DieSlower
commented
10 months ago I have more info on this.... It seems that the main DHT file is still not being recognized (D:\Development\DNCs\DNC01ED34\DNC01\DHT), but, I did figure out that there is a path problem with how QGIS passes folder names on windows. Path problem is not everything unfortunately.
If you try to open an individual chart out of the set by passing gltp:/vrf/D:\Development\DNCs\DNC01ED34\DNC01\A0112483 to the "Add Layer" window I get an error, but if I try to open it with gltp:/vrf/D:/Development/DNCs/DNC01ED34/DNC01/A0112483 I do get a list of layers in the chart. Unfortunately after selection any of the layers and attempting to open, I get a crash. Crash report attached:
User Feedback
I was attempting to load a VPF layer. QGIS detected the layer names in the files, loaded the correct names, and crashed.
I opened the layer by passing the following path to the "Create Vector Layer" window: gltp:/vrf/D:/Development/DNCs/DNC01ED34/DNC01/A0112483
Report Details
Python Stack Trace
Windows fatal exception: access violation
Thread 0x0000056c (most recent call first):
<no Python frame>Stack Trace
strlen :
dyn_CreateServer :
svr_CreateServer :
cln_CreateClient :
CPLODBCDriverInstaller::RemoveDriver :
CPLODBCDriverInstaller::RemoveDriver :
CPLODBCDriverInstaller::RemoveDriver :
CPLODBCDriverInstaller::RemoveDriver :
QgsOgrProviderUtils::GDALOpenWrapper :
QgsSQLiteExpressionCompiler::operator= :
QgsSQLiteExpressionCompiler::operator= :
QgsSQLiteExpressionCompiler::operator= :
QgsOgrProviderUtils::wildcards :
QgsSQLiteExpressionCompiler::operator= :
QgsVectorLayerFeatureIterator::QgsVectorLayerFeatureIterator :
QgsVectorLayerFeatureSource::getFeatures :
QgsVectorLayerProfileResults::visitFeaturesInRange :
QgsVectorLayerProfileResults::visitFeaturesInRange :
QgsMapRendererParallelJob::renderLayerStatic :
QgsProfilePlotRenderer::replaceSourceInternal :
QgsMapRendererParallelJob::renderingFinished :
QgsMapRendererParallelJob::takeLabelingResults :
QtConcurrent::ThreadEngineBase::run :
QThreadPoolPrivate::reset :
QThread::start :
BaseThreadInitThunk :
RtlUserThreadStart :QGIS Info QGIS Version: 3.32.3-Lima QGIS code revision: 67d46100b5 Compiled against Qt: 5.15.3 Running against Qt: 5.15.3 Compiled against GDAL: 3.7.2 Running against GDAL: 3.7.2
System Info CPU Type: x86_64 Kernel Type: winnt Kernel Version: 10.0.19045
What is the bug or the crash?
QGIS is not recognizing VPF/VMAP/DNC formats
It should be loading it through GDAL (OGR_OGDI -vector- (ro): OGDI Vectors (VPF, VMAP, DCW)) which is present on the system when QGIS is installed.
Steps to reproduce the issue
Download a map from https://dnc.nga.mil/dncp/DNC/library.php?c=Z17
try to open the file with QGIS by opening new data or pulling the files into the QGIS window. The downloaded zip file can be pulled in, or it can be unzipped and a DHT or LHT file can serve as an entry. This works fine with other software like Global Mapper.
Versions
3.32.3-Lima
Supported QGIS version
New profile
Additional context
If I run:
C:\Program Files\QGIS 3.32.3\bin>ogrinfo --formats I do see that it is supported:
OGR_OGDI -vector- (ro): OGDI Vectors (VPF, VMAP, DCW) Unfortunately when I pull in the Zip, LHT or the DHT file into QGIS I get an error: "Invalid Data Source: D:\Development\DNCs\DNC01ED34\DNC01\A0112483\LHT is not a valid or recognized data source."