《数字测图》课件-5.2.3数字测图技术方案编制

数字测图DigitalMappingCompileadigitalsurveyingtechnologyplan数字测图技术方案编制技术设计，就是根据测图比例尺、测图面积和测图方法以及用图单位的具体要求，结合测区的自然地理条件和本单位的仪器设备、技术力量及资金等情况，灵活运用测绘学的有关理论和方法，制定在技术上可行、经济上合理的技术方案、作业方法和实施计划，并将其按一定格式编写成技术设计书。Technicaldesignistocompilethetechnicaldesignaccordingtothesurveyingscale,surveyingarea,surveyingmethodandspecificrequirementsofthemapunit,aswellasthenaturalgeographicalconditionsandtheinstrumentsandequipment,technicalstrengthandfinancialsituationoftheunit.Itisaflexibleuseoftherelevanttheoriesandmethodsofsurveyingandmapping,tomakeafeasibleandreasonabletechnicalsolution,workingmethodandimplementationplanintermsoftechnology,economy,andthencompileitintoatechnicaldesignbookinacertainformat.技术设计基本概念BasicConceptsofTechnicalDesign数字测图技术设计规范了整个数字测图过程中的技术环节。各项工作都应在数字测图技术设计的指导下开展。数字测图技术设计是数字测图项目顺利实施的重要一环。Thedigitalsurveyingtechnologydesignstandardizedthetechnicallinksoftheentiredigitalsurveyingprocess.Alltheworkshouldbecarriedoutundertheguidanceofthedigitalsurveyingtechnologydesign.Thedigitalsurveyingtechnologydesignisanimportantlinkforthesmoothimplementationofthedigitalsurveyingproject.编制数字测图技术设计的意义SignificanceofFormulatingtheTechnicalDesignofDigitalMapping编制数字测图技术设计的主要依据MainBasisforFormulatingtheTechnicalDesignofDigitalMapping1上级下达的测量任务书或合同书Themeasurementtaskbookorcontractissuedbythesuperiorauthority.编制数字测图技术设计的主要依据MainBasisforFormulatingtheTechnicalDesignofDigitalMapping2有关技术规范、规程、图式Relevanttechnicalspecifications,regulations,anddiagrams.首先应先考虑整体而后局部，且顾及今后发展；既要满足用户的需求，重视社会效益和经济效益。Firstly,thewholeshouldbeconsideredfirst,andthenthelocal,andthefuturedevelopmentshouldbetakenintoaccount;boththeuser'sneedsandthesocialandeconomicbenefitsshouldbeconsidered.编制技术设计的基本原则BasicPrinciplesofDigitalSurveyingTechnologyDesign要从测区的实际情况出发，考虑作业单位的人员素质和装备情况，选择最佳作业方案。Theworkingconditionsoftheworkunitshouldbeconsideredfromtheactualsituationofthesurveyarea,consideringthepersonnelqualityandequipmentconditions,andthebestworkingschemeshouldbeselected.编制技术设计的基本原则BasicPrinciplesofDigitalSurveyingTechnologyDesign在编制过程中应广泛收集、认真分析及充分利用已有的测绘成果和资料。Inthecompilationprocess,existingmappingachievementsandmaterialsshouldbewidelycollected,carefullyanalyzedandfullyutilized,andnewtechnologies.编制技术设计的基本原则BasicPrinciplesofDigitalSurveyingTechnologyDesign尽量采用新技术、新方法和新工艺，合理选用成图软件。Newmethodsandnewprocessesshouldbeadoptedasmuchaspossible,andthemappingsoftwareshouldberationallyselected.编制技术设计的基本原则BasicPrinciplesofDigitalSurveyingTechnologyDesign当测图面积非常大，需要的工期较长时，可根据用图单位的规划和轻重缓急，将测区划分为几个小区域，分别进行技术设计。Whenthemappingareaisverylargeandtheconstructionperiodislong,thesurveyareacanbedividedintoseveralsmallareasaccordingtotheplanningandpriorityandurgencyofthemapunit,andthetechnicaldesigncanbecarriedoutseparately.编制技术设计的基本原则BasicPrinciplesofDigitalSurveyingTechnologyDesign任务概述Tasksummary技术设计书的主要内容MainContentsofTechnicalDesignBook01概述Summary测区概况Surveyareasummary已有资料利用情况Existingmaterialsutilizationsituation包括作业依据、控制测量方案、数字测图方案、质量控制措施及检查验收方案、工作量统计、作业计划安排和经费预算、应提交的资料、建议与措施等。Includestheworkingbasis,controlmeasurementscheme,digitalsurveyingscheme,qualitycontrolmeasuresandinspectionacceptancescheme,workloadstatistics,workplanarrangementandbudget,documentstobesubmitted,suggestionsandmeasures,etc.02设计方案Designscheme技术设计书的主要内容MainContentsofTechnicalDesignBook技术设计书的主要内容MainContentsofTechnicalDesignBook平面控制测量方案Planarcontrolmeasurementscheme高程控制测量方案Heightcontrolmeasurementscheme控制测量方案Controlmeasurementscheme技术设计书的主要内容MainContentsofTechnicalDesignBook数据采集

Dataacquisition数字测图方案Digitalsurveyingscheme首先说明图根控制测量（包括平面、高程）采用的方法、观测要求、图根成果的精度要求及注意事项等；其次数据采集作业模式的选择；最后再写碎部测量。Thefirstpartdescribesthemethods,observationrequirements,precisionrequirementsandnotesofrootcontrolmeasurement(includingplanarandheight),andthenthechoiceofdataacquisitionworkmode,andfinallythedescriptionoffragmentmeasurement.技术设计书的主要内容MainContentsofTechnicalDesignBook数据采集Dataacquisition数据处理Dataprocessing数字测图方案Digitalsurveyingscheme图形处理Graphicprocessing成果输出Outputofresults技术设计书的主要内容MainContentsofTechnicalDesignBook数据处理Dataprocessing数据处理是数字化成图的主要工序之一，其目的是将用不同方法采集的数据进行转换、分类、计算、编辑，为图形处理提供必要的绘图信息数据文件。Dataprocessingisoneofthemainprocessesofdigitalmapping,itspurposeistoconvert,classify,calculateandeditdatacollectedbydifferentmethods,providingnecessarydrawinginformationdatafilesforgraphicprocessing.技术设计书的主要内容MainContentsofTechnicalDesignBook图形处理Graphicprocessing图形处理是将数据处理成果转换成图形文件。它由软件系统来完成，软件系统应具有图廓整饰、绘制线状符号、绘制面状符号、绘制独立地物符号、绘制等高线、图幅裁剪等功能，其处理成果是图形文件。Graphicprocessingistoconvertdataprocessingresultsintographicfiles.Itiscompletedbysoftwaresystems,whichshouldhavefunctionssuchasmapframedecoration,drawingoflinesymbols,drawingofsurfacesymbols,drawingofindependentlandformsymbols,drawingofcontourlines,mapframecropping,etc.,andtheprocessingresultsaregraphicfiles.技术设计书的主要内容MainContentsofTechnicalDesignBook成果输出Outputofresults成果（地形图）输出就是将图形文件按照选定的分幅与编号方法和图幅大小，利用打印机、绘图仪等输出设备打印出来。所绘地形图的质量要符合规范的要求。Outputofresults(topographicmap)istoprintoutgraphicfilesaccordingtoselectedmethodsofframeandnumberingandsizeofframe,usingprinters,draftingmachines,etc.outputdevices.Thequalityofthedrawntopo