I have a .flt file that a client wants to use in Microsurvey. I actually have no background in iCAD files, but I thought I'd do what I can to help him if possible. The .flt came from USGS' TNM. I'm still very much a noob at FME, but it seems to me like it should either already be compatible, or something readily converted. If it needs conversion, I'd appreciate someone walking me through the steps. I can provide more info if I've left anything out.
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Hi @terraspatial, thanks for your question!
OpenFlight (.flt) files are supported by FME, and it should be possible to export as a format readable by CAD software like Microsurvey. Do you know what the destination file format needs to be? For instance, .dwg is a common CAD file format. If you have a sample file and/or workspace, it wouldn't hurt to upload it here so users can take a look at your data and transformation.
Thanks,
Nathan
Thanks for the response, @NathanAtSafe. Yes, I'm told .dwg is an acceptable format for what they're doing. I suppose it should be a pretty straightforward transformation? I tried to upload the .flt file, but it's both too large and not an acceptable file format to upload.
Thanks for the response, @NathanAtSafe. Yes, I'm told .dwg is an acceptable format for what they're doing. I suppose it should be a pretty straightforward transformation? I tried to upload the .flt file, but it's both too large and not an acceptable file format to upload.
.flt is not a super common format for FME, but I can help you get started with this conversion. A good first step would be to click File -> Generate workspace within FME Workbench. From here you can specify your reader (Preagis .flt OPENFLIGHT) and writer (AutoCAD .dwg) formats, as well as your incoming and outgoing datasets.
Hope this helps!
Nathan
@NathanAtSafe still getting 1mb limitations for file attachments. I'm going to post the translation log from the generated workbench.
Starting translation...
FME 2017.1.0.0 (20170731 - Build 17539 - WIN64)
FME_HOME is 'C:\\Program Files\\FME\\'
FME Professional Edition temporary FME Database Edition] (node locked-crc)
Serial Number: 0
Temporary License: 26 days left.
Machine host name is: TerraSpatial
START - ProcessID: 22416, peak process memory usage: 30252 kB, current process memory usage: 30120 kB
FME Configuration: Command line arguments are `C:\\Program Files\\FME\\fme.exe' `C:\\Users\\terra\\AppData\\Local\\Temp\\wb-xlate-1507720077781_9392' `LOG_STANDARDOUT' `YES' `LogCountServerName' `{4b416b36-0ed5-4c7e-b089-75fc94028d97}'
Shared folders for formats are : C:\\Program Files\\FME\\datasources;C:\\Users\\terra\\Documents\\FME\\Formats
Shared folders for transformers are : C:\\Program Files\\FME\\transformers;C:\\Users\\terra\\Documents\\FME\\Transformers
Shared folders for coordinate systems are : C:\\Users\\terra\\Documents\\FME\\CoordinateSystems
Shared folders for coordinate system exceptions are : C:\\Users\\terra\\Documents\\FME\\CoordinateSystemExceptions
Shared folders for coordinate system grid overrides are : C:\\Users\\terra\\Documents\\FME\\CoordinateSystemGridOverrides
Shared folders for CS-MAP transformation exceptions are : C:\\Users\\terra\\Documents\\FME\\CsmapTransformationExceptions
Shared folders for transformer categories are : C:\\Users\\terra\\Documents\\FME\\TransformerCategories
FME Configuration: Reader Keyword is `OPENFLIGHT_1'
FME Configuration: Writer Keyword is `MULTI_WRITER'
FME Configuration: Writer Group Definition Keyword is `MULTI_WRITER_DEF'
FME Configuration: Reader type is `OPENFLIGHT'
FME Configuration: Writer type is `MULTI_WRITER'
FME Configuration: No destination coordinate system set
FME Configuration: Current working folder is `C:\\Users\\terra\\AppData\\Local\\Temp'
