Tips and Tricks moving from Surfaces to MapInfo Pro Raster

[A] In Discover  64-bit, my MRR raster grid is not listed/recognized by Discover tools

Solution

Most tools support MRR files, and some will allow Field/Band selection (as ER Mapper and other formats are multibanded). If you cannot select a MRR gird file it is not yet supported in that particular tool. If you cannot select a Band to use, it will use the first field/band.

If you need to convert a MRR to a standard format, that 3rd party programs support, use the RASTER>Operations>Convert tool.

[B] In Discover 64-bit, I cannot change the color display of my grid in RASTER (for a grid created in Discover's old Surfaces module or open by Grid Image)

Issue:

None of the RASTER>Display options work, such as Color, Color Stretch, or Hill Shade. Or in Discover 2017 and later, the SURFACES>Display options do not work.

Solution:

In Discover 2017, simply use the SURFACES>Display>Grid Toggle option to switch between using Surfaces or Raster colouring options.

When opening a  grid (created with Discover's old Surfaces module) into MapInfo Discover 2015.2, do not open via the TAB file. Instead:

1/. Select Open Table

2/. Change the Files of type to <Raster Image>, and browse for the source grid file.

3/. Press Open.

4/. A prompt 'Table definition already exists. Overwrite it?' will be displayed. Accept this by pressing OK.

You will now be able to apply the RASTER>Display options to this raster grid.

 

[C] In MapInfo Discover 32-bit, a 'Raster engine was unable to recognize image file format' error is shown when trying to open a grid created or modified by RASTER (in MapInfo Discover 64-bit).

Solution

Use the same solution as [B], the SURFACES>Display>Grid Toggle option before opening in 32-bit.

Do not open the raster grid back into MapInfo Discover 32-bit via the TAB file.

Instead:

1/. Select File>Open

2/. Set the Files of type to <Grid Image>, and browse for the raster grid

3/. Press Open

4/. A prompt 'Table definition already exists. Overwrite it?' will be displayed.  Accept this by pressing OK.


[D] In MapInfo Pro Raster, what is the equivalent of the Surfaces tool?:

Grid Query > Select by Value (greater than a value)

1/. Use RASTER>Operations>Contour

  

2/. Set Contour Type to <Region>

3/. Set Method to <Fixed Intervals>

4/. Press the Intervals button, and set both the Minimum and Maximum entries to the desired Value

5/. Press OK.


Assign Values from Grid

MapInfo Pro Raster provides this functionality as 3 enhanced tools specific to the vector type under RASTER>Operations:

- Point Inspect  

- Line Stats       

- Region Stats   





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