In the upcoming 2021.1 update we will be addressing transparency related issues in raster rendering. It will be improved for both MapInfo and Runtime. Our current plans is to release 2021.1 update (with all supported languages) around end of March.
Original Message:
Sent: 02-23-2022 02:11
From: Oliver Best
Subject: Unwanted transparency with 8 bit images
Good Morning Anshul.
Thanks a lot for picking up this issue.
Luckily you could provide me/our customer with a workaround.
It's not the very best solution, because the IT-Team has to distribute this file to bunch of machines - but will be possible.
Problem is that we expect a lot of requests from our customers related to this.
Based on MIPro 32-Bit we rarley have had trouble with the display of raster files.
This changed with MIPro 64-Bit. Since we have increasing feedback that raster data are not displayed correctly (especially using *tif). Often we have to change the settings in the corresponding dialog of MapInfo Pro Raster. But a fourth/third of our customers do use MIRT.
Anyway .. ... thanks again for providing us with a quick solution.
Oliver
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Oliver Best
AGIS Anwender-Geo-Informations-Systeme GmbH
Bad Homburg
Original Message:
Sent: 02-22-2022 12:20
From: Anshul Goel
Subject: Unwanted transparency with 8 bit images
Hello Oliver,
The same can be achieved in MapInfo Runtime by following below steps:
1. Navigate to MIRasterPreferences.xml file. This can be found at %appdata%\MapInfo\RasterRT\500 location (If using Runtime 2019).
2. Open the MIRasterPreferences.xml file in a text editor and make changes based on the screenshot provided.
Once done save the changes and relaunch MapInfo Runtime. This should do the trick.
Hope it helps.
Thanks
Anshul
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Anshul Goel
Pitney Bowes Software Inc.
Shelton CT
Original Message:
Sent: 02-21-2022 08:57
From: Oliver Best
Subject: Unwanted transparency with 8 bit images
Hi Andrei.
I got a request from one of our customers related to this.
Based on the settings you mentioned, raster will be displayed is correctly when using MIPro.
But they also have a plenty of MapInfo Runtime in use.
So: how to apply the settings in MI RT?
Did attach a PDF which illustrates the issue.
Best regards
Oliver (AGIS GmbH)
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Oliver Best
AGIS Anwender-Geo-Informations-Systeme GmbH
Bad Homburg
Original Message:
Sent: 02-12-2020 22:59
From: Andrei Veselov
Subject: Unwanted transparency with 8 bit images
Hi Tim,
Great to hear from you as well!
Can you try to disable MiRaster handlers in Raster Preferences dialog? You will need to do it for both Native and GDAL drivers (see attached images).
That would force Pro to use older raster handlers.
Regards,
Andrei
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Andrei Veselov
Pitney Bowes Software Inc.
Troy NY
Original Message:
Sent: 02-12-2020 22:24
From: Timothy Mashford
Subject: Unwanted transparency with 8 bit images
Hi Andrei,
Good to hear from you :)
I've attached a sample file.
Thanks,
Tim
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Timothy Mashford
Melbourne, Australia
Original Message:
Sent: 02-12-2020 21:39
From: Andrei Veselov
Subject: Unwanted transparency with 8 bit images
Hi Timothy,
Can you share a GeoTiff raster that you are using?
Thanks,
Andrei
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Andrei Veselov
Pitney Bowes Software Inc.
Troy NY
Original Message:
Sent: 02-12-2020 21:14
From: Timothy Mashford
Subject: Unwanted transparency with 8 bit images
I'm trying to open 8 bit GeoTIFF images in MapInfo Pro v2019. It seems to automatically be making white pixels transparent?
I've tried setting no transparent colour (or setting a different colour) under Adjust Image Styles, but the white pixels are always transparent in the map.
I've tried searching for a solution but didn't find any. Closest I got was some discussion about alpha channels and being able to disable this under the Raster options, however it appears that Raster options are now not available in the standard licence anyway?
Thanks,
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Timothy Mashford
Melbourne, Australia
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