Questions about obtaining data.

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1answer
17 views

Show raster data in WEB

I have downloaded Landsat8 image and use matlab to processing temperature and vegetation. Then I insert data into PostGIS. I used QGIS to display the results but i want show in web. How to display the ...
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0answers
25 views

Searching for GIS data sources relating to the Soviet GULAG system

I'm desperately searching for GIS data related to the Soviet prison camp system, the GULAG. There are quite a few very good maps out there, but I cannot seem to find data in order to make my own. ...
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0answers
15 views

QGIS 2.2 Changeing txt data in theme table not working

A week ago I upgrade from QGIS 2.0.1 to 2.2 and try to edit some simple point themes I made recently. To my surprise, QGIS 2.2 randomly - not allways, does not allow me to change text I type into text ...
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3answers
64 views

Seeking Shapefiles of Restaurants in South Florida?

I am doing a project on food trucks for my Intro to GIS class and am looking for locations of places to eat here in South Florida to overlay with places of business. I would like to make a map of ...
3
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1answer
174 views

Worldwide places reachable by sea/ocean

I'm looking for a list of all populated places(not just big cities/ports) on the world that reside on sea/ocean. The list should contain the place name, latitude and longitude. Does something like ...
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1answer
21 views

1:250 streams data - USA wide - where can I find it?

I have 1:250 streams data for a few western states. I find this scale to be excellent in many settings as base hydro data. I have never been able to find a USA or better yet, NA wide dataset of this ...
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1answer
66 views

Calculation to convert db data to Lat/Lng degrees

In a database I have the following Lat/Lng data. I wish to convert it to a readable format. 177514245:34726053 => S 32 7.3947, E 115 51.4245 177513828:34726948 => S 32 7.3052, E 115 51.3828 ...
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0answers
45 views

Where can I get shapefiles for Indian Constituencies according to the latest delimitation?

The GIS data officially provided by the government is only available as PDF maps. Some people have shared shapefiles for the previous delimitation but these are outdated. Parliamentary constituency ...
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0answers
17 views

Shoehorning hierarchial data into MS SQL ArcGIS SDE

So, I've been tasked with creating a set of tables to store hierarchical data within an SDE. This is in reference to utility data, i.e, a set of valves, control panels, actuators, etc (each ...
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0answers
28 views

Adding KmlLayer using local file (File API)

I am trying to load a local KML file to the map for this I am using FileReader object (File API). To use google.maps.KmlLayer I need to use readAsDataURL to transform to a URL the file, the problem is ...
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1answer
61 views

Anyone who has the ESRI Census 2000 Tiger/Line data?

The ESRI Census 2000 TIGER/Line Data were free. http://www.esri.com/data/download/census2000-tigerline http://arcdata.esri.com/data/tiger2000/tiger_download.cfm But they vanished. The download link ...
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0answers
32 views

Using Field Calculator to Convert Data Type In Field

I am trying to convert a field that is listed as "String" because it was imported into QGIS as a CSV (rural poverty population percentages by county in NC). I need to convert the percentages field ...
2
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0answers
52 views

Where can I find administrative boundary data for Mexico? [closed]

The USA has states, counties, and cities. How are Mexico's territories split up, hierarchically? It also has states and cities, but does it have an intermediate-level political unit? Where might I ...
0
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1answer
56 views

Clip and ship by a queried layer extent and by user defined extent

I am trying add a functionality to the clip and ship script. I would also like the users to extract data by the extent of a queried feature layer. For instance, if County = "Alameda" then extract data ...
2
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1answer
38 views

Does anyone have aquifer depletion/recharge data for China, India, or any other country that isn't the United States?

Im doing a project for my capstone class in Geoenvironmental Studies and i am having a hard time finding data for aquifers in other countries.
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0answers
10 views

Industries Database - EPRTR?

I am looking for a coherent , complete (At least EU coverage) and reliable (spatial accuracy) databse for INDUSTRIES I have been checking EPRTR database. Basically, it shows around 24,000 industrial ...
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0answers
29 views

How do you assign classes to percentage data in a data layer?

