Hello Jay,
The reason why you are seeing this error is because the files are getting mounted as imagery. Currently Polygonise and Classify tool only works on continuous data.
So one solution would be to convert these files to continuous field using calculator tool. The output generated can then be used as input to Polygonise and Classify tool.
Make sure to set "Override Output Field Type" to "Continuous" in calculator tool.
Let us know if it works.
Thanks
Anshul
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Anshul Goel
Pitney Bowes Software Inc.
Shelton CT
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Original Message:
Sent: 10-14-2021 13:57
From: Jay Russell
Subject: Raster Operations error message - invalid or unsupported format
I'm testing the new raster features in MapInfo 2021 on storm surge hazard TIF files (National Storm Surge Hazard Maps - Version 2 (noaa.gov))
When I try to polygonise or create a classified raster I get the error message: "Selected file is invalid or unsupported. See help for supported format".
In the list of supported raster formats TIF shows Yes for Processing and Display. What else can I try to get the data into a classified raster and/or polygons by each classification.
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Jay Russell
CENTERPOINT ENERGY RESOURCES
Houston TX
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