696 lines
16 KiB
Markdown
696 lines
16 KiB
Markdown
# 接口调用履历
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本文档用于快速梳理当前项目里“前端请求 -> WASM 导出函数 -> C++ 分发层 -> 业务实现文件”的执行链路,便于对照源码阅读。
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## 1. 建议先看的总入口
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建议按下面顺序看文件:
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1. `src/main.cpp`
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说明这个工程最终是一个 WASM 可执行模块,`main` 主要用于本地构建提示。
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2. `src/smart_json_wrapper.cpp`
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这里是所有 WASM 导出函数的真正入口。
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3. `include/KinematicsWebAPI.h`
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业务接口类声明,能看见分发结构。
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4. `src/api/KinematicsWebAPI.Core.cpp`
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业务 JSON 请求的总分发入口。
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5. `src/api/KinematicsWebAPI.*Commands.cpp`
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按功能拆开的命令处理层。
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6. 对应底层业务文件
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机器人看 `src/Robot.cpp`、`src/RobotManager.cpp`
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SPC 看 `src/spc_core.cpp`
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四连杆看 `src/FourBarMechanism/`
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四足看 `src/QuadrupedRobotSimulation/`
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## 2. 顶层 WASM 导出接口
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### 2.1 业务接口导出
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前端主调的是这两个导出函数:
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- `init_func`
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- `func`
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调用链如下:
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```text
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JS/HTML
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-> public/wasm/smart_api_wrapper.js
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-> WASM 导出函数 init_func / func
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-> src/smart_json_wrapper.cpp
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-> KinematicsWebAPI
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-> src/api/KinematicsWebAPI.Core.cpp
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-> 各功能 Commands 文件
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-> 底层业务实现
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```
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### 2.2 智能数学/测试接口导出
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这一套和业务接口是并行的另一条线:
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- `smart_process_json`
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- `smart_get_function_list`
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- `smart_get_function_info`
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- `smart_test_match`
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- `smart_get_version`
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调用链如下:
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```text
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JS/HTML
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-> public/wasm/smart_api_wrapper.js
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-> smart_* 导出函数
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-> src/smart_json_wrapper.cpp
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-> SmartJsonProcessor / FunctionRegistry
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-> math_utils / 注册的测试函数
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```
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这一套主要是“数学函数演示 + 智能参数匹配”,不走 `KinematicsWebAPI`。
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## 3. 业务总分发链路
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### 3.1 初始化
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`src/smart_json_wrapper.cpp` 中:
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- `init_func()`
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- 首次调用时创建全局单例 `global_server = new KinematicsWebAPI()`
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- `KinematicsWebAPI` 构造函数里会继续调用 `KinematicsWebAPI::init_func()`
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`src/api/KinematicsWebAPI.Core.cpp` 中:
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- `KinematicsWebAPI::init_func()`
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- 从 `include/URDFStrings.h` 读取默认 URDF
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- 调用 `RobotManager::initRobot(...)`
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- 默认会初始化两个机器人实例
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### 3.2 请求处理
