MapInfo Pro Advanced supports a wide variety of interpolation methods to create surface raster from point data.
Input File
Click Select File, to open the Select Input File panel. Then, from the Select File drop-down list, select the files which are already open in the Map window of MapInfo Pro. To add more data source files:
- Click Add Files icon to browse and add one or more files.
- Click Add Folder to add all files with specific format from a folder. You need to specify a file format. Only the files with specific format will be selected and other file types are ignored. You can Include Sub Folder also.
Click OK to exit the Select Input File panel and return to the main dialog box.
Data conditioning enables you to use the selected data as input source for interpolation. For more information, see Filtering Input Data for Interpolation.
Select Columns
Select one or more columns from the list. The column list corresponds to the column name in the input file containing the point data.
In the case of the MapInfo .TAB file, you can also use the MapInfo Pro selection command to select certain data from the open file. When you select certain point data from the Map window or the Browser window, then the Input File drop-down list displays Selection.
Group by
If you have huge dataset but you wish to perform interpolation for selected data only, you can use the data conditioning and grouping options by clicking button. MapInfo Pro Advanced allows you to filter your input data before executing the interpolation. Data conditioning and grouping are pre-processing operations on the input data prior to gridding.
Interpolation Method
Select Method
This drop-down list contains the Assignment interpolation methods used to create the raster. Select one of the methods from the list.
MapInfo Pro Advanced supports the following Assignment interpolation methods. Click the links below to know more about the supported methods and their properties.
Output File
Specify a name, location and format for the output raster that you are creating. In the Output File box enter the name you want to specify for your output file. Click to browse to the location in your computer to save the output file. You can also select the required output file format.
Click Output Settings to specify the following. The values in Output Settings are controlled by the Raster Preferences dialog; however, you can override those settings here.
Display Output File - Select the check-box, if you want to open the output file in the Map window on completion of the operation. You can configure to make this the default behavior from the Raster Preferences dialog.
If the output file format is an MRR or a TIFF, additional options appear. The available options are listed below.
- Compression Settings
- Data Balanced
- Data Speed
- Data Space
- Advanced
The Data Balanced option allows you to achieve a balance between speed of operation and file size. The system selects the best combination of speed and space for you. With the other two options Data Speed and Data Space, you can choose between speed of operation and storage space. Choose Advanced option to set the advanced compression settings such as compression method, level, and encoding type. For details on the Advanced option, see Compression Settings.
- Compression- Select a suitable compression method and level for the data. For more information on compression, see Compression methods.
- Encoding Type - Select a suitable Encoding Type for the data from the list. It enables you to compress the data when saving a raster to MRR format. Encoding Type is enabled only when the raster field type is Continuous and the compression method is lossless such as ZIP, LZMA or LZ4. The drop-down list contains the following:
- None - No encoding.
- Previous Column Linear - Performs linear estimation of the value from previous two columns.
- Previous Column Value - Predicts the value from previous column.