2
votes
2answers
133 views

Can't get correct number of populated places for a place

I am trying to get a number of populated places for example for Andorra since it is a small number. Here is a geonames site with 10 places: http://www.geonames.org/AD/largest-cities-in-andorra.html ...
2
votes
1answer
489 views

ArcSDE 10 FeatureLayer is read only, FeatureTypes property is null, not sure why

I have a WPF FeatureLayer backed by an ArcSDE feature class that I hope to use for editing. After the layer is done initializing its readOnly property is true, I think that this points to some problem ...
3
votes
1answer
2k views

Casting a Geography type in PostGIS

I have the following table defined, which uses PostGIS geography. CREATE TABLE test_geog ( id SERIAL PRIMARY KEY, boundary GEOGRAPHY(Polygon) ); I added the following test polygon to the ...
14
votes
4answers
5k views

How to join attributes from nearest point in QGIS?

I have two layers with points, call them A and B, each with different attributes. For each point in A I want to join all the attributes from the nearest point in B. Ideally this would also include ...
5
votes
2answers
685 views

matplotlib does not work in ArcGIS 10 and Eclipse (Python)

I have installed matplotlib (v. 1.0.1) which works with iPython quite good. But if I insert the same script in ArcGIS 10 or Eclipse 3.7.0 (with PyDev) I get always errors. As I consider to use ...
3
votes
1answer
796 views

Toggle Identify with Button

I am attempting to set up an Identify button that will only allow the identify functionality to be performed when the button is pressed. I have gotten to the point that the identify only works when ...
5
votes
4answers
2k views

Is there a way to disable code autocomplete in the Python window in ArcGIS 10.0

Autocomplete slows down my workflow in the Python window, especially if I am remoted into a machine. Is there a way to disable this? Alternatively, a way to disable this and then invoke as needed ...
6
votes
1answer
2k views

ArcMap Field Calculator syntax (again)

I'm trying to string together a field calculator script that will populate all the records of a field at once based upon values in a number of fields. I can't even get the first part of the command ...
9
votes
1answer
153 views

How to get the contributors on Open Street Map

I have put my osm file in base thanks to osm2pgsql and I am looking a way to get the contributor list. I have searched in my database and haven't found so much... and the osm wiki about the osm2pgsql ...
4
votes
3answers
2k views

Change the size of an OpenLayers.Control.OverviewMap

I create my OpenLayers.Control.OverviewMap with a given size but I would like to change it when certain conditions are met. I have tried two approaches with no luck... My first try was just changing ...
5
votes
1answer
1k views

Determine the UTM zone/hemisphere in a particular datum

I'm using GDAL to convert coordinates from one system (geographic or projected) to another. Assume I want to convert geographic coordinates (latitude and longitude) in the WGS84 datum, to UTM ...
23
votes
5answers
5k views

How to identify clusters in vector point data?

I have a vector dataset of rural broadband data-points (how fast, etc.) and I'd like to explore if there are clusters of points with similar characteristics, and to plot polygons encompassing them. ...
1
vote
1answer
344 views

Defining custom projection for moving all objects on X and Y coordinates

I have a map project wih layers in WGS1984 UTM projection. I also have a bunch of layers without .prj files. When I add it on top of my layers, it's placed with a huge offset on X and Y coordinates ...
18
votes
3answers
12k views

ArcPy and running Python scripts (with parameters) within another Python script

A common coding pattern used in AML was to run an AML (with parameters) inside another AML. An application that I'm currently developing would benefit from being able to run a Python script (with ...
2
votes
2answers
110 views

earthquake effects on total station surveys

What I have been wondering is whether an earthquake can affect a closed system survey. We are using Leica TCR 307s and TCR 407s and I was wondering if an earthquake can throw off your fixed points if ...
1
vote
3answers
934 views

How to restrict zoom levels based on Bing Map availability?

Background My site is built on ArcGIS Server 10 with the JavaScript API 2.3, and uses Bing Maps as the background mapping. Although the site is aimed at NSW, Australia we allow the user to zoom ...
2
votes
4answers
8k views

Avoiding Raster to Shapefile (Polygon) errors 000863 and 000308?

