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| geoscene3d:application:interpolation:interpolation_wizard:interpolation_wizard [2020/03/20 14:47] – rebecca130301_gmail.com | geoscene3d:application:interpolation:interpolation_wizard:interpolation_wizard [2021/07/01 11:46] (current) – external edit 127.0.0.1 |
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| ====== Interpolation Wizard ====== | ====== Interpolation Wizard Tabs ====== |
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| | The interpolation dialog sets up a new point data [[:geoscene3d:application:interpolation|]]. After the interpolation has finished a dataset and a 3D object is automatically created and added to the project. From XYZ point data a new surface is created using 2D interpolation. From XYZVal point data a new 3D Grid is created using 3D interpolation. |
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| The interpolation dialog sets up a new point data [[:geoscene3d:application:interpolation:interpolation_wizard:interpolation|]]. After the interpolation has finished a dataset and a 3D object is automatically created and added to the project. From XYZ point data a new surface is created using 2D interpolation. From XYZVal point data a new 3D Grid is created using 3D interpolation. | |
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| ==== Algorithm Tab ==== | ==== Algorithm Tab ==== |
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| When Kriging is selected as the interpolation algorithm the Variogram Tab is visible. Press the "Edit" button to open the [[:geoscene3d:application:interpolation:interpolation_wizard:variogram_editor|]]. Note: The variogram is a fundamental part of Kriging and a careful variogram analysis is necessary for successful Kriging. \\ | When Kriging is selected as the interpolation algorithm the Variogram Tab is visible. Press the "Edit" button to open the [[:geoscene3d:application:interpolation:interpolation_wizard:variogram_editor|]]. Note: The variogram is a fundamental part of Kriging and a careful variogram analysis is necessary for successful Kriging. \\ |
| See [[:geoscene3d:application:interpolation:interpolation_wizard:kriging|Kriging]]. | See [[:geoscene3d:application:interpolation:interpolation_algorithms:kriging|]]. |
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| ==== Settings Tab (Inverse Distance) ==== | ==== Settings Tab (Inverse Distance) ==== |
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| __Exponent: __ Distance weighting exponent. A low exponent produces rounded spikes, whereas higher exponents produce steep spikes \\ See [[:geoscene3d:application:interpolation:interpolation_wizard:inverse_distance_weighted|Inverse Distance Weighted]] \\ | __Exponent: __ Distance weighting exponent. A low exponent produces rounded spikes, whereas higher exponents produce steep spikes \\ See [[:geoscene3d:application:interpolation:interpolation_algorithms:inverse_distance_weighted|]] \\ |
| __Smooth Factor: __ If smooth factor is larger than zero each data point weight is reduced and the interpolation will produce a smoother grid. Beware that smoothin will result in a grid surface that is not exact, meaning that grid node values might be larger or smaller than the input data point values. If smooth factor is zero the resulting grid will be exact. Grids may also be smoothed in the [[:geoscene3d:application:interpolation:interpolation_wizard:geoscene3d_toolbox|GeoScene3D Toolbox]] \\ | __Smooth Factor: __ If smooth factor is larger than zero each data point weight is reduced and the interpolation will produce a smoother grid. Beware that smoothin will result in a grid surface that is not exact, meaning that grid node values might be larger or smaller than the input data point values. If smooth factor is zero the resulting grid will be exact. Grids may also be smoothed in the [[:geoscene3d:toolbox|GeoScene3D Toolbox]] \\ |
| Max Count: | Max Count: |
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| ==== Settings Tab (Kriging) ==== | ==== Settings Tab (Kriging) ==== |
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| __Kriging Type:__ Kriging type may be Simple or Ordinary. For most purposes ordinary Kriging is the best choice. \\ __Variance Grid File: __ Produces an extra grid file containing the variance. The grid file name is identical to the interpolated grid file name with the addition of a _ckgedit_QUOT__Variance" prefix. __ \\ __Data Count Per Search:__ Minimum and maximum allowed number of data points per estimate. If the maximum number of points within the search ellipsis is exceeded the closest points are used. \\ __Block Discretization:__ For values higher than 1 block kriging is performed. \\ __Value Trimming Limits:__ Data values below the Lower and above the Upper limit are not included in the Kriging. \\ __Octant Search:__ Maximum number of data per search ellipsoid octant in 3D (quadrant for ellipsis in 2D). \\ See [[:geoscene3d:application:interpolation:interpolation_wizard:kriging|Kriging]]. | __Kriging Type:__ Kriging type may be Simple or Ordinary. For most purposes ordinary Kriging is the best choice. \\ __Variance Grid File: __ Produces an extra grid file containing the variance. The grid file name is identical to the interpolated grid file name with the addition of a _ckgedit_QUOT__Variance" prefix. __ \\ __Data Count Per Search:__ Minimum and maximum allowed number of data points per estimate. If the maximum number of points within the search ellipsis is exceeded the closest points are used. \\ __Block Discretization:__ For values higher than 1 block kriging is performed. \\ __Value Trimming Limits:__ Data values below the Lower and above the Upper limit are not included in the Kriging. \\ __Octant Search:__ Maximum number of data per search ellipsoid octant in 3D (quadrant for ellipsis in 2D). \\ See [[:geoscene3d:application:interpolation:interpolation_algorithms:kriging|]]. |
