0
votes
1answer
1k views

Invalid topology error when running script

I am trying to run a python script and I get an invalid topology rule when I get to the feature to line tool. I am using arc 10.1 but I think the script was written in 10.0. I know it was built in ...
6
votes
1answer
563 views

How to reclassify raster data by their sign?

I want to do the following: I have two data raster sets with different units and values. One results from measured metric data, the other from modelled grid values. What I want to compare is simply ...
3
votes
0answers
121 views

Geoserver Raster layer cropped by polygon?

I've got a Geoserver raster layer which represents a satellite image. I use the Geoserver WMS to display the raster in OpenLayers. I want to display only parts of the raster - those within a certain ...
3
votes
0answers
386 views

Creating Ellipse in WGS84, but with metric parameters

I have the function --Ellipse(x,y,rx,ry,rotation,#of segments in 1/4 of ellipse) SELECT ST_Translate( ST_Rotate( ST_Scale( ST_Buffer(ST_Point(0,0), 0.5, $6), $3, $4), $5), $1, $2) I have points in ...
3
votes
0answers
963 views

Set Up Geoserver with .sid Files

I was given a folder of .sid, .sdw, and .sid.aux.xml files to use as tiles on our map. I'm pretty sure I can use ImageMosaic for this and have followed the doc at ...
0
votes
1answer
549 views

How to read/write a/from a file in javascript with prototype.js/jQuery.twFile support OR anyotherway

I want to write my data into a file from OpenLayers, I have gone through Prototype.js and jQuery.twFile.js or anyother way to write into a file.
1
vote
1answer
2k views

Wrong coordinates in data when projecting in world map (qgis) [duplicate]

Possible Duplicate: How to find the proper coordinate reference system with two sets of data using different measurements or too convert one system into another I'm fairly new to the GIS ...
5
votes
2answers
789 views

Spatial Analysis with Factors/Classifications

When doing analysis on spatial data with associated information that is numeric, it is possible to use techniques such as Kriging or Interpolation or Cluster Analysis to find out interesting ...
-1
votes
2answers
78 views

How to add items to the TOC without automatically displaying the items? [closed]

Is it possible to add items to the table of contents (ArcMap) without automatically displaying the items in the main window?
1
vote
1answer
1k views

How to use filter in GeoExt.FeatureStore?

I have a FeatureStore: var protocol=new OpenLayers.Protocol.HTTP({ url: ...
1
vote
0answers
509 views

How to handle/ avoid intersect errors when clipping the difference between two layers?

Using QGIS + Grass, I've added a shapefile of coastline and islands to my map. I then buffer this shapefile to create a coastal zone of a known width. At this stage the buffer consists of the ...
4
votes
1answer
2k views

How to read/write ENVI metadata using GDAL?

I am trying to use GDAL to read and write images in ENVI format (for example a .bsq file with an associated .hdr file). The GDAL Formats Info page states "Starting with GDAL 1.10, all ENVI header ...
2
votes
1answer
328 views

ArcGIS Desktop registry value under software key? [duplicate]

Possible Duplicate: How can I programmatically get the path of “Python.exe” used by ArcMap I am trying to get some information from registry about ArcGIS. I am using ArcGIS Desktop 10.0 and ...
3
votes
1answer
2k views

How to apply a graduated renderer in pyQGIS?

Just trying to run the following code already given in the pyqgis cookbook to create graduated colors symbology (as in example with 2 classes) I define the source info for the shapefile but when I ...
1
vote
0answers
834 views

WMS CQL Filter in Geoserver not working on adding to the layer

I draw in the init() function a WMS layer an add it to the map: var lyr_osm = {}; var map = {}; $(document).ready(function () { map = new OpenLayers.Map('map', { ...
5
votes
0answers
330 views

Geoserver create SqlView Layer with Geoserver Manager

I would like to register a new sql view layer to geoserver through the rest api. I am using geoserver-manager. The registration is ok, the layer is working fine, except wms getFeatureInfo, which ...
0
votes
1answer
2k views

Plot points using ArcGIS javascript api from co-ordinates

I would like to map co-ordinates that I got from the exif in photo's using my own command line tool that I made. As opposed to uploading your private photo's for everyone to see on flickr. How to I ...
1
vote
1answer
499 views

Why do I get 'KeyError: 0' when using Line Intersection tool?

