0
votes
1answer
449 views

Why do points shift when reprojected from WGS84 to a state plane coordinate? [closed]

We have a Trimble unit we use to collect equipment. We collect the data in WGS84 and differentially correct it and then reproject it to a state plan coordinate system. The points always shift the ...
7
votes
4answers
611 views

Is there a way to identify and remove similar GPS tracks in PostGIS or ArcGIS?

I have a large number of GPS tracks from a number of different users. I'd like to identify tracks that take the same route and remove those duplicates. For example, a user takes the same streets from ...
1
vote
2answers
1k views

Creating a 3D line feature based on 3D point features

In ArcGIS for Desktop 10.0, is it possible to create a 3D line feature by drawing a line that connects 3D point features?
5
votes
2answers
133 views

How to copy File Geodatabase, in its entirety, while it is in use?

I'm wondering if there is any way to duplicate an in use File Geodatabase? The Geodatabase I have is being used by ArcGIS Server for a few of our web mapping applications. I understand I could stop ...
6
votes
1answer
7k views

How to Export Selected Feature to New Shapefile Using ArcPy?

I currently have a search cursor iterating through a shapefile in ArcGIS 10.1 that selects a feature and runs a viewshed analysis on that feature (and only that feature). What's the easiest way to ...
0
votes
1answer
369 views

How to add offset to layer in OpenLayers?

As the title suggests,I have GeoJSON vectors on OpenLayers map where user should add X/Y offset (i.e 5 meters north,5 meters east).I plan to add some control for it. Since vectors are drawn map with ...
2
votes
1answer
139 views

Web map tool with high interactivity [duplicate]

I'm looking for an ArcGIS Online alternative. It needs to be linked to a private MySql server Use shapefiles Display attribute data and charts upon click/hover Toggle shapefile to display/disappear ...
0
votes
0answers
356 views

A procedure imported by 'Esri.FileGDBAPI.DLL' could not be loaded

I'm having issues getting my Esri.FileGDBAPI.DLL to work. I have the other two files, FileGDBAPI.dll, FileGDBAPID.dll in my bin folder. I can only add the Esri dll to my references, the other two I ...
2
votes
1answer
1k views

Create raster distance around a single point feature class

Okay, so I'm relatively new to ArcMap and I'm trying to use the Fuzzy membership for suitability test. I have a single point feature class that I want to use for this analysis. I know that in order to ...
1
vote
1answer
126 views

Writing length of line along the line

I sometimes have to write out the length along a line for every couple of hundred meters or kilometers. This applies to pipes, when the construction team wants to know where along the pipe they are or ...
2
votes
1answer
421 views

How to modify the coordinates of a SHP geometry using Geotools?

I have a shapefile with some polygons. I would like to change the height for this elements using Java. The rest of the attributes should be the same. I've thought using GeoTools but I haven't found ...
1
vote
0answers
22 views

Calculate complete spatial randomness using Python [duplicate]

I currently use the csr() function from Splancs for R (http://cran.r-project.org/web/packages/splancs/splancs.pdf) to calculate complete spatial randomness (CSR) points to be used for spatial ...
2
votes
3answers
1k views

How to Zoom and Pan using scroll wheel in ArcObjects?

is there any way to zoom using scroll wheel ? i have tried AutoMouseWheel of map control, it works well for the first used custom tool, but once i change the tool, it stops working , i would like to ...
6
votes
2answers
2k views

GDAL SQL syntax to add field an put values

I try to make a new field in my attribute table and put in values from another field after converting from character to integer but can't get the right syntax. I run this as shell-script in MSYS. cd ...
1
vote
1answer
693 views

How to Publish a Time Aware Mosaic dataset as an ImageService with Temporal component?

I have a Time Aware Mosaic dataset , which contains 5 rasters. I have entered the dates for the given rasters, by adding a Text Field with the dates. (The dates of the images are from 3/1/2013 to ...
-2
votes
2answers
2k views

How to use Raster Calculator in ArcGIS 9.3? [closed]

Raster Calculator tool is not available in ArcGIS 9.3 , so how to do in 9.3.??? thanks in advance
0
votes
1answer
158 views

How show filter image out of feature in other color?

