GPSFileDepot Forums
General Category => Map Making Support => Topic started by: savage on January 10, 2009, 04:06:28 PM
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Any ideas on what could cause that error? I am trying to build a combined map (MA/VT/NH) and I get those errors in the middle of the map. I am missing 4 or 5 rectangles. All the other MP files seem good.
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It actually says "Unkown error"?
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Yes it says Unknown. I am trying to see if I can find something. Talk about a needle in a hay stack!
My rectangles are numbered:
A1 .. A5
...
I1 .. I5
And I get an error on:
D2
E1 E2 E3
F1 F2 F3
G2
All the other rectangles appear to be ok.
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That reall is the worst error message ever.
What is the same throughout those that isn't the same in any of the others?
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I think the "Unknown error" might be a "not enough memory" type of error. I am now trying a different process:
- I am combining all the files except the elevation files to generate intermediate .MP files. This process seems to work OK. I have now generated the MP files where before I got my 'Unknown error'. So we know the "Unknown error" is not because of bizarre data in the GNIS/Transportation/etc files.
- When this is done I will combine the .MP files above with the elevation data to generate the final MP files.
This process will use less memory because when I bring in the elevation data (already split in smaller rectangles) I won't have in memory all the GNIS/Transportation/Water/etc files already loaded.
From what I can see, it looks like GM loads only the files it needs.
Stay tuned...
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I think the "Unknown error" might be a "not enough memory" type of error. I am now trying a different process:
- I am combining all the files except the elevation files to generate intermediate .MP files. This process seems to work OK. I have now generated the MP files where before I got my 'Unknown error'. So we know the "Unknown error" is not because of bizarre data in the GNIS/Transportation/etc files.
- When this is done I will combine the .MP files above with the elevation data to generate the final MP files.
This process will use less memory because when I bring in the elevation data (already split in smaller rectangles) I won't have in memory all the GNIS/Transportation/Water/etc files already loaded.
From what I can see, it looks like GM loads only the files it needs.
Stay tuned...
I took a look around the GM forum and it would appear that most likely that is a memory. I think it tops out at 2gigs in 32bit windows but can use up to 4 gigs in 64bit.
Perhaps look at the coordinates of the pieces missing and and export them from GM via lat/lon bounds to those coordinates?
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It definitely dies at 2gb for me.
I do it exactly like that now.
I use DOS to combine the new, with the copy binary tag. It has never failed me yet.
I only put the dictionary header in the one with all the elements (gnis, roads, etc) and then I have a blank header made up (with nothing) that I put in the one with the topo.