Have you experienced converting a polygon from raster? The raster dataset is a satellite image created from zonal statistics? The problem is when I was converting the raster to polygon errors came out ...
4
votes
1answer
2k views

Stream Gradient - two types - using NHD high resolution data

I need to calculate slope, or stream gradient, two different ways: 1.) Main channel slope from the pour point to the head/source point along the vector stream network 2.) a local slope consisting of ...
7
votes
3answers
330 views

Changing a coded Domain to no codes

If we have coded domains in the geodatabase model, what are any disadvantages to changing the codes to the Description. For example: Existing Coded Domain: Code, Description 1, Single Family ...
1
vote
1answer
164 views

How to display Lidar Data in ee0 (Interchange File) on Maps

Hi I have Lidar data in ee0 files (interchange files). Can i ovaerlay them on some maps like say Bing Maps or Geoserver with Open Layers? If yes whats the right way of doing it? Thanks
4
votes
3answers
737 views

How can I have ArcGIS not automatically add raster clip output from Python window to the current map

I have a collection of rasters that I'm writing code to automate clipping based on a user defined shapefile. I am currently doing this in the Python window using the following as the main processing ...
4
votes
1answer
293 views

Select points within 2 buffers

I have 2 huge files of points (hundreds of thousands of points). I need to determine a way to loop through all the points in one file and find all the points in the second file that are only a ...
1
vote
1answer
204 views

Is Orbit EOS Lite Free GIS Map Server an OpenSource software?

I'm writing an essay about web mapping software and I can't find out is Orbit EOS Lite Free GIS Map Server an OpenSource software or not? Also, I would be thankful if someone gives me some links with ...
4
votes
2answers
1k views

dwg from ArcGIS to Autocad 2012

I haven't used CAD in years and am quite rusty about its features. But a client who uses CAD has been experiencing difficulty lining up *dwg files exported from ArcGIS in their CAD workspace. How can ...
3
votes
2answers
1k views

App using ArcGis Engine throws error at customers

I developed a program using the ArcGIS Engine 10.0. On my development computer it runs nicely, but when I deploy the binary to the customer computer the program throws an exception when trying to ...
3
votes
2answers
570 views

Count the number of segments of a polygon based on the angles

I wish to count the number of segments of a polygon that has a length less than 25 meters when the angle between two vertices is not close to 180 degrees i.e. if the angle is between 178 to 182 ...
7
votes
1answer
2k views

Help with PostGIS polygon geometry - non-closed rings

I've picked up a copy of the super-wicked book 'Python Geospatial Development' by Erik Westra (Amazon link), and I'm working through it. Currently, it's teaching me to load GSHHS coastline data from a ...
0
votes
1answer
394 views

NDVI image value

In order to get monthly NDVI image with max value from two 16 day-images, I used mosaick tool in ERDAS8.7 by choosing max function from "set overlap function" tool. But after doing this, when I see ...
3
votes
1answer
328 views

How to get first, most current coordinate in GeoCoordinateWatcher?

It seems like when I have an app that uses a GeoCoordinateWatcher and I attempt to get the first coordinate, it always pulls the last coordinate that the GPS used first when raising the ...
3
votes
1answer
124 views

Incorrect GeoCoordinate at Random

Sometimes when the device is pulling coordinates with the GeoPositionAccuracy set to High and the MovementThreshold set to 0, the GeoCoordinate that is captured is further away and not inline with the ...
2
votes
2answers
770 views

Zoom to see entire MapLayer in Bing Maps

If I have a MapLayer that I'm applying to Bing Maps where I have a list of coordinates, how can I zoom to see the full MapLayer (dynamically zoom to the proper size) and toggle between seeing the ...
9
votes
7answers
6k views

Register SDE view and Layer

I'm building simple views against an ArcSDE Oracle RAC 10g. My SHAPE columns are of SDO_GEOMETRY datatype. ArcSDE 9.3.1. I have several point tables, with the following outline: ID (Guid) Name ...
1
vote
2answers
728 views

FeatureLayer Scale Settings in ArcGIS Silverlight API

Is there a way to translating between resolution and scale in the ArcGIS Silverlight API? I am dynamically adding a Feature Layer to my map which should have a Min Scale value of 10,000. The feature ...
3
votes
1answer
151 views

Using ESRI Python's Geoprocessor Via mod_python

I am working on a number of geoprocessing services to be accessed solely by web clients. The traditional method of encapsulating this type of stuff in toolboxes and then publishing the toolbox just ...
3
votes
2answers
1k views

Stylized map workflow: Illustrator to Google Maps / OpenLayers

The aim My current aim is to create a series of (heavily) stylized diagrams and maps. I'm not very familiar with any GIS software, so my weapon of choice would be to use illustrator for creating the ...
5
votes
1answer
278 views

Does Google Earth Builder support server-side geoprocessing?

