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Questions tagged [gdal.net]

A .Net wrapper on top of GDAL

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GDAL Raster: How to obtain the cell ( and also the position) where maximum occurs?

I can obtain the maximum/minimum value of a raster via the ComputeRasterMinMax code: using (var ds = Gdal.Open(tiffFile, Access.GA_ReadOnly)) { var nCol = ds.RasterXSize; var nRow = ds....
1
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0answers
19 views

How to properly reorder the raster data from bottom up to top down?

When creating a raster I set the lower-left x/y values, and asc file has the following "header": ncols 1731 nrows 1863 xllcorner 17548488.944545675069 yllcorner -8069349....
2
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0answers
118 views

Load support data set from NetCDF file (Tropomi Sentinel 5P) with GDAL.NET

Been trying to load two data sets from a Tropomi NetCDF file (N2O measurements). I can manage to load some data sets, which are right under PRODUCT, but not others which are under PRODUCT/SUPPORT_DATA/...
0
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1answer
161 views

Converting self-intersecting polygons into distinct polygons

How to convert self-intersecting polygons into distinctive, well behaving polygons? My polygon inputs consist of self-intersecting polygons, which fails the st_isvalid test, ie: the below statement ...
0
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2answers
122 views

How to construct dataset in memory that is built from CSV and VRT file?

I'm using GDAL .Net wrapper, GDAL.Net. I have a list of scattered points ( in X,Y,Z coordinates) that I would like to rasterized via the function GDAL_GRID( or via the underlying .Net wrapper, Gdal....
0
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1answer
101 views

How to use GDAL.Grid() with vrt file in C++/ C#?

Referring to the GDAL_GRID C++ documentation here. gdal_grid [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/ CInt16/CInt32/CFloat32/CFloat64}] [-of format] [-co "NAME=VALUE"]...
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2answers
93 views

Getting grid points for DEM purpose that is bounded by surveyor points?

I have a list of surveyor points, and I will need to create a DEM model out of it ( in geotiff format if possible for space consideration, if not, then in ASCII grid format). I need the DEM for ...