1
vote
0answers
267 views

Can I use RGeo::Point data in PostGIS queries without multiple conversion?

How can I represent RGeo::Point ( CAPI implementation ) in some way where I don't have to convert it once more in Sql? Now I have something like this: class Poly scope :enclosing ->(geom) do ...
1
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0answers
189 views

Quering a ArcSDE featureclass attribute table after joining

I am trying to query a ArcSDE Feature Class after joining using Iqueryfilter I have two SDE feature classes. 1) Subdivisions : which has details of subdivision and districts (parent) 2) ...
1
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0answers
98 views

Join .csv file and .shp of georeferenced points

I have georeferenced a map and saved a selection of some points on the map. These points are cities of departure and arrival and I want to join the .shp with a and excel .csv with the information of ...
1
vote
0answers
50 views

Printing a map with GPS points

This should be simple but I haven't figured it out. I have been able to download points from my gps unit and get the points to show up in the right location. But I don't know how to print the image. ...
1
vote
0answers
114 views

Distance Units of a Layer

I am developing an ArcGIS desktop addin. I am attempting to get the distance units (ft, mm, km, etc.) from a layer in my .mxd and display it on a windows form. How can I do this? I can access the ...
1
vote
0answers
281 views

SAGA kernel density error with Sextante Modeler

I can succesfully perform SAGA kernel density analysis with Sextante (1.0.7) in QGIS 1.8.0. But i want to built an automated tool for this job with Sextante Modeler. But i got foolish errors. This ...
1
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0answers
90 views

Shows Netherlands region on map on every zoom level not other region in Open Street Maps

I want to show/display only Netherland region on Openstreet map, dont want to show other region on maps. Same thing apply for zoom in or zoom out also. I have tried with applying bounds but does not ...
1
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0answers
127 views

How can I add data to a shp file attribute table from arcobjects?

I have a code that selects row data from a listview table in VB.net. I have declared that data as a variable and I can see it if I ask it to dispay a message box (see code below). Now I would like to ...
1
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0answers
89 views

openlayers Arcgis WFS mousehover

i have a problem using ArcGIS wfs layer in openlayers. I would like to add the layer to the map as vector layer and then using a mousehover to highlight the features. However i cannot bring it to ...
1
vote
0answers
173 views

How can I move two layers at once in QGIS?

I'm trying to move two digitized layers, one containing points, the other polygons to a different location at the same time. QGIS doens't seem to allow this. Even if I select both layers and features ...
1
vote
0answers
91 views

Developing Carto Mobile App

I have the project to develop a mobile application (Android) being able to get offline maps, go on the field, collect datas about the area we're at and then synchronize it with our data server when ...
1
vote
0answers
100 views

Using Python to Switch Layout Templates

Using ArcMap 10.1: Since there is not a way to control portrait or landscape of the layout view through python, is there a way to switch layout templates without opening a new mxd through python? ...
1
vote
0answers
58 views

how to use ArcGIS cloud hosted map with custom data from mysql

I have map hosted on ArcGIS.com which I can use and embed in my webpage. I have few tables with latitude-longitude in mysql. is there anyway I can add it as marker overlay layer on map taken from ...
1
vote
0answers
113 views

SLD style definition from GeoServer to Drupal

I've been experimenting with the SLD style definitions in both GeoServer and Drupal. What I want to achieve is to create a new style in GeoServer (by a curl operation, but I know how that works) and ...
1
vote
0answers
50 views

How to obtain and compare neighboring point attributes? (ArcInfo)

This question is kind of hard to explain in a short phrase, so this is what I'm talking about. I have access to an ArcInfo 10 license. I have a layer of point features that all have a "Team" ...
1
vote
0answers
149 views

How to fix “Error processing specified tolerance!” in Polygon Centroids tool?

