Visual C++下使用PCL库处理兔子点云成图

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资源摘要信息: "Project2.rar_Visual_C++_PCL点云兔子成图" 在计算机视觉和图形学领域,点云处理是一个重要的研究方向,点云数据可以由各种设备如激光扫描仪、深度相机等获取,而点云库(Point Cloud Library,简称PCL)是一个广泛使用的开源库,专门用于处理这些点云数据。从描述中我们可以提取出以下知识点: 1. PCL库(Point Cloud Library)介绍: - PCL是一个庞大的跨平台开源库,为2D/3D图像和点云处理提供了广泛的算法。 - 它包含了诸如滤波、特征提取、表面重建、模型拟合、数据分割等多种工具。 - PCL是用C++编写的,并且拥有良好的文档和社区支持,适用于机器人学、计算机视觉、虚拟现实等多个领域。 2. PCL在Visual C++中的应用: - Visual C++是微软推出的一款集成开发环境(IDE),主要用于C++等编程语言的开发。 - 开发者可以在Visual C++中集成PCL库,通过编写C++代码来处理点云数据。 - 在Visual C++环境下,可以使用PCL提供的API来对点云数据进行读取、处理和显示。 3. 点云数据文件格式(.pcd文件): - PCD(Point Cloud Data)文件是PCL库所使用的自定义格式,用于存储点云数据。 - PCD文件可以包含点云数据的各种属性,比如空间位置、颜色、强度等。 - 通过特定的解析器,可以读取PCD文件中的点云数据进行后续的处理和分析。 4. 兔子点云成图的处理流程: - 首先需要获取兔子的原始点云数据,这通常通过3D扫描设备完成。 - 然后使用PCL库中的滤波算法(如体素网格滤波)来减少点云的复杂度并消除噪声。 - 接下来,可能需要使用特征提取算法来识别兔子点云的关键特征。 - 再通过表面重建算法将点云转换为网格模型,以便于可视化。 - 最后,可以使用PCL提供的可视化工具将处理后的点云显示出来,形成兔子的三维图形。 5. 具体实现步骤(结合文件列表): - 兔子.cpp文件:这个文件很可能是包含C++代码的源文件,使用PCL库中的函数对兔子.pcd文件中的点云数据进行处理。 - rabbit.pcd文件:这个文件存储了兔子的点云数据,为C++源文件中的处理提供数据来源。 结合这些信息,我们可以通过以下步骤在Visual C++环境中实现兔子点云成图: 1. 在Visual C++中创建一个新的项目,并添加PCL库的支持。 2. 将兔子.pcd文件添加到项目中。 3. 编写C++代码(兔子.cpp),其中包括导入必要的PCL库头文件,以及定义主函数main。 4. 在main函数中,首先读取rabbit.pcd文件中的点云数据。 5. 接着应用一系列PCL算法来处理点云,如滤波去除噪声,以及使用特征提取算法分析点云特征。 6. 应用表面重建算法将点云转换为可渲染的三维模型。 7. 使用PCL的可视化模块,将处理后的点云数据渲染成图形,并显示在界面上。 8. 编译并运行项目,最终在Visual C++的环境下看到兔子的点云图形。 总结来说,本项目的核心在于使用PCL库在Visual C++环境中处理点云数据,并通过一系列的算法将其转换为可视化的三维图形。这个过程涵盖了从原始点云数据的读取、处理、到最终三维图形显示的完整流程。

