All Questions
Tagged with rasterization gdal
81 questions
0
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0
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31
views
How to use gdal3.js for rasterization
I am trying to use gdal3.js to rasterize GeoJSON to GeoTIFF format in a vanilla JS web app but it is throwing the following error:
Uncaught (in promise) TypeError: t.arrayBuffer is not a function
...
2
votes
2
answers
48
views
gdal_rasterize giving different pixel values
I want to count the number of polygons (in this case, protected areas) within a raster cell grid of a specific resolution. To do so, I have tried different approaches in R but, due to the database ...
- 323
0
votes
2
answers
91
views
Does GDAL rasterize used with polygons use the centre or top left of pixel?
I have found conflicting information on whether GDAL rasterize in practice uses the centre or top left of pixel when converting a set of polygons to a raster. Some posts have documented that the top ...
- 1
2
votes
0
answers
37
views
QGIS: Problem to rasterize track
I'm not able to rasterize a GPS plot in QGIS (layer Chemins in red which is interpolation of GPS points) , the output is empty even though it works when I tried with a new simple layer with two line (...
- 21
0
votes
1
answer
129
views
How to make multiclass color mask based on polygons (osgeo.gdal python)?
I know how to make binary 1-band mask in python with
osgeo.gdal.Rasterize(src, shp_file_name, burnValues=[1])
But what if I have several classes and want to make 3-band mask with different colors for ...
1
vote
2
answers
77
views
Deriving a new raster attribute layer from a polygon layer
I am trying to discern how I can accomplish the following at the command line with GDAL and could use some guidance. I have a GeoTIFF containing data from the National Land Cover Database and I would ...
- 171
2
votes
2
answers
514
views
Set snap raster in GDAL(C#) rasterize functions
I want to set snap raster for the function rasterize of GDAL, but I can not found. The options parameters are as the following code (C#). What is wrong?
rasterizeOptions = new string[] { "...
- 21
1
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0
answers
30
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Sometimes gdal.RasterizeLayer makes geometry invisible
Honestly I don't know how to explain what's going on correctly but I'll try.
I have a table in postgres that I trying to rasterize, and I want to make a separate raster for every feature.
Everything ...
- 2,042
0
votes
1
answer
309
views
Compress output file and set default value when rasterizing ogr layer with GDAL
I am trying to rasterize a polygon layer currently as a feature class in a file geodatabase using OGR/GDAL (Python script). So far I have managed to do the rasterization with the output tif file ...
- 1,256
2
votes
3
answers
1k
views
Rasterize and sum polygons in Python
I have the following shapefile of NYC with all 5 Boroughs as separate polygons, called Boroughs.shp. Data Source (NYC OpenData): https://data.cityofnewyork.us/City-Government/Borough-Boundaries/tqmj-...
2
votes
1
answer
1k
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Summing all rasters in folder using Python
I have a folder containing many raster files (.tif). I want to sum all of the rasters in this folder into a single output raster using Python in Jupyter Notebook. I have been able to use GDAL command ...
2
votes
1
answer
3k
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How to rasterize polygons using GDAL commands in python?
I have the following polygons shapefile consisting of polygons of the five boroughs of New York City from "NYC Open Data", linked here: https://data.cityofnewyork.us/City-Government/Borough-...
3
votes
4
answers
3k
views
Rasterizing polygons in shapefile using GDAL
I have the following polygons shapefile consisting of polygons of the five boroughs of New York City from "NYC Open Data", linked here:
https://data.cityofnewyork.us/City-Government/Borough-...
2
votes
1
answer
196
views
Converting GDAL command line statements to Python
I am trying to carry out the task of sending each row/polygon from a single shapefile to its own unique raster. I so far use GDAL commands through the OSGeo4W Shell like so after navigating to my ...
1
vote
0
answers
153
views
Rasterizing vector file in EPSG:4326 using GDAL/OGR in Jupyter notebook
I was trying to rasterize the vector file in Python.
I used this code:
gdal.Grid("trial2.tif", "merged2018-19.gpkg", zfield="h_li", algorithm="nearest")
(the ...
0
votes
0
answers
68
views
Trouble with converting polygons (shapefiles) to raster on QGIS
I have a shapefile layer
And I wish to convert this to a raster:
This layer was geocoded over RADARSAT SAR images, example picture below:
I go to Rasterize (Vector to Raster) using GDAL:
I input the ...
- 29
2
votes
1
answer
720
views
Python GDAL RasterizeLayer: Select attribute value in case of shape overlap
I want to rasterize a MultiPolygon Shapefile layer in Python and use values of one column to write to the raster. However, I cannot preclude that features of the Shapefile overlap.
