asebogram.blogg.se - Digital terrain model graphics

DIGITAL TERRAIN MODEL GRAPHICS PDF
DIGITAL TERRAIN MODEL GRAPHICS SOFTWARE
DIGITAL TERRAIN MODEL GRAPHICS CODE

Most of the data providers ( USGS, ERSDAC, CGIAR, Spot Image) use the term DEM as a generic term for DSMs and DTMs. Other definitions equalise the terms DEM and DTM, equalise the terms DEM and DSM, ĭefine the DEM as a subset of the DTM, which also represents other morphological elements, or define a DEM as a rectangular grid and a DTM as a three-dimensional model ( TIN). ĭEM is often used as a generic term for DSMs and DTMs, only representing height information without any further definition about the surface.

In contrast to a DSM, the digital terrain model (DTM) represents the bare ground surface without any objects like plants and buildings (see the figure on the right).

In most cases the term digital surface model represents the earth's surface and includes all objects on it. There is no universal usage of the terms digital elevation model (DEM), digital terrain model (DTM) and digital surface model (DSM) in scientific literature. Digital Terrain Models represent the bare ground. Mensura Genius also calculates the contours in 3D, which are displayed in the 3D view.Surfaces represented by a Digital Surface Model include buildings and other objects. Parameters include the equidistance choice, line type, thickness of the main and secondary contours. The contour lines are created on the DTM automatically. Mensura genius calculates the volumes between the two terrain surfaces and automatically draws sections of different DTM. Multi DTM manager facilitate the monitoring of the cut volumes everyday. are automatically modeled and drawn in longitudinal sections and cross-sections.

Boring pits are inputted directly in the DTM, the layers silt, rock, clay, etc. Mensura Genius creates and processes geological surveys. Mensura Genius manages topsoil stripping with general value applied to all DTM but also stripping zones which refine the project and the excavation volumes. Mensura Genius facilitates drawing of longitudinal sections and cross sections.

Hydraulic calculation of the 3D flow networks (DTM drop path).

Cartography of the slope arrows indicating the flow direction.

Mensura GENIUS offers the relief analysis and control tools to check the coherence of the terrain surface model. Mensura allows you to triangulate complex surfaces with the possibility of delimiter, breaklines, inner surfaces and exclusion zones.Īll modifications of the perimeter or triangulation are made directly on the screen. When you include slope changing lines (breaklines) the triangulation is immediately refreshed. The modeling of the terrain surface obtained via DELAUNAY triangulation instantly gives you the elevation for all DTM points. To check the coherence of the provided data, you have several monitoring tools.

DIGITAL TERRAIN MODEL GRAPHICS CODE

Surface modelling / Colour code display by trianglesĭTM takes into consideration the existing data (roadway alignment, road border, ditch, slope) in order to automatically generate the triangulation. Land surveying data (import ASCII files, retrieve field notebook data).Graphic Dxf/DWG files (use attribute blocks, 2D and 3D points segments and polylines).

DIGITAL TERRAIN MODEL GRAPHICS PDF

Import PDF files or images (Tiff Jpeg, Ecw).

In order to model the data, you can employ different methods : The Terrain Surface (DTM) is the basis of your infrastructure project. As it has been designed to model point files created by an airborne laser, you can model and manipulate the files containing more than 500000 pointsĭata acquisition and consideration of existing terrain

DIGITAL TERRAIN MODEL GRAPHICS SOFTWARE

Being a reference for different modules and calculations the Digital Terrain Model (DTM) of Mensura Genius software is at the same time very easy to use and extremely powerful.