The amount of storage, either logical or physical, required for a file or dataset.

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2
votes
2answers
59 views

Techniques for reducing a MapInfo TAB's file size without losing too much integrity?

What are some techniques for reducing a MapInfo TAB's file size without losing too much integrity? The file needs to be reduced for use, not sharing (i.e. zipping).
2
votes
0answers
42 views

Is there limit on size of GeoJSON files that can be handled by QGIS? [closed]

I'm trying to load a GeoJSON file with about 5K features in QGIS, and it fails, saying Invalid Data Source without further details. If I remove features down to 1K, it works. Is there a limit on the ...
1
vote
1answer
36 views

Problems when joining large shapefiles to excel table

I began with a shapefile of 330,000 features, each having already been geocoded (not that it matters I don't think). I attempted to join this shapefile to an excel spreadsheet but of course, Arc ...
1
vote
0answers
82 views

Compression Algorithms output files larger than the originals. Why?

I'm currently attempting to write a script that will compress a few hundred .tif files. I've tried two approaches, first I wrote a script in Python using CopyRaster_management() function and the ...
1
vote
2answers
155 views

What causes large shapefile file size and can you effectively reduce it?

I have a shapefile that contains all counties of Poland in one shapefile. The shapefile is provided by central cartography agency. The file with counties they provide is around 30MB. The same ...
0
votes
0answers
14 views

image size has been increased after i.atcorr

I have compiled i.atcorr and run for different data sets. The problem is, it is writing the output 4 times of input image. I checked for data types, they are fine. I am not able to catch where ...
2
votes
1answer
75 views

gdaldem output file size explodes

I want to create a color-relief and a hillshade with gdaldem and use them with mapnik. System: Ubuntu 14.04 LTS Server, gdal-bin 1.10. Here are my steps: Download all SRTM tiles from ...
1
vote
1answer
175 views

How big areas/.osm data files can Maperitive handle?

How do the file-size limitations of Maperitive work out? Background: I'm interested in making a map of the whole of Germany. Any pre-generated maps I find online only cover a region at a time, so ...
1
vote
2answers
128 views

cartodb runs out of space *after* shrinking the data in the tables?

I try to work in CartoDB with data I import from CSVs (or xlsx, see below). The data is 24.1 MB in ASCII CSV, 10 MB in xlsx. I spent quite some time shrinking my data's size, and I was happy to ...
1
vote
2answers
278 views

Remove unneeded columns from geographic data file?

I have some GML data that has some unneeded columns in it. I'd like to remove these columns in order to reduce the file size. (To clarify: I mean that the file has many points in it, and each of these ...
2
votes
1answer
217 views

File size inflation normal with gdalwarp?

After using gdalwarp to project and align-to-grid (via -tap) a number of rasters I noticed that the output rasters were significantly larger than the original rasters. A fairly thorough web search ...
2
votes
0answers
86 views

Is there a size restriction on KML layer in esri map?

My website utilizes ESRI's map and it contains several KML layers. Most of them show up fine except for the ones bigger than ~4MB. Are there any restrictions on KML file size? Thanks,
4
votes
5answers
3k views

How to get a Leaflet app with a big GeoJSON file to work on mobile devices?

I have a leaflet app which displays a GeoJSON file as a layer. It works fine in the web browser. On the mobile browser it starts up, but quits after panning around on the map. I think the reason for ...
0
votes
2answers
512 views

OpenLayers: constraint a map extent and fit a div

I need to display a map with a world extension -18,-90,180,90. I want the map on the initial view to fit in the div. I tried to define the div proportionally to the map extent, but it does not work: ...
13
votes
5answers
3k views

What makes a MXD file size larger and how to decrease its size?

I know that MXD contains information about layers, symbology and configuration of default tools. I have a few that are exceeding 50 MB and are starting to take a while to load up. What are some of ...