1
vote
2answers
23 views

QGIS doesn't create the correct projections when creating new shp files

I recieved shapefiles exported from ArcGIS with EPSG:2227 as the CRS, which should be: +proj=lcc +lat_1=38.43333333333333 +lat_2=37.06666666666667 +lat_0=36.5 +lon_0=-120.5 +x_0=2000000.0001016 ...
0
votes
1answer
243 views

Stuck installing gisgraphy: org.springframework.beans.factory.BeanDefinitionStoreException

I'm been trying to get gisgraphy to run for a few hours but seem to get stuck at the exception being thrown below. I thought it might have been the gisgraphy-3.0-beta2 version of gisgraphy but I now ...
0
votes
2answers
447 views

Convert long/lat to indian grid system

how to convert lat/long coordinates to Indian Grid system? I've googled for a couple of days but didnt find the exact algorithm for this. and i got a link Indian Grid System. but i didnt get a picture ...
1
vote
2answers
43 views

Creating counties in QGIS

I have a raster map (a photocopy I took from an Atlas), and a vector map of the UK. The raster map shows pre-1890 Scottish county borders. I have geocoded the map so that the raster borders overlap ...
0
votes
1answer
160 views

Adding more fields in locator style to creat customized address locator

I have a database following the structure of "US Dual Range Addresses" and I want to, in addition of the fields used in dual range addresses, add more fields and I want to know what are the changes I ...
0
votes
0answers
3 views

I am a beginner with geoserver. Trying to display layer contols. Nothing is comming any body can guide me to resolved this issue.

GeoServer Layer .opmap { height:500px; width:550px; } /* The map and the location bar */ #map { clear: ...
1
vote
1answer
132 views

How can I merge two lines to one via OpenLayers?

I have a tool on the map that lets the user draw a line. Now I want to give the user the option to split the line to multiple lines, to join them back together to one line later. How can I do that ?
0
votes
0answers
4 views

Get the specified feature by direction

I have two lines, while I want to get the line at the right hand according to a specified direction: The red line with arrow means the direction, while the line with blue color is the target to be ...
1
vote
1answer
113 views

3D Analyst - Point File Information - pt_spacing definition?

I can't find any definition of the outputs of the Point File Information tool, specifically the pt_spacing field. Is this the average distance between points, or the average number of points per ...
0
votes
0answers
6 views

removing spurious lines in raster before or after vector conversion?

I'm looking for a feature/function in either python opencv/ndimage/gdal/etc. or qgis/saga/grass that will help clean up a skeletonized image that I'd like to vectorize into a shapefile of ...
2
votes
1answer
146 views

CartoDB “Error loading rows, check your SQL query” & “There is a pb with your connection”

I have been trying to install my own CartoDB server for a few weeks. I succeeded to install each part with no error (after few corrections) with this tutorial. Make check with CartoDB-SQL-API and ...
0
votes
1answer
79 views

Opening shapefiles with geotools

Trying to make a simple class that will read shapefiles and eventually be able to pull out the coordinates/attributes for each feature (working with points here). But can't quite figure out geotools. ...
0
votes
0answers
16 views

Polygons and points

Sorry for the basic question. I'm using qgis. I have two layers, one with points (a file that contains addresses with latitudes and longitudes linked to several variables), and another layer (a ...
0
votes
1answer
143 views

Problem opening GRASS GUI: libgeos-3.3.6.so: cannot open shared object file:

I have been using GRASS to process some Landsat imagery but very recently, and as far as I am aware - after having done nothing different or changing the settings, I am trying to use GRASS and on ...
0
votes
1answer
23 views

arcgis geodatabase replica between different versions

We have 2 geodatabase corresponding to 2 systems. There is a replica between these 2 geodatabase all use version 10. Recently there is a version upgrade in the parent geodatabase. It will be upgraded ...
1
vote
1answer
29 views

Does a high number of SDE_state_lineages slow performance?

In our SDE database, the SDE_state_lineages table has around 200,000 records, the SDE_states has around 900, and our SDE_versions table has around 1,300 records. We've been having performance issues ...
0
votes
2answers
131 views

GetFeatureInfo for gxp_olsource in OGS GeoExplorer

We have an OpenGeo Suite GeoExplorer 3.0.1 and want to make GetFeatureInfo-requests, via the identify button, for WMS-layers of type gxp_olsource but it doesn't work, I get no response at all and I ...
3
votes
5answers
4k views

How can I symbolize a layer with graduated colors by a date/time field?

