GMS:Rasters
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This contains information about functionality available starting at GMS version 9.0. The content may not apply to other versions. |
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DEMs (digital elevation models), and images that include elevation data such as a geotiff, are referred to as "rasters". Using the third-party softwareGlobal Mapper, GMS supports a large number of DEM formats. DEMs are imported and displayed as images. Thus they are only displayed in plan view.
Importing DEMs
DEMs can be imported by simply opening the file(s) or dragging and dropping the file(s) into the GMS window.
Creating rasters
Rasters can be created from within GMS by interpolating from 2D scatter points. The interpolation options, the raster cell size, and the extents of the raster can all be specified in the Scatter -> Raster dialog.
Interpolating from rasters
Rasters can be interpolated to most other objects, including the z values of feature objects and to MODFLOW layers. The interpolation is done by finding the raster cells that the object's points are in and assigning the points the values from the raster cells.
Conversion from rasters
Rasters can be converted to a 2D grid or 2D scatter points.
Raster display options
The Rasters tab of the Display Options dialog is used to change the way rasters are displayed. The only options currently available are the shader which controls the color ramp, and whether to enable hill shading (shadows). These options are from Global Mapper.
GMS – Groundwater Modeling System | ||
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| Modules: | 2D Grid • 2D Mesh • 2D Scatter Point • 3D Grid • 3D Mesh • 3D Scatter Point • Boreholes • GIS • Map • Solid • TINs • UGrids |  |
| Models: | FEFLOW • FEMWATER • HydroGeoSphere • MODAEM • MODFLOW • MODPATH • mod-PATH3DU • MT3DMS • MT3D-USGS • PEST • PHT3D • RT3D • SEAM3D • SEAWAT • SEEP2D • T-PROGS • ZONEBUDGET | |
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