I am using openlayer js to filter the features display. I am trying to show the filtered imaged in other color keeping rest of feature also. Following is the code i am using for filtering: var ...
0
votes
1answer
2k views

Mapinfo 10.5 and 8.5 compatibility? Unable to open TAB file

I have recently submitted some data to a client as a TAB file. They are using v8.5 and I am using v10.5, the data is just one .TAB (with the associated other files). And all the field types are ...
2
votes
0answers
136 views

Installing knn on PostgreSQL for windows

I am trying to install the extension KNN for clustering as an extension on my PostgreSQL database. I have downloaded the file http://www.pgxn.org/tag/analysis I found instructions on how to ...
2
votes
2answers
1k views

What is the problem with the polygon? Getting a *“found non-noded intersection”* exception error

I am working on a GIS program in which I needed to find the difference between the two polygons so, I decided to used NetTopologySuite (NTS) to find the difference. It seems to be working on some of ...
1
vote
0answers
35 views

severe thunderstorms warnings dataset for europe

I'm looking at the possibility of using georef data on historic thunderstorms alerts. Does anyone know of a good (free) source for this information?
1
vote
1answer
2k views

How to set Marker Line symbol for QgsVectorLayer by using Python?

QgsVectorLayer Right click->Properties->Style->Single symbol->click on simple line in tree node ->symbol layer type -> Marker line Kindly help me to set marker line symbol programmatically by using ...
2
votes
1answer
7k views

No. of Bands in the input Raster

I have downloaded a 7.5 min DEM . Now while I am trying to mosaic them it gives me an error saying "Input and target dataset should have the same number of bands" . How can I figure out the number of ...
2
votes
1answer
334 views

Calculating points in the USDA's Cropland Data Layer coordinate system

I need to integrate against the USDA's cropland data layer. They've got a demo and some API docs. The important query I need to run is this, given an (x, y) of say (1551459.363, 1909201.537): ...
1
vote
1answer
348 views

Maps with Clipping on ArcGIS Server

We are publishing raster layers (computed via kriging) to ArcGIS server 10.1. A significant feature of our local geography is a large body of water, in our case, Lake Michigan. Although I can clip ...
1
vote
1answer
1k views

display WMS layer from geoserver in mobile app with openlayers mobile

i try to display WMS layer from geoserver with openLayers Mobile,and its working great in the navigator (chrome) but its not appeering in the simulator device (android)... & with another WMS ...
5
votes
5answers
2k views

Which methods are most suited to classifying urban areas from Landsat imagery?

I am trying to use Landsat data to map urban extents over time. I need to perform a classification into built up / non built up areas. I am new to image classification. I have access to the following ...
2
votes
2answers
2k views

How to Add Shapefile with Symbology from Layer File to ArcMap MXD using ArcPy/Python?

Say I have a Shapefile: C:\DATA\points.shp A layer file: C:\SYMBOLOGY\symbology.lyr And a map document: C:\MAPS\map.mxd How can I add points.shp to map.mxd with the properties of symbology.lyr ...
1
vote
1answer
67 views

Is it possible to recover ArcGIS Online tiles of a zone, then reproject and republish them in a Map Service?

I'd like to use ArcGIS Online basemaps but not is the Web Mercator projection. Because of that I want to know if it's possible to reproject and republish them in a Map Service.
0
votes
1answer
617 views

psexec remote file execution with ArcGIS Server

This is perhaps going a bit out of bounds, so i'm not confident I'll get an answer. The short of this is that I've created a python script which leverages psexec to start a bat file on a remote ...
4
votes
1answer
419 views

Adding bike infrastructure data to OpenStreetMap? [closed]

Is there a best practices guide for adding bike infrastructure data to OSM? Not simply how to add a bike path, but a list of best practices for actually fleshing out sometimes disjointed bike ...
1
vote
0answers
139 views

Is there free desktop WFS client with BBOX support?