FME Configuration: Temporary folder is `C:\\Users\\terra\\AppData\\Local\\Temp', set from environment variable `TEMP'
FME Configuration: FME_HOME is `C:\\Program Files\\FME\\'
FME Configuration: FME_BASE is 'no'
FME Configuration: FME_MF_DIR is 'C:\\Users\\terra\\AppData\\Local\\Temp/'
FME Configuration: FME_MF_NAME is 'wb-xlate-1507720077781_9392'
FME Configuration: FME_PRODUCT_NAME is 'FME(R) 2017.1.0.0'
System Status: 393.61 GB of disk space available in the FME temporary folder (C:\\Users\\terra\\AppData\\Local\\Temp)
System Status: 128.00 TB of virtual memory available
Operating System: Microsoft Windows 10 64-bit (Build 15063)
FME Platform: WIN64
Locale: en_US
Code Page: 1252 (ANSI - Latin I)
FME Configuration: Process limit is 15.87 GB of physical memory
FME Configuration: Start freeing memory when process usage exceeds 47.62 GB of virtual memory
FME Configuration: Stop freeing memory when process usage is below 35.71 GB of virtual memory
Creating writer for format:
Creating reader for format: Presagis .flt (OPENFLIGHT)
Trying to find a DYNAMIC plugin for reader named `OPENFLIGHT'
Found .prj file 'C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.prj'. Coordinate system will be set from .prj file
The projection (*.prj) file 'C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.prj' could not be read or the file is empty. The coordinate system for the features in this shape file will not be set
Loaded module 'OPENFLIGHT' from file 'C:\\Program Files\\FME\\plugins/fme_osgrw/fme_osgrw.dll'
FME API version of module 'OPENFLIGHT' matches current internal version (3.8 20170315)
OPENFLIGHT Reader: Reading in Variable FeatureType mode
OPENFLIGHT Reader: Opening source dataset 'C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.flt'
OPENFLIGHT Reader: Reading textures from the following folder: C:\\Users\\terra\\Desktop\\FMEData\\
Using MultiWriter with keyword `MULTI_WRITER' to output data (ID_ATTRIBUTE is `multi_writer_id')
Writer output will be ordered by value of multi_writer_id
Loaded module 'LogCount_func' from file 'C:\\Program Files\\FME\\plugins/LogCount_func.dll'
FME API version of module 'LogCount_func' matches current internal version (3.8 20170315)
OPENFLIGHT Reader: No valid or supported geometry read from input file
OPENFLIGHT Reader: Closing reader
A fatal error has occurred. Check the logfile above for details
FME Session Duration: 0.3 seconds. (CPU: 0.1s user, 0.1s system)
END - ProcessID: 22416, peak process memory usage: 37876 kB, current process memory usage: 37684 kB
A fatal error has occurred. Check the logfile above for details
Program Terminating
Translation FAILED.
Unknown record, opcode=44079 size=12611
Unknown record, opcode=17286 size=27205
Unknown record, opcode=57943 size=19267
Unknown record, opcode=17284 size=64560
Unknown record, opcode=17192 size=55883
Unknown record, opcode=21571 size=13934
Unknown record, opcode=51377 size=14147
Unknown record, opcode=17174 size=45899
Unknown record, opcode=19779 size=5053
Unknown record, opcode=17171 size=65072
Unknown record, opcode=17330 size=11849
Unknown record, opcode=64256 size=17987
Unknown record, opcode=17392 size=24886
Unknown record, opcode=50500 size=17228
Unknown record, opcode=39476 size=17192
Unknown record, opcode=23613 size=17277
Unknown record, opcode=12355 size=3838
Unknown record, opcode=57659 size=13123
Unknown record, opcode=17257 size=33869
Unknown record, opcode=5121 size=12611
Unknown record, opcode=17326 size=37439
Unknown record, opcode=15171 size=11687
Unknown record, opcode=5949 size=17299
Unknown record, opcode=2046 size=12355
Unknown record, opcode=17366 size=30518
Unknown record, opcode=65072 size=17159
Unknown record, opcode=2983 size=19523
Unknown record, opcode=17388 size=21835
Unknown record, opcode=14403 size=51729
Unknown record, opcode=17319 size=46925