Is there a way to ...
- 293
2
votes
1
answer
939
views
Anti-aliased rasterization of vectors in QGIS?
I have some polygons that I want to rasterize, but in a fairly low-resolution grid (cell size 250x250m). The raster values of the area inside the polygons should normally have the same value (100), ...
- 63
2
votes
0
answers
414
views
GDAL rasterizelayer function 's additive rasterizing option (add=True) is not working, what am I doing wrong?
I am trying to rasterize a set of polygons with integer features. Since I am very new using raster data as an initial step I am rasterizing the the polygon centroids first.
In the output array I want ...
4
votes
1
answer
1k
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GDAL Rasterize with "where" option in Python
I've got a shapefile with set of points with a column "test_class" of String type in the attribute table.
I need to rasterize these points with setting pixel's value for each class and ...
- 43
1
vote
1
answer
967
views
Executing GDALRasterize() function wtih options
I am using GDAL 2.1.0, in both Windows and Linux environments.
I want to programmatically rasterize a shapefile in my C++ app.
gdal_rasterize
I can successfully execute the stand-alone gdal_rasterize ...
- 325
1
vote
1
answer
600
views
Burning zeros instead of nodata in GDAL rasterize
When rasterizing a vector layer I would like to achieve an output that contains 1 for areas covered by the shape and 0 for areas not covered. So far GDAL always converts areas that are not covered to ...
- 891
0
votes
0
answers
67
views
Rasterize rotated shapefile
I want to rasterize a shapefile (I don't mind whether to use QGIS or python) but I want to rotate my shapefile first and than have my raster aligned to this rotation.
So lets say I rotate my shapefile ...
- 101
1
vote
0
answers
231
views
Is there a way to rasterize polygon with hatch pattern with GDAL CLI or in a Python script?
I am trying to automate some work previously done in QGIS. Target platform is AWS Lambda so there is no way to use QGIS or any other standalone GIS-specific application.
QGIS provide a way to draw ...
- 111
2
votes
1
answer
3k
views
How to burn values from a shapefile into raster with gdal.Rasterize?
I have this code to rasterise a point shapefile into raster TIFF.
vector_ds = ogr.Open('stations.shp')
shp_layer = vector_ds.GetLayer()
shape_file = 'stations.shp'
output_raster = os.getcwd()+'/...
1
vote
1
answer
223
views
Rasterize doesn't preserves the class attributes original values
I'm using this GDAL based rasterize function in python in order to create raster from shapefile based on numerical class values.
I am using:
function of GDALMy class attributes are very long numbers :
...
- 2,215
5
votes
2
answers
838
views
How to choose cell assignment method in GDAL/rasterio rasterize functions?
I have a big (2GB) landcover shapefile I want to convert to a GeoTIFF file. For this purpose, I am using the gdal.Rasterize() function with the following options:
rasterize_options = gdal....
- 6,038
1
vote
1
answer
2k
views
Rasterize polygons using gdal/ogr python API
My understanding so far is that 'gdal' is used for raster data and 'ogr' for vector data. Given this I have been trying to rasterize a polygon data set (output raster metadata is given by a raster ...
- 1,256
0
votes
0
answers
928
views
gdal_rasterize multiple attributes to multiple bands
I have a shapefile consisting of polygon geometries, each row/geometry associated with multiple attributes. I want to generate a raster file with multiple bands, where each band will have a different ...
- 1
1
vote
1
answer
583
views
After converting vector data to raster with GDAL in Python, I get completely black TIFF file
I am trying to convert data from vector to raster with GDAL rasterize using by Python. I want to output raster format as TIFF, but the result TIFF opens completely black.
I am writing code benefit ...
- 21
1
vote
0
answers
1k
views
Converting Vector (.shp) to Raster (.tiff) using Python GDAL library
I'm trying to convert a vector shapefile to a raster tiff file. I adapted the source code from Python Geospatial Analysis Cookbook by Michael Diener. The code works for line and polygon shapefiles but ...
- 103
6
votes
1
answer
343
views
Rasterize/Filter with Burn and Weight variables in QGIS
Using QGIS 3.10.1, I am attempting to rasterize some demographic polygons, and then apply a filter (Gaussian) to create a smooth/graduated surface. This works fine for some of my values (e.g. total ...
- 628
7
votes
2
answers
2k
views
Using GDAL tool rasterize with QGIS so that points represent center of grid
I want to convert point data into a grid and used the gdal tool rasterize. The tool works but unfortunately the result looks like this.
The converted point does not represent the center of the grid ...
- 2,691
2
votes
0
answers
1k
views
Rasterize GeoJSON or Shapely Geometry?
