RE: MI colour/greyscale raster
Thanks! Never thought of the wildcards - it might work... anyone? Actually, for my specific project (with LOTS of .TAB and .TIF files), I started by using dir *.tab copy.bat dir *.tab add.bat and then used Search Replace to build the .BAT files Regards Peter Peter Ketting, GIS consultant Ministry for Environment and Energy Denmark -- Fra: Thake, Peter[SMTP:[EMAIL PROTECTED]] Sendt:17. august 1999 15:00 Til: '[EMAIL PROTECTED]' Cc: 'Mapinfo-L' Emne: RE: MI colour/greyscale raster Hi Peter, Nice solution! What a pity you can't use wildcards to add the text to all tab files in a directory! (Or can you?) Pete -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: 17 August 1999 10:52 To: [EMAIL PROTECTED] Subject: RE: MI colour/greyscale raster Hi Steve, Pete and others! As somebody might have mentioned, you can have several .TAB files using the same .TIF file. This means you can have a number of different raster setups with almost no additional load on your precious hard drives. So in this case I think you would want to go with two .TAB files for each .TIF - one for viewing, one for printing. Then, if you are fortunate enough to still have the original .TAB files WITHOUT any Rasterstyle clause, you can quickly add the appropriate clause in a DOS prompt using the statement echo Rasterstyle 1 52 myfile.tab This will add the text "Rasterstyle 1 52" (without quotes) to the end of the file. *note: In the above statement, insert the correct rasterstyle (you should be able to read it in an "adjusted" .TAB) instead of 1 52, and insert the correct filename instead of myfile.tab. To show an example: Let's assume, that you have raster images consisting of pairs like this: image1.tif image1.tab image2.tif image2.tab image3.tif image3.tab When viewed in Mapinfo they display in (unadjusted) colours. When the .TAB files are viewed in a text editor, they do NOT contain a Rasterstyle clause. Make a file named copy.bat containing the text copy image1.tab bwimage1.tab copy image2.tab bwimage2.tab copy image3.tab bwimage3.tab and place it in the same directory as the .TAB files. Run copy.bat Open the file bwimage1.tab in Mapinfo, and adjust it to the grayscale display you need for printing. Close the file. Open the file bwimage1.tab in a text editor, and note the Rasterstyle clause at the end. For this example we'll asume it's 1 52. Make a file named add.bat containing the text echo Rasterstyle 1 52 bwimage2.tab echo Rasterstyle 1 52 bwimage3.tab and place it in the same directory as the .TAB files. *note: Leave out bwimage1.tab, you already adjusted it manually. Run add.bat and that _should_ be it! I'm writing this from memory, so I might have slipped somewhere, but I _have_ used this approach, and it works! HTH. Peter Peter Ketting, GIS consultant Ministry for Environment and Energy Denmark -- Fra:Thake, Peter[SMTP:[EMAIL PROTECTED]] Sendt: 16. august 1999 16:23 Til:'Steve Halsall' Cc: 'Mapinfo-L' Emne: RE: MI colour/greyscale raster Hi Steve, Firstly apologies for my delayed response - I have been on holiday! I have had the same problem here with a load of raster maps and in my case found the easiest solution was for the user to have access to the image styles tool to lighten the images as required. However, this may not apply to your situation. The mapinfo .tab file DOES seem to record the image style - open the .tab up in a text editor and look for this: RasterStyle 1 52 RasterStyle 2 51 RasterStyle 3 1 These values vary according to the style setting you chose - surprisingly, this seems to be saved to the .tab without you being prompted. Unfortunately I think you are right though, I can not think of any 'quick fix' to edit this value - other than to write some mapbasic to open each table in turn and change the image style and save the table with a different name, or some Visual Basic to manually edit the .tab file and save it with a different name. You could do a find and replace on the .tab file in a text editor, but this still means doing this 84 times... Good luck! Pete, Ordnance Survey, UK -Original Message- From: Steve Halsall [mailto:[EMAIL PROTECTED]] Sent: 10 August 1999 13:48 To: '[EMAIL PROTECTED]' Subject: MI colour/greyscale raster Hi I am using the UK Ordnance Survey 1:50,000 raster mapping (tif format) with their Boundary Line product. The tif map tiles are in colour which is great for when I want to view an area. However I am mainly interested in the boundaries (from Boundary Line) and just need the raster mapping for reference. For printing purposes I change the raster image to greyscale and