帮我审查一下下带private Map<String, ItemsCustomTargetResult> getItemsCustomTargetResult(BidNodeViewDto bidNodeViewDto, Map<String, String> targetCodeMap) { Map<String, ItemsCustomTargetResult> itemsCustomTargetResultMap = new HashMap<>(); List<String> colName = new ArrayList<>(); colName.add(Constants.ProjectView.COL_NAME_EXPRESSION); colName.add(Constants.ProjectView.COL_NAME_EXPERSSION_VALUE); colName.add(Constants.ProjectView.COL_NAME_TOTAL); colName.add(Constants.ProjectView.COL_NAME_PERCENT); colName.add(Constants.ProjectView.COL_NAME_UNIT); for(String name : colName) { String value = null; if (Constants.ProjectView.COL_NAME_EXPRESSION.equals(name)) { value = bidNodeViewDto.getExpressionName() + ""; }else if(Constants.ProjectView.COL_NAME_EXPERSSION_VALUE.equals(name)) { value = bidNodeViewDto.getExpressionVal() + ""; }else if(Constants.ProjectView.COL_NAME_PERCENT.equals(name)) { value = bidNodeViewDto.getPercentTotal() + ""; }else if(Constants.ProjectView.COL_NAME_TOTAL.equals(name)) { value = bidNodeViewDto.getAmount() + ""; }else if(Constants.ProjectView.COL_NAME_UNIT.equals(name)) { value = bidNodeViewDto.getUnitIndex() + ""; } String targetCode = targetCodeMap.get(name); if(Strings.isBlank(targetCode)) { continue; } ItemsCustomTargetResult itemsCustomTargetResult = new ItemsCustomTargetResult(); itemsCustomTargetResultMap.put(targetCode,itemsCustomTargetResult.obtainItemsCustomTargetResult(targetCode, null, value, null)); } return itemsCustomTargetResultMap; }

2023-06-10 上传

将下面这条sql语句简化一下:SELECT * FROM ( SELECT fpd.fpd_id AS fpdId, fpd.fpd_budget_project AS fpdBudgetProject, fpd.fpd_budget_project_id AS fpdBudgetProjectId, fpd.fpd_pf_name AS fpdPfName, fpd.fpd_pf_id AS fpdPfId, fpd.fpd_expend_subject AS fpdExpendSubject, fpd.fpd_expend_subject_id AS fpdExpendSubjectId, fpd.fpd_payee_name AS fpdPayeeName, fpd.fpd_payee_account AS fpdPayeeAccount, fpd.fpd_payee_opening_bank AS fpdPayeeOpeningBank, fpd.fpd_payee_opening_bank_num AS fpdPayeeOpeningBankNum, fpd.fpd_dept_pay_economics_classify_num AS fpdDeptPayEconomicsClassifyNum, fpd.fpd_dept_pay_economics_classify_name AS fpdDeptPayEconomicsClassifyName, fpd.fpd_applied_amount AS fpdAppliedAmount, fpd.fpd_capital_use AS fpdCapitalUse, fpd.fpd_postscript AS fpdPostscript, fpd.fpd_budget_item_name AS fpdBudgetItemName, fpd.fpd_budget_item_number AS fpdBudgetItemNumber, fpd.fpd_dr_name AS fpdDrName, dbec.dbec_parent_num AS dbecParentNum FROM financial_payment_details fpd LEFT JOIN dept_budget_economy_class dbec ON fpd.fpd_dept_pay_economics_classify_num = dbec.dbec_num WHERE fpd.fpd_is_tax = "0" UNION ALL SELECT fpd.fpd_id AS fpdId, fpd.fpd_budget_project AS fpdBudgetProject, fpd.fpd_budget_project_id AS fpdBudgetProjectId, fpd.fpd_pf_name AS fpdPfName, fpd.fpd_pf_id AS fpdPfId, fpd.fpd_expend_subject AS fpdExpendSubject, fpd.fpd_expend_subject_id AS fpdExpendSubjectId, fpd.fpd_payee_name AS fpdPayeeName, fpd.fpd_payee_account AS fpdPayeeAccount, fpd.fpd_payee_opening_bank AS fpdPayeeOpeningBank, fpd.fpd_payee_opening_bank_num AS fpdPayeeOpeningBankNum, fpd.fpd_dept_pay_economics_classify_num AS fpdDeptPayEconomicsClassifyNum, fpd.fpd_dept_pay_economics_classify_name AS fpdDeptPayEconomicsClassifyName, sum( fpd.fpd_applied_amount ) AS fpdAppliedAmount, fpd.fpd_capital_use AS fpdCapitalUse, fpd.fpd_postscript AS fpdPostscript, fpd.fpd_budget_item_name AS fpdBudgetItemName, fpd.fpd_budget_item_number AS fpdBudgetItemNumber, fpd.fpd_dr_name AS fpdDrName, dbec.dbec_parent_num AS dbecParentNum FROM financial_payment_details fpd LEFT JOIN dept_budget_economy_class dbec ON fpd.fpd_dept_pay_economics_classify_num = dbec.dbec_num WHERE fpd.fpd_is_tax = "1" GROUP BY fpd_pay_num ) t1

