Some relative key techniques including the design of 3D data model, database management based on Oracle, the fusion between CAD data and GIS data, sunlight analysis and so on are emphasized.
对涉及到的关键技术包括三维数据模型的实现、二维数据的嵌入与操作、日照分析关键技术等都进行了详尽的介绍。
The production of this paper is what is targeted initially: 3D GIS data model and data structure of water conservancy.
本文研究的主要成果是水利工程3DGIS数据模型与数据结构。
A method is presented to implement real-time 3d road animation coupled with road design data and digital terrain model (DTM).
研究了一种用数字地面模型和公路设计数据实现实时三维动画的方法。
Three-dimensional data model of geology in mine is the foundation of mining 3D GIS, and also the keystone and difficulty in the studies of GIS.
矿山地质三维数据模型是实现矿山3DGIS的基础，也是矿山3D GIS研究的重点和难点。
The fourth chapter tells how to build 3D solid model for hull structure applying the oriented object technology, furthermore, the corresponding data structures are presented.
第四章介绍如何利用面向对象的方法建立船舶结构的三维实体模型，同时给出相关的数据结构；
This paper took discal cam as an example to bring forward a method of using computer program to get 3D geometric data of planar part and make its model in reverse.
以盘形凸轮为例，提出一种用计算机编程实现平面零件实物三维几何数据获取以及模型反求的方法。
However, there are many problems to be solved with it on the acquisition of 3d data, the accuracy of model representation, the complexity and the robustness of algorithms.
这类方法在三维数据获取设备的易用性、模型表示的准确性、算法复杂度及鲁棒性等方面还存在不少问题和矛盾。
This paper presents a new scale-up technique for the grid data volume of a 3D geological model.
本文介绍一种合并三维地质模型网格数据体的新方法。
The 3d model of rough blade was founded by measured data, CNC functions were defined by correlation software.
由测量数据建立叶片毛坯三维模型，用相关软件定义机床CNC功能。
Interpreted and determined mineral body underground according to the geological sections and data of mine to set up 3d visual model of mineral body.
结合矿山地质剖面图及相关地质资料，对矿体进行地质解译并圈定矿体，形成了矿体的三维可视化模型。
The real time drilling analysis model includes the data quality model, real time model, data flow, computer basic facilities and 3D visualization.
实时钻井分析模型包括数据质量模型、实时模型、数据流和计算机基础设施、三维可视化等。
This paper presented a novel method for building dynamic model of real human body from 3d scanned data.
提出一种由三维人体扫描数据建立人体动态模型的新方法。
Based on the measured ground stress data, a 3d non-linear finite element back analysis numerical model for ground stress is set up and the fault and fissure concentrated zone is simulated.
结合实测地应力资料，建立了三维非线性有限元地应力反演分析数值模型，模拟了断层及裂隙密集带。
A hybrid 3d spatial data model based on multi-DEMs and quasi tri-prism volume (QTPV) is proposed.
提出一种基于多层dem与似三棱柱体元(QTPV)的混合三维数据模型。
The main content includes the design of original data collecting system, Image preprocessing, selection and algorithm of filtering method, points cloud creating, reconstruction of 3d CAD model.
主要研究内容包括：数据采集系统设计、图像预处理、滤波方法的选择及其算法、点云生成、三维CAD模型重构。
The core is that 3d tunnel model is constructed by loading section on basis of 2d tunnel line, which are according to data of tunnel surveying.
该方法的核心是以巷道测量点数据为基础，通过在二维巷道线上加载断面的方法来自动构建三维巷道模型。
According as measurement and their data processing technique, accomplished some guiding device's 3d building model and building model of Investment-casting press mould.
依据测量及其数据处理技术，完成了某导向器零件样件的3d建模及其精铸蜡型建模。
This function makes sort management on the platform come true. Moreover, according to the 3d simulation, it creates relevant data model for road, bridge, overpass, tunnel and other targets.
交通基础设施管理功能，能够实现应用平台上交通设施分类管理，并且通过三维仿真将道路、桥梁、高架、天桥地道、大型桥隧等不同的管理对象建立了相应的数据模型。
The 3D-Visualization key techniques of groundwater movement are the three dimensions data model construction, mesh data automatic creation and three dimensions data visualization integration.
地下水运动三维可视化的关键技术是对三维数据模型构造、网格数据的自动生成以及三维数据可视化集成。
So the construction, organization and management of 3d model data is a critical issue to be solved urgently in virtual geographical environment system.
因此虚拟地理场景中三维模型数据的构建、组织与管理是目前虚拟地理环境建设亟需解决的核心问题之一。
The model data can be used directly for numerically controlled machine tools with 3d processing.
生成的模型数据可以直接导入数控机床进行三维加工。
After the 3d model of reservoir imported into Google Earth, the animation of dam break and flood discharging is made according to the data and information of dam break.
将水库的三维模型导入虚拟地球，根据大坝溃决数据信息制作了大坝溃决以及洪水演进的模拟动画。
The application proves the method raised in this paper could build up the 3d ore body surface model which can meet the reality according to the exploration data in mining area.
应用研究表明：运用本文方法，根据矿区勘探数据，能够建立起符合实际的三维矿体表面模型。
By direct processing of the 2d color images captured by color sensors, the color edge of 3d color data is extracted, and finally, the 3d color digitalization model is constructed.
并采用直接处理彩色传感器获取的二维彩色图像实现三维彩色数据颜色边界提取方案，得到三维彩色数字化模型。
Data collected using the new process can also be reverse engineered into a "smart" dimension-driven 3d CAD model.
使用新流程采集到的数据也可以逆向成为“智能”尺寸驱动的3dCAD模型。
And this model should also can get the real-time 3d temperature data of furnace, in order to realize viewable task, this temperature data can be displayed by different color.
并且该模型需要能够获取加热钢坯的实时三维温度数据，为实现可视化要求，其温度数据可以加热钢坯的不同颜色来直观地显示。
Three-dimensional data in Rapid Prototyping includes 3d CAD model of object, 3d data cloud of surface of object measured by instrument, STL file and slice of 3d model.
快速成型中的三维数据包括物体的三维CAD模型、通过三维数字化测量仪器测得的物体表面的三维数据点云、STL文件及三维模型的切片。
Three-dimensional data in Rapid Prototyping includes 3d CAD model of object, 3d data cloud of surface of object measured by instrument, STL file and slice of 3d model.
快速成型中的三维数据包括物体的三维CAD模型、通过三维数字化测量仪器测得的物体表面的三维数据点云、STL文件及三维模型的切片。
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