I'm using Quantum GIS version 1.8.0-Lisboa and trying to create intersection point using Intersection tool. (Vector -> Analysis tools -> Line Intersections ) But when I do that for my shapefile, It ...
3
votes
2answers
12k views

Read specific column and row value from a text file using Python [closed]

I have a text file as following: 1.25 177. 1.50 220. 2.00 272. 5.00 427. 10.00 556. 25.00 763. 50.00 916. ...
2
votes
2answers
997 views

How to retrieve the mapPoint behind a PictureMarkerSymbol?

I am using ArcGis Javascript API 3.2. After instantiating a Point, PictureMarkerSymbol, attribite and an InfoTemplate, I use this code to plot a point on the map. var graphic= new ...
1
vote
1answer
290 views

Problem with server jsp geoserver

I want run jsp code in geoserver 2.2.3! I put page jsp in data_dir/www but it not run, html page run fine in data_dir/www! Please help me! Thanks!!
2
votes
1answer
5k views

How to convert a finished project in QGIS to PDF

I have finished my project and need to convert it into a PDF file. How can I do it?
6
votes
1answer
1k views

Add polygons to existing shapefile in QGIS

I'm completely new to GIS and this is a very basic question about editing existing shapefiles. I am working off an existing shapefile which was digitized (by a colleague) so that polygons represent ...
3
votes
1answer
4k views

Changing ArcGIS Server 10.1 port (6080 to 8080)

Due some network issue (Maps are not displaying in secure environment), I want to change the default port 6080 to 8080. I am going through Web help and few links in which they mentioned that install ...
1
vote
1answer
504 views

matching georeferenced jpg with GPS data in WGS84 [closed]

I have imported my georeferenced jpg which I believe (on the basis of metadata in xmml file) to be in the NZGD2000 TM coordinate system. metadata: Origin: 1.76759e+06,5.94938e+06 Pixel Size: ...
4
votes
2answers
635 views

How do I reduce the number of drawn polygons on an Android Map?

We're using spatialite-android and Nutiteq to render Archaeological datasets. One of our sample data sets has 7000 polygons that turn into 400,000 objects in our renderer. Is there a common GIS ...
1
vote
1answer
374 views

Vector title attribute can't display?

var vectormap = new OpenLayers.Layer.Vector('Overlay', { styleMap: new OpenLayers.StyleMap( { "default": new OpenLayers.Style({ ...
1
vote
0answers
169 views

setLayerDefinitions without defining layers?

I am working on a similar project to How to zoom to feature when clicking on drop-down list box item with ArcGIS JS API?, trying to filter the graphics on my map based on the user input into a ...
7
votes
2answers
796 views

Generate tiles for google maps overlays

I am trying to show some information on Google Maps which would be in the form of translucent circle overlays. The problem is that some circles overlap, which results in increased opacity and blending ...
6
votes
1answer
1k views

How to label a lot of nearby points?

I am currently working with a lot of points of which every point has to be labeled. I am already using the "Easy Custom Labeling" tool to move the labels and create lines to connect points with ...
0
votes
0answers
1k views

How to resample a raster in QGIS?

I've got a boundary file that I would like to resample the raster file from a 30m grid to a 10m grid inside the boundary file. When I try and do it in Qgis or Grass all I get is one big raster cube ...
4
votes
1answer
394 views

Why is the Frequency Tool in ArcGIS so Fast and Efficient?

Why is the Frequency tool in ArcGIS is so fast and efficient? Is it possible to make my own Frequency Tool with similar performance (in python)? I tried to do some based on python dictionary and ...
1
vote
2answers
897 views

Python module “shapely.wkb” missing

I am trying to follow a tutorial from here http://qgistips.spatialthoughts.com/2012/12/find-neighbor-polygons-in-layer-in-qgis.html#more I have downloaded the relevant python script and edited it as ...
1
vote
0answers
70 views

how to group interconnected edges inside a table?

