gdal

I need help with GDAL. The string value with Chinese symbols is not readed/saved correctly (C#). For SAVING grid value we using: private static extern void GDALRATSetValueAsString(IntPtr handle, int row, int field, [In][MarshalAs(UnmanagedType.LPStr)] string value); method (c#) to save string value, it seems that this method saves string as ANSI string . For READING: private static extern IntPtr GDALRATGetValueAsString(IntPtr handle, int row, int field); In. Example my string "银行Flamwood C2" There is for methods to get value by pointer (use in GDALRATGetValueAsString metho): var pointer =

I am trying to get GeoDjango running on ubuntu and have hit a problem with GDAL. I have downloaded and installed GDAL without problem. I had to add the following line to my project settings: GDAL_LIBRARY_PATH = '/usr/local/lib/libgdal.so.1.15.1' When I check in the shell all is good: In [1]: from django.contrib.gis import gdal In [2]: gdal.HAS_GDAL Out[2]: True However when I try and run ogrinfo as in the official tutorial I get the following error: $ ogrinfo world/data/TM_WORLD_BORDERS-0.3.shp ogrinfo: error while loading shared libraries: libgdal.so.1: cannot open shared object file: No such

I have a Java project that uses GDAL bindings on Win7. The problem is that due to the nature of the bindings, it requires setting environment variables to work, specially PATH , GDAL_DATA , GDAL_DRIVER_PATH , and PROJ_LIB . I mean they're easy enough for me to create and point to the GDAL directory. However if I ever want to distribute this, this is going to be an unwieldy step for the average user. I need some way to configure the GDAL bindings in a way that the user can copy the program wherever they like, which has the jar and GDAL libraries, and the bootstrap code will automatically set

I have a t2.micro Amazon Linux instance running. Python 2.7.12 is pre-installed already. I would like to install GDAL with the Python. I have got gcc c++ and numpy installed. None of the following commands worked for me: sudo yum install gdal-devel sudo yum install gdal sudo yum install python-gdal They all resulted in a following message saying. No package {PACKAGE_NAME} available. Error: Nothing to do I cannot run apt-get on a Amazon Linux instance. Also none of the relevant SO posts worked for me either. I also ran sudo easy_install GDAL and this gave a MemoryError as below: Searching for

I'm utilizing python GDAL to write a raster data into a .tif file. Here's the code: import numpy, sys from osgeo import gdal, utils from osgeo.gdalconst import * # register all of the GDAL drivers gdal.AllRegister() # open the image inDs = gdal.Open("C:\\Documents and Settings\\patrick\\Desktop\\tiff elevation\\EBK1KM\\color_a1.tif",GDT_UInt16) if inDs is None: print "couldn't open input dataset" sys.exit(1) else: print "opening was successful!" cols = inDs.RasterXSize rows = inDs.RasterYSize bands = inDs.RasterCount driver = inDs.GetDriver() driver.Create("C:\\Documents and Settings\\patrick\

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以下实验基于python==3.6、opencv-python==4.1.0.25、imutils==0.5.2 图片的读取 cv2.imread 该方法第一个参数为文件名filename（文件路径+文件名） 第二个为读取方式flags，可选参数 IMREAD_ANYCOLOR = 4 IMREAD_ANYDEPTH = 2 IMREAD_COLOR = 1 IMREAD_GRAYSCALE = 0 IMREAD_IGNORE_ORIENTATION = 128 IMREAD_LOAD_GDAL = 8 IMREAD_REDUCED_COLOR_2 = 17 IMREAD_REDUCED_COLOR_4 = 33 IMREAD_REDUCED_COLOR_8 = 65 IMREAD_REDUCED_GRAYSCALE_2 = 16 IMREAD_REDUCED_GRAYSCALE_4 = 32 IMREAD_REDUCED_GRAYSCALE_8 = 64 IMREAD_UNCHANGED = -1 前4中读取方式的shape和显示效果如下 可见 IMREAD_GRAYSCALE 和 IMREAD_ANYDEPTH 都只读取了一层灰度图像 而 IMREAD_COLOR 和 IMREAD_ANYCOLOR 读取了3层彩色图像 因为这里只测试了jpeg图片