I've got a layer of polygons where each has a date associated with it. I want to color the polygons with graduated colors, but I want the colors to start with the newest polygons and fade to the ...
2
votes
1answer
241 views

pyQgis in stand alone script, vector loading error

I am trying to use the Qgis functions in a stand alone Python script. I m running Mountain Lion OS, 2.7 Python & the Qgis 2.0.1 Dufour. My main problem is that I cannot get started - I cannot ...
2
votes
2answers
38 views

How to quickly fill multiple gaps in a series of adjacent polygons

I've been given a "background" dataset which is designed to draw as the first layer in a complicated map. For some reason the data provider has previously erased this dataset with roads, parks, etc. ...
2
votes
2answers
148 views

display GeoReferencing image through MapServer

I have a tiff image and got the world file which contains the needed information for GeoReferenceing, how to start add this image on Mapserver ? if I use C# and use GMAP API to call the google server ...
1
vote
1answer
15 views

Intersect shapefile with raster, then determine proportion of each raster value?

Using the arcpy module in Python, I want to find the proportion of each pixel value within the boundary of an overlaying polygon. (The polygon is in a shapefile.) For example, there are 10 possible ...
13
votes
5answers
832 views

What iOS (iPhone/iPad) app from the App Store can I use to collect data?

What iOS app from the iTunes App Store can I use to collect data (mainly points, perhaps photos) and later import them into my GIS? I am mainly interested in an out-of-the-box solution, not develop ...
9
votes
5answers
1k views

How to build a geographic database of GPS logs?

On our aerial wildlife surveys we typically generate dozens of GPX files, and usually convert most of them into shapefiles for display in a GIS application. GPX files are a terrific way of keeping all ...
1
vote
3answers
25 views

Symbolizing multiple polygons as one by dropping internal boundaries?

Using ArcMap (ArcGIS 10.2 for Desktop), is there a way to symbolize two features within the same feature class as one feature without editing the feature and merging them? For example, if I have a ...
0
votes
0answers
19 views

Statistics field in the dissolve tool not always accurate

When I run the Dissolve Tool using a Statistics Field (SUM being the statistic type) and proceed to check the SUM values for accuracy by comparing against the data in the original feature class, I ...
3
votes
2answers
221 views

Per-pixel (statistical) calculations on a raster stack using GDAL

In R, it's relatively trivial to perform per pixel calculations based on a raster stack (e.g., get std.dev for each pixel on a 12 layer GeoTIFF). Unfortunately, the speed is less than desirable when ...
3
votes
1answer
230 views

Problem PostGIS Spatial Query ST_Contains ST_Disjoint ST_Intersects

I'm working on a project with two different tables inside a database. One contains points in a column geometry(Point,4326) type and the second one has a column geometry(MultiPolygon,4326). Now I would ...
0
votes
1answer
6 views

Problems while rendering with Atlas

when I export my data genereated with the openLayers using Atlas rendering is always incomplete. Atlas is rendering too fast so that the data from openLayers is not completely loaded. Do anyone ...
3
votes
1answer
57 views

ORA-28595: Extproc agent : Invalid DLL Path

I'm trying to create a table with spatial column in oracle and insert data into it. I'm using ArcSDE and Oracle. The version of Oracle is 11.2.0, the version of ArcSDE is 10.0. My create statement ...
0
votes
1answer
17 views

Why Polygon to Raster Tool in ArcGIS10 doesn’t divide the resulting raster on cells?

I try to create raster composed of small (5x5 m) cells (pixels) from a polygon in ArcGIS-10. I created a polygon (as a single object), and use Feature to Raster Tool and Polygon to Raster tool (of ...
0
votes
0answers
5 views

Updating an ArcPad Server Extension publication

If you have succesfully created a publication (axf file) that syncs between the server and multiple users, what happens if somebody wants to change the publication data, e.g. add some new fields ? ...
2
votes
1answer
17 views

How to create a summary statistics table with as many rows as iterated features? I only get one row

I have a feature layer of 25 buffers, which are the light blue circles you see. Let’s call each buffer a community. Many buffers overlap. Each buffer has a unique ID. I also have a feature layer of ...
0
votes
0answers
36 views

Adding information from excel into ArcGIS [on hold]

I am working in ArcGIS and have a excel sheet with data pertaining to properties. I want to add this data to a map in ArcGIS of which i have property boundaries as a shapefile? I have a common folio ...
1
vote
2answers
73 views

How to calculate the square root of a feature attribute?

