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Questions tagged [rasterize]

107 questions
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Vbscript scripting for adobe illustrator "rasterizeOptions"

I'm trying to make a vbscript for illustrator cc that selects all content on a layer named "test" and rasterizes it with a few settings. I can't figure out how to use the "RasterizeOptions" class, I use vbsedit to browse trough the objects but from…
Tom
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Rasterize random spatial points doesn't work

I'm new with R and I need to make a Raster based on a large database of random points. You can see the distribution of them on the southern half of Belgium. point distribution My needs are : -The raster has to match the extend of the country. -I…
louis Deslee
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Creating raster with circles from dataframe in R

How can I create a raster layer with filled circles centered in "c(df$lat,cd$lon)" and radius "df$radius" from a dataframe? df <- data.frame(lat=c(40.4,42.4,42.4,42.4,42.3), lon=c(-0.3,1,1.5,2.7,2.1), …
ADM
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character/factor equivalent of returned integer values from rasterize

When using raster::rasterize, I can feed a polygon attribute that is character for example state names. It converts the characters to integer values. How to find out what are the corresponding character/string for each integer value? > rfc class …
newbie
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Rasterize SpatialPolygons in R is ignoring small values

I'm trying to convert a polygon shapefile with small values. Values from the colunm propEmp range from 0.000002 to 0.119419. This is my attempt: # Load shapefile emp_planejado <- shapefile("./planejado/7_wgs/emp_planejado.shp") # Load raster…
Tiago
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How do I export into pdf in phantomjs with this link.

I have read about phantomjs and rasterizejs as well. But my link is this:…
imbadatcoding
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rasterize.js to convert svg to png

I have been using phantomjs to create headless screenshots. This is how I usually do it: phantomjs phantom-crowbar.js my-path/index.html mysvg bubble.svg phantomjs rasterize.js bubble.svg bubble.png When this is run locally, it works perfectly and…
chumbak
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How to rasterise and not to get duplicate information in r

I'm having trouble rasterizing a data.frame using the raster package in R. My data.frame contains environmental data for the world oceans (temperature etc.) with their coordinates (grid 0.5*0.5), decimal longitude from -90 to 90 and decimal latitude…
Spes Alpha
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How do I rasterize a graphic that contains path data?

I am trying to rasterize some SVG data to a PNG and it is not working. Could someone please tell me what I am doing wrong? This code does not seem to have any data in the BitmapData object. var color:uint = Math.floor( (Math.random() * 0xFFFF00) +…
Michael Horn
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Get all pixels a ray passses through

I have a 2 dimensional space and a ray in that space. I need to get the coordinates of the red rectangles in the order of the numbers. My attempt: I have the starting of the ray which is a double. I have a value yaw which is the direction in…
Alice Ryhl
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Overlay shapefile and rasterlayer in R?

I have a raster layer with climate data from the north of Mexico, part of Canada and the US mainland. I am trying to restrict the climate data to only the zone of the US mainland. To do this I thought it would be easy to import a US mainland map and…
user2917283
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What does "region" and "polygon" mean in rasterize function from raster library in R?

When I use the function rasterize from the raster library in R, this message appears in the console: "Found 6085 region(s) and 6409 polygon(s)". There is 6085 polygons in the shapefile, so I was wondering what does these two terms mean ?
DJack
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Rasterize only the edges of a SpatialPolygonsDataFrame

I've imported a shapefile using readOGR (from package 'rgdal'), and obtained a SpatialPolygonsDataFrame. When I use the 'rasterize' function (of package 'raster') I obtain this http://img15.hostingpics.net/pics/427269plot.png But I want to rasterize…
Karim Ghariani
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How to create cohesive Spatial Pixels from Spatial Points Dataset

I have a Spatial Point DF spo (covering an irregular shaped area of interest). The data are not on a regular grid due to crs transformation. My goal is a raster with predefined resolution and extent of the area of interest ( more spatial point data…
Janhoo
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How to convert a PDF to Bitmap (rasterized) in C++ (without .NET)

How can I convert a PDF to a bitmap (as in an array of pixels, not the .bmp file format) using C++ in a way that will work on both Mac and Windows? On Mac I may be able to use CoreGraphics to do it, but that doesn't give me a windows solution. I…
taxilian
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