Location:
Search - dEM
Search list
Description: 关于DTM、DEM的详细介绍，对开发地形很是有用的-On the DTM, DEM detailed introduction on the development of the terrain is very useful
Platform: |
Size: 90112 |
Author: 于燕 |
Hits:
Description: 四叉树递归
此种模型绘制类似米字形的网格。由于整个过程递归调用绘图函数，所以可以根据误差判断绘制DEM的精细程度，从而绘制出不同精细程度的DEM，为解决漫游中数据量较大而引起的画面不流畅现象提供了模型基础。 本文并没有对LOD作研究，只是给出了四叉树的建立和遍历绘图的方法。
-Recursive quadtree rendering such models similar character-meter grid. Recursive calls as a result of the whole process of mapping function, so it can be judged according to the error map of the fine DEM, thus rendering a different degree of precision DEM, for the settlement of roaming in the amount of data arising from the larger screen does not provide a model of fluid based on the phenomenon. This article does not LOD for research, but given quadtree traversal of the establishment and mapping method.
Platform: |
Size: 1024 |
Author: Louis |
Hits:
Description: 外国人写的摄影测量开源教育代码,用于影像纠正,使用DEM,可用于研究-Written by foreigners photogrammetry education open source code for the image rectification, the use of DEM, can be used to study
Platform: |
Size: 120832 |
Author: jiang heng |
Hits:
Description: 里面包含opengl中加载DEM数据的方法和贴纹理方法等的源码-Which contains opengl loaded DEM data and paste the source texture methods
Platform: |
Size: 2917376 |
Author: xiaoC |
Hits:
Description: DEM数据的重采样和投影，支持ENVI里所有投影方式，可以批处理。-DEM data resampling and projection, in support of all ENVI projection mode, you can batch.
Platform: |
Size: 5120 |
Author: lijiyuan |
Hits:
Description: DEM的规则格网存储结构是一个二维点阵,由于其高度与宽度已知,因此可以用一个一维数组p[n]进行管理，设原点的平面位置为(0, 0),DEM的长度与宽度分别为s和t,则任意一点(i,j)的高程值为p[i×t+j]。规则格网的这种简明结构,事实上已经对DEM数据进行了很好的组织,因此将格网数据读入内存，而无需使用其它任何结构进行管理,直接对读入的DEM数据块进行处理，生成格网面。
利用bitmap将DEM位图中的数据读入到程序数组中，其中规则网格将区域空间切分为规则的格网单元, 每个格网单元对应一个数值, 在计算机实现中则是一个二维数组, 每个格网单元或数组的一个元素, 对应一个高程值。很自然地, 我们可以把数字位图与规则网格模型联系起来, 把位图的灰度值与高程值对应起来，添加纹理表面。
-err
Platform: |
Size: 332800 |
Author: 杨冬 |
Hits:
Description: 介绍了读写数字高程模型(DEM)数据的小程序,希望做三维的初学者可以-Introduced reading and writing digital elevation model (DEM) data, small procedures, they hope to do three-dimensional beginners can
Platform: |
Size: 362496 |
Author: yuan |
Hits:
Description: 介绍数字高程模型，是GIS程序开发者不可少的电子书-Introduce digital elevation models, GIS developers is essential for e-books
Platform: |
Size: 6771712 |
Author: 李岩 |
Hits:
Description: 把dem文件转换为dted格式文件的程序，3维地理信息系统不可缺少的转换程序工具-Dem files into the format dted procedures, 3-dimensional GIS an indispensable tool for the conversion process
Platform: |
Size: 2062336 |
Author: motor |
Hits:
Description: 湿地DEM生成的三维,支持dem动态载入，场景缩放，场景漫游-Wetlands DEM generated three-dimensional, dynamic loading support dem, scene zoom, scene roaming
Platform: |
Size: 24612864 |
Author: 孙两个 |
Hits:
Description: 通过C#+GLOBMAP开发的浏览tif与DEM格式的以及shape 文件的实例子-Through the C#+ GLOBMAP browser tif with the development of DEM as well as the shape file format examples of sub-
Platform: |
Size: 20480 |
Author: 雷天兆 |
Hits:
Description: 一个地形渲染的引擎，能够输入dem数据，生成3D地形-A terrain rendering engine, can be dem input data to generate 3D terrain
Platform: |
Size: 496640 |
Author: jianye |
Hits:
Description: 利用分层设色显示数字高程模型dem，在vc开发环境中-The use of layered colors show the digital elevation model dem, in the development environment vc
Platform: |
Size: 2021376 |
Author: mamg |
Hits:
Description: 对《数字高程模型》，本文件对其进行了详细的说明，相信能对读者起到一定的帮助作用。-Of digital elevation model , this document is its detailed description, I believe that the readers can help play a role.
Platform: |
Size: 6771712 |
Author: 张晓民 |
Hits:
Description: 上传一个实现AM调制解调的源代码-From AM modulation and demodulation of a realization of the source code
Platform: |
Size: 1024 |
Author: 聂立贤 |
Hits:
Description: 一个简单的绘制DEM晕渲图的程序，输入文件为国家标准的.dem文件，输出文件为位图文件-Draw a simple DEM shading procedures, the input file for the national standards. Dem file, output file for the bitmap file
Platform: |
Size: 2314240 |
Author: CuteEric |
Hits:
Description: INSAR的MATLAB工具箱，包含了干涉SAR处理中基线估计、滤波、DEM生成等所有处理过程。-INSAR toolbox of MATLAB, including the treatment of SAR Interferometric baseline estimates, filtering, DEM generation and all other process.
Platform: |
Size: 68608 |
Author: liuliguo |
Hits:
Description: dem vc++ 完整二维、三维等高线的绘制源码-dem vc++ a complete two-dimensional, three-dimensional contour mapping of the source
Platform: |
Size: 2116608 |
Author: 李叶 |
Hits:
Description: 不规则三角网的快速建立及其动态更新.针对线路勘测设计的特点,介绍了一种适合于线路CAD应用的快速建立和在线动态更新不规则三网(TIN)的方法-Triangulated irregular network set up the Express and its dynamic update
Platform: |
Size: 385024 |
Author: 朱丽玲 |
Hits:
Description: 分治插入整合算法，分治算法由于其数据的分块处理，大大地减少了每次数据遍历的搜索量-Insert sub-rule integration algorithm, sub-rule algorithm because of its data sub-block processing, greatly reducing the data for each traversal of the search volume
Platform: |
Size: 244736 |
Author: 朱丽玲 |
Hits:
«
1
2
3
4
56
7
8
9
10
...
35
»