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`src/smart_json_wrapper.cpp`
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- `func(const char* json_request)`
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- 把前端 JSON 字符串转成 `std::string`
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- 调 `global_server->func(request_str)`
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`src/api/KinematicsWebAPI.Core.cpp`
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- `KinematicsWebAPI::func(std::string sanitized_body)`
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- 解析 JSON
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- 取出 `msg / req_code / req_from / req_cmd / req_param`
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- 调 `dispatchCommand(req_cmd, req_param)`
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- 最后统一封装为 `utils::create_api_response(...)`
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- `KinematicsWebAPI::dispatchCommand(...)`
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- 机器人类命令 -> `handleRobotCommand(...)`
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- SPC -> `handleSpcCommand(...)`
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- 四连杆 -> `handleFourBarCommand(...)`
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- 四足 -> `handleQuadrupedCommand(...)`
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## 4. 机器人相关接口履历
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机器人相关命令都在:
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- `src/api/KinematicsWebAPI.RobotCommands.cpp`
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底层核心文件:
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- `src/RobotManager.cpp`
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- `src/Robot.cpp`
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### 4.1 `Cmd_InitRobot`
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调用履历:
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```text
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func
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-> KinematicsWebAPI::dispatchCommand
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-> KinematicsWebAPI::handleRobotCommand
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-> Cmd_InitRobot 分支
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-> utils::base64_to_urdf
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-> utils::validate_urdf_base64
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-> RobotManager::initRobot
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-> Robot::initRobot
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```
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底层细节:
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- `RobotManager::initRobot`
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- 创建 `std::shared_ptr<Robot>`
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- 调 `robot->initRobot(urdf_robot)`
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- 生成或使用 `robot_uuid`
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- 计算 URDF 哈希
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- 调 `_validateKinematics(robot)` 做基本正解验证
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- 存入 `_kinematics_table`
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- `Robot::initRobot`
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- `kdl_parser::treeFromString(...)`
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- `tree.getChain("base", "tool0", kinematicChain)`
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- `parseJointChildLinkUuidsFromUrdf(...)`
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- 初始化 FK / IK 求解器
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### 4.2 `Cmd_GetRobot`
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_GetRobot
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-> RobotManager::getRobot
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-> Robot::isInitialized / Robot::getNumberOfJoints
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```
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### 4.3 `Cmd_RemoveRobot`
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_RemoveRobot
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-> RobotManager::removeRobot
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```
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### 4.4 `Cmd_ListRobots`
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_ListRobots
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-> RobotManager::listRobots
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-> detail=true 时内部还会调 RobotManager::_validateKinematics
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-> Robot::calculateFK_TCP
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```
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### 4.5 `Cmd_Kinematics_forward_pose_str`
