毕业设计设计题目坐标转换参数求取及坐标转换程序设计学生姓名张威指导教师杜继亮专业测绘工程班级测绘12-2班填写日期2016/4/6矿业工程学院I摘要坐标系统是测量工作中定位的基础，坐标系统有多种形式和基准，由于各测量工作目的不同，所选用的坐标基准也会不同，根据不同的工作要求需要将不同的坐标系下的坐标进行相互转换。在这些坐标转换的过程中会用到很多坐标转换模型，但是坐标系转换模型过于复杂手算非常困难。本设计为了方便施工时遇到的坐标转换问题，设计利用VisualBasic6.0编程语言编写程序，用来实现坐标系统之间的转换以及转换参数的求解，例如:大地坐标与空间直角坐标的相互转换、高斯投影正反算、二维坐标转换与四参数计算、三维坐标转换与七参数转换、同参考基准下的坐标换带计算，以及坐标数据的批量处理。关键字：坐标系统，转换模型，坐标转换，程序设计IIAbstractThebaseofcoordinatesysteminsurveyingwork.therearemanyformsandbenchmarksinthecoordinatesystem.However,ingeneralengineering,thecontrolpointandcoordinate.Systemarethesame.SoItisnecessarytotransformthecontrolpoint.coordinateduringtheconstructionprocess.Duetodifferentpurposesofeachmeasurementandtheselected.differentcoordinatereferences,therewillbemanydifferentcoordinatesystems.Coordinatesystemsusedinthemeasurementworkareasfollows:WGS-84WorldGeodeticSystem,ChinaGeodeticCoordinateSystem2000,NationalGeodeticCoordinateSystem1980,Beijingcoordinatesystem1954andLocalCoordinateSystem.Therearespacerectangularcoordinate,geodeticcoordinateandplanecoordinateinthewayofthereferenceinthesamecoordinate.Accordingtotherequirementsofdifferenttasks,weneedtoconvertcoordinatesunderthedifferentcoordinatesystems.Onconditionthatthecoordinatesofthereferencestandardcanbeobtained.thenormalconstructionworkcanbedone.Alotofcoordinatetransformationmodelsareusedintheprocessofthecoordinatetransformation.Butthecoordinatetransformationmodelisverycomplexanddifficult.Nowadaystheconversionformulaissuitableforthecomputerizationwhoselanguageiseasytolearn.SointhedesignImakeuseofVisualBasic6programminglanguagetorealizethetransformationbetweenthecoordinatesystemandtransformationparameters.Keywords:coordinatesystemstransformationmodelcoordinatetransformprogrammingIII目录摘要.........................................................IAbstract.........................................................II第1章绪论......................................................11.1研究背景和意义......................................................................................11.2国内外研究现状......................................................................................11.3研究的主要内容......................................................................................21.4程序设计思路方法..................................................................................2第2章坐标理论和知识............................................32.1地球椭球..................................................................................................32.2基准..........................................................................................................32.3测量常用坐标系......................................................................................42.3.1大地坐标系...................................................................................42.3.2空间直角坐标系...........................................................................42.3.3平面坐标系......................................................