Unknown record, opcode=22647 size=15939
Unknown record, opcode=17407 size=64816
Unknown record, opcode=17364 size=55371
Unknown record, opcode=17731 size=45992
Unknown record, opcode=18755 size=57408
Unknown record, opcode=17256 size=31304
Unknown record, opcode=17187 size=58952
Unknown record, opcode=17203 size=64816
Unknown record, opcode=17263 size=23883
Unknown record, opcode=17228 size=59984
Unknown record, opcode=17327 size=27204
Unknown record, opcode=17189 size=10315
Unknown record, opcode=15939 size=31604
Unknown record, opcode=16963 size=25223
Unknown record, opcode=64816 size=17396
Unknown record, opcode=39753 size=17194
Unknown record, opcode=13123 size=30325
Unknown record, opcode=17396 size=64816
Unknown record, opcode=34388 size=17286
Unknown record, opcode=17152 size=49
Unknown record, opcode=0 size=12611
Unknown record, opcode=20569 size=19523
Unknown record, opcode=17273 size=24374
Unknown record, opcode=64590 size=17345
Unknown record, opcode=13635 size=34184
Warning: Error in reading to "C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.flt".
Just posted the translation log with the error @NathanAtSafe
@NathanAtSafe still getting 1mb limitations for file attachments. I'm going to post the translation log from the generated workbench.
Starting translation...
FME 2017.1.0.0 (20170731 - Build 17539 - WIN64)
FME_HOME is 'C:\\Program Files\\FME\\'
FME Professional Edition temporary FME Database Edition] (node locked-crc)
Serial Number: 0
Temporary License: 26 days left.
Machine host name is: TerraSpatial
START - ProcessID: 22416, peak process memory usage: 30252 kB, current process memory usage: 30120 kB
FME Configuration: Command line arguments are `C:\\Program Files\\FME\\fme.exe' `C:\\Users\\terra\\AppData\\Local\\Temp\\wb-xlate-1507720077781_9392' `LOG_STANDARDOUT' `YES' `LogCountServerName' `{4b416b36-0ed5-4c7e-b089-75fc94028d97}'
Shared folders for formats are : C:\\Program Files\\FME\\datasources;C:\\Users\\terra\\Documents\\FME\\Formats
Shared folders for transformers are : C:\\Program Files\\FME\\transformers;C:\\Users\\terra\\Documents\\FME\\Transformers
Shared folders for coordinate systems are : C:\\Users\\terra\\Documents\\FME\\CoordinateSystems
Shared folders for coordinate system exceptions are : C:\\Users\\terra\\Documents\\FME\\CoordinateSystemExceptions
Shared folders for coordinate system grid overrides are : C:\\Users\\terra\\Documents\\FME\\CoordinateSystemGridOverrides
Shared folders for CS-MAP transformation exceptions are : C:\\Users\\terra\\Documents\\FME\\CsmapTransformationExceptions
Shared folders for transformer categories are : C:\\Users\\terra\\Documents\\FME\\TransformerCategories
FME Configuration: Reader Keyword is `OPENFLIGHT_1'
FME Configuration: Writer Keyword is `MULTI_WRITER'
FME Configuration: Writer Group Definition Keyword is `MULTI_WRITER_DEF'
FME Configuration: Reader type is `OPENFLIGHT'
FME Configuration: Writer type is `MULTI_WRITER'
FME Configuration: No destination coordinate system set
FME Configuration: Current working folder is `C:\\Users\\terra\\AppData\\Local\\Temp'
FME Configuration: Temporary folder is `C:\\Users\\terra\\AppData\\Local\\Temp', set from environment variable `TEMP'
FME Configuration: FME_HOME is `C:\\Program Files\\FME\\'
FME Configuration: FME_BASE is 'no'
FME Configuration: FME_MF_DIR is 'C:\\Users\\terra\\AppData\\Local\\Temp/'
FME Configuration: FME_MF_NAME is 'wb-xlate-1507720077781_9392'
FME Configuration: FME_PRODUCT_NAME is 'FME(R) 2017.1.0.0'
System Status: 393.61 GB of disk space available in the FME temporary folder (C:\\Users\\terra\\AppData\\Local\\Temp)
System Status: 128.00 TB of virtual memory available
Operating System: Microsoft Windows 10 64-bit (Build 15063)
FME Platform: WIN64
Locale: en_US
Code Page: 1252 (ANSI - Latin I)
FME Configuration: Process limit is 15.87 GB of physical memory
