Displaying 4 results from an estimated 4 matches for "rastergrobs".
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rastergrob
2015 Nov 05
2
PDFs and SVGs containing rasterGrobs don't display correctly in some other software
...DF and got the same
result. I also tried generating SVGs using both grDevices::svg and
Cairo::CairoSVG, and also got the same result.
I see the same thing using R-devel and R3.2.2 under Windows, and (with
an older version of R) under Linux.
I don't know whether the problem is with grid's rasterGrobs, or how R
writes PDF and SVG files, or with Inkscape and Firefox's method of
rendering those files, or with me. Please can you help me narrow it
down.
- Can you reproduce my problem? That is, when you run the above code,
does the file look OK in a PDF reader but blurry in Inkscape?
- Do you...
2009 Dec 01
6
raster support in graphics devices
Hi
This is for developers of extension packages that provide extra
*graphics devices* for R.
In the *development* version of R, support has been added to the
graphics engine for sending raster images (bitmaps) to a graphics
device. This consists mainly of two new device functions: dev_Raster()
and dev_Cap().
The R_GE_version constant (in GraphicsEngine.h) has been bumped up to 6
as a
2012 Mar 16
1
ggmap crash
Not sure if this is the right place to report this, but:
Am using ggmap to generate a map of a bounding box from 161
latitude/longitude pairs and the code crashes R (in ess). Data is at
http://analysis.d8u.us/~hdiwan/plotSource.csv and the code to read it
is below. I'm not sure if ess, emacs, ggmap, R, or my laptop is to
blame. Here's the code:
> rmc <-
2012 Feb 14
4
Color cells of a matrix as in Excel
All,
I frequently make spreadsheets in Excel in which I rank values in columns
by stop-light colors (red is bad, yellow is OK, green is good).
Image and heatmap expect a matrix in which all the data are in the same
scale, but I frequently have different scales in different columns. ie.
Column one runs from 1-10 while column 2 runs from 1-100. I thus need to
define a separate color ramp for each