I am trying to rasterize a GeoJSON or shapely geometry but it does not rasterize all the geometry (some of it is not in the TIFF-file).
I tried gdal_rasterize -burn 255 -burn 0 -burn 0 -ts 4950 4900 ...
- 31
4
votes
2
answers
4k
views
How to rasterize individual feature (polygon) from shapefile using GDAL/OGR in Python?
I would like to convert the individual records (polygons/features) of a shapefile to raster using GDAL/OGR. Here is the example shape and the mask raster. Rasterizing the full layer with all records (...
- 173
2
votes
0
answers
195
views
Rasterize a geometry using gdal.RasterizeLayer()
I am writing a processing script using QGIS 3.4. I need to rasterize a polygon using gdal.RasterizeLayer. The problem is the polygon is a list of QgsGeometry objects and not a layer.
n = (2*radiusInt)...
- 587
0
votes
0
answers
48
views
Rasterizing a point layer without using an attribute field
I am following the "QGIS by Example" text book and a task requires that a point layer is rasterized using the following GDAL code
gdal_rasterize -l layer name -burn 1 -a_nodata 0 -te coordinates - ...
- 421
0
votes
1
answer
201
views
How to perform shapefile/raster integrated functions
Description:
I'm having trouble with some Raster/Shapefile manipulation. My problem is that I have a shapefile that I would like to use to update my rastervalues with. The shapefile has multiple ...
- 19
1
vote
0
answers
719
views
Rasterizing shapefile with rasterio and gdal gives all cells 0 values [closed]
I am trying to rasterize my shapefile (20 polygons) with rasterio and fiona and turn the new raster into a mask for clipping.
I need to rasterize my all polygons in my shapefile and turn on mask ...
2
votes
1
answer
2k
views
Convert a vector file to an RGB raster using gdal_rasterize without filling polygons
I am trying to convert a vector file that includes polygons to an RGB raster using gdal_rasterize without filling the polygons. Is there a way to do this?
For example, I use the following command to ...
- 441
0
votes
1
answer
166
views
Raster from a set of Points keeping the resolution
I have a database with some points covering the earth surface and I want to build a raster (GeoTIFF using gdal_rasterize) which mantains the same spatial resolution of the input points (so without ...
- 3
0
votes
1
answer
412
views
Polygon rasterization in QGIS 3.2
I want to elevate a certain area of terrain by 126 meters. I've created a polygonal shapefile layer with a decimal field titled "elevation" set to 126. My plan was to rasterize the polygon using GDAL ...
1
vote
1
answer
1k
views
Gdal RasterizeLayer Python
I'm attempting to rasterize a layer of a raster by using the different features inside a shapefile(In this case the different features are lines).
The problem I am running into is that ...
- 967
0
votes
0
answers
825
views
Set order of polygons to burn into a raster with GDAL?
I have intersecting polygons with an attribute that I'd like to burn into a raster with GDAL. In this simple example, the attribute Value from three polygons in one shapefile is to be transferred to a ...
- 398
0
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0
answers
288
views
gdal rasterizelayer fails
I have been trying to rasterize a shapefile with polygons in it. At some point it worked but then something changed and I do not know what happened. In the code below (a bit messy, I apologize) I ...
- 375
2
votes
1
answer
477
views
gdal rasterizelayer constant value
How do you rasterize a polygon layer into a raster so all cells covered by polygons (i.e. not NoData) will be set to a constant value?
I do this to set cell according to attribute values:
gdal....
- 31
1
vote
1
answer
421
views
Adding a field with a unique value to vector layer in kml file (need this to burn values with gdal.RasterizeLayer)
I would like to create a field ID in my kml file, with a unique value so that I can use gdal.RasterizeLayer to burn the value to an image like this:
gdal.RasterizeLayer(target_ds, [1], source_layer, ...
- 345
4
votes
1
answer
863
views
Rasterizing multiple ogr vectors from different files using the GDAL python module?
I'm trying to create a single raster from several shapefiles. I think what I need to do is to merge many layers into a single 'MEM' object. Then re-project this object to a different coordinate system....
- 233
4
votes
3
answers
3k
views
Export styled vector layers as TIFF raster?
I have contours that need to go on a TIFF file. They are both georeferenced and in the correct location. I am currently trying to use QGIS to bring them in and change the linetype/lineweight of the ...
- 942
1
vote
1
answer
2k
views
Gdal 2.1.3 Rasterize "kml not recognized as a supported file format"
I am really new to gdal and have a real simple kml file. I tested this kml file in google earth and there was no problem displaying it. But when I try to rasterize it I get the following error:
"...
- 11