The process of turning a vector into its raster equivalent

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0answers
17 views

Polygon to Raster: Cells with multiple values

I'm trying to use R to rasterize a number of shapefiles and I'm having trouble dealing with cells on the edge of shapes, in other words the if a cell is partially covered by an NA value and partially ...
4
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2answers
5k views

Converting point grid to raster using GRASS?

If I load the original .csv file, I then have a map of the African continent represented by 14069 data points covering it at 40x40km resolution. Each data point shows solar radiation means across the ...
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1answer
220 views

Rasterization of point vector in QGis: how to align the resulting raster to an existing one?

I have a point shapefile, with no associated .prj file, that I have to rasterize. Each point should be transformed into a pixel of 30x30 size aligned to the pixels of a Landsat image (the point file ...
2
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2answers
171 views

QGIS Layer Style - Adding intensity/color if elements overlay

I have a layer with thousands of points. I have been asked to represent this layer in way that can be easily seen the level of concentration of points in the layer. So when there is much point ...
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2answers
43 views

QGIS Convert vector classification map into raster

I tried to convert vector classification into raster file for accuracy analysis following these suggestions My vector data is like this: However, none works The first one, interpolation, resulting ...
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2answers
41 views

Converting dimension feature into image using ArcObjects?

I have a task to convert dimension feature into image with ArcObjects. I need to get real image that I see in ArcMap (with right size and spatial reference, of course) instead of turning feature ...
2
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0answers
35 views

How to use GDAL RasterizeLayer (python binding) -where flag

I am trying to use GDAL RasterizeLayer python binding, but I can not find a way to use the -where flag. The 'pure' GDAL command I am trying to run is: gdal_rasterize -b 1 -burn 0.00001 -where ...
2
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2answers
77 views

Export vector layer to raster in QGIS

first of all I am not experienced in GIS. I've tried if a few examples/tutorials similar to my problem to see if they could be applied, but yet nothing works. Problem: I have a Shape file imported ...
5
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5answers
1k views

Convert line shapefile to raster, value=total length of lines within cell

I have a line shapefile representing a road network. I wish to rasterize this data, with the resulting values in the raster showing the total length of the lines that fall within the raster cell. The ...
1
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0answers
38 views

How to correctly rasterize a polygon which crosses 180E longitude?

I want to rasterize a polygon wich crosses 180E lon with gdal_rasterize. The polygon is in the WGS84 projection. I used the following command: gdal_rasterize -burn 1 -of GTiff -ot Byte -ts 1500 ...
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2answers
141 views

Rasterizing polygons with the function “gdal_rasterize” in R

I'm using the function gdal_rasterize in R (package gdalUtils) to convert a polygon shapefile into a raster. Here is my code: r.test <- gdal_rasterize(src_datasource="df.shp", ...
5
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1answer
667 views

Turning multiple vector layers into one raster in ArcGIS Desktop?

I want to make a raster out of the multitier view I have in ArcMap 9.3.1 . The layers in my ArcMap come from several datasets. I know there is a 'Feature to Raster' tool, but it converts one ...
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1answer
69 views

Rasterize vector file using gdal.RasterizeLayer() without losing attribute information in python

Is it possible to rasterize a vector file with gdal.RasterizeLayer(), saving attribute as Raster value ? Like gdal_rasterize can do with : gdal_rasterize -a attribute -ts rasterXsize rasterYsize -l ...
1
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1answer
35 views

Arguments error when running LineDensity scripts in arcpy

I'm trying to use LineDensity tool on polyline features. The shapefile is small and includes some invalid geometries. The code I use is an adaptation of an ArcGIS Help script. Here is my code: ...
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0answers
28 views

Polygon to Raster tool while keeping less than maximum values

I'm trying to convert a very large, detailed polygon to a raster with a coarser resolution in ArcGIS 10.1 using the polygon to raster tool. The value field is a percentage and the cellsize must be the ...
11
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4answers
8k views

Burning stream network into DEM layer using ArcGIS Desktop?

I am working on a DEM that in an area where there is little relief. I would like to 'burn' the river network into the DEM so I can calculate flow accumulation and flow length accurately. I am ...
0
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0answers
11 views

3ds city model to Digital Surface Model

I've got building and terrain models of a city in 3DS format. I'd like to transform these models to tiff images in order to create some kind of digital surface model (pixel value = height or altitude) ...
2
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1answer
319 views

Choosing Point to Raster vs Feature to Raster in ArcGIS for Desktop?

