Mike, I'm having some problems creating a script file to export a XYZ file into a bil/dem file. - If I create an triangulated grid form the xyz file, and save...
Jose, The EMBED_OVERLAY has a UU-encoded stream of data after it that is the binary representation of the elevation grid in an internal format. Can you try...
Mike, I splitted the big mp file into 25 xyz files and was trying to write an script to create 25 bil/dem files, as I understood this was possible if the...
Jose, You should be able to grid the data and export it to a new file from a script. Just use the IMPORT_ASCII command to import and grid the XYZ data, then...
Mike, Thanks for your patient, now I see what I was missing: I was importing the xyz file as "POINT, LINE & AREA features". So I suppose the point is that...
This is my first attempt at coding something with Global Mapper. I'm trying to run a viewshed analysis, in VB 2005. I believe I have everything setup...
Hello. When importing a scattered data .xyz file as an elevation file, Global Mapper determines a default resolution for the resulting grid. Is there a...
Can you provide your VB declarations for the GM_ViewShedParams_t structure and the GM_CalcViewShed function so that I can make sure that they are correct? With...
Floyd, There is an algorithm used by Global Mapper to determine the default spacing to use. First the XYZ file is triangulated, then statistics about the width...
Mike, Thanks for the response. Below is my code. <StructLayout(LayoutKind.Sequential)> Public Structure GM_ViewShedParams_t Public mSize As Int32 Public...
Can anyone give me information to access high-quality US aerial imaging -- similar or the same as the database Google Earth uses? The DOQ Terraserver database...
I would like information on newer Satellite shots also if anyone has a source. The Terraserver information is at least 5 yrs old in many cases. Tom Cartier ...
Colin/Tom, Try sources like www.digitalglobe.com, www.spaceimaging.com, and www.mapmart.com . They should have access to newer higher quality data. Of course...
... Another place to look is the following: http://home.pacbell.net/lgalvin/drgnotes The page's focus is a collection of links to data the can be used in...
Please excuse the newbie questions, I am evaluating GM and am still trying to learn the program. My question: It appears that GM has only one truly editable...
In Global Mapper layering is done more with classifications than with the overlays listed in the Overlay Control Center. What I would suggest doing is creating...
In performing LOS analysis, the From Sight Elevation allows us to select the height at the start position. It can be defined above ground. Does this above...
If you select the 'above ground' option then the height that you specified will be added to the height of the terrain at the start location to determine the...
Hi, was using VB.net to call out the GM_GetPathProfileLOS function. For the function, we need to pass a pointer to a structure, which in VB.net there is two...
I think that your problem is the declaration of the mElevList parameter in the structure definition. I'm no VB export, but I don't think that you can equate a...
We are using the GM dll version 1.20 in the C#.NET environment. The dll responds fine when called a limited number of times. (Anything less than 1000 seems to...
If you watch the memory usage does it climb at all? I'm wondering if there is a memory leak somewhere. Can you provide your actual code that you are using? ...
Memory usage appears to be constant and low (lower than I expected, though not by much). CPU use is also low. Code is pretty simple (though long) - set the...
Have done the following corrections and the code works now. Thanks! <StructLayout(LayoutKind.Sequential)> Public Structure GM_PathProfileLOSParams_t ... Public...
Mike, When importing a csv file, do we must have the coordinates in the two first columns, even the file has a header row?. I mean, I can't import a file like...
Jose, If the coordinates are not at the start of the line then you need to specify the number of columns of data to skip before getting to the data using the ...
Oooops, I thought column names were enough! Works fine, thanks Jose ... to specify ... using the ... use a value ... [mailto:global_mapper@yahoogroups.com] ......
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