FME Configuration: Start freeing memory when process usage exceeds 47.62 GB of virtual memory
FME Configuration: Stop freeing memory when process usage is below 35.71 GB of virtual memory
Creating writer for format:
Creating reader for format: Presagis .flt (OPENFLIGHT)
Trying to find a DYNAMIC plugin for reader named `OPENFLIGHT'
Found .prj file 'C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.prj'. Coordinate system will be set from .prj file
The projection (*.prj) file 'C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.prj' could not be read or the file is empty. The coordinate system for the features in this shape file will not be set
Loaded module 'OPENFLIGHT' from file 'C:\\Program Files\\FME\\plugins/fme_osgrw/fme_osgrw.dll'
FME API version of module 'OPENFLIGHT' matches current internal version (3.8 20170315)
OPENFLIGHT Reader: Reading in Variable FeatureType mode
OPENFLIGHT Reader: Opening source dataset 'C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.flt'
OPENFLIGHT Reader: Reading textures from the following folder: C:\\Users\\terra\\Desktop\\FMEData\\
Using MultiWriter with keyword `MULTI_WRITER' to output data (ID_ATTRIBUTE is `multi_writer_id')
Writer output will be ordered by value of multi_writer_id
Loaded module 'LogCount_func' from file 'C:\\Program Files\\FME\\plugins/LogCount_func.dll'
FME API version of module 'LogCount_func' matches current internal version (3.8 20170315)
OPENFLIGHT Reader: No valid or supported geometry read from input file
OPENFLIGHT Reader: Closing reader
A fatal error has occurred. Check the logfile above for details
FME Session Duration: 0.3 seconds. (CPU: 0.1s user, 0.1s system)
END - ProcessID: 22416, peak process memory usage: 37876 kB, current process memory usage: 37684 kB
A fatal error has occurred. Check the logfile above for details
Program Terminating
Translation FAILED.
Unknown record, opcode=44079 size=12611
Unknown record, opcode=17286 size=27205
Unknown record, opcode=57943 size=19267
Unknown record, opcode=17284 size=64560
Unknown record, opcode=17192 size=55883
Unknown record, opcode=21571 size=13934
Unknown record, opcode=51377 size=14147
Unknown record, opcode=17174 size=45899
Unknown record, opcode=19779 size=5053
Unknown record, opcode=17171 size=65072
Unknown record, opcode=17330 size=11849
Unknown record, opcode=64256 size=17987
Unknown record, opcode=17392 size=24886
Unknown record, opcode=50500 size=17228
Unknown record, opcode=39476 size=17192
Unknown record, opcode=23613 size=17277
Unknown record, opcode=12355 size=3838
Unknown record, opcode=57659 size=13123
Unknown record, opcode=17257 size=33869
Unknown record, opcode=5121 size=12611
Unknown record, opcode=17326 size=37439
Unknown record, opcode=15171 size=11687
Unknown record, opcode=5949 size=17299
Unknown record, opcode=2046 size=12355
Unknown record, opcode=17366 size=30518
Unknown record, opcode=65072 size=17159
Unknown record, opcode=2983 size=19523
Unknown record, opcode=17388 size=21835
Unknown record, opcode=14403 size=51729
Unknown record, opcode=17319 size=46925
Unknown record, opcode=22647 size=15939
Unknown record, opcode=17407 size=64816
Unknown record, opcode=17364 size=55371
Unknown record, opcode=17731 size=45992
Unknown record, opcode=18755 size=57408
Unknown record, opcode=17256 size=31304
Unknown record, opcode=17187 size=58952
Unknown record, opcode=17203 size=64816
Unknown record, opcode=17263 size=23883
Unknown record, opcode=17228 size=59984
Unknown record, opcode=17327 size=27204
Unknown record, opcode=17189 size=10315
Unknown record, opcode=15939 size=31604
Unknown record, opcode=16963 size=25223
Unknown record, opcode=64816 size=17396
Unknown record, opcode=39753 size=17194
Unknown record, opcode=13123 size=30325
Unknown record, opcode=17396 size=64816
