Is there a way to get NaN values in GDAL?
I have also tried translating the ENVI format to Geotiff using gdal_translate but also the GeoTiff produces the same array. Good news, not all the values are nan. The GDAL driver (v.1.9.1) works great, and valid data is visible in software that depends on GDAL (e.g., QGIS).
How to read data in Python using GDAL?
The steps howto read data can be found in http://www.gdal.org/gdal_tutorial.html section read data. The routines GDALRasterIO or in python band.ReadRaster at least will do the job in conjunction with the inverse-pixel-to world-transformation given by GDALGetGeoTransform (parameter of the transform) and calcWorldToPixel.
Where is the cplmalloc function in GDAL class?
Here is the message : ERROR 2: CPLMalloc (): Out of memory allocating 65536 bytes. Here is the function, located in the gdalfile class, based on the gdal tutorial. I simplified it in order to be easier to read :
When does GDAL crash when the Appli is running?
When the appli is running, it crash when the array ger arounf 100000 value. Here is the message : ERROR 2: CPLMalloc (): Out of memory allocating 65536 bytes. Here is the function, located in the gdalfile class, based on the gdal tutorial.
How to find Nan not number in Python?
numpy.isnan ( ) method in Python. The numpy.isnan ( ) method is very useful for users to find NaN (Not a Number) value in NumPy array. It returns an array of boolean values in the same shape as of the input data. Returns a True wherever it encounters NaN, False elsewhere. The input can be either scalar or array.
Is there a way to write a binary GeoTIFF including the Nan with colors?
I wanted to display the geotiff with distinct colors so I used the color table. However, color table only supports the Byte or UInt16 datatype, which will convert the NaN to zeros. Is there a way to write a binary geotiff including the NaN with colors?