Multi-level representation of terrain features on a contour map
نویسندگان
چکیده
منابع مشابه
Multi-level representation of terrain features on a contour map
Contour lines are important for quantitatively displaying relief and identifying morphometric features on a map. Contour trees are often used to represent spatial relationships between contours and assist the user in analysing the terrain. However, automatic analysis from the contour tree is still limited as features identified on a map by sets of contours are not only characterised by local re...
متن کاملReconstruction of 3-D Terrain Data from Contour Map
This pqm pments a rasterbased algorithm for reconstruction of 3-D terrain data from contour information appearing on the conventional 2-D map The height of an interior point between two neighboring contam is defined by a linear interpolation formula wt.lose variables are the height of those contours arid distance from the point to the contours. The distance from an interior mint to the contour ...
متن کاملA Multi-resolution Representation for Terrain Morphology
Mesh-based terrain representations provide accurate descriptions of a terrain, but fail in capturing its morphological structure. The morphology of a terrain is defined by its critical points and by the critical lines joining them, which form a so-called surface network. Because of the large size of current terrain data sets, a multi-resolution representation of the terrain morphology is crucia...
متن کاملReal-time Contour Map Reconstruction with 3D Terrain on Modern Graphics Hardware
A new algorithm for reconstructing contour map from raster DEM data is presented. It runs completely within the programmable 3D visualization pipeline in real-time. During the rendering, we first make an elevation gradient map out of original terrain vertex data. Then figure out the final contour lines with image-space processing, and blend the values on the original scene to obtain the final s...
متن کاملthe impact of skopos on syntactic features of the target text
the present study is an experimental case study which investigates the impacts, if any, of skopos on syntactic features of the target text. two test groups each consisting of 10 ma students translated a set of sentences selected from advertising texts in the operative and informative mode. the resulting target texts were then statistically analyzed in terms of the number of words, phrases, si...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: GeoInformatica
سال: 2012
ISSN: 1384-6175,1573-7624
DOI: 10.1007/s10707-012-0153-z