Unknown record, opcode=34388 size=17286
Unknown record, opcode=17152 size=49
Unknown record, opcode=0 size=12611
Unknown record, opcode=20569 size=19523
Unknown record, opcode=17273 size=24374
Unknown record, opcode=64590 size=17345
Unknown record, opcode=13635 size=34184
Warning: Error in reading to "C:\\Users\\terra\\Desktop\\FMEData\\usgs_ned_13_n46w085_gridfloat.flt".
Here we can see that the reader doesn't find valid geometry in the file. I'm not sure why, however - we'd need to take a look at your data to figure out what's going on. I'm wondering - would you give another attempt at uploading your file? You can try dropping it here: ftp://ftp.safe.com/incoming. The Username is Anonymous, and there is no password to upload. Please upload your file to the root folder under "incoming", and *do not create subfolders*, as we won't be able to access them. If you need an FTP client, FileZilla is a lightweight one that I use.
If this also doesn't work, please open a support ticket here where you'll be prompted to attach a file. This way we can investigate this issue in a little more depth.
Thanks,
Nathan
I've started the upload of the file, @NathanAtSafe. It should be complete within an hour or so.
Hi @terraspatial, thanks for uploading your file! I've been playing around with it and I think I've realized why it's not working with our OpenFlight reader. Your file is actually an ESRI GRIDFLOAT format which is not the same kind of .flt file as our .flt reader expects.
At the webpage linked above, under Format Specifications and Useful references at the bottom, you can find information for transforming these files within ArcGIS, or even reading them with a custom program built in Perl. Unfortunately this format is not supported by FME; however, if you can convert it to a format that we do support (such as a .tif or .img file), I believe your CAD transformation should be possible within FME.
This format is known by our raster developers, and is planned to be implemented some time in the future (when exactly is unknown). If you'd like to spark more conversation around the format and you'd really like to see it supported by FME, I suggest posting in our Ideas forum. This is where key Safers with an eye for development and product design come to find ideas for our future releases.
Hope this helps!
Nathan
Hi @terraspatial, thanks for uploading your file! I've been playing around with it and I think I've realized why it's not working with our OpenFlight reader. Your file is actually an ESRI GRIDFLOAT format which is not the same kind of .flt file as our .flt reader expects.
At the webpage linked above, under Format Specifications and Useful references at the bottom, you can find information for transforming these files within ArcGIS, or even reading them with a custom program built in Perl. Unfortunately this format is not supported by FME; however, if you can convert it to a format that we do support (such as a .tif or .img file), I believe your CAD transformation should be possible within FME.
This format is known by our raster developers, and is planned to be implemented some time in the future (when exactly is unknown). If you'd like to spark more conversation around the format and you'd really like to see it supported by FME, I suggest posting in our Ideas forum. This is where key Safers with an eye for development and product design come to find ideas for our future releases.
Hope this helps!
Nathan
Further discussions with a developer have provided a possible workaround. If you have the .hdr (header) file associated with your .flt, a simple edit to that file may allow FME to read the data using a raster reader of another file format. Simply add these two lines to the .hdr file:
pixeltype float
nbits 32Hope this helps!
Nathan
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