Template:Interpolate Priority Rasters: Difference between revisions

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===Interpolate Priority Rasters===
===Interpolate Priority Rasters===
This tool interpolates multiple rasters to a UGrid with priority. Each source is added to the list in priority order.  If a value is not obtained when interpolating from the highest priority source, the tool looks for a value in the next source until either a value is found or all sources are exhausted. The tool has the following options:
<!--====Tool description====-->
*''Grid'' &ndash; This option allows you to select the geometry that will receive the interpolated rasters.
The ''Interpolate Priority Rasters'' tool creates a new dataset for a selected geometry (UGrid/Mesh2D/Scatter Set) by interpolating from multiple rasters according to a user specified priority. Each source is added to the list in priority order.  If a value is not obtained when interpolating from the highest priority source, the tool looks for a value in the next source until either a value is found or all sources are exhausted.
*''Default value option'' &ndash; This option will allow you to select the default value. Depending on the selection, the options may be added to the dialog.
 
It should be noted that rasters from different sources may have errors or differences from one another for a variety of  reasons. Principal causes of incompatibilities between rasters include the changes between the times when each source was gathered, differences in survey methods, and slight adjustments to datums. Large raster differences can result in discontinuities in the surface. These discontinuities can have ramifications on the hydraulic results for simulations of flow over the combined surface.
 
Observation profiles can be extracted from the surfaces to visualize the differences. If significant differences exist, the [[Template:Blend Raster to Edges| Blend Raster to Edges]] tool and the [[Template:Clip Raster from Elevation|Clip Raster from Elevations]] tool can be used to correct them.
 
It should be noted that the output dataset must be mapped to be the ''Elevation'' of the target geometry if that is desired. It is not mapped automatically.
 
====Input parameters====
*''Grid'' &ndash; Allows selecting the geometry that will receive the interpolated raster values.
*''Default dataset'' &ndash; Allows selecting a dataset in the project to use as the default values for interpolation.
<!--This option will allow you to select the default value for interpolation. Depending on the selection, options may be added to the dialog.
**"Constant" &ndash; The default value option is Constant. This selection adds the ''Default constant value'' option.
**"Constant" &ndash; The default value option is Constant. This selection adds the ''Default constant value'' option.
***''Default constant value'' &ndash; This option allows you to set a constant value which will be default.
***''Default constant value'' &ndash; This option allows you to set a constant value which will be the default.
**"Dataset" &ndash; The default value option is Dataset. This selection adds the ''Default dataset'' option.
**"Dataset" &ndash; The default value option is Dataset. This selection adds the ''Default dataset'' option.
***''Default dataset'' &ndash; This option allows you to select which dataset will be default.
***''Default dataset'' &ndash; This option allows you to select which dataset will be the default.
**"Raster data" &ndash; The default value option is Raster data. There will be no extra options for this selection.
**"Raster data" &ndash; The default value option is Raster data. There will be no extra options for this selection.-->
*''Output data set name'' &ndash; Allows setting the name of the new interpolated raster.
*''Resample algorithm'' &ndash; Select the method that will be used for interpolation.
**"blinear" &ndash; Select to use the [[SMS:Linear Interpolation|linear interpolation]] method.
**"nearest_neighbor" &ndash; Select to use the [[SMS:Natural Neighbor Interpolation|natural neighbor interpolation]] method.
*''Raster 1 (highest priority)'' &ndash; Select the raster that will be given highest priority during the interpolation process.
*''Raster 1 (highest priority)'' &ndash; Select the raster that will be given highest priority during the interpolation process.
*''Raster 2'' &ndash; Select the raster that will be given the next highest priority during the interpolation process.
*''Raster 2'' &ndash; Select the raster that will be given the next highest priority during the interpolation process.
*''Raster n'' &ndash; Additional rasters may be selected and given priority in the order they are selected.
*''Raster n'' &ndash; Additional rasters may be selected and given priority in the order they are selected.
====Output parameters====
*''Output dataset name'' &ndash; Allows setting the name of the new dataset on the specified mesh, UGrid, or scatter set.
====Current Location in toolbox====
Rasters/Interpolate Priority Rasters
====Related Tools====
* [[Template:Blend Raster to Edges| Blend Raster to Edges]]
* [[Template:Clip Raster from Elevation|Clip Raster from Elevations]]
* [[Template:Merge Elevation Rasters|Merge Elevation Rasters]]
{{-}}
{{-}}
<noinclude>[[Category:Tools]]</noinclude>
<noinclude>[[Category:Toolbox Rasters]]</noinclude>

Latest revision as of 19:06, 26 October 2023


Interpolate Priority Rasters

The Interpolate Priority Rasters tool creates a new dataset for a selected geometry (UGrid/Mesh2D/Scatter Set) by interpolating from multiple rasters according to a user specified priority. Each source is added to the list in priority order. If a value is not obtained when interpolating from the highest priority source, the tool looks for a value in the next source until either a value is found or all sources are exhausted.

It should be noted that rasters from different sources may have errors or differences from one another for a variety of reasons. Principal causes of incompatibilities between rasters include the changes between the times when each source was gathered, differences in survey methods, and slight adjustments to datums. Large raster differences can result in discontinuities in the surface. These discontinuities can have ramifications on the hydraulic results for simulations of flow over the combined surface.

Observation profiles can be extracted from the surfaces to visualize the differences. If significant differences exist, the Blend Raster to Edges tool and the Clip Raster from Elevations tool can be used to correct them.

It should be noted that the output dataset must be mapped to be the Elevation of the target geometry if that is desired. It is not mapped automatically.

Input parameters

  • Grid – Allows selecting the geometry that will receive the interpolated raster values.
  • Default dataset – Allows selecting a dataset in the project to use as the default values for interpolation.
  • Resample algorithm – Select the method that will be used for interpolation.
  • Raster 1 (highest priority) – Select the raster that will be given highest priority during the interpolation process.
  • Raster 2 – Select the raster that will be given the next highest priority during the interpolation process.
  • Raster n – Additional rasters may be selected and given priority in the order they are selected.

Output parameters

  • Output dataset name – Allows setting the name of the new dataset on the specified mesh, UGrid, or scatter set.

Current Location in toolbox

Rasters/Interpolate Priority Rasters

Related Tools


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