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| ==== Search Tab ==== | ==== Search Tab ==== |
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| When the grid is interpolated (2D and 3D) the grid nodes are interpolated one by one. In the search tab it is specified how far away from the interpolated grid point the algorithm should look for data points. If no data points are within search radius the grid node will be blank in the resulting grid. \\ __Search Ellipsis/Ellipsoid:__ In 2D interpolation X and Y describes the major and minor radius in the search ellipsis. For 3D interpolation X, Y and Z describes the major, minor, and vertical radius in the search ellipsoid. \\ __Search Ellipsis/Ellipsoid Angle:__ Rotation angle of the search ellipsis/ellipsoid. In 2D Angle 1 rotates the search ellipsis clockwise around the vertical Z axis. In 3D Angle 2 rotates the ellipsis around the rotated Y axis ("dip"). In 3D angle 3 rotates the ellipsis around the rotated X axis ("plunge"). \\ See [[:geoscene3d:application:interpolation:interpolation_wizard:kriging|Kriging]]. | When the grid is interpolated (2D and 3D) the grid nodes are interpolated one by one. In the search tab it is specified how far away from the interpolated grid point the algorithm should look for data points. If no data points are within search radius the grid node will be blank in the resulting grid. \\ __Search Ellipsis/Ellipsoid:__ In 2D interpolation X and Y describes the major and minor radius in the search ellipsis. For 3D interpolation X, Y and Z describes the major, minor, and vertical radius in the search ellipsoid. \\ __Search Ellipsis/Ellipsoid Angle:__ Rotation angle of the search ellipsis/ellipsoid. In 2D Angle 1 rotates the search ellipsis clockwise around the vertical Z axis. In 3D Angle 2 rotates the ellipsis around the rotated Y axis ("dip"). In 3D angle 3 rotates the ellipsis around the rotated X axis ("plunge"). \\ See [[:geoscene3d:application:interpolation:interpolation_algorithms:kriging|]]. |
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| ==== Grid Geometry Tab ==== | ==== Grid Geometry Tab ==== |
| When this tab is visible partial interpolation is possible. Partial interpolation means that even when working in a local scene extent with only a fraction of both source data points and destination grid visible, the entire grid is updated seamlessly. | When this tab is visible partial interpolation is possible. Partial interpolation means that even when working in a local scene extent with only a fraction of both source data points and destination grid visible, the entire grid is updated seamlessly. |
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| __Partial Interpolation:__ Only the portion of the grid that will be modified by the interpolation is updated. Recommended if the grid file is up to data. Data along the current source data extent may be included in the interpolation. | __Partial Interpolation:__ Only the portion of the grid that will be modified by the interpolation is updated. Recommended if the grid file is up to data. Data along the current source data extent may be included in the interpolation. |
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| __Full Interpolation:__ The entire destination grid will be interpolated and updated. All source data required to interpolated the entire grid is extracted from source. This may be time consuming in case of large amounts of data, but may be necessary if the destination grid is not up to data, i.e., if you know that data outside the current source data extent has changed. | __Full Interpolation:__ The entire destination grid will be interpolated and updated. All source data required to interpolated the entire grid is extracted from source. This may be time consuming in case of large amounts of data, but may be necessary if the destination grid is not up to data, i.e., if you know that data outside the current source data extent has changed. |
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| See also: \\ [[:geoscene3d:application:interpolation:interpolation_wizard:introduction_to_interpolation|Introduction to Interpolation]] \\ [[:geoscene3d:application:interpolation:interpolation_wizard:3d_interpolation_tutorial|2D Interpolation Tutorial]] \\ [[:geoscene3d:application:interpolation:interpolation_wizard:3d_interpolation_tutorial|3D Interpolation Tutorial]] | See also:\\ |
| | [[:geoscene3d:application:interpolation:introduction_to_interpolation|]]\\ |
| | [[:geoscene3d:interpolation:2dinterpolation|2D Interpolation Tutorial]]\\ |
| | [[:geoscene3d:interpolation:3dinterpolation|3D Interpolation Tutorial]] |
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