Questions about obtaining data.

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0
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1answer
198 views

QGIS 2.0 Howto copy raster data from a QgsRasterDataProvider to an OpenCV matrix

I'm hacking the half day arround a problem and that I' thought it was simple one. I'm using C++ (QtCreator) QGIS 2.0 und openCV2 on an 64 bit Workstation runnig Debian Wheezy. The Application I try to ...
3
votes
1answer
37 views

Global river datasets

Does anyone know of any large scale datasets for rivers that are higher resolution than the natural earth data? I've been looking at the digital chart of the world, and that appears to be ...
1
vote
1answer
32 views

Is it possible using JavaScript and cartodb.js to get the layer's total amount of visible data in a certain moment?

I am working with a torque layer and I would like to know for each moment the amount of data points shown in the visualization.
1
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0answers
21 views

How do I anonymize postal addresses?

I want to create an archive of mail I receive and send. Part of my goal is to provide public statistics about this archive, like a world-map with a pin for each location I sent mail to or received ...
2
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0answers
84 views

Tracking which LiDAR data tiles have been delivered

My company works with LiDAR data for large electrical transmissions systems (thousands of miles in one project). We model the transmission lines and do analysis using CAD and GIS workflows. We break ...
0
votes
2answers
411 views

How do I filter unique values using a definition query on a File Geodatabase?

Is there a way to filter unique values only from a column in ArcMap using definition query? i.e to use a Definition Query to filter out just those values which occur only once. In a Personal ...
2
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3answers
206 views

Are there better climate data than Worldclim for Europe?

I am looking for the best available climate data in Europe. Worldclim seems to be the best source of information for global data, but I am wondering if there is a higher resolution (better than 1km ...
2
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3answers
173 views
0
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2answers
132 views

Where can I purchase Points of Interest? (USA)

I have thousands of POIs with addresses and they are geocoded. The lat longs are on the road. I have Tele Atlas POI data, but it also shows the locations closer to the road. Is there any ...
0
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3answers
51 views

Where can I find open source bulk US DEM or imagery?

I am looking to create terrain hillshading for my maps that contain a small region of the US. I intend to show about eight to ten states at a time (at about ~1:5,000,000 scale). It has been some ...
8
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3answers
4k views

Best source for high-resolution satellite images free/low-cost?

I am doing a household survey in Kenya, and I need to ensure that my survey team visits every house within a given area. I've been going to google maps and right-clicking on roofs to get coordinates ...
1
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0answers
265 views

Geospatial Tools for SketchUp

I was wondering if anyone knows of geospatial tools that work in SketchUp? I know if GeoSketch, which allows a user to import ortho imagery, DEMs, shapefiles and GPS enabled photographs into SketchUp ...
1
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0answers
20 views

Similar paths to Compare [duplicate]

I want to implement a mechanism to compare similar / identical paths. For example, a person who makes the trip home - work every day, be able to detect these paths and create groups to compare ...
3
votes
1answer
36 views

where can I get population of each of the Indian villages and towns?

There are over 600,000 villages in India. I want to get the population of each of the village according to 2011 census. I searched the http://censusindia.gov.in website for hours but could not get ...
1
vote
1answer
33 views

Optimized interpolation method with fixed-location sample data points?

I'm trying to find an optimized spatial interpolation method that deals with fixed-location sample data points. Say if I have fixed-location sampling sites and collect data daily, and then use these ...
1
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0answers
78 views

How do I automatically generate a spatial data catalogue from shape files and .gdbs?

I've recently inherited a whole bunch of spatial data (mostly shapefiles but some .gdbs) which relate to a bunch of different cities. I'm looking for a way to take an inventory of what data I've got ...
2
votes
2answers
173 views

Is there anywhere that I can obtain global UV data in either raster or vector format?

