LeapMotion开发（一）--下载安装以及C++环境配置

手边还有一台快生锈的leap motion,闲来无事捣鼓下，先来写几篇入门的教程，之后会写点简单好玩的demo~~~

 

 

准备工作：

LeapmotionSDK下载：

https://developer.leapmotion.com/get-started?id=v3-developer-beta&platform=windows&version=3.1.3.41910

 

解压之后双击EXE安装SDK

 

安装完SDK之后打开App　Home，注册登录之后就可以试下最简单的ｄｅｍｏ感受下效果，如果提示leap motion未连接，可以拔掉重试或者点开桌面右下角leap motion的图标检查故障，如果能正常运行程序那么说明我们的硬件部分没有问题。

 

 

 

下面可以打开Leap_Motion_SDK_Win_3.1.3\LeapSDK\samples目录下的sln文件测试C++能否正常运行，本文用的VS2015，提示版本不兼容的时候直接升版本就好，如果用的VS2010或者VS2012选择对应版本的Sln即可。

 

 

下面介绍如何新建一个Leap motion项目配置环境并成功运行示例程序。

 

类似于opencv的配置环境，我们需要做三件事儿：

 

1.    把dll添加进环境变量（如果不想添加进环境变量可以把dll拷贝进调试目录）

路径为：C:\Users\zmdsj\Desktop\Leap_Motion_SDK_Win_3.1.3\LeapSDK\lib\x86

 

2.    添加附加依赖项

项目-属性-连接器-输入-附加依赖项添加Leap.lib

 

 

3.    添加包含目录和库目录

包含目录C:\Users\zmdsj\Desktop\Leap_Motion_SDK_Win_3.1.3\LeapSDK\include

库目录：C:\Users\zmdsj\Desktop\Leap_Motion_SDK_Win_3.1.3\LeapSDK\lib

 

 

下面新建一个cpp文件将以下代码复制粘贴上即可（就是sample.cpp）

/******************************************************************************\
* Copyright (C) 2012-2016 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 <cstring>
#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&);
	virtual void onServiceChange(const Controller&);
	virtual void onDeviceFailure(const Controller&);
	virtual void onLogMessage(const Controller&, MessageSeverity severity, int64_t timestamp, const char* msg);
};

const std::string fingerNames[] = { "Thumb", "Index", "Middle", "Ring", "Pinky" };
const std::string boneNames[] = { "Metacarpal", "Proximal", "Middle", "Distal" };

void SampleListener::onInit(const Controller& controller) {
	std::cout << "Initialized" << std::endl;
}

void SampleListener::onConnect(const Controller& controller) {
	std::cout << "Connected" << std::endl;
}

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()
		<< ", extended fingers: " << frame.fingers().extended().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 the Arm bone
		Arm arm = hand.arm();
		/*
		std::cout << std::string(2, ' ') <<  "Arm direction: " << arm.direction()
		<< " wrist position: " << arm.wristPosition()
		<< " elbow position: " << arm.elbowPosition() << 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;
				*/
			}
		}
	}

	if (!frame.hands().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;
		std::cout << "  isSmudged:" << (devices[i].isSmudged() ? "true" : "false") << std::endl;
		std::cout << "  isLightingBad:" << (devices[i].isLightingBad() ? "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;
}

void SampleListener::onServiceChange(const Controller& controller) {
	std::cout << "Service Changed" << std::endl;
}

void SampleListener::onDeviceFailure(const Controller& controller) {
	std::cout << "Device Error" << std::endl;
	const Leap::FailedDeviceList devices = controller.failedDevices();

	for (FailedDeviceList::const_iterator dl = devices.begin(); dl != devices.end(); ++dl) {
		const FailedDevice device = *dl;
		std::cout << "  PNP ID:" << device.pnpId();
		std::cout << "    Failure type:" << device.failure();
	}
}

void SampleListener::onLogMessage(const Controller&, MessageSeverity s, int64_t t, const char* msg) {
	switch (s) {
	case Leap::MESSAGE_CRITICAL:
		std::cout << "[Critical]";
		break;
	case Leap::MESSAGE_WARNING:
		std::cout << "[Warning]";
		break;
	case Leap::MESSAGE_INFORMATION:
		std::cout << "[Info]";
		break;
	case Leap::MESSAGE_UNKNOWN:
		std::cout << "[Unknown]";
	}
	std::cout << "[" << t << "] ";
	std::cout << msg << std::endl;
}

int main(int argc, char** argv) {
	// Create a sample listener and controller
	SampleListener listener;
	Controller controller;

	// Have the sample listener receive events from the controller
	controller.addListener(listener);

	if (argc > 1 && strcmp(argv[1], "--bg") == 0)
		controller.setPolicy(Leap::Controller::POLICY_BACKGROUND_FRAMES);

	controller.setPolicy(Leap::Controller::POLICY_ALLOW_PAUSE_RESUME);

	// Keep this process running until Enter is pressed
	std::cout << "Press Enter to quit, or enter 'p' to pause or unpause the service..." << std::endl;

	bool paused = false;
	while (true) {
		char c = std::cin.get();
		if (c == 'p') {
			paused = !paused;
			controller.setPaused(paused);
			std::cin.get(); //skip the newline
		}
		else
			break;
	}

	// Remove the sample listener when done
	controller.removeListener(listener);

	return 0;
}

结果如图：

手指部分太多我就先注释掉了，这样看上去清爽一点，233

 

最后祝大家编程愉快~