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用途:
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- 输入一组 6 轴关节角
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- 输出 TCP 位姿
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_Kinematics_forward_pose_str
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-> RobotManager::getRobot
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-> Robot::parseJointString
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-> Robot::calculateFK_TCP
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```
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`Robot::calculateFK_TCP` 内部主要做:
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- 关节数组转 `KDL::JntArray`
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- `fkSolver->JntToCart(...)`
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- 取出位置和四元数
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### 4.6 `Cmd_Kinematics_forward_all_joints`
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用途:
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- 输入一帧或多帧关节角列表
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- 输出每个关节节点的位姿,组织成前端使用的 `OPERATION.frames[].objStates`
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_Kinematics_forward_all_joints
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-> RobotManager::getRobot
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-> Robot::handleKinematicsForwardAllJoints
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-> Robot::parseJointListString
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-> Robot::kinematicsForwardAllJointsList
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-> Robot::forwardKinematics
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-> Robot::getJointUuidByIndex
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```
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补充说明:
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- `Robot::handleKinematicsForwardAllJoints(...)`
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- 遍历每一帧关节角
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- 每帧都调一次 `kinematicsForwardAllJointsList(...)`
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- `Robot::kinematicsForwardAllJointsList(...)`
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- 调 `forwardKinematics(...)`
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- 把 6 个关节的位姿打包成 `objStates`
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### 4.7 `Cmd_Kinematics_inverse_pose_str_NoDifference`
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用途:
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- 输入一个或多个姿态点
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- 不做插补,直接逐点逆解
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_Kinematics_inverse_pose_str_NoDifference
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-> RobotManager::getRobot
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-> Robot::inversePoseStrNoDifference
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-> Robot::parsePoseString
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-> Robot::parseJointString
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-> Robot::inverse(vector)
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-> Robot::calculateIK_LMA
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```
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### 4.8 `Cmd_Kinematics_inverse_pose_str`
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用途:
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- 输入多个姿态点
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- 相邻姿态间先自动插补轨迹,再逐点逆解
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_Kinematics_inverse_pose_str
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-> RobotManager::getRobot
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-> Robot::inversePoseStr
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-> Robot::parsePoseString
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-> Robot::parseJointString
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-> Robot::calculateAutoSteps
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-> Robot::trajectoryPlanning
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-> Robot::inverse(vector)
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-> Robot::calculateIK_LMA
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```
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关键点:
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- `calculateAutoSteps(...)` 根据位置差和姿态差自动算插补点数
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- `trajectoryPlanning(...)` 调 KDL 轨迹插补
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- 每个插补点再进入 `inverse(...)`
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### 4.9 `Cmd_Kinematics_inverse_pose_str_2PSteps`
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用途:
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- 只取两个姿态点
