1
vote
0answers
30 views

Best Landsat band for forest classification?

Using Qgis and the Semi-Automatic Plugin for Classification, which are the best Landsat bands to use to classify trees species (in central Argentina)? In Landsat 5, 7 and 8?
0
votes
0answers
12 views

Generate tiles of World (Zoom 0-2), Germany (Zoom 2-12), Some Cities (Zoom 12-15)

I'm creating an offline navigation application. I'm using leaflet for displaying the map tiles. Right now I'm creating the tiles using Maperitive. This works great so far. But I can't open bigger ...
0
votes
1answer
29 views

MapInfo Tab Files - Which feature types are contained?

Without opening the TAB within a GIS package, is it possible to determine which feature class it contains? Could the TAB file be open in notepad and assessed for example?
0
votes
0answers
35 views

Exporting Excel to dBase (*.dbf) table gives error? [on hold]

I am trying to export an excel table to a dbf in ArcMap but it returns an error each time I try; what am I doing wrong? Also, what is a better option to use: dBASE or geodatabase table?
2
votes
0answers
33 views

Setting up qgis web client

I have a problem with setting up a qgis web client on remote server. I set it up on localhost and it runs smoothly, but when I done exactly the same on remote server it is just not working, even a ...
1
vote
1answer
24 views

Determine size of screen/map to limit number of markers displayed

I am writing a JQuery Openlayers javascript web application that connects to a API, which exposes a million geo located points plus metrics and information about the points. One metric is a points ...
1
vote
2answers
39 views

Row-crop field boundaries

I'm on the hunt for field boundary coordinates in the US in the form of GeoJSON, a Shapefile or any structured format that I can use to overlay on a map. I've tried looking at the US Department of ...
1
vote
0answers
34 views

Converting table drawn as annotation in AutoCAD to format suitable to link attributes to cables in ArcGIS for Desktop?

I am working on cables and each cable has attributes. I want to link these attributes to the cables in ArcGIS for Desktop. When I open these cables in AutoCAD it appears that their attributes are ...
2
votes
1answer
33 views

CartoD3 chart not displaying - CartoDB

I have tornados table with columns damage,date,month . I used the following code to create a barchart . <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" ...
4
votes
0answers
34 views

arcpy - ascii encoding error when updating field content in SQL Server table

I know there are plenty of posts and blog explanations about unicode errors, but I still can't figure out to handle it in my particular case. So here is my problem: I am writing a Python script to ...
1
vote
0answers
8 views

custom SVG label style - openlayers

My goal is to display rotated labels for roads on my openlayers based webmap. The problem is actually solved (with a custom SVG solution), but i have some problems with the styling of the labels. As ...
2
votes
1answer
28 views

Refering to 0° of longitude/latitude in a range

This is more of a question in diction... In scientific writing, is there a preferable way to write a range, bounded by 0° longitude, in a way similar to "5° W to 10° E" if there is no cardinal ...
1
vote
1answer
26 views

Converting WGS84 points to a 2D x,y point (plotting)

I have been trying to convert the WGS84 style geo-positions to x,y coordinates on a 2D plane. I have looked into many different links, websites, studies and I honestly gave up on finding a plane copy ...
2
votes
1answer
28 views

Atributing fields in arcmap and excel

How do I populate a field in ArcMap (and Excel) with only a specific part of another field's attributes? For example: I want to populate the LATDEG field with only the degree part of a latitudinal ...
0
votes
0answers
12 views

can widget developed by ArcGIS API for flex as an add-in?

I am currently involved in a project needs me to develop a widget using ArcGIS API for flex. It will be integrated to an existing web application. I am confused now because I haven't touch the ...
2
votes
1answer
32 views

PyQGIS - Start/Stop Editing with data Provider - Commiting changes

I want to edit a specific field for a QgsVectorLayer, within a QGIS application. I am facing inconsistent results from my code, ie: changes are not alway commited. Please could someone point me to ...
1
vote
1answer
11 views

OpenLayers feature styling change by the baselayer

How can I have the style of the features on a vector layer depending on the OpenLayers' "base layer"? For example, some base layers are dark images and I need (for the contrast) the features to be ...
-1
votes
0answers
18 views

Importing OpenStreetMap (OSM) file into MySQL using Osmosis? [duplicate]

I've been trying to importing osm file into mysql using osmosis, but still failed.
1
vote
0answers
17 views

Postgis Raster Unions Color Issues

Can someone explain to me what I am doing wrong here as I think I do not properly understand postgis raster bands. I have a set of geometries that I want to merge with a raster and created a raster ...
2
votes
1answer
27 views

Error reading Esri Grid format using GeoServer?