As a learning project I need to coneptualize a GIS output for assigning classes to data in a raster layer. In this case i have the unemployment rates for relevant magisterial districts in my ...
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2answers
56 views

What are the ways we can control the quality of a DTM?

I imagine that for DTM obtained from Stereoscopic procedures or interpolation from a set of topographic points a comparaison with the original data can help, but what for DTM obtained from Remote ...
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2answers
82 views

Where can I get the location of all Universities and Colleges in North America?

This seems fairly straightforward but I'm having trouble finding the right data. All I need is the name, address, and lat long of all universities and colleges in North America. I've come across a ...
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1answer
22 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 ...
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2answers
46 views

Download Airports from OSM

Is there any way to download all airports in Europe from OSM? What I'm looking for is the Airport perimeter, (lines or polygons, dosn't matter) I know that I could download all Europe, and then ...
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2answers
58 views

Data providers equivalent to USDA/NRCS/FSA Common Land Unit (CLU)?

For one of my agricultural projects, I really need reasonably accurate field boundaries for fields in the US, specifically Iowa right now but later, other similar states. The USDA/NRSC/FSA Common ...
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1answer
15 views

Problem with MIF/MID allignment

After creating a rather large map in MapInfo using US Census Tiger data and exporting it to the MIF/MID format, it appears the files are no longer properly aligned. When I try to open the MIF/MID in ...
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1answer
27 views

Raw State Data on Health and Social Outcomes

I am looking for raw health and social outcome data (poverty, obesity, education levels, etc.) by state. I would like to download it as a csv or excel file. It needs to have the state fips listed in ...
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2answers
70 views

Canada FSALDU 6-digit Postal Code Data Providers

I have been looking into finding point data for the Canadian 6-digit postal code (FSALDU). I have come up with 3 sources so far, 2 being far more expensive than the other. After speaking with the ...
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1answer
16 views

Create NetCDF subset with different sizes

I have to create a netCDF file with different subsets. For example subset1 must be a 2d matrix, subset2 a vector, etc. I am using functions of netcdf library in C/C++ code: nc_create for the file ...
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0answers
28 views

Quickest method for determining which postcode is 2 miles north of original postcode? [duplicate]

What is the Quickest method for determining which postcode is 2 miles north of original postcode? For instant L17. I know how to determine the distance between 2 points as below, but the above ...
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1answer
39 views

Hard to get my head around, generating average price for houses in each quadrant

I'm able to determine the average price of houses sold in a particular area (like the squares on image below) dependent upon postcode. Although I can generate the average sale price for a particular ...
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2answers
44 views

Is there an average size for British postcodes?

Is there an average size for British postcodes? Or a method of determining the size for a particular British postcode? Thanks. Considering creating a related program and this would be valuable ...
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1answer
50 views

Where can I find GIS data about NYC's combined sewers (CSO) that's free to use?

I've located two sites that display the data that I'm looking for, but both lack exporting functions. OASIS NYC and maps.nyc/gov Otherwise I can't locate this data anywhere in a format I can use in ...
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4answers
114 views

Searching free data source: Shapes of counties worldwide

I want to create a map with openlayers, that contains a vector layer, with all "counties" of all countries of the world. "County" doesn't mean any strict political term here. I just want to split the ...
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1answer
42 views

How do I convert OS coordinates (X and Y) to longitude and latitude coordinates?

How do I convert OS coordinates (X and Y) - Eastings and Northings to longitude and latitude coordinates? For example X and Y below X (Eastings): 347904 Y (Northings): 287484
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1answer
53 views

How do I figure out the grid references (Eastings and Northings) necessary to create a circular 1 mile radius around one location?

How do I figure out the grid references necessary to create a circular 1 mile radius around one location? For instance: Grid Reference: SO 47904 87484 X (Eastings): 347904 Y (Northings): 287484 ...
3
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1answer
46 views

Where to get the modern Constellations as a vector File?

