| Line 17: | Line 17: | ||
{| | {| | ||
|- | |- | ||
|[[Image:samp_solids.png|thumb|left| | |[[Image:samp_solids.png|thumb|left|365 px|Solids created from the horizons method]] | ||
|[[Image:samp_xsect.gif|thumb|none|325 px|Cross sections from the solid created via the horizons method]] | |[[Image:samp_xsect.gif|thumb|none|325 px|Cross sections from the solid created via the horizons method]] | ||
|} | |} | ||
The following steps illustrate how to use the Horizons method to create solid stratigraphy.
When the Horizon command is executed the horizons specified on the borehole contacts or TIN nodes are converted to a set of scatter points with one dataset for each horizon. The scatter points are then used to interpolate a surface for each horizon. Starting with the lowest numbered horizon, the surface is extruded down to create a solid. The surface corresponding to the next horizon is then extruded down to fill in the space between that surface and the previous surface. This process is repeated for each surface. At each step, a solid is created for the current horizon and all previously defined solids are subtracted from that solid, resulting in an incremental buildup of the stratigraphy from the bottom to the top. The entire process is simpler, more intuitive, and more robust than the old set operations approach.
File:Samp xsect.gif Cross sections from the solid created via the horizons method |
| GMS – Groundwater Modeling System | ||
|---|---|---|
| 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 | |
| Aquaveo | ||
