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3
votes
1answer
30 views

Stacking Vector Layers in TileStache

I am serving several vector tile layers of different geometries (point, line & polygon) in TileStache using VecTiles:Provider, with this cfgfile: { "cache": { "name": "DISK", ...
1
vote
1answer
26 views

How to determine the appropriate size of a 3 dimesional raster block/chunk

I am processing large MODIS time series (12 years) dataset with an array dimension of 4800 x 4800 with a data type of Int16-Sixteen bit signed integer. I want to build a 3 dimensional array ...
3
votes
1answer
48 views

R: extract values from raster stack and aggregate results

I'd like to extract values from a rasterstack, cell by cell, and create a list of the values: ext <- extent(0,100,0,100) r1 <- raster(nrows=100, ncols=100,ext) r1[] <- sample(seq(from = 1, ...
1
vote
1answer
76 views

stack rasters with different extent and resolution in a loop with R package raster

I would like to stack rasters with the R package "raster". Layers are in ascii format. I want to crop them to have the same extent and project them to have the same resolution. My code gives raster ...
1
vote
1answer
39 views

stack 10 modis ndvi geotiffs and scale them by 0.0001

I have 10 geotiffs Modis ndvi named 2005.tif ... 2014.tif I want to stack them all and create timeseries. i know how to do that, but the stacked images still need scaling by 0.0001. how can i bulk ...
4
votes
1answer
65 views

Where are the “band names” of an ENVI file once it is imported in R?

I have a .dat file (ENVI format) with specific band names, as you can see in the snapshot. I've imported this file in R, but I cannot find the band names in the R object. The command ...
1
vote
0answers
75 views

Unstack band layers from raster

I have stacked layer (from ERDAS) of Landsat 1-5 and 7, bands. I want each of the bands in a separate layer. How can I do that?
1
vote
0answers
53 views

R raster stack 4 dimensions

I am trying to create a raster stack / brick from a list of ncdf files with the dimensions 160x160x24x1). r = stack(files) This gives me a raster stack but without the 4th dimensions which is ...
3
votes
1answer
73 views

Migrating GIS Stack

I'm currently running the following GIS stack with a private hosting firm. Geoserver v2.5.2 PostgreSQL v9.3.5 / PostGIS v2.1 GeoMoose v2.6 I would like to find a less expensive option for hosting. ...
1
vote
0answers
80 views

gdal_merge shifts rasters after processing, layer stack is slightly off

I have experienced that gdal shifts rasters. The outputs of gdal_warp are often skewed, have different pixel sizes and so forth. A known error which has also been discussed here. But now, I had to ...
0
votes
0answers
37 views

Calculating maximum mean temperature of the coldest month with a lists of rasters

I need calculate the maximum mean temperature of the coldest month. I need first select the coldest month in a list and then in this month determine the maximum temperature. I do this: Create the ...
0
votes
0answers
45 views

Creating a for.loop to randomly extract data from a raster stack within shapefile extents

I'm currently comparing a MODIS time series of about 15 years to determine the effects of pasture management practices on the "greeness" of pastures in a water catchment. So far I've been able to ...
2
votes
2answers
207 views

Calculating quantile values over a stack of images with grass gis. Help needed on r.series

I need to calculate the values for the 25%, 50%, 75% and 90% quantile over a series of rasters (time series of ndvi values from landsat). I am exploring the r.series command in Grass GIS, but the ...
3
votes
0answers
184 views

How to calculate 90% confidence interval in a raster stack

I have a stack of grid files (23) in ASC format from a MODIS sensor and I need to calculate a 90% confidence interval, mean, min, etc, for each one in R, how can I do that? specially the interval. ...
0
votes
2answers
557 views

R -plot 12 images per plot or save 12 images per image file in R

Here is R script and my question is How can I plot 12 images per plot or save 12 images per image file because I have total 864 images. RAD1998 <- raster(paste(getwd(), "/1998bil ...
2
votes
1answer
290 views

Stacking overlapping rasters, keeping cell values on top?

I have a land cover classification that consists of three files. One file is the LCC for the western half of my study area, another covers the eastern half (these two overlap in the middle), and the ...
0
votes
0answers
78 views

Script to stack multiple landsat bands in different folders

I wanted to find out if there is a possible script I could use to stack landsat bands into a single image, and then apply that stack command to multiple folders (I have about 100 landsat scenes that ...
1
vote
1answer
176 views

Running Erdas command in MS-DOS

I have generated the following command line in ERDAS, and want to run it in MS-DOS. Getting an error- "system cannot find the path specified". I have checked the path by opening it in windows ...
1
vote
1answer
32 views

RasterStack extract() for duplicated dates

I have a a Large RasterStack of temperatures and a 10570 points in a Large SpatialPointsDataFrame and I'm using extract() to assign the temperatures to each point in R. ...
1
vote
0answers
83 views

write rasters from estudm2spixdf with significant digits

I have estimated my kernels using kernelUD from the adehabitatHS package which produces information from multiple animals as a class estUDm. I am trying to write out from R to get into ArcGIS the ...
0
votes
1answer
496 views

Is there anyway to stack or merge .hdf files in R Studio?

I would like to be able to merge, mosaic, or stack several .hdf files. Does anyone know the package or library i should be looking for the tool to do this?
1
vote
1answer
668 views

using GDAL/python to stack georeferenced images of different sizes

I am in the process of porting a code I wrote in IDL (interactive data language) to python but am running into a bit of a problem that I am hoping someone can help me with. The code goes like this: ...
1
vote
2answers
3k views

Can ArcGIS Desktop stack layers?

I have 7 bands of Landsat and I would like to combine all layers into one layer. Can ArcMap 10 do this like Erdas software can?
1
vote
1answer
47 views

What each stack element does

Im using the opengeo stack, and want to double check my understanding of each element. PostGIS - The database for storing my data GeoServer - The link between the online part / the database Here's ...
0
votes
0answers
125 views

Creating line transects for sampling across raster and vector data (stack profile)

I am working on a project that requires sampling across both raster and vector datasets using Arc 10. I have been creating polylines as transects over the study area and applied the "stack profile" ...
1
vote
1answer
324 views

how to rename the band-names of a layer stack?

I created a layer stack of 20 images (all GTiff-files) using the gdal_merge tool in QGIS, available at: raster > miscellaneous > merge The result is a GTiff layer stack of the 20 images, but ...
3
votes
1answer
139 views

Stack sat images and run operation on all

I have about 300 MODIS satellite with different acqusition dates, covering the same area. I am not used to work with so many tiles at once so I ask for advice. I am working with ArcMap10.1 What I ...
9
votes
2answers
4k views

How do I layer stack rasters in QGIS?

I have some multi-spectral data, where the individual bands are separate Raster files. How do I layer stack these rasters so that I get one raster with 3 bands instead of 3 different rasters? This ...
0
votes
0answers
61 views

Map stack preferences [duplicate]

Possible Duplicate: Comparison of JavaScript mapping libraries? I've spent most of my GIS life doing analysis and 3D stuff and after skirting the edges of web-mapping for a while (using ...