I am using QGIS 1.8.0 to find the centroids of 92 features (i.e. smaller polygons) in a polygon layer. However, while using (Vector -> Geometry Tools -> Polygon centroids), I encountered the ...
1
vote
0answers
355 views

GRASS Plugin to QGIS error

I am installing QGIS and GRASS as part of an FOSS GIS class I'll be teaching this summer. I used the OsGeo4W installer. This installer has always worked flawlessly for me except on the machines at the ...
1
vote
0answers
149 views

Plotting time-series data in ArcGIS

I'm attempting to produce interpolated plots of water quality time-series data from ArcSDE. This is the data format: OID WELL_ID WELL_NAME SAMPLE_ID SAMPLE_DAT PARAM RESULT ...
1
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0answers
27 views

Preventing symbols from different layers from interfering with each other in ArcGIS online

I am tackling a project that contains several new elements for me since I am a high school social studies teacher and not a full-time GIS professional. For this particular project I am trying to show ...
1
vote
0answers
62 views

New geographical point won't show on map

I did recently ask a question about how to add a new point to a PostGIS table. Now when I've got the new point in the table it should be visible on my map, but it isn't. I'm using Mapnik together ...
1
vote
0answers
301 views

How can I parse the SLD file that sits in Geoserver so that I can apply the styling to WFS layer?

I have a layer that can be configured to render as WFS or WMS. I want to apply the same sld styling that I have defined in Geoserver to make it consistent. But when I try to get the SLD text from ...
1
vote
0answers
161 views

running geoserver in tomcat7 with eclipse

i downloaded geoserver,put it in tomcat7, lunched tomcat7 with powercmd and published my layers and styles.i created a web application, where i add the laters above to a google basemap. Now when i ...
1
vote
0answers
39 views

Do I need to deal with warnings about row count and spatial index to use pgRouting?

After read this nice post from underdark A Beginner’s Guide to pgRouting, although I still have some little problems, I think I can begin the "Creating a routable road network" stage right now. I got ...
1
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0answers
102 views

calculating st_simplify tolerance for openlayers

I want to display a vector layer in openlayers. Users can scale the map before they load the vector layer and I'd like to simplify the geometry with st_simplify before sending it to the client. Does ...
1
vote
0answers
110 views

How to use OSM2PO for transit routing?

I'm using OSM2PO (4.6.9) for "classic" routing, I mean highway network and everything works fine. Now, I want to use it to route in a "transport" network, a bus network for instance. But I want the ...
1
vote
0answers
66 views

proportion of image layer in OL

I tried create map with single image used OL. But I have a trouble: image in map has a wrong proportions. Img: 1540 x 1481 Img in map: 2858 x1481 My js code: $(function (){ var map = new ...
1
vote
0answers
237 views

Extracting street segments from google maps?

I'm using the google maps v3 api and am trying to extract a list of intersections and street segments from an overlay created from a KML file. Ideally, I'd like to be able to get the poly lines in a ...
1
vote
0answers
369 views

How to calculate weighted mean coordinates within polygons?

I'm using QGIS 1.8 on OSX 10.8.3. I have a polygon shapefile of all of the US state legislative districts. I also have a layer of points that are centroids of US Census Tracts, with a field for the ...
1
vote
0answers
95 views

When should I merge two or more sub-basins into one?

I've been using Archydro to analyze one of the unknown hilly regions with many watersheds. Unfortunately, ArcHydro generates so many sub-basins that it looks really unrealistic and weird. However, I ...
1
vote
0answers
154 views

scale dependent rendering of base layers(gmap,ghyb) causes warping/flickering

Hey guys I am using geoserver to host my WMS layers and I am using gmaps base layers in Openlayers. Below I have attempted to use scale dependent rendering of the base layer without any luck. What I ...
1
vote
0answers
124 views

Event Layer plugin - setting/verifying z coordinate (Measure attribute)

I've loaded a shp file (ROUTES.shp) layer containing geometry for highway segments with a ROUTE attribute for each. I understand that the plugin uses the "z" coordinate of the shp file segments to ...
1
vote
0answers
308 views

WMS bounded overlay with OpenLayers and GeoServer

I'm trying to design a heatmap overlay bounded within four given coordinates with OpenLayers using WMS protocol to communicate with my GeoServer instance, where my data and SLD heatmap description ...
1
vote
0answers
273 views

intersect two shape files using QGIS API

I am trying to automate a process of a shape file. We are using google maps engine and we have limitation on number vertices in a shape file. so I am using a grid to split the shape files. In GUI , I ...
1
vote
0answers
223 views

Why does Clip analysis generate (some) empty output?