2023-04-20 上传

将下面这条sql语句简短一些:SELECT * FROM ( SELECT fpd.fpd_id AS fpdId, fpd.fpd_budget_project AS fpdBudgetProject, fpd.fpd_budget_project_id AS fpdBudgetProjectId, fpd.fpd_pf_name AS fpdPfName, fpd.fpd_pf_id AS fpdPfId, fpd.fpd_expend_subject AS fpdExpendSubject, fpd.fpd_expend_subject_id AS fpdExpendSubjectId, fpd.fpd_payee_name AS fpdPayeeName, fpd.fpd_payee_account AS fpdPayeeAccount, fpd.fpd_payee_opening_bank AS fpdPayeeOpeningBank, fpd.fpd_payee_opening_bank_num AS fpdPayeeOpeningBankNum, fpd.fpd_dept_pay_economics_classify_num AS fpdDeptPayEconomicsClassifyNum, fpd.fpd_dept_pay_economics_classify_name AS fpdDeptPayEconomicsClassifyName, fpd.fpd_applied_amount AS fpdAppliedAmount, fpd.fpd_capital_use AS fpdCapitalUse, fpd.fpd_postscript AS fpdPostscript, fpd.fpd_budget_item_name AS fpdBudgetItemName, fpd.fpd_budget_item_number AS fpdBudgetItemNumber, fpd.fpd_dr_name AS fpdDrName, dbec.dbec_parent_num AS dbecParentNum FROM financial_payment_details fpd LEFT JOIN dept_budget_economy_class dbec ON fpd.fpd_dept_pay_economics_classify_num = dbec.dbec_num WHERE fpd.fpd_is_tax = "0" UNION ALL SELECT fpd.fpd_id AS fpdId, fpd.fpd_budget_project AS fpdBudgetProject, fpd.fpd_budget_project_id AS fpdBudgetProjectId, fpd.fpd_pf_name AS fpdPfName, fpd.fpd_pf_id AS fpdPfId, fpd.fpd_expend_subject AS fpdExpendSubject, fpd.fpd_expend_subject_id AS fpdExpendSubjectId, fpd.fpd_payee_name AS fpdPayeeName, fpd.fpd_payee_account AS fpdPayeeAccount, fpd.fpd_payee_opening_bank AS fpdPayeeOpeningBank, fpd.fpd_payee_opening_bank_num AS fpdPayeeOpeningBankNum, fpd.fpd_dept_pay_economics_classify_num AS fpdDeptPayEconomicsClassifyNum, fpd.fpd_dept_pay_economics_classify_name AS fpdDeptPayEconomicsClassifyName, sum( fpd.fpd_applied_amount ) AS fpdAppliedAmount, fpd.fpd_capital_use AS fpdCapitalUse, fpd.fpd_postscript AS fpdPostscript, fpd.fpd_budget_item_name AS fpdBudgetItemName, fpd.fpd_budget_item_number AS fpdBudgetItemNumber, fpd.fpd_dr_name AS fpdDrName, dbec.dbec_parent_num AS dbecParentNum FROM financial_payment_details fpd LEFT JOIN dept_budget_economy_class dbec ON fpd.fpd_dept_pay_economics_classify_num = dbec.dbec_num WHERE fpd.fpd_is_tax = "1" GROUP BY fpd_pay_num ) t1

2023-04-20 上传