4
votes
5answers
3k views

How to select all dangling polyline features with Arcview license?

I have a city roads shp file and would like to identify (select) all the locations where a roads ends (in other words dangles). I am working in ArcView 10. I do not want to use a topological tool ...
4
votes
4answers
7k views

How do you add file name to an attribute field?

Does anybody know how to add the shape file name to a field in the file's attribute table? I've found a description: 'You have to use inline variable in CalculateField like %Name% in expresssion ...
6
votes
1answer
7k views

can I extract overlap of polygons within the same layer?

I am trying to extract the overlap of polygons that are within the same layer in 10. The layer came from a buffered street centerline and I'm trying to extract and delete the intersections from the ...
6
votes
2answers
2k views

How are Class Extensions associated with a Feature Class in ArcGIS v10?

In ArcGIS 9.x if a Feature Class is registered with a Class Extension the CLSID of the extension is recorded in a table in the sde schema called sde.GDB_OBJECTCLASSES (EXTCLSID field). However in ...
3
votes
1answer
10k views

Changing the coordinate system of a qgis layer to the projection of Google Earth

I want to know how to change coordinate value of a vector layer (13293061,-572595) to 119.413,-5.13677 (vector data & Google Earth do not match). If I output my data using Google Earth as ...
0
votes
1answer
219 views

Developer-friendly Embedded systems GIS library?

Having seen the answer to the smallest GIS library for embedded devices, I'm asking a related question. I want to do simple point-in-polygon and other spatial relationship tests against a shapefile. ...
3
votes
1answer
1k views

geometryType property of Vector Layers in OpenLayers

ORIGINAL: I have a couple questions that are focused around the geometryType property with vector layers. When you create a vector layer you can set the geometryType property to limit the geometry ...
4
votes
1answer
810 views

Has anyone found a workaround the IMemoryBlobStream.LoadFromFile() error

As far as I am aware, you will get an error if you try to load large file sizes using the function IMemoryBlobStream.LoadFromFile(). Has anyone found some workaround code to load a file into a ...
1
vote
2answers
1k views

Can you reorder a classified vector layer in QGis?

I have a GML file that I'm displaying in QGis - it contains a set of contours and they are written out in such a way that the lowest contour (largest polygon) is drawn last thus covering up all the ...
1
vote
1answer
716 views

Choosing best projection/SRID

I created a shape in OpenJump and exported it to shape(ESRI) file and then imported it to SQL2008 via shape2sql , the problem is that it shows bigger than what I want, In OpenJump it shows 1meter ...
14
votes
5answers
15k views

How to perform Raster Reclassification in QGIS?

Is there a way to perform a reclassify of a raster image in QGIS? In ArcGIS you can do that in Spatial analyst Tools→Reclass→Reclassify Any ideas?
0
votes
2answers
1k views

Is there a way to have a single point feature with multiple records?

Is there a way to have a single point feature and have multiple attributes records associated with it? Multipoint approach won't work as it gives me one attribute set (database row). I am trying to ...
4
votes
1answer
783 views

Open street map accuracy problem

I want to locate shops with open street map. For that I send a query to nominatim, a webservice which geocodes coordinates from addresses. I draw a marker at the returned coordinates, and it´s ...
5
votes
4answers
3k views

Free sources of mapping data for France

We are moving to France soon, and are currently investigating a lot of areas. Does anyone know of good online/offline resources for French mapping? I am very interested in mapping, weather, ...
6
votes
1answer
651 views

Do OpenLayers maps always show/flash an empty screen while zooming?

When double-clicking on an OpenLayers map, the screen is momentarily blank while the next zoom level draws. Is this avoidable? It's not ideal, given that many other mapping APIs show a smooth zooming ...
2
votes
3answers
219 views

Best program for crowd-sourced polygons on Gmaps

Looking for a way to crowd-source polygon creation on GMaps (in a wiki environment) that doesn't involved ESRI's expensive server software. Requirements: - a bunch of different wiki pages can be ...
4
votes
1answer
1k views

Examples which use map reduce to process GIS data? [closed]

Have anyone have a few examples how to use mapreduce effective with GIS data?
3
votes
2answers
523 views

Many of the Esri samples fail the WC3 HTML validator. Is this a problem?