Given a table and a random set of edges with source and target columns, how can I find out which edges connect with each other and then group them together using PostgreSQL?
1
vote
1answer
202 views

What are FLOOR and CEILIING in PostGIS designated for?

Just a short question to lighten up my understanding of some PostGIS-code: Regarding the creation of user-defined grids I often find the expressions CEILING and FLOOR. Like in this non-representative ...
1
vote
1answer
247 views

Does Web ADF 10 work with ASP.net 4?

I already have an ASP.net application using VS 2010 and .NET framework version 4 and ArcGis Server 10, and i need to add just a page, have map and toolbar. When I try to add map control and run the ...
7
votes
1answer
1k views

QGIS line style

I found the latest QGIS has a great tool to create complex styles, however looks like one small but very useful thing is missing, or I can't find it. I'm trying to create a line style something like ...
1
vote
1answer
458 views

Polygonize function doesn't overlay the shape file over the raster file

To convert the raster into a shapefile I use raster->conversion->polygonize but QGIS doesn't open the new layer overlayed the first (the raster) but reflected above it. I read this question ...
3
votes
1answer
533 views

color gradient (or color ramp) in Arcgis and Qgis

I am currently working on my thesis and I would like to ask you: does anybody know the mathematical formula that calculates the color gradient in Arcgis and Qgis? In other words, which mathematical ...
0
votes
1answer
119 views

Open source vs Proprietary [duplicate]

Possible Duplicate: What are the FOSS equivalents to these ArcGIS products? 'm especially interested in Open Source vs Proprietary decisions. Can any of the open source software for ...
1
vote
2answers
180 views

Error using Grass v.net

I'm trying to connect my network to a points layer with a threshold of 4500 meters. I have about 11000 or so entries in my polyline and about 24 in my points layer. I have alreday used v.distance, ...
5
votes
1answer
2k views

Where can I find High Quality Road Network Information

I am carrying out a research on how complex city road networks get and I need to get accurate map information. I started with openstreetmaps however I ran into a couple of issues: some of the dumps ...
0
votes
1answer
454 views

Esri Query Task service does not display

I am trying to make my way through some ArcGIS server Javascript API tutorials. My current issue is that when I try to display an Esri.Map, all I see is the "powered by esri" logo in the bottom right. ...
0
votes
1answer
473 views

tools for sorting/filtering based on map state

Im about to embark on a project that list restaurants on a map. Id be grateful to find out what the best tools for the job are? The restaurants will be in a list beneath a map. The list will be ...
0
votes
1answer
225 views

How to export settings for a network dataset

Is there a way to export/save the settings for a network dataset? Setting up the connectivity groups, attributes, evaluators etc can take quite a while, even for a small dataset. If the network ...
19
votes
6answers
4k views

How to make a GIS inventory?

My office will be seeing a big change in its GIS section. This section has been operational since the 1980's and has a huge collection of GIS data (i.e., shapefiles, raster files, data, etc) but never ...
2
votes
1answer
113 views

Is pre-1990 historical block-level census data available online?

I'm looking for historical block-level data for Chicago. According to this Census bureau document, historical block-level census data exists for major cities going back to 1960, and even back to ...
2
votes
2answers
2k views

Can I avoid setting up a proxy for geoserver, apache?

I'm using Apache (port 80) and Geoserver (port 8080) on Windows 7. I guess I need to set up a proxy if I want to use WFS, since they're on different ports. My kind of silly question is, can I avoid ...
1
vote
1answer
535 views

Displaying only points within a polygon I created in QGIS?

Thank you in advance for any advice you might give me. I am new to qgis and believe what I'm asking is probably fairly basic. I am trying to map policing activity in NYC for two areas: one area in the ...
1
vote
1answer
118 views

Should a GDAL Plugin be the same version as GDAL aready built into QGIS

Should a GDAL Plugin be the same version as the GDAL that's aready built into the QGIS version installed? Or,can another different version of GDAL be built and it installed as a Plugin for QGIS, ...

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