I am running a script that is working (see below) - it pulls a file from a folder, clips from that file based on an intersection with another file, and creates a new shapefile in a new folder. It has ...
1
vote
0answers
85 views

How to randomize colors for large datasets in QGIS new symbology?

Someone has already asked how to randomize colors by class in QGIS new symbology, but the answer there does not work with datasets containing more than 100 unique values since the Random option only ...
1
vote
0answers
111 views

Normalize with gdal_translate

I do not understand the command line when I try to work with gdal_translate in QGIS. I found this at the forum: Normalize raster values to 0-255 And tried this: *"If not, from within QGIS choose ...
1
vote
0answers
142 views

graduated pattern polygon fill

I'm sure this question is really really basic but I appeal to you because I hate the idea that I have spent 20 minutes trying to do such a simple thing... All I want to do is style a polygon layer by ...
1
vote
0answers
69 views

Refresh Database automatically

I'm a new user of QGIS. I have a problem trying to update layers from a database. I have a MySQL database in a server that I add as a layer (or more than one, depends on the project) with no problem. ...
1
vote
0answers
132 views

When digitizing Lines, vertices are automatically generalized when finished feature

I am creating lines(feature class) and when the feature is finished Arcmap 10 will automatically generalize/smoothens the line. Is there any reason why this is happening? is this a bug of ArcMap 10? ...
1
vote
0answers
529 views

trying to find areas within a certain driving distance along a road network WITHOUT a specific destination

I was hoping somebody might be able to help me out with this. I'm trying to use Arcmap 10.1 to find all the areas along a road network (a county roads layer in this case) that are a certain driving ...
1
vote
0answers
182 views

arcpy ArcGIS Server

Could someone please help me by giving me an example on how to make/connect/Add ArcGIS Server connection via python/arcpy? Thank you in advance. I'm using ArcMap 10.0 I desire to "Use GIS Services" ...
1
vote
0answers
238 views

Render Google Fusion Tables Layer Tiles in OpenLayers

I would like to know if there is a way now to include Google Fusion Table Layers Tiles in OpenLayers, and if yes, is it possible to use the dynamic styling just like in Google Maps? I know you can ...
1
vote
0answers
30 views

How to load more than the standard tools to the grass toolbox?

I need to know how I get all the grass tools into the grass toolbox of QGIS. Is there an easy way to do this? I tried the sextante toolbox. After an update sextante doesnt work (python errors). For ...
1
vote
0answers
238 views

Using custom contextMenu in Arcobjects(C# and ArcMap)

I added a new custom tree to TOC which looks like this: IObjectClass IFeature IFeature ... IObjectClass IRow ... made context menu using this sample ...
1
vote
0answers
277 views

Leaflet: Linking a marker click event to an image

I'm breaking down my question into three parts. I am a beginner to Leaflet and to writing code. Currently, I have a JSON file with all of my markers linked to my map page. The idea is that every ...
1
vote
0answers
271 views

View PostGIS geometry in QGIS

I am a newbie to GIS systems so please be patient. I have a PostGIS database set up with a spatial data table. One of the columns is of Geometry type and contains Points with SRID 4326. I want to ...
1
vote
0answers
50 views

code for finding gaps between polygon parcels

i am trying to write code for finding gaps between polygons, the idea is to convert polygons to polylines and checking the attribute table, each selected segment that shows two records in the tables ...
1
vote
0answers
92 views

About spatialite views and Attribute table

I try to use views with spatial column in spatialite. I can connect to spatialite database and load the layer without problems but when I try to view data in Attribute Table I can't get eny data; all ...
1
vote
0answers
180 views

SSHFS won't read / write ArcMap documents (.mxd)

I am trying to use SSHFS to access our file server and work on geographic data. I can mount the drive, get arc catalog to connect to the folder, and I can access and edit geodatabases and shapefiles. ...
1
vote
0answers
89 views

how to configure WebLogic server for ArcGIS Server 10.1

I wish to deploy arcgis services to a greater population via web maps, but before I do this I must install a web server. I am going to use WebLogic Server, it's used listed as a arcgis server ...

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