Questions tagged [rasterization]

The process of turning a vector into its raster equivalent

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Polygon to Raster conversion: Raster shifted ~10m horizontally. How to fix?

I converted a number of polygons into a raster. The cell size is correct but the raster has shifted ~10m horizontally. Is there an issue with my method or is there a tool I can use to fix this?
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1answer
254 views

Rasterize produces wrong result - R

I am trying to rasterize a polygon in R using teh rasterize function but the output is not correct. I am comparing the result with the output produced by the rasterize tool available in QGIS May data ...
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81 views

How to render vector data with muliple geometry types to georefrenced raster

I am using OSM vector data which has been converted into shapefiles. I have polygons representing buildings, landuse and lines representing roads as shown bellow: I want to assign some symbology to ...
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1answer
804 views

Why does fasterize gives different output for multipolygons with and without internally resolved boundaries?

I was thrilled to be clued into the package fasterize, which speeds up the rasterization process in R tremendously. However, I cannot figure out why the fasterize() function outputs two different ...
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2answers
248 views

How to convert multiple shapefiles of different geometries into a georeferenced raster

I have multiple shapefiles extracted from OSM vector data, as shown in the image bellow: How can I render this into a raster of a specified resolution? Is there a way to do that using QGIS or ...
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54 views

Getting TIFF with gdal_rasterize

How can I properly rasterize isolines with an absolute height value in QGIS 3? When using "gdal_rasterize" in the source code I got tiff with "holes", see image below
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22 views

Using Polygon to raster (folder)?

I'm having a problem when trying to convert "Polygon to Raster (folder)" on ArcGIS 10.5 ( SDM Toolbox v2.3). Why are all output rasters much smaller than the input polygon?
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62 views

Rasterizing vector layer (polygon) in ArcGIS Desktop?

I am using ArcGIS Desktop 10.6. While rasterizing my vector layer, lots of noise creates, I remove most of them by applying different cell sizes and the best one is 45. The only problem left is the ...
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1answer
311 views

Rasterizing MULTIPLE vector layers in same "grid" so I can do a regression of sorts across pixel units?

For my research, I have collected a bunch of climatic data from my state in vector form. I also have my raster data, which is about 60 points around the state that have a binary assignment of yes/no. ...
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1answer
2k views

Vector Rasterize error using QGIS?

I am attempting to convert vector files to raster format in QGIS using the Rasterize tool and am receiving the error: ERROR 1: Wrong value for -tr parameter. I have attached an image of the ...
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1answer
174 views

Rasterize the full area of a polygon, not only midpoints, using R [duplicate]

The default function in raster::rasterize is to see if a point is within a polygon and if yes, make a cell. This results in that some of the outer parts of the polygon is not covered by the new raster....
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1answer
92 views

Rasterize point layer with weighted distance

I have a point layer representing wells in a region. i am able to rasterize it and write the well density into the raster as integer, so far so good. What I aim for is to create a raster with values ...
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459 views

Vector Rasterize Error

I am running QGIS 3.4.4 With GRASS 7.4.4 and I get an error while rasterizing a vector layer and I don't know why. The same error pops up while using GDAL->Rasterize(vector to raster) and while using ...
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1answer
332 views

QGIS3 saved Raster layer is "skewed" or aspect ratio is wrong

I'm trying to export two layers based on the current view or "extent": A black and white "raster" derived from some vector data A map layer (Bing, Google, osm, etc) The issue I'm having is that the ...
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2answers
2k views

QGIS 3.4 - Rasterize creates layers with 1.79769e+ 308 min/max values

I have tried searching on here for my issues, read many threads, but to no avail. Essentially, I am trying to convert a line feature to a raster so that I can run proximity on it - because I want to ...
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42 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 - ...
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1answer
138 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 ...
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791 views

QGIS: error in conversion from vector to raster

I've having troubles with the raster conversion from a vector polygonal file. This is the error in the log window: INFO GDAL execution console output ERROR 1: Wrong value for -...
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1answer
3k views

Rasterize (vector to raster) QGIS 3.4

I am trying to rasterize a vector with the QGIS 3.4 rasterize tool (not saga or grass tools). I prefer using this tool cause it is much faster. The values which i would like to burn are found in the "...
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386 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 ...
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1answer
782 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 ...
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1answer
623 views

Inconsistencies in R rasterize polygons, packages raster and sf

I was trying to calculate species richness from IUCN distribution data in R, and I decided to check my results with two different methods, both of which rely on rasterize function from the raster ...
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1answer
95 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 ...
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1answer
269 views

ArcMap "Polyline to Raster" output is empty greyscale raster

I have a polyline shapefile of streams that I am attempting to convert to a raster using the "Polyline to Raster" conversion tool. However, rather than outputting a raster with distinct stream pixels, ...
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1answer
978 views

Creating binary image from FeatureCollection in Google Earth Engine

I am trying to find a solution for this based on ee.FeatureCollection.reduceToImage, but I don't seem to be able to find it. Suppose you have a region of interest such as var ROI = ee.Geometry.Polygon(...
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329 views

Converting single point layer to buffered raster using QGIS?

I'm trying to use the proximity tool to create a distance raster from a single vector point. I found here: Calculating distance to points in QGIS and [d-3] Create Proximity Raster. However, I couldn't ...
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2answers
966 views

How do I assign a unique ID area to an area of a shapefile so I can rasterize it?

