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Sets texture down-sampling factor of a layer.
[Visual Basic .NET] Public Sub set_TextureDownsamplingFactor ( _ ByVal pLayer As ILayer, _ ByVal A_2 As Double _ )
[C#] public void set_TextureDownsamplingFactor ( ILayer pLayer, double A_2 );
[C++]
HRESULT put_TextureDownsamplingFactor(
ILayer* pLayer,
double
);
[C++]
Parameters pLayer [in]
pLayer is a parameter of type ILayer* [in]
is a parameter of type double
The value ranges from 0.0 to 10.0, with 1.0 applying no down-sampling and 10.0 maximum down-sampling. The value set by the user will be snapped to the next lower power of 2 because OpenGL can only take a power of 2 number for the texture dimension. Generally, the larger the number, the more texture down-sampling, meaning coarser texture resolution, hence the better navigation performance, due to less memory consumption by textures.