I am converting point vector data to a raster dataset using nearest neighbor. I am using arcgis 10.2. The first step is to use the conversion toolbox, but there are two possible options: Point to ...
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0answers
21 views

Creating a contiguous raster stack from different sources (vectors and DTM bands)

This is a conceptual question I've been trying to implement for a while, and not being very good at raster/data processing or python I'd like to hear best practices in dealing with an extent such as ...
2
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0answers
48 views

Create a raster dataset containing the number of returns from a las file? [duplicate]

I already created DEMs, DTMs, DSMs from a LiDAR (LAS) file with a little help from the internet. However, right now I'm kind of stuck in my research. I want to create a raster file which contains ...
0
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1answer
112 views

R: problem with rasterize getCover - not working

Are there any known bugs with the getCover argument in the rasterize function? (R package 'raster'). or has anyone got a fix for the following: I have a series of landcover polygons, here is a small ...
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2answers
343 views

GDAL (or other open-source) equivalent of Arc's Point To Raster Tool

I'm trying to convert a python script that relies on arcpy into one that only relies on open source modules, but I'm having some trouble. The bulk of my processing lies in one Arc tool "Point to ...
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1answer
35 views

Problems when trying to Convert polygon to raster

Well, I'm having a problem when trying to convert polygon to raster on ArcGis 10.0. Here is the thing: Ther output raster is much smaller than the input polygon, and the coordinate system is diferent ...
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2answers
83 views

What error am I doing when rendering OpenStreetMap roads and buildings in Minecraft?

I'm trying to create a Minecraft map of the Ernst Reuter Platz in Berlin. For this purpose, I'm using OpenStreetMap data. This is what the place looks like on a 2D map: When I render the roads and ...
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0answers
153 views

How to Convert from Point to Continuous Raster in ArcGIS 10.1?

I have a vector point dataset that I would like to convert to raster. The point-to-raster conversion tool creates a raster grid with spaces between each grid cell. I want to create a 'continuous' ...
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2answers
496 views

How to convert a shapefile polygon to raster in C#

Does anybody know a way to convert a polygon (vector) in a shapefile to raster data WITHOUT using ArcGIS Explorer Desktop? Is there a way to do this 'progmatically' in C# (WPF with ArcGIS runtime ...
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0answers
44 views

why ENVI displays colormap classified image as a RGB image

I want to do accuracy assessment in ENVI. My ground through image has 19 classes (Unsigned 16bit) when I opened it ERDAS and ARCGIS. But when I opened it in ENVI, ENVI displays these image as a RGB ...
3
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1answer
75 views

Soft edges for interpolation output

I've built the following heatmap using QGis 2.8.2's Raster->Interpolation feature. It looks almost the way I want: The background layer is Google Maps tiles by using the OpenLayers plugin. ...
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0answers
39 views

reproject satellite orbit values from irregular grid to regular grid

I have a ncdf file containing measurements covering a satellite orbit. The ncdf contains the corresponding latitude / longitude fields but they ar irregularly spaced. I tried rasterizing the values ...
1
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1answer
94 views

Under what situation do we use Rasterisation or Vectorisation?

As mention in the title, Rasterisation is the conversion of vector maps to raster grid. While Vectorisation is the conversion of raster grids to vector maps but under what situation would we use ...
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2answers
109 views

Preventing shapefile lines becoming rasterized when exported as PDF by ArcGIS for Desktop?

In ArcGIS for Desktop some Line feature shapefile becomes raster when exported as pdf. In exported PDF the line features layer is not present as it becomes raster. The line features are mixed with ...
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1answer
180 views

What is the difference between the “feature to raster” and “polygon to raster” tools when converting a polygon to a raster?