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- 按指定 `steps` 做轨迹插补
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> Cmd_Kinematics_inverse_pose_str_2PSteps
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-> RobotManager::getRobot
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-> Robot::inversePoseStr2PSteps
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-> Robot::parsePoseString
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-> Robot::parseJointString
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-> Robot::trajectoryPlanning(..., steps)
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-> Robot::inverse(vector)
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-> Robot::calculateIK_LMA
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```
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### 4.10 `Cmd_SelectCraftTree` / `Cmd_AddOperationTree`
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这两个目前是轻量占位接口。
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleRobotCommand
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-> 直接在 KinematicsWebAPI.RobotCommands.cpp 内拼装返回 JSON
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```
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当前没有继续下钻到独立业务类。
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## 5. SPC 接口履历
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命令文件:
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- `src/api/KinematicsWebAPI.SpcCommands.cpp`
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底层文件:
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- `include/spc_core.h`
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- `src/spc_core.cpp`
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### 5.1 `Cmd_Spc`
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleSpcCommand
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-> SpcCalculator::Spc
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-> SpcTestData::FromJson
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-> SpcCalculator::CalculateXR
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-> SpcCalculator::CalculateXS
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-> SpcCalculator::CalculateCpk
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-> SpcCalculator::RoundSpcData
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-> SpcResultJson::ToJson
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```
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底层职责分布:
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- `SpcTestData::FromJson`
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- 从请求中读取 `n / k / usl / lsl / x`
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- `CalculateXR`
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- 算 X-R 控制图
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- `CalculateXS`
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- 算 X-S 控制图
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- `CalculateCpk`
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- 算过程能力指数和直方图数据
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- `RoundSpcData`
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- 做统一小数位保留
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## 6. 四连杆接口履历
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命令文件:
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- `src/api/KinematicsWebAPI.FourBarCommands.cpp`
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底层文件:
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- `include/FourBarMechanism/CrankSliderMechanism.h`
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- `src/FourBarMechanism/CrankSliderMechanism.cpp`
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### 6.1 `Cmd_FourBar_CrankSlider`
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleFourBarCommand
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-> createCrankSliderMechanism
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-> CrankSliderMechanism::setL_AB / setL_BS / setS_OFS
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-> CrankSliderMechanism::validateParameters
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-> CrankSliderMechanism::calculate
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-> CrankSliderMechanism::getTrajectoryPoints
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-> CrankSliderMechanism::getSliderTrajectory
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```
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说明:
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- 命令层负责把参数取出来、调机制对象、再把结果组装成 JSON
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- 真正的机构计算在 `src/FourBarMechanism/CrankSliderMechanism.cpp`
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### 6.2 `Cmd_FourBar_CrankSlider_Simulate`
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用途:
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- 输入曲柄滑块初始参数、起始角度、结束角度、总时长和步长时间
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- 一次性生成整段仿真帧数据,适合前端播放、导出轨迹和离线验证
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleFourBarCommand
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-> createCrankSliderMechanism
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-> CrankSliderMechanism::setL_AB / setL_BS / setS_OFS
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-> CrankSliderMechanism::validateParameters
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-> for each frame:
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-> CrankSliderMechanism::calculate(currentAngleDeg)
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-> CrankSliderMechanism::getTrajectoryPoints
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-> CrankSliderMechanism::getSliderTrajectory
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```
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主要入参:
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- `L_AB`:曲柄长度
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- `L_BS`:连杆长度
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- `S_OFS`:滑块偏移
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- `startAngleDeg`:起始曲柄角度
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- `endAngleDeg`:结束曲柄角度
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- `duration`:仿真总时长,单位秒
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- `stepTime`:仿真步长时间,单位秒
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主要出参:
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- `frames[]`:逐帧仿真数据,每帧包含 `frame`、`time`、`angleDeg`、`points`、`poses`、`angles`
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- `trajectory`:B 点整段轨迹
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- `slider_trajectory`:S 点整段滑块轨迹
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### 6.3 `Cmd_FourBar_Simulate`
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用途:
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- 统一仿真 PDPS 连杆定义界面中的 `PRRR / RPRR / RRRP / RRRR` 四类结构
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- 输入机构类型、起始输入、结束输入、总时长和步长时间
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- 一次性返回逐帧点位、姿态、角度和轨迹,适合前端 Three.js 播放和 ECharts 曲线验证
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调用履历:
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```text
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func
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-> dispatchCommand
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-> handleFourBarCommand
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-> simulateUnifiedFourBar
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-> 按 mechanismType 创建或调用对应机构类
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-> validateParameters
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-> for each frame:
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-> calculate(currentInput)
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-> 组装 frames / trajectory / parameters
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```
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类型映射:
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- `RRRP`:调用 `CrankSliderMechanism`,角度驱动曲柄滑块正解
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- `PRRR`:调用 `SliderCrankMechanism`,滑块位移驱动曲柄滑块逆解
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- `RPRR`:调用 `CrankRockingBlockMechanism_Forward`,当前按曲柄摇块正解承接
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- `RRRR`:调用 `FourBarMechanism`,角度驱动四转副四杆正解
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主要公共入参:
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- `mechanismType`:`PRRR`、`RPRR`、`RRRP`、`RRRR`
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- `startValue` / `endValue`:统一输入范围,角度驱动类型表示角度,`PRRR` 表示滑块 X
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- `duration`:仿真总时长,单位秒
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- `stepTime`:仿真步长时间,单位秒
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各类型参数:
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- `RRRP`:`L_AB`、`L_BS`、`S_OFS`
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- `PRRR`:`L_AB`、`L_BS`、`S_OFS`,也可使用 `startSliderX` / `endSliderX`
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- `RPRR`:`OA`、`AB`、`OC`
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- `RRRR`:`L1`、`L2`、`L3`、`L4`
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主要出参:
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- `mechanismType`:实际仿真的机构类型
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- `inputName`:当前输入字段名,`angleDeg` 或 `sliderX`
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- `frames[]`:逐帧仿真数据,每帧包含 `frame`、`time`、`inputValue`、`points`、`poses`、`angles`
|
||
- `trajectory`:主运动点轨迹
|
||
- `slider_trajectory`:滑块轨迹,适用于 `RRRP / PRRR`
|
||
- `alternative_trajectory`:备选逆解轨迹,适用于 `PRRR`
|