Does anyone know where I can get a vector version (shapefile/TAB) of the modern star constellations for the entire sky? Wikipedia has a SVG - ...
0
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1answer
77 views

Is it possible to get the positions of all the stoplights for a given area?

I would like to know if there is a database of longitude and latitude values that locate all stoplights for a given area in the US like a city or a state? How would one go about obtaining this info? ...
3
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1answer
95 views

How do I figure out the longitude and latitude coordinates necessary to create a circular 1 mile radius around one location?

How do I figure out the longitude and latitude coordinates necessary to create a circular 1 mile radius around one location? I don't mind how many coordinates that takes. For instance: Latitude = ...
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2answers
32 views

United States City/State comprehensive database [duplicate]

I have been searching online for a comprehensive record of all Cities by State in the United States. When I searched I found some dead links to old data sets. My question is, where is the best place ...
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0answers
30 views

QGIS - Is it possible to Animate Polygons based on column values?

If you have an number of polygons with numeric data across 4 attributes/columns, you can display the data for one column but can you automatically cycle through the values for other selected columns? ...
3
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1answer
58 views

Export multiple layers in ArcMap 10.1 and change each layer's source to exported data

A client has requested the MXD and relevant data for a particular map. The file contains over 40 layers across multiple data frames and references multiple geodatabases and shapefiles. Is there a ...
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0answers
15 views

Point of Interest coordinate data base

Can any one help me to find data a database for Points of Interest (with coordinates) for countries in Europe? I got some data from POI PLAZA, but I am not getting sufficient data for Scandinavian ...
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0answers
39 views

Generating Tiles for Non Geographic Datasets [closed]

Excuse my ignorance if this exists. I don't think I've seen a website ever using something like this. Have tools been developed that use general tiling methodology to implement non-geographical data ...
1
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1answer
56 views

Why am I losing part of my raster when I reproject?

QGIS 2.0 Working with tiff raster file. Reprojections are in WGS84 Mercator. Here is my problem: I am trying to use buffers or urban areas to analyze light intensity on a raster layer. I want 30 ...
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2answers
42 views

How to programmatically fill a datetime field with datetime.datetime.now() function

I have been trying to programmatically fill a datetime field using values coming from datetime.datetime.now() function. #I create the temp shp using a URI URI = ...
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0answers
41 views

Looking for USA roads traffic load data

I would like to make a map of the USA Roads with traffic load data (I don't care if it updates monthly , quarterly...) in order to analyze location of customer's shops (they sell vehicle parts and ...
1
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1answer
33 views

Plugins to guide inexperienced users: updating shapefiles and managing data

I am attempting to find a way to block adding features while certain attributes are not yet added. This would be useful in order to guide inexperienced clients and employees with the process of adding ...
3
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1answer
116 views

Why am I unable to download Landsat 8 geotiff data from the USGS site?

I seem to have an issue with not being able to download geotiff Landsat 8 data from te USGS site. After i find the image i would like to download and proceed to download the Level 1 geotiff option is ...
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1answer
25 views

Sources for long-term NDVI datasets with coverage to west Asia?

I'm in need for long-term NDVI dataset for my research in bio-climatology, looks like GLCF GIMMS are no longer available online, any suggestions/workarounds to get the data. Thanks in advance.
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0answers
26 views

How to Symbolize by creating tables containing different values (items) and with particular colors?

I work with ArcGIS Desktop 9.3. I want to illustrate my data for water sampling at different points in streams. I would like to illustrate a chart or a board for each point that would countain more ...
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0answers
63 views

Septic Tank Location Data for the Southeastern United States

I am compiling a database of septic tank locations to make some rough estimates of the magnitude of return flow to the groundwater system for the Floridan aquifer system. Ideally I would have a ...
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2answers
40 views

How to maintain many-to-many relationship between feature class and table with multiple disconnected editors?

I have an application coded with VB.NET (ArcGIS Engine) and its functionality is: digitize a parcel and enter information for its owners, so i have a M-N relationship between them. every parcel has ...