I'm looking for some UV data (currently with no spatial or temporal resolutions in mind, but ideally split into UV-A and UV-B) for the whole earth. Can anyone recommend a source for data like this or ...
50
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14answers
3k views

The GIS of War - Tracking Conflicts and Their Effects

I was idly speculating on the many sorts of things people are keeping track of these days with GIS - natural/human catastrophes, demographic and economic patterns, climate change, etc. In that vein, I ...
11
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2answers
576 views

Is there an automatic function in QGIS to package all shapefiles in a project for transferability?

In my project, I use a lot of geodata from different directories. Now I want to give the QGIS project to a colleague (eg on a CD). Is it possible to copy the shapes from different directories ...
1
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0answers
39 views

Can i input two layers in data driven pages [closed]

I have created data driven pages with one shapefile, but now i want to input another shapefile. Is it possible with data driven pages or another way? Edit: I want to intersect with DDP, like this in ...
1
vote
1answer
15 views

Raster map & vector boundaryline data for Istanbul, Turkey

I'm looking where I can download background raster map for Istanbul (street map?), and then a boundary line file of the the 39 Districts in Istanbul. Does anyone have any recommendations?
0
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2answers
291 views

Cannot register a Feature dataset

I am having an issue trying to register a dataset, and being able to edit a featureclass within it. I am new to SDE so please bear with my explanation. I read online you cannot register a feature ...
8
votes
2answers
4k views

Is there a way to add a PDF to ArcMap as data?

I receive a lot of PDF maps (vector, image, with georeference and without) and I am having to convert them to an image file before I can add them to ArcMap and georeference. I can't see any obvious ...
1
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3answers
144 views

Equivalent of CORINE land cover data sets for rest of world

I am looking for the equivalent of CORINE land cover data sets (100 meters) for the rest of the world; not merely urban areas but any area in general. I see sousa's question unanswered so I thought I ...
2
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0answers
30 views

Looking for high resolution land use (not land cover) data sets for world?

I am looking for high resolution land use data sets for the world. This question is NOT to be confused with an earlier question - Equivalent of CORINE land cover data sets for rest of world which ...
0
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1answer
38 views

Commercial Admin Levels

I'm looking to find commercially available admin boundaries (0 through lowest available) for the world that I can place into a user-friendly interface that allows the non-technical user (ie someone ...
1
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2answers
34 views

Looking for the Coords of US Map Boundaries

I am writing a program that needs a list of coordinates for the boundaries of the US. I can only find states individually but not the whole country. This is an example of the boundaries for Alabama. ...
5
votes
3answers
388 views

In what data format should I export a (lat,long,alt) or (x,y,z) grid to be compatible with the largest number of GIS software?

I am new to GIS and developing an application that generates a 3D grid with (latitude, longitude, elevation) or (x, y, z) metric triplets, and I would like to add an exporting feature that ensures ...
0
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0answers
28 views

GIS shapefile data for Singapore Urban Planning areas

Is there any free resource to obtain Shapefile data for Urban Planning area boundaries in Singapore?
1
vote
1answer
52 views

Where to Dowload Village layers for India with census 2011 information?

Does anyone know where I could download a layer of all villages in India together with their populations (hopefully from the 2011 census)?
2
votes
1answer
25 views

Having trouble finding cloud cover data

I'm working on a project for a GIS course, I chose to find the best locations for the placement of an observatory. To accomplish this I planned to use cloud cover (or percentage of clear nights), ...
4
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0answers
36 views

How can I identify lines that intersect a certain raster layer area?

How do I identify certain roads ( of a line shapefile) that intersect with a layer that is produced from the reclassify tool (for raster data)? I am trying to identify which roads specifically are in ...
1
vote
2answers
53 views

Data of worldwide shore lines and bathymetry

Please excuse my probably naive questions because I am new to this stack exchange. Is there a free database with all geolocations for shorelines? Is there a free database for near-shore bathymetry ...
2
votes
0answers
29 views

Dataset in NJ, US

I need datasets in shapefile format including roadbed, building footprint and building roof height for Jersey City, NJ. I checked everywhere I could online. State, county and local GIS departments, as ...
7
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4answers
339 views

Does anyone have data or shapefiles for tidal flats, mangrove distribution, or salt marshes?

