ", direction: " << swipe.direction() << ", speed: " << swipe.speed() << std::endl; break; } case Gesture::TYPE_KEY_TAP: { KeyTapGesture tap = gesture; std::cout << std::string(2, ' ') << "Key Tap id: " << gesture.id() << ", state: " << stateNames[gesture.state()] << ", position: " << tap.position() << ", direction: " << tap.direction()<< std::endl; break; } case Gesture::TYPE_SCREEN_TAP: { ScreenTapGesture screentap = gesture; std::cout << std::string(2, ' ') << "Screen Tap id: " << gesture.id() << ", state: " << stateNames[gesture.state()] << ", position: " << screentap.position() << ", direction: " << screentap.direction()<< std::endl; break; } default: std::cout << std::string(2, ' ') << "Unknown gesture type." << std::endl; break; } } if (!frame.hands().isEmpty() || !gestures.isEmpty()) { std::cout << std::endl; } } void SampleListener::onFocusGained(const Controller& controller) { std::cout << "Focus Gained" << std::endl; } void SampleListener::onFocusLost(const Controller& controller) { std::cout << "Focus Lost" << std::endl; } void SampleListener::onDeviceChange(const Controller& controller) { std::cout << "Device Changed" << std::endl; const DeviceList devices = controller.devices(); for (int i = 0; i < devices.count(); ++i) { std::cout << "id: " << devices[i].toString() << std::endl; std::cout << " isStreaming: " << (devices[i].isStreaming() ? "true" : "false") << std::endl; } } void SampleListener::onServiceConnect(const Controller& controller) { std::cout << "Service Connected" << std::endl; } void SampleListener::onServiceDisconnect(const Controller& controller) { std::cout << "Service Disconnected" << std::endl; } int main() { // Create a sample listener and controller SampleListener listener; Controller controller; // Have the sample listener receive events from the controller controller.addListener(listener); // Keep this process running until Enter is pressed std::cout << "Press Enter to quit..." << std::endl; std::cin.get(); // Remove the sample listener when done controller.removeListener(listener); return 0; } |