RE: MI colour/greyscale raster
Hi Peter, Nice solution! What a pity you can't use wildcards to add the text to all tab files in a directory! (Or can you?) Pete -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: 17 August 1999 10:52 To: [EMAIL PROTECTED] Subject: RE: MI colour/greyscale raster Hi Steve, Pete and others! As somebody might have mentioned, you can have several .TAB files using the same .TIF file. This means you can have a number of different raster setups with almost no additional load on your precious hard drives. So in this case I think you would want to go with two .TAB files for each .TIF - one for viewing, one for printing. Then, if you are fortunate enough to still have the original .TAB files WITHOUT any Rasterstyle clause, you can quickly add the appropriate clause in a DOS prompt using the statement echo Rasterstyle 1 52 myfile.tab This will add the text "Rasterstyle 1 52" (without quotes) to the end of the file. *note: In the above statement, insert the correct rasterstyle (you should be able to read it in an "adjusted" .TAB) instead of 1 52, and insert the correct filename instead of myfile.tab. To show an example: Let's assume, that you have raster images consisting of pairs like this: image1.tif image1.tab image2.tif image2.tab image3.tif image3.tab When viewed in Mapinfo they display in (unadjusted) colours. When the .TAB files are viewed in a text editor, they do NOT contain a Rasterstyle clause. Make a file named copy.bat containing the text copy image1.tab bwimage1.tab copy image2.tab bwimage2.tab copy image3.tab bwimage3.tab and place it in the same directory as the .TAB files. Run copy.bat Open the file bwimage1.tab in Mapinfo, and adjust it to the grayscale display you need for printing. Close the file. Open the file bwimage1.tab in a text editor, and note the Rasterstyle clause at the end. For this example we'll asume it's 1 52. Make a file named add.bat containing the text echo Rasterstyle 1 52 bwimage2.tab echo Rasterstyle 1 52 bwimage3.tab and place it in the same directory as the .TAB files. *note: Leave out bwimage1.tab, you already adjusted it manually. Run add.bat and that _should_ be it! I'm writing this from memory, so I might have slipped somewhere, but I _have_ used this approach, and it works! HTH. Peter Peter Ketting, GIS consultant Ministry for Environment and Energy Denmark -- Fra: Thake, Peter[SMTP:[EMAIL PROTECTED]] Sendt:16. august 1999 16:23 Til: 'Steve Halsall' Cc: 'Mapinfo-L' Emne: RE: MI colour/greyscale raster Hi Steve, Firstly apologies for my delayed response - I have been on holiday! I have had the same problem here with a load of raster maps and in my case found the easiest solution was for the user to have access to the image styles tool to lighten the images as required. However, this may not apply to your situation. The mapinfo .tab file DOES seem to record the image style - open the .tab up in a text editor and look for this: RasterStyle 1 52 RasterStyle 2 51 RasterStyle 3 1 These values vary according to the style setting you chose - surprisingly, this seems to be saved to the .tab without you being prompted. Unfortunately I think you are right though, I can not think of any 'quick fix' to edit this value - other than to write some mapbasic to open each table in turn and change the image style and save the table with a different name, or some Visual Basic to manually edit the .tab file and save it with a different name. You could do a find and replace on the .tab file in a text editor, but this still means doing this 84 times... Good luck! Pete, Ordnance Survey, UK -Original Message- From: Steve Halsall [mailto:[EMAIL PROTECTED]] Sent: 10 August 1999 13:48 To: '[EMAIL PROTECTED]' Subject: MI colour/greyscale raster Hi I am using the UK Ordnance Survey 1:50,000 raster mapping (tif format) with their Boundary Line product. The tif map tiles are in colour which is great for when I want to view an area. However I am mainly interested in the boundaries (from Boundary Line) and just need the raster mapping for reference. For printing purposes I change the raster image to greyscale and change the contrast and brightness to about 70% using the Adjust Image Style option in Mapinfo. This produces the output that I want but unfo unately it appears to make this change to the raster map rather than in the MapInfo table or the Workspace. This causes problems as the next time I open the raster map it may not be in the format that I require. The only solution I have come up with is to copy the raster tiles (84 of them!) and rename them, then I will have to rename the relevant MapInfo registration tables (and edit them to point to the correct raster file). I can then use both sets of raster maps within MapInfo switching them off and on as required. Before I g