I have a polygon shapefile with over 16k features. Each has an attribute (Double, Precision(10) Scale (2)) that I am trying to calculate the square root of, and store in new field. Is there a tool, ...
1
vote
3answers
45 views

Bootstrap and Leaflet - Grid Issue

Trying to use integrate a simple leaflet map within Bootstrap grid / column. While I am trying to follow tutorials and templates, for some reason the <div> id="map"</div>does not seem to ...
0
votes
1answer
120 views

How do you create a CartoDB viz with a dynamic SQL statement?

I want to create a CartoDB viz where the where parameter in my SQL statement changes dynamically at runtime. When I share my CartoDB viz from the dashboard, I can't help but notice the the SQL ...
3
votes
1answer
63 views

ArcPy delete terrain: cannot be deleted

I can't get my ArcPy script to delete a terrain. If it exists, it should be deleted. However it throws an ERROR 000317: {path} cannot be deleted My script is a lot longer than this, but this ...
0
votes
1answer
19 views

When is Geographic Weighted Regression used and why?

I am currently trying to better understand what geographic weighted regression is, and what it is useful for. I have been reading up on it, but would like to get others people's views on it and see ...
3
votes
0answers
25 views

How do ESRI and QGIS calculate scale values of geographic projections?

Does anyone know how (from which location) scale values are calculated in ESRI products and QGIS for geographic projections? The only thing I've noticed is that QGIS is changing scales when you pan ...
7
votes
2answers
86 views

Run ArcGIS 10.1 application on 10.2

I support a .NET application that has been compiled on a PC with ArcGIS 10.1 installed. The application comprises a user interface and an ArcGIS desktop extension, plus an installer assembly that is ...
0
votes
1answer
135 views

ArcMap reports that PostGIS polygon data is self-interescting

I have an ESRI File Geodatabase of data that I upload to PostGIS using FME. Seeing as I have to have the data in PostGIS for other purposes, it would be great to view the data in ArcMap straight from ...
1
vote
1answer
29 views

Adding popup to geojson layer based on feature property?

I'm using leaflet and trying to add a popup to a point on the map that will return a property of the point from the geojson file. Going off this post has been helpful problem adding pop-up to GeoJSON ...
2
votes
1answer
23 views

PROJ4 / PostGIS transformations between WGS84 and NAD83 transformations in Alaska

I'm trying to implement the recommended WGS84 - NAD83 transformation for Alaska using PostGIS. This post: Geographic Transformations in Alaska Between NAD83 and WGS84 indicates the proper ...
0
votes
1answer
13 views

How can i convert .tif file into headerless (flat) binary files?

I am using NDVI files (value range -1 to +1) created from Landsat CDR images to produce a timeseries in TIMESAT software. My .tif file has following characteristics. File type TIFF,Data Type ...
0
votes
0answers
9 views

3D Analyst Extrude Between

I have a few TIN surfaces at different elevations, basically soil profiles, I've used the "extrude between" tool to create multipatch features. However, only one of the features says it is a closed ...
0
votes
1answer
109 views

How Can I Merge Geocoded Addresses With a Shapefile and Export One Table?

I currently have two layers in my QGIS (v1.7.3 for Mac) project -- one being a Pennsylvania State House shapefile and the other being 166 geocoded addresses (for which I used 'Add Text Delimited ...
-6
votes
0answers
35 views

What GIS processing machine is best to purchase if I have $5k to spend? [on hold]

I process huge data sets quite often. After expressing concerns with delays in project time frames, I have been given $5k to purchase a new PC. What should I get? I have built a couple machines on ...
0
votes
0answers
14 views

Run-time substitution on MapServer with Leaflet

I have a MapServer instance and map file displaying data in selected countries using a Leaflet WMS tileLayer. This map file works to display points from a single country (showing the LAYER definition ...
0
votes
2answers
23 views

Aggregating rasters with GDAL

I have a set of files that have been mosaiced into a global VRT in a particular projection and resolution. However, I have a need to report statistics on a (say) one degree grid, where the reported ...

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