I'm running into problems with some ArcGIS Server JavaScript code (page elements are positioned different in IE than FF/Chrome), so I checked it against the HTML validators at http://validator.w3.org ...
2
votes
5answers
15k views

Why is this ExtJS combo box not filtering? [closed]

I am trying to place a combo-box in the top of my web application which will search an internal WFS from Geoserver. I am using the combo-box so I can have the "type ahead" functionality which I think ...
3
votes
3answers
4k views

Printing with ArcGIS API for Javascript?

Any examples of how to print a map using the ArcGIS API for Javascript (JSAPI)? All from the client?
3
votes
2answers
199 views

Can “Getting to know ArcGIS Desktop” for version 9 be used as a tutorial for version 10?

I am a GIS basic/novice user. Our company has ArcGIS 10 desktop, and since it is multi-user license, I was allowed to install on my computer. I was given a copy of "Getting to know ArcGIS desktop" ...
2
votes
1answer
307 views

How to get the Nth LineString from a MultiLineString in PostGIS?

I need a function that gets the Nth LineString from a MultiLineString in PostGIS, somthing like ST_PointN that gets the Nth point from a LineString.
1
vote
0answers
899 views

mixing lon/lat and mercator layers in a MapServer .map file

I have a basic question about my MapServer .map file, which has two layers, each with a different coordinate system, longlat vs. mercator. See my .map file below. If I leave it as shown below, with ...
1
vote
1answer
340 views

What technology to use for an Interactive web map? [duplicate]

Possible Duplicate: Comparison of JavaScript mapping libraries? I need to build a custom interactive web map of my country with all it's regions (Peru). Which tool or technology would be the ...
2
votes
2answers
5k views

Seeking free, publicly available GIS data for Singapore?

Are there any free, publicly available datasets for Singapore? I've examined Openstreetmap, Global Admin Boundaries, GRUMP and the Natural Earth datasets, but I'm interested in vector data of higher ...
8
votes
2answers
2k views

Build and export PDF maps using ArcObjects?

I have a series of featureclasses and rasters generated using ArcObjects and calls to the Geoprocessor. I have the paths to the output, which are located in a file geodatabase. How can I use ...
2
votes
0answers
556 views

How to transform Lambert to WGS84 in SQL Server?

Need to create a SQL view of calculated Lat/Lon values from an existing SQL view of County Coords. Loaded up SQL Server Spatial Tools and registerd CLR types. Lambert generated a resource error. -- ...
13
votes
2answers
449 views

Getting differences between old and new versions of ArcSDE database?

Is there a tool or a process that can reveal changes made to the schema of an ArcSDE database when comparing two versions of the same database hosted on different servers? I have an old database ...
1
vote
0answers
108 views

issue with WEB ADF based Web application

I have a WEB ADF based application that I am having some issues with. When I start app in debug mode, it shows me a blank page but I can right click and choose the option view in browser and it works ...
2
votes
0answers
1k views

GeoExt (ExtJs + OpenLayers): bug in IE9 when try to change map_panel from container A to container B

Techonology: GeoExt, which combines ExtJS with OpenLayers I am trying to dynamically change the app layout by changing a map_panel from container A to container B, and vice verse; basically, for each ...
0
votes
3answers
1k views

Test Attribute with 1 or more possible values in FME?

This question continues story on link What's the syntax for an AttributeFilter in FME?. Now, how can I test attribute value if there are more than one value and proceed it to the Clipper (uses as ...
2
votes
1answer
328 views

Deploying to ArcGIS 10 Server .NET/Java

We're in the process of transforming a lot of 9.1 ArcServer/ArcObjects etc applications to ArcGIS Server 10. However, we're unsure as to licensing on 10. As I understand it, I cannot, according to ...
3
votes
1answer
118 views

TINs: What advantage does unequal sampling of data points have over regular sampling?