I have a shapefile (which can be downloaded from this dropbox link) that I'd like to rasterize so I can merge it with some non-geographic data (I have the code to do this already). Unfortunately, the ...
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1answer
289 views

Parallel rasterizing with GetCover option? [closed]

I'm trying to rasterize a shapefile in parallel using the solution from this post: Processing vector to raster faster with R However, this fails to give the correct answer when the GetCover = T in ...
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160 views

Create raster layer from points with PostGIS

I'm pretty new to this part of GIS; I have a layer of points that represent cell phone towers; with a given distance to simulate coverage, how can I transform that represented coverage into a raster? ...
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4answers
991 views

Create raster in QGIS using categorical attribute

I have been trying to create a grid, or raster, from point data which has a variety of classes (ie, I am trying to grid a categorical attribute). Strangely (to me) using Interpolate (SAGA, cubic ...
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2answers
2k views

Rasterizing vector shapefiles using multiple burn in values

I have a vector shapefile of a geographic area that contains several different object codes that I need to rasterize all as one image. I am working with QGIS, but the Raster>conversion tool seems to ...
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1answer
133 views

Create raster surface from points with barrier

I have a point layer, that represents an elevation in that given point. This I need to create a raster/surface/DEM from, preferably by interpolating by Nearest Neighbour method or some way Liniar ...
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2answers
607 views

DEM from Vector to Raster in GRASS GIS

I am using GRASS GIS 7.4 and I have a DEM as points in a vector format and want to turn it into a raster. I tried using v.to.rast and v.to.rast3, but the elevation is not one of the attributes so am ...
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1answer
555 views

Rasterise polygon layer using QGIS 3.0.3

I am trying to rasterise a simple polygon layer this file using QGIS but cannot get a sensible output. The documentation doesn't appear to have been updated for version 3 yet, and does not match. ...
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1answer
88 views

Get a raster composed of 0s and 1s

Novice with ArcGis, I would like to convert my Polyline dataset to a Raster with only 0s and 1s To this end, I used the Gis command "Polyline to Raster" and set the cell size small enough, so that ...
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50 views

Creation of a raster dataset from polylines

I face an issue with the Raster tool. I have Polylines that I want to convert to Raster. The spatial reference coordinate system is World Mercator (WGS 84). I used the "Convert Polyline to Raster" ...
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1answer
173 views

Rasterizing with target in QGIS?

With QGIS 2.18, the "rasterize" command offered the possibility of defining a raster target. I used this option to "update" a existing raster with the value of a polygon layer. I'm not able anymore ...
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1answer
372 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 ...
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0answers
85 views

QGIS: Fill shapefile vectors with grayscale based on elevation

I am very new to this and feel like this is probably an easy answer, but after days of searching this forum I still am unsuccessful. I have shapefile data with elevation and I want to create a raster ...
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1answer
31 views

Specifying XY extent when rasterizing using ArcGIS Desktop?

I'm making some maps for landscape genetics in ArcGIS Desktop 10.3 - raster maps of various variables (habitat type, river network, road network etc). I'm having trouble rasterizing a polyline road ...
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1answer
167 views

Rasterize shapefile to overlay on map uisng QGIS (or any other suggestion)

I'm developing an app to display a map in QGIS. The map data is from Bing Map servers. I want to overlay a shapefile on the map. I want the same visual display we see on QGIS. Like this So my idea is ...
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0answers
235 views

Selecting pixels in raster using polygon selection tool in QGIS?

I want to reclassify landcover image manually with respect to online imagery. I am looking for a software/plugin/script to manually select raster pixels using polygon selection tool and could be able ...
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0answers
189 views

Python Rasterize Sum Variable

I'm trying to reproduce the R rasterize function in python to streamline my code and am having issues with summing multiple points in the raster. Essentially I want to sum the value of my variable for ...
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1answer
221 views

LecoS stalling - table not being generated

I'm trying to collect data along highway segments in northern Alberta. I took vector data from ABMI (http://www.abmi.ca/home.html) and rasterized this to work within LecoS. I had success in early ...
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2answers
1k views

Usage of interpolation methods with DEMs: Linear vs. natural neighbors

Using the ArcGIS tool "TIN to Raster" (3D Analyst Tools --> Conversion --> From TIN) to work on my Digital Elevation Model I was wondering about the interpolation methods. I can choose either or: ...
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0answers
91 views

Rasterize causes black background, need white to match BioClim data

I am using the rasterize tool to convert a polygon layer into a .asc or .bil raster layer. As it is a UK study, there is a lot of sea that when rasterized, turns black. I need it to be white to match ...
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1answer
482 views

Generate tiles from Leaflet polygons

I have a set of shapes drawn in Leaflet (using Leaflet.draw). I need to rasterize these into a tileset and export it because I need to use the images elsewhere. My initial idea was to go through ...
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1answer
224 views

Raster with wrong extents when using Polygon to Raster

I am trying to use the "Polygon to Raster" tool on a building extents polygon file to create a raster with the exact extents and cell size as an existing flood depth raster. Even though I have added ...
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1answer
446 views

Rasterize vector to presence-absence raster incorrect in R

I want to create a presence-absence raster out of a shapefile (vector) with the rasterize command of the R-package in R. Until now I only get wrong results. The raster should just distinguish ...
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2answers
318 views

QGIS 3.2 - Poor conversion from high-resolution vector to raster

I have a shapefile with polygons with several sizes, and I want to convert it to a raster with 30mx30m pixel resolution. Although I was able to obtain the raster with the pretended resolution (using ...

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