共查询到19条相似文献，搜索用时 109 毫秒
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为了解决地理信息中的图形信息存在图幅问图元的接边问题,利用C#语言调用ObjectARX托管封装类进行编程,建立AutoCAD接边命令,在AutoCAD环境下调用接边命令实现自动接边,提高数字化成图的效率和数字化地图的精度。 相似文献
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本文分析了Polyline文件结构,并介绍了一种利用ActiveX技术在AutoCAD文件中进行等高线接边的快捷方法.并经过作者实践验1证,此方法精确有效. 相似文献
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基于AutoCAD的等高线自动绘制程序设计 总被引：7，自引：0，他引：7
采用VBA在AutoCAD环境下进行等高线自动绘制程序开发。以Delaunay三角网为基础,利用等值点的插值、等高线的光滑处理等,开发出基于AutoCAD环境下的等高线图自动生成程序。为VBA基于AutoCAD的二次开发应用和研究提供有益的参考。 相似文献
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AutoCAD脚本文件编写简单,可将不同的命令组合起来并按照一定的顺序连续地执行,可用于对分幅地形图数据的批量处理。本文利用程序开发了脚本文件自动生成程序,较大地提高了图形编辑处理的效率。 相似文献
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AutoCAD环境下数字高程模型的建立和等高线的自动绘制 总被引：7，自引：0，他引：7
提出一种利用离散高程数据在AutoCAD下进行DEM(数字高程模型)的建立和等高线自动追踪的方法，并实现了三角网区域边界方便有效的确定和等高线与地面模型的3维显示。 相似文献
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利用AutoCAD与Surfer软件相结合绘制等高线 总被引：10，自引：0，他引：10
目前，国内利用AutoCAD进行数据采集，图形管理非常普及，其中有相当一部分在CAD上开发的数据采集软件没有DTM内容，本文试用在AutoCAD中集成Surfer OLE Automation来解决诸如等高线的绘制、土方量的计算等问题。 相似文献
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Multigen Creator具有强大的地物建模功能,但不同领域的建模仍缺乏统一的方法,应结合领域特点与应用需求进行具体方法设计。本文以某露天采石场的3维建模与可视化为例,探讨了基于等高线建立3维地面模型实现可视化的方法,介绍了其在某采石场的应用,模拟开采后的整个生态地貌,为政府决策以及绿色开采提供了有力的技术支持。 相似文献
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基于嵌入式GIS的管线外业调查系统的开发 总被引：2，自引：1，他引：1
为了改变传统的地下管线外业调查流程,将探查和测量合为一步,实现数据采集的数字化,降低管线外业调查的复杂度,本文使用Arcpad软件的二次开发工具ArcPad Application Builder开发了基于嵌入式GIS的管线外业调查系统。文章在系统分析设计的基础上重点阐述了系统功能的实现,通过内置功能的定制和VBScript编程实现自定义功能的方法开发了系统的各个功能。在应用实例的分析中使用上海外高桥区域管线数据进行了验证,结果系统运行稳定,界面显示清晰,较好地满足了PDA环境下地下管线外业调查的需求。 相似文献
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作为CAD二次开发工具中比较易学的编程工具,VBA和VLISP各有优点。VLSIP善于直接使用AutoCAD的命令,而VBA用来开发对话框显得简单得多。文中介绍将它们结合起来并成功开发出一个在CAD电子图上拾取坐标生成两种不同格式的测量放线文件程序的简单实例,提出在进行CAD二次开发的过程中,发挥VBA与VLISP各自的优点,通过"中介"CAD系统变量来传递数据信息的方法,把两种程序结合起来开发CAD应用程序。 相似文献
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The capability of human-computer interaction reflects the intelligent degree of mobile navigation system. The navigation data and functions of mobile navigation system are divided into system commands and non-system commands in this paper. And then a group of speech commands are abstracted. This paper applies speech recognition technology to intelligent mobile navigation system to process speech commands and does some deep research on the integration of speech recognition technology with mobile navigation system. The navigation operation can be performed by speech commands, which makes human-computer interaction easy during navigation. Speech command interface of navigation system is implemented by Dutty ++ Software, which is based on speech recognition system-Via Voice of IBM. Through navigation experiments, navigation can be done almost without keyboard, which proved that human-computer interaction is very convenient by speech commands and the reliability is also higher. 相似文献
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The capability of humancomputer interaction reflects the intelligent degree of mobile navigation system.The navigation data and functions of mobile navigation system are divided into system commands and non-system commands in this paper,And then a group of speech commands are abstracted.This paper applies speech recognition technology to intelligent mobile navigation system to process speech commands and does some deep research on the integration of speech recognition technology with mobile navigation system.The navigation operation can be performed by speech commands,which makes humancomputer interaction easy during navigation.Speech command interface of navigation system is implemented by Dutty Software,which is based on speech recognition system-Via Voice of IBM.Through navigation experiments,navigation can be done almost without keyboard,which proved that human-computer interaction is very convenient by speech commands and the reliability is also higher. 相似文献
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介绍了国家测绘局编制的《测绘生产成本费用定额》与湖北省财政厅编制的“财政预算科目”之间的差异。通过两者的比较,阐述了如何使项目预算文本和日常业务处理规范化。这将有益于测绘项目的立项申报及管理。 相似文献
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This survey article describes previous research addressing text‐based document geocoding, i.e. the task of predicting the geospatial coordinates of latitude and longitude, that best correspond to an entire document, based on its textual contents. We describe (1) early document geocoding systems that use heuristics over place names mentioned in the text (e.g. names of cities and states), (2) probabilistic language modeling approaches, where generative models are built for different regions in the world (usually considering a discretization based on a rectangular grid) from the words occurring in a set of georeferenced training documents, which are then used to predict per‐region probabilities for previously unseen test documents, (3) combinations of different models and heuristics, including clustering procedures, feature selection approaches, and/or language models built from different sources, and (4) recent approaches based on discriminative classification models. 相似文献
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GIS and Intelligent Agents for Multiobjective Natural Resource Allocation: A Reinforcement Learning Approach 总被引：1，自引：0，他引：1
An important component of natural resource management is determining how to allocate resources within a landscape to different stakeholders in a manner that satisfies multiple objectives. Developing decision making tools for assisting natural resource allocation is a challenging endeavor as stakeholders' objectives typically exist at varying spatial scales, their actions are defined by the spatial constraints in which they operate, and the spatial distribution of resources can be altered due to system disturbances. The nature of such challenges suggests the need for a geographic approach that can investigate these spatial complexities in order to generate a suitable set of solutions. The objective of this study is to develop and evaluate an Intelligent Agent Model for multiobjective natural resource allocation. The model integrates agent-based modeling in a GIS environment with reinforcement learning – a heuristic method for generating, evaluating, and improving multiobjective decision making solutions. The model is implemented by simulating a forest management scenario in which agents that represent forest companies learn how to harvest trees in a manner that maximizes economic return while minimizing the adverse ecological impact to the surrounding landscape. In addition, the model simulates forest disturbances of varying frequencies and intensities to determine how disturbance events affect the decision-making ability of agents. The model is validated to demonstrate that it can provide practical solutions to natural resource decision making. 相似文献
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介绍了TEQC及其辅助软件QCVIEW 32的功能以及在DOS系统下的操作命令,并运用这两种软件对试验数据进行了GPS多路径误差分析,得出了影响多路径误差的部分因素,试验证明,TEQC可以方便地用于多路径误差分析,并能取得良好的效果。 相似文献