请教一个osgEearh中的问题，谢谢指点！！

warding

可能是小问题，但对我来说是大问题。。。尴尬
我编译osgEarth完成，没有提示错误
运行自带的例子
其中osgearth_features.exe运行只有蓝色背景
控制台提示错误（部分）：
/////////////////////////////////////////////////////////////////////////////
ERROR 4: `..\data\world.tif' does not exist in the file system,
and is not recognised as a supported dataset name.
[osgEarth]* GDAL: Failed to open dataset ..\data\world.tif
[osgEarth]  Could not initialize TileSource for layer basemap
ERROR 4: `..\data\world.tif' does not exist in the file system,
and is not recognised as a supported dataset name.
[osgEarth]* GDAL: Failed to open dataset ..\data\world.tif
[osgEarth]  Could not initialize TileSource for layer basemap
[osgEarth]* Could not get a valid profile for Layer basemap
[osgEarth]* OGR: failed to open dataset at ../data/world.shp
[osgEarth]  [osgEarth::MapEngine] Could not create any imagery or heightfields f
or 1_0_0.  Not building tile
ERROR 4: `..\data\world.tif' does not exist in the file system,
and is not recognised as a supported dataset name.
////////////////////////////////////////////////////////////////////////////////////////

我以为是路径问题，把例子单独跟踪运行了一下
其中

1. 
   
2. #include <osgEarthDrivers/gdal/GDALOptions>
   
3. #include <osgEarthDrivers/feature_ogr/OGRFeatureOptions>
   
4. #include <osgEarthDrivers/agglite/AGGLiteOptions>
   
5. using namespace osgEarth;
   
6. using namespace osgEarth::Features;
   
7. using namespace osgEarth:rivers;
   
8. using namespace osgEarth::Symbology;
   
9. using namespace osgEarthUtil;
   
10. //
    
11. // NOTE: run this sample from the repo/tests directory.
    
12. //
    
13. int main(int argc, char** argv)
    
14. {
    
15.     osg::ArgumentParser arguments(&argc,argv);
    
16.     osgViewer::Viewer viewer(arguments);
    
17.     // Start by creating the map:
    
18.     Map* map = new Map();
    
19.     // Start with a basemap imagery layer; we'll be using the GDAL driver
    
20.     // to load a local GeoTIFF file:
    
21.     GDALOptions* basemapOpt = new GDALOptions();
    
22.     basemapOpt->url() = "../data/world.tif";
    
23.     map->addMapLayer( new ImageMapLayer( "basemap", basemapOpt ) );
    
24.     // Next we add a feature layer. First configure a feature driver to
    
25.     // load the vectors from a shapefile:
    
26.     OGRFeatureOptions* featureOpt = new OGRFeatureOptions();
    
27.     featureOpt->url() = "../data/world.shp";
    
28. .................
    
29. }
    
30. 
    

复制代码

跟踪到GDALOptions* basemapOpt = new GDALOptions();出问题

1. 
   
2.         GDALOptions( const PluginOptions* opt =0L ) : TileSourceOptions( opt ),
   
3.             _interpolation( INTERP_AVERAGE )
   
4.         {
   
5.             driver() = "gdal";
   
6.             config().getIfSet( "url", _url );
   
7.             config().getIfSet( "extensions", _extensions );
   
8.             std::string in = config().value( "interpolation" );
   
9.             if ( in == "nearest" ) _interpolation = osgEarth::INTERP_NEAREST;
   
10.             else if ( in == "average" ) _interpolation = osgEarth::INTERP_AVERAGE;
    
11.             else if ( in == "bilinear" ) _interpolation = osgEarth::INTERP_BILINEAR;
    
12.             config().getIfSet( "max_data_level", _maxDataLevel);
    
13.         }
    

复制代码

第一句driver() = "gdal";就出错~~
不管怎么解决，感谢您看完了。。见笑

array

ERROR 4: `..\data\world.tif' does not exist in the file system

从第一行看来，很明显就是路径错误

warding

2# array
感谢array的回复
出错的代码位置在设置路径的语句之前。
可能确实也存在路径不对的问题，但我修改过路径，仍然出同样的错！
跟踪运行到

LeadUp1:
        and     edx,ecx         ;U - trailing byte count
        mov     al,[esi]        ;V - get first byte from source
        mov     [edi],al        ;U - write second byte to destination
        mov     al,[esi+1]      ;V - get second byte from source
        mov     [edi+1],al      ;U - write second byte to destination
        mov     al,[esi+2]      ;V - get third byte from source

弹出
Unhandled exception at 0x0049edac (msvcr90d.dll) in earth.exe: 0xC0000005: Access violation writing location 0xcdcdcdcd.
信息框

array

我认为您在跟踪代码之前，应该首先解决找不到tif文件这个问题

warding

谢谢array