GMS:Horizons: Difference between revisions
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{{Horizons Links}} | {{Horizons Links}} | ||
The term “horizon” refers to the top of each stratigraphic unit that will be represented in a corresponding Solid, HUF unit or 3D Mesh Layer. Horizons are numbered consecutively in the order that the strata are “deposited” (from the bottom up). Horizons can be assigned to [[GMS:Boreholes|Boreholes]], [[GMS:TIN Module|TINs]], and [[GMS:Coverages|Coverages]]. Beginning with version 9.0, [[GMS:Raster Catalog|raster catalogs]] can also be used to define horizons. | The term “horizon” refers to the top of each stratigraphic unit that will be represented in a corresponding Solid, HUF unit, or 3D Mesh Layer. Horizons are numbered consecutively in the order that the strata are “deposited” (from the bottom up). Horizons can be assigned to [[GMS:Boreholes|Boreholes]], [[GMS:TIN Module|TINs]], and [[GMS:Coverages|Coverages]]. Beginning with version 9.0, [[GMS:Raster Catalog|raster catalogs]] can also be used to define horizons. | ||
Once horizons have been assigned to boreholes and/or | Once horizons have been assigned to boreholes, TINs, and/or [[GMS:Rasters|Rasters]], the [[GMS:Horizons Wizard|Horizons Wizard]] can be used to create solids, 3D mesh, or HUF data. | ||
== Assigning Horizons to Boreholes== | == Assigning Horizons to Boreholes== | ||
Horizons are defined at borehole contacts. Each contact that the user wishes to include in the construction of the solid must have a horizon ID. If the user wishes to ignore a contact, this can be done by | On boreholes, Horizons are defined at borehole contacts. Each contact that the user wishes to include in the construction of the solid must have a non-zero horizon ID. If the user wishes to ignore a contact, this can be done by leaving the horizon ID set to zero. Horizons are numbered in the order that the strata are “deposited” (from the bottom up). Gaps can exist in the horizon numbering. For example, horizons can be assigned using 1, 2, 3, ect..., or the user could assign horizons using 10, 20, 30, etc... Using larger numbers with gaps can be useful if more horizons are added at a later time. | ||
=== Automatic Assignment === | === Automatic Assignment === | ||
To have GMS automatically assign horizon IDs to boreholes, you can use the '''''Boreholes | Auto-Assign Horizons''''' menu command. Depending on the number and complexity of your boreholes, this command | To have GMS automatically assign horizon IDs to boreholes, you can use the '''''Boreholes | Auto-Assign Horizons''''' menu command. Depending on the number and complexity of your boreholes, this command can take a considerable amount of time. | ||
=== Manual Assignment === | === Manual Assignment === | ||
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== Assigning Horizons to TINs == | == Assigning Horizons to TINs == | ||
A TIN Horizon is assigned in the TIN properties dialog. This dialog can be accessed by right-clicking on a TIN in the [[GMS:The GMS Screen|Project Explorer]] and selecting the properties command. Each TIN can be assigned one Horizon ID. | A TIN Horizon is assigned in the TIN properties dialog. This dialog can be accessed by right-clicking on a TIN in the [[GMS:The GMS Screen|Project Explorer]] and selecting the properties command. Each TIN can be assigned one Horizon ID. Each TIN that the user wishes to include in the horizons algorithm must have a horizon ID. If the user wishes to ignore a TIN, this can be done by setting the horizon ID to zero. | ||
[[Image:Hor_Asg_TIN.gif|none|frame|Horizons assigned to contacts in TIN Properties Dialog]] | [[Image:Hor_Asg_TIN.gif|none|frame|Horizons assigned to contacts in TIN Properties Dialog]] | ||
== Assigning Horizons to Rasters == | |||
Raster can also be used to define horizons. See the [[GMS:Raster Catalog|Raster Catalog]] page for more information on using Rasters with horizons. | |||
{{Navbox GMS}} | {{Navbox GMS}} | ||