Triangulated Irregular Networks. Under what conditions is one sampling method more appropriate over the other?
2
votes
1answer
1k views

Using a value from "iterate feature selection' to calculate a field

I'm trying to streamline a model that identifies all zones that intersect each parcel in our Local Government Area (eg. Parcel x has Zone B1, B2 and E4). I am trying to make use of iterators in ...
1
vote
1answer
2k views

(arcengine) export selected features from sde to shapefile (with joined fields)

I have a SDE featureclass that is joined to an access table in my map control. I want to export selected features of the SDE layer to a shapefile AND retain the joined fields. this following method ...
1
vote
3answers
501 views

How can I generate and publish raster images?

I have several hundred groups of data points (in lat/lng format). I want to generate heat maps for each group using kriging or similar interpolations and then display the generated raster images on a ...
0
votes
1answer
159 views

registry Setting for ArcGIS 931 on Windows 7 PC

I am having some issues with ArcGIS 9.3.1 instalation on Windows 7 PC. After installation, when I checked the regsitry setting, it shows: ArcInfo as entry (I chose the option of Arcview during install)...
5
votes
1answer
1k views

Split line using line/point in PostGIS 1.5

I have a layer that contains a master line (one big polyline) and a another layer that contains "break lines". I need to be able to split the master line at the intersection of each of these break ...
3
votes
1answer
357 views

SDE Topology dirty areas don't go away

Just looking for an explanation on SDE Topology dirty areas that don't go away. My workflow involves editing a version of SDE data, then once finished I use the Validate Topology in Current Extent ...
8
votes
5answers
8k views

Programmatically start and stop map services with Python

Is it possible to programmatically stop and start ArcGIS Server map services using Python?
21
votes
6answers
14k views

How to cluster spatial data in R?

I am very new to R. I have bunch of data points with latitude and longitude. I want to use R to cluster them based on their distance. I have already taken a look at this page and tried clustTool ...
28
votes
2answers
1k views

What projection appeared in the NYTimes this morning?

Perhaps not as GIS related as some, but definitely about maps. Can anyone identify the map projection that appeared in the New York Times this morning? It's not one I've seen before, and a quick scan ...
3
votes
2answers
6k views

Drawing circle of specified radius in meters using ArcGIS API for JavaScript?

I am trying to add a circle of a specified radius (let's say 200 meters) to a map. My thought is to create a SimpleMarkerSymbol object. The constructor asks for a size of the symbol in pixels, but I ...
0
votes
3answers
8k views

How can I add the Spatial Analyst ArcToolBox?

I tried to add the Spatial Analyst ArcToolBox by right click and selecting 'Add Toolbox' but I cannot find in any folder the available toolboxes. They seem that they have disappered. I work with ...
1
vote
1answer
106 views

Merge column data with a IFeatureClass

I have a points shapefile with City, State, Zip columns. I want to merge the column data together into a new column containing: City-State-Zip (with the hyphen). Can I merge column data like this ...
8
votes
0answers
313 views

Is there open source GPS post-processing software? [duplicate]

Possible Duplicate: Post Processing GPS Data with open source software Here at the office we have a couple of 15-year-old Trimble 4700 and 4800 units but now we don't have the software to do ...
4
votes
1answer
3k views

How to identify image location?

I have a satellite image of only one part of some city with a lot of vegetation. I need to find out where is that image taken. I'm interested is there any way to find out where it is taken on Google ...
5
votes
1answer
375 views

Looking for a Public WPS Service

Can anyone point me to a public WPS (Web Processing Service)? I need to do some testing on it and results in Google and Bing show nothing. Thanks.
0
votes
0answers
58 views

Caculating Longitude and Latitude for Moving Object [duplicate]

Possible Duplicate: Calculating Lat/Lng X miles from point I don't know how to ask the question, so I'll explain my requirments -- I hope I'm in the right site :) Let's assume that a person ...
3
votes
2answers
3k views

Batch Processing 400 MODIS HDF4 Files Using Several Tools In ArcGIS 10

This is my first post, I hope I don't screw it up. We have about 400 MODIS HDF4 files we are looking to batch process in the ArcGIS 10 or Python environment. The tools we are looking to use are ...

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