MI colour/greyscale raster
Hi I am using the UK Ordnance Survey 1:50,000 raster mapping (tif format) with their Boundary Line product. The tif map tiles are in colour which is great for when I want to view an area. However I am mainly interested in the boundaries (from Boundary Line) and just need the raster mapping for reference. For printing purposes I change the raster image to greyscale and change the contrast and brightness to about 70% using the Adjust Image Style option in Mapinfo. This produces the output that I want but unfortunately it appears to make this change to the raster map rather than in the MapInfo table or the Workspace. This causes problems as the next time I open the raster map it may not be in the format that I require. The only solution I have come up with is to copy the raster tiles (84 of them!) and rename them, then I will have to rename the relevant MapInfo registration tables (and edit them to point to the correct raster file). I can then use both sets of raster maps within MapInfo switching them off and on as required. Before I go ahead I would like to ask list members if they have found an easier way? Steve Halsall LGBCW -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
Re: MI colour/greyscale raster
Steve, You don't have to copy the raster tiles, just the .tab file. The .tab file is a text file, which for your raster tables refers to the .tif file you can set up as many .tab files as you like referring to the same .tif file - they don't have to be in the same folder - you can include a full pathname in the File line. For example, here are some excerpts from .tab files. 1. The original colour representation (I've named it z_col_tv.tab) - Definition Table File "z_lzw_tv.tif" Type "RASTER" (50,10) (1,1) Label "NW", (60,10) (4001,1) Label "NE", (60,9) (4001,401) Label "SE", (50,9) (1,401) Label "SW" CoordSys Earth Projection 8, 79, "m", -2, 49, 0.9996012717, 40, -10 Units "m" 2. A greyscale representation of the same .tif file (I've named it z_gry_tv.tab) - Definition Table File "z_lzw_tv.tif" Type "RASTER" (50,10) (1,1) Label "NW", (60,10) (4001,1) Label "NE", (60,9) (4001,401) Label "SE", (50,9) (1,401) Label "SW" CoordSys Earth Projection 8, 79, "m", -2, 49, 0.9996012717, 40, -10 Units "m" RasterStyle 3 1 RasterStyle 3 is the setting that turns greyscale on. To adjust contrast and brightness, add further lines using RasterStyle 1 for brightness and 2 for contrast. Thus RasterStyle 1 70 RasterStyle 2 70 sets both to 70 percent. You can do all this using a text editor (or program). Regards Leslie Last -- -D O T T E D E Y E S- Consultancy - Geographical Information - Marketing -- web: http://www.dottedeyes.com email: [EMAIL PROTECTED] telephone: +44 (0)1527 854830 -- From: Steve Halsall [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' Subject: MI colour/greyscale raster Date: 10 August 1999 13:47 Hi I am using the UK Ordnance Survey 1:50,000 raster mapping (tif format) with their Boundary Line product. The tif map tiles are in colour which is great for when I want to view an area. However I am mainly interested in the boundaries (from Boundary Line) and just need the raster mapping for reference. For printing purposes I change the raster image to greyscale and change the contrast and brightness to about 70% using the Adjust Image Style option in Mapinfo. This produces the output that I want but unfortunately it appears to make this change to the raster map rather than in the MapInfo table or the Workspace. This causes problems as the next time I open the raster map it may not be in the format that I require. The only solution I have come up with is to copy the raster tiles (84 of them!) and rename them, then I will have to rename the relevant MapInfo registration tables (and edit them to point to the correct raster file). I can then use both sets of raster maps within MapInfo switching them off and on as required. Before I go ahead I would like to ask list members if they have found an easier way? Steve Halsall LGBCW -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