||
- `trajectory_c`:C 点轨迹,适用于 `RRRR`
|
||
- `crank_circle`:曲柄端点轨迹,适用于 `RPRR / RRRR`
|
||
- `rocker_trajectory`:摇块轨迹,适用于 `RPRR`
|
||
|
||
注意:
|
||
|
||
- `RPRR` 当前先复用现有曲柄摇块正解类,PDPS 中输入/输出链节的方向、坐标系和安装约定后续如有更精确资料,可继续对齐参数语义。
|
||
|
||
## 7. 四足机器人接口履历
|
||
|
||
命令文件:
|
||
|
||
- `src/api/KinematicsWebAPI.QuadrupedCommands.cpp`
|
||
|
||
中间帮助层:
|
||
|
||
- `include/QuadrupedRobotSimulation/KinematicsHelper.h`
|
||
- `src/QuadrupedRobotSimulation/KinematicsHelper.cpp`
|
||
|
||
底层实现文件:
|
||
|
||
- `src/QuadrupedRobotSimulation/KinematicsSimulation.cpp`
|
||
- `src/QuadrupedRobotSimulation/KinematicsReverse.cpp`
|
||
- `src/QuadrupedRobotSimulation/CompleteJsonExporter.cpp`
|
||
- `src/QuadrupedRobotSimulation/RobotConfig.cpp`
|
||
- `src/QuadrupedRobotSimulation/SharedGeometry.cpp`
|
||
|
||
### 7.1 `Cmd_QuadrupedRobot_CalculateAllPointsFromMotorAngles`
|
||
|
||
用途:
|
||
|
||
- 输入电机角
|
||
- 反推出各关键点坐标
|
||
|
||
调用履历:
|
||
|
||
```text
|
||
func
|
||
-> dispatchCommand
|
||
-> handleQuadrupedCommand
|
||
-> KinematicsHelper::QuadrupedRobot_CalculateAllPointsFromMotorAngles
|
||
-> KinematicsHelper::RobotGaitDataManagerFromJson
|
||
-> ReverseKinematicsCalculator
|
||
-> ReverseKinematicsCalculator::CalculateAllPointsFromMotorAnglesJsonStr
|
||
-> json::parse
|
||
```
|
||
|
||
说明:
|
||
|
||
- 数据管理入口在 `RobotGaitDataManagerFromJson(...)`
|
||
- 反解主逻辑在 `src/QuadrupedRobotSimulation/KinematicsReverse.cpp`
|
||
|
||
### 7.2 `Cmd_QuadrupedRobot_PerformForwardKinematics`
|
||
|
||
用途:
|
||
|
||
- 输入步态/系统参数
|
||
- 正向生成四足机器人整段步态轨迹
|
||
|
||
调用履历:
|
||
|
||
```text
|
||
func
|
||
-> dispatchCommand
|
||
-> handleQuadrupedCommand
|
||
-> KinematicsHelper::QuadrupedRobot_PerformForwardKinematics
|
||
-> KinematicsHelper::RobotGaitDataManagerFromJson
|
||
-> QuadrupedRobotConfiguration
|
||
-> QuadrupedRobotSimulation
|
||
-> QuadrupedRobotSimulation::CalculateAllTrajectoriesJsonString
|
||
-> CompleteJsonExporter::ExportCompleteDataJsonString
|
||
-> json::parse
|
||
```
|
||
|
||
说明:
|
||
|
||
- 配置拼装在 `RobotConfig.cpp`
|
||
- 轨迹生成主体在 `KinematicsSimulation.cpp`
|
||
- 最终 JSON 打包在 `CompleteJsonExporter.cpp`
|
||
|
||
## 8. 智能数学接口履历
|
||
|
||
这部分不是机器人业务,但也常会看到。
|
||
|
||
核心文件:
|
||
|
||
- `src/smart_json_wrapper.cpp`
|
||
- `include/smart_json_wrapper.h`
|
||
- `src/math_utils.cpp`
|
||
|
||
### 8.1 `smart_process_json`
|
||
|
||
调用履历:
|
||
|
||
```text
|
||
smart_process_json
|
||
-> SmartJsonProcessor::processRequest
|
||
-> 解析 req_cmd
|
||
-> FunctionRegistry::getFunction
|
||
-> SmartJsonProcessor::parseJsonParams
|
||
-> FunctionRegistry::smartMatchParams
|
||
-> FunctionInfo::validateParams
|
||
-> function handler lambda
|
||
-> math_utils 中的 add/subtract/multiply/divide/fibonacci 等
|
||
```
|
||
|
||
### 8.2 `smart_get_function_list`
|
||
|
||
调用履历:
|
||
|
||
```text
|
||
smart_get_function_list
|
||
-> SmartJsonProcessor::getAvailableFunctions
|
||
-> FunctionRegistry::getAllFunctions
|
||
```
|
||
|
||
### 8.3 `smart_get_function_info`
|
||
|
||
调用履历:
|
||
|
||
```text
|
||
smart_get_function_info
|
||
-> SmartJsonProcessor::getFunctionInfo
|
||
-> FunctionRegistry::getFunction
|
||
```
|
||
|
||
### 8.4 `smart_test_match`
|
||
|
||
调用履历:
|
||
|
||
```text
|
||
smart_test_match
|
||
-> 解析 req_cmd
|
||
-> FunctionRegistry::getFunction
|
||
-> SmartJsonProcessor::parseJsonParams
|
||
-> FunctionRegistry::smartMatchParams
|
||
-> 返回匹配结果,不真正执行业务函数
|
||
```
|
||
|
||
## 9. 文件职责一览
|
||
|
||
### 9.1 入口层
|
||
|
||
- `src/main.cpp`
|
||
- 构建入口,基本不承接业务
|
||
- `src/smart_json_wrapper.cpp`
|
||
- 所有 WASM 导出函数
|
||
- 业务接口入口和智能数学接口入口都在这里
|
||
|
||
### 9.2 业务分发层
|
||
|
||
- `src/api/KinematicsWebAPI.Core.cpp`
|
||
- 总分发
|
||
- `src/api/KinematicsWebAPI.RobotCommands.cpp`
|
||
- 机器人接口分支
|
||
- `src/api/KinematicsWebAPI.SpcCommands.cpp`
|
||
- SPC 接口分支
|
||
- `src/api/KinematicsWebAPI.FourBarCommands.cpp`
|
||
- 四连杆接口分支
|
||
- `src/api/KinematicsWebAPI.QuadrupedCommands.cpp`
|
||
- 四足接口分支
|
||
|
||
### 9.3 业务实现层
|
||
|
||
- `src/RobotManager.cpp`
|
||
- 机器人实例生命周期管理
|
||
- `src/Robot.cpp`
|
||
- 机器人 KDL 正解、逆解、轨迹插补、前端返回格式组装
|
||
- `src/spc_core.cpp`
|
||
- SPC 计算主体
|
||
- `src/FourBarMechanism/*.cpp`
|
||
- 连杆/曲柄滑块算法
|
||
- `src/QuadrupedRobotSimulation/*.cpp`
|
||
- 四足机器人轨迹与反解
|
||
|
||
## 10. 如果你要继续顺着看,推荐顺序
|
||
|
||
如果你想先搞清“机器人接口”:
|
||
|
||
1. `src/smart_json_wrapper.cpp` 里的 `func`
|
||
2. `src/api/KinematicsWebAPI.Core.cpp`
|
||
3. `src/api/KinematicsWebAPI.RobotCommands.cpp`
|
||
4. `src/RobotManager.cpp`
|
||
5. `src/Robot.cpp`
|
||
|
||
如果你想先搞清“四足机器人接口”:
|
||
|
||
1. `src/api/KinematicsWebAPI.QuadrupedCommands.cpp`
|
||
2. `src/QuadrupedRobotSimulation/KinematicsHelper.cpp`
|
||
3. `src/QuadrupedRobotSimulation/KinematicsSimulation.cpp`
|
||
4. `src/QuadrupedRobotSimulation/KinematicsReverse.cpp`
|
||
5. `src/QuadrupedRobotSimulation/CompleteJsonExporter.cpp`
|
||
|
||
如果你想先搞清“SPC 接口”:
|
||
|
||
1. `src/api/KinematicsWebAPI.SpcCommands.cpp`
|
||
2. `src/spc_core.cpp`
|
||
3. `include/spc_core.h`
|