Using the Rasterize Tool - MapInfo_Pro_Advanced - 2023

To convert a vector file of polygon objects to raster:

1. On the RASTER tab, in the Operations group, click Raster Operations and then click the Rasterize button to open the Rasterize dialog box.
2. Click in the Input File field and select the input TAB file.

   Following is an example of an input tab file with overlapping regions.

   
   

   

   
   
3. Perform one of the following:
   • Select Null from the Assign Value drop-down list.
   • Select FixedValue from the Assign Value drop-down list. Type the overlay value for the output raster in the Overlay Field field.
   • Select FromColumn from the Assign Value drop-down list. Select the required vector column from the Cell Value Assignment drop-down list.
4. Select an overlay operator from the Cell Value Assignment drop-down list.

   If there are overlapping objects in the vector file, the numeric value from the field will be handled according to the following options:

   • First - The field value of the first vector object is used. The output raster is displayed below:
     
     
     
     
   • Last - The field value of the last vector object is used. The output raster is displayed below:
     
     
     
     
   • Minimum - The minimum field value from the overlapping objects is used. The output raster is displayed below:
     
     
     
     
   • Maximum - The maximum field value from the overlapping objects is used. The output raster is displayed below:
     
     
     
     
   • Average - The average field value from the overlapping objects is used. The output raster is displayed below:
     
     
     
     
   • Sum - Sum of all the values from the overlapping objects. The output raster is displayed below:
     
     
     
     
   • Median - Median of all the values from the overlapping objects. The output raster is displayed below:
     
     
     
     
   • Range - Range of all the values from the overlapping objects. The output raster is displayed below:
     
     
     
     
5. Type the size of the cell for the destination raster in the Cell Size field.
6. Type the background value for the output raster in the Background value field.
7. Select the output raster field type from the Output Raster Type drop-down list. Rasterize supports classified and continuous field types only.
8. Select the output grid unit from the Data Units drop-down list.
9. Click Process to start converting the input vector file to raster.