I am currently trying to get a group on connected polygons that are within the same feature to a raster so I can reclassify it for cost analysis. I noticed that ArcGIS for Desktop has a "feature to ...
1
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1answer
237 views

Elevation data from 3D shapefile of buildings to raster DEM

I have acquired LoD2 building models in the 3DShape format (Polygon ZM). This LoD2 data needs to be prepared for a R-script of solar irradiation calculations on roof surfaces, but which can only ...
5
votes
1answer
657 views

Create raster with grid cells values based on area covered by polygons

I have a polygon data with area covered by the forests (data is here - https://www.dropbox.com/s/zgckliydalljw6a/sp_data.zip?dl=0). I want to convert polygons to raster. The value of each grid cell ...
0
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1answer
54 views

How to rasterize a shapefile in R? [duplicate]

I have several shapefiels that i have to turn into raster. Here's the coastline coastline<-readShapeSpatial("shp") r <- raster(ncols=90, nrows=45) jd<-rasterize(coastline,r) plot(jd) ...
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0answers
27 views

fail to convert polygon to raster

I have a shapefile with 520 districts each with a value. I am trying to convert this shapefile to raster using feature to raster tool. Input feature: myshapefile Field: value Output raster: ...
0
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1answer
57 views

Create ID for each string attribute in QGIS

I'm trying to rasterize a vector layer by using an attribute filed stored as string, I got the confirmation through the GDAL mailinglist serv that gdal_rasterize does not work with string field. So my ...
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0answers
87 views

Problems with rasterization through QGIS Modeler

My goal is to rasterize a vector polygon-based shapefile. Whenever I run in the modeler or even from the Processing Toolbox the Rasterize tool of GDAL, I receive a raster layer that's not good for ...
1
vote
1answer
221 views

Converting polylines to raster, assigning value of total length of lines within cell?

I have a polyline shapefile representing a road network. I want to rasterise this data, with the resulting values in the raster showing the total length of lines that fall within the raster cell, ...
3
votes
1answer
368 views

Area-weighted rasterising of polygon data

I'm looking for any GIS tool to do detailed rasterising of polygons. I've checked GDAL's gdal_rasterize command (and API), and ArcGIS's Polygon to Raster tool, but they only rasterise 1 attribute per ...
0
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0answers
27 views

Rasterizing a SSURGO shape file with GDAL — Choosing right number of Pixels

I am trying to rasterize a SSURGO shape file into UTM coordinates with 5m resolution. My first step gives me a GeoTiff with 3000x3000 pixels in lat/lon. gdal_rasterize -a MUKEY -ts 3000 3000 -l ...
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0answers
79 views

Point to raster: QGIS vs ArcMap

I have an equidistant point grid (0.5m) and created a raster from it in QGIS and ArcMap, with different results: QGIS: Raster -> Conversion -> Rasterize Result: raster, with points in the top left ...
1
vote
1answer
115 views

gdal RasterizeLayer gives different extent to arcpy PolygonToRaster

I have an existing arcpy script which uses PolygonToRaster_conversion to convert a polygon shapefile to raster (tiff). I am now exploring GDAL/OGR and have used the cookbook approach to carry out the ...
0
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1answer
51 views

Rasterizing a simple sloped line

I am aware how to rasterize a 2D line, but if I have two coordinate triplicates (x1,y1,z1) and (x2,y2,z2), how can I efficiently rasterize the resulting connecting line such that the raster cell ...
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0answers
190 views

Convert polygon to raster and give value to null cells

Is there a way to convert polygon features to raster while also populating null cells with a specific value? As in, can I create a raster from a polygon shapefile and have the tool populate all null ...
0
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0answers
45 views

Rasterize and union problem

i've done the union first and then rasterized it. But now i want instead of that, to rasterize each one and then merge it as one. How do i do that? I mean without the union first off. ...
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2answers
165 views

Problem with contour lines thickness in bigger zoom levels

I'm a beginner user of GDAL tools. I'd like to rasterize contour lines into Tiff file (for example such region: N47E006), everything works for quite small zoom levels e.g. 10... but the problem is ...
1
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1answer
112 views

Problem rasterizing

I am trying to rasterize a shapefile using the "rasterize" tool in qgis. The problem is that the resulting raster doesn't seem to rasterize correctly... The teal and purple lines show water flow, ...
0
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1answer
204 views

Problem with attribute field in rasterizing tool QGIS

I am trying to rasterize a vector layer using the "rasterize tool" in QGIS... The problem is that there is no "attribute fields" available to choose from (even though they exist!)...
1
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1answer
235 views

How to turn shapefiles into raster and aggregate them into one raster

For example i tried this but it doesn't work rast_a<-raster(extent(shp_1)) res(rast_a)=100 rsh<-rasterize(shp_1,rast_a) rast_b<-raster(extent(shp_2)) res(rast_b)=100 ...