On Wed, 6 Mar 2013, Philip Greenwood wrote:
Hi all,
This is a re-post from a few weeks ago.
I'm using writeOGR{rgdal} to a create GeoJSON temporary file then
reading the file and passing as a string in Java. It would be really
nice to avoid writing the temporary file, and have writeOGR
On Wed, Mar 6, 2013 at 2:07 AM, Hodgess, Erin hodge...@uhd.edu wrote:
Hello again.
I'm not sure if I should ask this here, but I thought it might be a place to
start:
I'm producing PNG files for ground overlays in Google Earth. After some
help from you this afternoon, my png files are
I have these eastings and northings:
easting - c(626550, 583550, 584083, 584550, 518437)
northing - c(169550, 172550, 173989, 169550, 160768)
Is there a way to convert to long/lat in R? Attempts to code through
googling have failed.
Thanks
Ross
[[alternative HTML version deleted]]
It's impossible to guess effectively from an infinite number of possible
coordinate systems (though probably the units are metres), but if you have
more information on where they come from, what they are, and even where
*you are* it can start to narrow down likely candidates. More information
If these are eastings and northings in the UK and based on the OSGB
National Grid system, then you just use the code I told you about last
week or so
The only problem might be if you don't know what grid square they came from.
On Wed, Mar 6, 2013 at 9:36 AM, Ross Ahmed
Hi Ross,
which projection does it have??
I think it can be done using spTransform but for that you need to
provide projection info.
This code might be useful
# need library (rgdal) and (sp).
a-data.frame(easting,northing)
coordinates(a)= ~easting + northing
proj4string(a)-CRS(Need projection info
Hi,
I'm using readGDAL to read data from a geoTiff file. The valid data range of
the single band is -26 to 0. I have two versions of the file, one with a
NoDataValue = - and one with NoDataValue = -128.
When reading the version with - everything works great, and I get the data
values in
On Wed, 6 Mar 2013, Biuw, Martin wrote:
Hi,
I'm using readGDAL to read data from a geoTiff file. The valid data
range of the single band is -26 to 0. I have two versions of the file,
one with a NoDataValue = - and one with NoDataValue = -128. When
reading the version with -
Ah, that was the problem.
The file with - that works fine is Int16:
apparent band summary:
GDType Bmin Bmax Bmean Bsd hasNoDataValue NoDataValue
1 Int16 -260 -3.130923 3.832138 TRUE -
While the other one is Byte:
apparent
On Wed, 6 Mar 2013, Biuw, Martin wrote:
Ah, that was the problem.
The file with - that works fine is Int16:
apparent band summary:
GDType Bmin Bmax Bmean Bsd hasNoDataValue NoDataValue
1 Int16 -260 -3.130923 3.832138 TRUE -
While the
The slider was exactly what I needed. Thanks so much!
Erin
From: b.rowling...@gmail.com [b.rowling...@gmail.com] on behalf of Barry
Rowlingson [b.rowling...@lancaster.ac.uk]
Sent: Wednesday, March 06, 2013 2:45 AM
To: Hodgess, Erin
Cc:
Hi,
I was given the following code to determine whether the spatial distribution of
attribute=1 is significantly different from the spatial distribution of
attribute=0
given that the points (overall) are not randomly distributed in space.
BaltCity2-readShapePoly(baltcity_mdsp83m.shp)
Hi,
My first advise is to point you to the vignette about handling
shape les in the spatstat package .Go to section 3.2.5 Objects of
class SpatialPolygons.
In short, you could do something like this:
BaltCity2-readShapePoly(baltcity_mdsp83m.shp)
play2-ppp(play$X_m,play$Y_m,
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