Is there a feature in Google Earth Builder that supports server-side geoprocessing? For example, say I upload two large geo datasets to Google's cloud: one with lots of points and another with lots ...
2
votes
1answer
486 views

Why won't this simple raster layer in my mapfile show up?

I am trying to get a simple raster layer to work on MapServer. I am not exactly going to be using geographic data, but I want to "georeference" multiple rasters together to create a map-like ...
1
vote
0answers
151 views

mapserverpro.com & mapserving.com opinions? [closed]

Does anyone use these services? I'm trying to figure out which way to go as I embark on a mapping project, and wonder what GIS-dedicated hosting services like these are like. Thanks.
10
votes
4answers
842 views

Open Street Map and PostgreSQL what do I exactly need?

I make my first steps in the GIS world and everything is very new for me even if I work on a "huge" project (ie: for a single programmer) very related to maps. My project needs to know informations ...
5
votes
1answer
2k views

Is there an event fired when a kml layer has finished loading in google maps?

Is there an event fired when a kml layer has finished loading in google maps? Google maps api version 3 To add a layer I have code like: var layer = new google.maps.KmlLayer(layerUrl, { map: map, ...
2
votes
1answer
588 views

Web Browser ActiveX control error

I am getting this message (attached) that says: "An ActiveX control on this page is not safe. Your current security settings prohibit running unsafe controls on this page. As a result this page ...
4
votes
2answers
477 views

What alternatives to Orfeo are out there and what are the pros and cons of each?

I'm interested in using a library for abstracting the common, repeatable tasks that entail the usage of GDAL (like registiring a driver, getting bands.. etc). In general, GDAL is "low-level" and most ...
9
votes
2answers
2k views

Map hosting options

I'm trying to figure out how to best get started on a web-mapping project, and am wondering about where I should host my maps from. In terms of my skills, I'm quite good at desktop mapping and ...
3
votes
5answers
1k views

When a raster is clipped to a polygon with Python, why does it still take on the extent of the entire shapefile?

I am clipping a raster image to each polygon row in a shapefile in ArcMap 9.3 using the Clip tool (Data Management) in Python with Clipping Geometry set. While the clipped raster successfully depicts ...
3
votes
4answers
2k views

How to clip raster image by the extent of each row in a shapefile with ArcGIS 9.3

I'm using Python to clip a raster image by each row in a shapefile with ArcGIS 9.3. I am hoping to end up with one raster image for each polygon row, clipped to the extent of the polygon row. ...
1
vote
3answers
589 views

What other tools can complete this exercise besides ArcGIS Spatial Analyst?

excel spread sheet here The objective in the exercise is to determine how many public computers are available per person as a result of spatial distribution of libraries and people. Part 1: Grid of ...
1
vote
1answer
326 views

Comparing GIS libraries

I am new to GIS. As a part of my research, I want to figure out among OSSIM, Saga API, Terralib and MApnik which one will best satisfy the following functionalities and why ( all for desktop GIS ...
5
votes
3answers
5k views

Getting Started with MapBasic?

I am new to MapBasic. I googled for tutorials and found various PDFs but could not get started with the resources. I would be glad if anyone could provide some path for learning MapBasic.
4
votes
2answers
2k views

geotools vs. geotoolkit

The geotoolkit.org web site has very little documentation. From this document I get the impression that it is a fork from geotools; is that right? If so, what were the motives/objectives of the fork?
0
votes
2answers
1k views

QGis import partial PostGIS layer using query builder

I'm sorry, but I'm terribly new to the GIS scene (and PostGIS & QGis). I have loaded a whole bunch of OpenStreetMap data into a PostGIS database and successfully drawn a map using Mapnik. Now I ...

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