I am looking to map out the salt marshes, mangroves, and tidal flats of the world, but I am having difficulty finding data for this. Does anyone have any such data? This is for a research project at ...
1
vote
1answer
76 views

shapefile for mumbai area or section wise

please don't kill me if this question is listed anywhere else, i really searched high and low to find answer to this question. i am working on a project in which i need to plot data on Mumbai city ...
2
votes
1answer
38 views

Get SHP or SVG from GADM subdivisions within a country (Guyana)?

GADM is a high-resolution database of country administrative areas. I have downloaded the whole world distribution (it is composed of several dBase III files and a big .SHP file). I am trying to ...
2
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1answer
821 views

Seeking shapefiles of business locations [duplicate]

Does anyone know where to find shapefiles of businesses such as grocery stores or gas stations?
0
votes
1answer
28 views

Copy Feature Class to Feature Dataset

I try to copy a feature class to a feature data set but i get this massage see the screen shot , what might be the issue here?
4
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3answers
2k views

Using CityGML data with ArcGIS Desktop or QGIS?

I'm looking for advice on how best to use the CityGML data-structure and GIS (preferably ArcGIS/QGIS). I've read through their website and wiki and saw a list of software here that can be used to view ...
4
votes
1answer
525 views

Extract BoundingBox of Cities

For simple geocoding purposes I want to extract all cities from a single country of openstreetmap. They only queries I want to do are: ZipCode -> (List of) BoundingBox of City/Village ...
2
votes
1answer
148 views

Natural Earth: How to get the position of all provinces that belong to a state

This question is about Natural earth 1:10 states and provinces.shp file. I'm using ogr2ogr and want to know the name of the id i need to pass . In purpose of pulling out the right states regions. ...
0
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2answers
42 views

How to obtain data to create average precipitation in 2012?

I am currently doing a final project, which I have to create a map of 2012 average precipitation of lower 48 states by using natural neighbour interpolation. The problem is that how can I get the ...
4
votes
1answer
572 views

How to create tiles with points from MongoDB?

I have a (potentially) large data set stored in MongoDB. Each record is just lat, lon and some float-point value. Each pair of lat and lon is unique, but the whole set is not covering the Earth, there ...
1
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2answers
171 views

Rasters added to mosaic dataset only display at large acale

I have a set of 357 rasters in .jp2 that I've added to a mosaic dataset. All but 7 of them display properly, but the 7 only display at larger scales, around 1:6500 and under. I've tried adding them ...
1
vote
2answers
41 views

Where can I find hydroelectric generation data for the U.S.?

It is my understanding that the US Army Corps of Engineers has some hydro generation data on their various websites (divisions, districts). For example, there is real-time hydro-electric data ...
0
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0answers
15 views

Where do I get the coordinates of (african) borders from? [duplicate]

I want to draw a map of africa. Therefore I tried to find the coordinates of the coast and the borders as latitude/longitude. Where can I download this data for free, preferably in Excel format?
18
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8answers
12k views

Where to get 2010 Census Block data?

This might be a stupid question but I would like to download 2010 Census Block Data for several towns and I can't seem to find it on American Factfinder. Is it there? And if not, does anyone know ...
3
votes
2answers
1k views

Problem loading table in ArcMap

I am an ArcGis 10. ( ArcEditor licence) user and I have a problem when trying to load data with the Load Objects Tool in ArcMap. I want to load a table, but after I choose the input data ...
0
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2answers
38 views

Are there publicly avaiable run-off data for Africa

I was wondering if there are good publicly available dataset for surface run-off (water)? I have a rough idea that surface run-off should be some function of rain-fall and soil ...