To troubleshoot WFS server (geoserver) with big dataset (global OSM btw) I have tried number of free GIS desktops which work on Mac: QGIS (1.8, 1.9dev), uDig, gvSIG - none of them seems to support WFS ...
3
votes
2answers
495 views

Getting “Failed to open tool” message when trying to run geoprocessing tool from C# code

I've been experimenting with the Military Aspects of Terrain Template, which has a toolbox associated with it. I've been using the following WPF Runtime code, which should open a tool in the ...
0
votes
1answer
335 views

“Request contains a format not offered by the server.” Error when using CRS transformation with WMS in QGIS

When I try to load a WMS layer which has a WSG84 as a default projection and use a CRS transformation on it, it gives this error message: Request contains a format not offered by the server. The WMS ...
0
votes
1answer
416 views

ArcGIS Javascript Legend Is not Showing

I am trying to add a legend, and it gets to the console.log, but it fails at on the line after it. It does not show any errors saying it failed, but it wont continue past that line. map[map_div_id] ...
1
vote
1answer
933 views

OpenLayers SelectFeature - Manually set feature as selected/unselected

In the OpenLayers SelectFeature, how can I manually set a feature as selected/unselected and have it reflect the appropriate color? For instance, when my application loads, it sends back the existing ...
3
votes
1answer
805 views

Setting raster cell value to null if below threshold value in ArcPy?

Why is my ArcPy script in ArcGIS 10.1 failing to set null cell values below three standard deviations beyond the mean? import arcpy, sys, os #Accept input and output raster inRas = sys.argv[1] ...
3
votes
2answers
123 views

How to develop a web mapping app to upload, process, and download results?

I would like to make a web mapping application where a user can import their own x-y-z data file, then the application applies filters that I write to it, contours the resulting data, then displays ...
3
votes
3answers
960 views

Adding group layer, renaming it from folder name, then adding layers to it from that folder, using ArcPy/Python?

I am trying to use os.walk to go through a directory tree, pull out all the .shp files in it, create a grouplayer in the mxd, rename the grouplayer the folder name, then add the layers from that ...
0
votes
1answer
536 views

ST_MakeEnvelope returning too many geos

I am using the following query in my db: SELECT bg_id, ST_AsGeoJSON(the_geom) FROM bg WHERE bg.the_geom && ST_MakeEnvelope(xxx, xxx, xxx, xxx); It seems to execute alright but when I draw ...
2
votes
2answers
113 views

Raster format to read with python

I currently have a DEM raster stored in an ESRI geodatabase. I've been asked to create a purely python (e.g., no arcpy functions) program that works with the values. Therefore, I need to convert the ...
5
votes
2answers
4k views

Saving currently opened mxd and changes using ArcPy?

Here is what I have so far... import arcpy import arcpy.mapping as map mxd = map.MapDocument() mxd.save() And yes I know that map.MapDocument requires an argument, but I want it to automatically ...
0
votes
1answer
242 views

What should I start with WebGis Mapserver?

I'm not native English Speaker and I'm a graduated student who want to have a master degree in software engineering. I have a thesis relative with "Build a WebGis for air pollution in Vietnam's ...
1
vote
1answer
66 views

Perform OpenLayers methods when outside images are clicked

Hi (I'm i bit new to OpenLayers). I'm trying to set up my OpenLayers map controls (e.g ZoomIn, ZoomOut) when images elsewhere on the page are clicked. Is this an issue of formatting a control panel ...
5
votes
1answer
513 views

Can we insert arbitrary HTML layers the ESRI ArcGIS JavaScript API?

We would like to implement a completely custom visualization to be included in a map, whose other layers we'd like the JavaScript API to control. This custom visualization would be updated by hand in ...
8
votes
1answer
132 views

Can Representations be used to Spatially Offset (Disperse) XY points for Web Mapping Application?

So I have a bit of an issue of points with the same x and y that I need to display separately from themselves. Here is some history of this issue: I have a database of incidents that happen over a ...
1
vote
1answer
588 views

Select features of layer which is not on top in OpenLayers

I have posted this question before on the general StackOverflow forum: http://stackoverflow.com/questions/16278569/select-features-of-layer-which-is-not-on-top In short my problem is that I have a ...
0
votes
1answer
359 views

Network analysis service areas vs. network analysis

i have calculated the distance of certain houses from public parks using both Network analysis service areas and network analysis. However each method provides a different distance. Would this be ...
1
vote
1answer
983 views

How to create a map with OSM and webatlas.de's WMS layer?

I spent hours trying to figure out the following problem, I hope someone can help me. You can see here that this WMS has different Projections available: ...
2
votes
3answers
909 views

ArcObjects identify tool [closed]

I'm using ArcGIS 10.1 and developing an application using visual studio 2010 and ARCObject SDK 10.1. I would like to use identity tool in my application and if not possible I want to execute a query ...

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