Natural Neighbor, Spline, Spline with Barriers
Natural Neighbor
How to use Natural Neighbor Tool in ArcToolbox ArcMap ArcGIS ??
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| Natural Neighbor |
Natural Neighbor Tool, Raster Interpolation Toolset, 3D Analyst Toolbox
Natural Neighbor
Interpolates a raster
surface from points using a natural neighbor technique.
1. Input point features
The input point features
containing the z-values to be interpolated into a surface raster.
2. Z value field
The field that holds a
height or magnitude value for each point.
This can be a numeric
field or the Shape field if the input point features contain z-values.
3. Output raster
The output interpolated
surface raster.
It is always a
floating-point raster.
4. Output cell size (optional)
The cell size of the
output raster that will be created.
This parameter can be defined by a numeric value or obtained from an existing raster dataset. If the cell size hasn't been explicitly specified as the parameter value, the environment cell size value will be used if specified; otherwise, additional rules will be used to calculate it from the other inputs. See the usage for more detail.
Spline
How to use Spline Tool in ArcToolbox ArcMap ArcGIS ??
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| Spline Tool |
Spline Tool, Raster Interpolation Toolset, 3D Analyst Toolbox
Spline
Interpolates a raster
surface from points using a two-dimensional minimum curvature spline technique.
The resulting smooth
surface passes exactly through the input points.
1. Input point features
The input point features
containing the z-values to be interpolated into a surface raster.
2. Z value field
The field that holds a
height or magnitude value for each point.
This can be a numeric
field or the Shape field if the input point features contain z-values.
3. Output raster
The output interpolated
surface raster.
It is always a
floating-point raster.
4. Output cell size (optional)
The cell size of the
output raster that will be created.
This parameter can be
defined by a numeric value or obtained from an existing raster dataset. If the
cell size hasn't been explicitly specified as the parameter value, the
environment cell size value will be used if specified; otherwise, additional
rules will be used to calculate it from the other inputs. See the usage for
more detail.
5. Spline type (optional)
The type of spline to be
used.
·
REGULARIZED—Yields a smooth surface and smooth first derivatives.
·
TENSION—Tunes the stiffness of the interpolant according to the
character of the modeled phenomenon.
6. Weight (optional)
Parameter influencing the character of the
surface interpolation.
When the REGULARIZED option is used, it defines
the weight of the third derivatives of the surface in the curvature
minimization expression. If the TENSION option is used, it defines the weight
of tension.
The default weight is 0.1.
7. Number of points (optional)
The number of points per region used for local
approximation.
The default is 12.
Spline with Barriers
How to use Spline with Barriers Tool in ArcToolbox ArcMap ArcGIS ??
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| Spline with Barriers |
Spline with Barriers Tool, Raster Interpolation Toolset, 3D Analyst Toolbox
Spline with Barriers
Interpolates a raster
surface, using barriers, from points using a minimum curvature spline
technique. The barriers are entered as either polygon or polyline features.
1. Input point features
The input point features
containing the z-values to be interpolated into a surface raster.
2. Z value field
The field that holds a
height or magnitude value for each point.
This can be a numeric
field or the Shape field if the input point features contain z-values.
3. Output raster
The output interpolated
surface raster.
It is always a
floating-point raster.
4. Input barrier features (optional)
The optional input
barrier features to constrain the interpolation.
5. Output cell size (optional)
The cell size of the
output raster that will be created.
This parameter can be defined by a numeric value or obtained from an existing raster dataset. If the cell size hasn't been explicitly specified as the parameter value, the environment cell size value will be used if specified; otherwise, additional rules will be used to calculate it from the other inputs. See the usage for more detail.
6. Smoothing factor (optional)
The parameter that influences the smoothing of the output surface.
No smoothing is applied when the value is zero and the maximum amount of smoothing is applied when the factor equals 1.
The default is 0.0.
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