Using GDAL I can extract information from an ArcGRID raster, just by giving the name of the grid folder: gdalinfo -stats grid_folder All the statistics show up. I have tried with many arcGRID files ...
4
votes
1answer
63 views

How do you set the position of a plugin window when you start the plugin?

I'd like to set the position of a plugin's window or dialog relative to the map canvas frame. For example, if I start a plugin, I want it to appear somewhere in the left upper corner of the map ...
3
votes
1answer
21 views

Update value in domain and same should reflect in attribute field

I have a SDE GDB, where i have no. of domains created. we have created domain for state names, which is used by all feature classes to update their respective state name. Now i have discovered that ...
2
votes
2answers
30 views

Looking for Melbourne and Canberra metropolitan suburb shapefiles / ABS coded lists

I am looking for shapefiles or a list of suburb names for Melbourne and Canberra. I have ABS shapefiles, but I need to filter that to end up with only metropolitan suburbs. My shapefile has codes in ...
4
votes
1answer
164 views

How to calculate X and Y projected coordinate in batch processing

I have more than 1000 shape files (all are point features). They were initially in WGS 84. I projected them in UTM. Then through batch processing I added X, Y fields in each table. But all the X, Y ...
4
votes
1answer
30 views

How to read binary rainfall data (*.trm) in ArcGIS for Desktop?

I have some *.trm binary data that is merged Tropical Rainfall Measuring Mission (TRMM) rainfall data. I have to read it through ArcGIS for Desktop to extract rainfall data from this.
3
votes
0answers
41 views

QGIS field calculator expression

I am new to QGIS. I am wanting to calculate a field using other fields and some operators. Here is my expression: case When "RVM_CAT" = 'B' OR "RVM_CAT" = 'C' Then ("PC1" /100) * "RE_ha" When ...
3
votes
2answers
193 views

How to draw circle of 3 km radius in ArcGIS for ESRI?

I am able to draw the circle but I want a circle of radius 3 kms I have checked all the previous posts. I want to know what is the units of radius in the below code. var radius, circle, ring, pts, ...
2
votes
1answer
24 views

Problem saving added point to GeoServer WFS-T via OpenLayers?

I want to add a point and then with WFS-T, save this to db. I work with Openlayers and GeoServer. saveStrategy = new OpenLayers.Strategy.Save(); wfs = new OpenLayers.Layer.Vector( "WFS Vectore", { ...
1
vote
0answers
21 views

ArcGIS No font options for Character symbol

I can't get the font options to display when trying to use character symbol in ArcMap. This problem is local to my machine only. See screenshot below. ArcMap 10.2.2 & Windows 7 Enterprise 64bit ...
1
vote
0answers
15 views

Contour generation using Interpolation - Correcting edge Effects

I utilised the Interpolation feature in QGIS to prepare contours from a DEM I had generated. Sometimes when contours intersect the edge of the DEM area, they run along the edge for some distance. ...
1
vote
1answer
22 views

Running ArcGIS Data Reviewer using ArcPy?

I want to run the ArcGIS Data reviewer in Python code, to check domains. My scenario is check the attribute values if its meet the domain value. Is it possible to run ArcGIS Data Reviewer in ...
1
vote
0answers
7 views

cartodb search box when creating a visualization at runtime

I know that it is possible to add the CartoDB search box when you link to a visualization such as this. However, I have a map which is created at runtime, using the same method as here. Does anybody ...
1
vote
1answer
26 views

ArcMap trace the creation/modification/deletion events by windows user for all changes (not only the latest change)

I want to check whether there is a way to trace all the creation, modification and deletion events in the editing session. What I aware now is how to get the latest updated information of an object in ...
2
votes
1answer
37 views

Spatial joining syntax

A standard PostGIS point-in-polygon query might look like this. (example tutorial) SELECT p.*,b.polyname FROM points p, shapes s WHERE ST_Within(p.the_geom,s.the_geom) Imagine this was not a ...
4
votes
3answers
26 views

How do I use the Terrain with Labels basemap in the Map constructor

Seems like all the other basemaps can be used in the esri.Map() constructor, but this one doesn't have a corresponding entry in the list of acceptable values. I've tried just "terrain", and it didn't ...
0
votes
0answers
24 views

How to add new columns with attributes in existing Qgis layer?

How to add new columns with attributes in existing Qgis layer? Doing the "same thing" here described
1
vote
1answer
37 views

Is MongoDB more suitable than PostGIS as backend for geo-enabled Django website?

I am trying to select a backend for a geo enabled website written in Django. Is MongoDB an easy possibility or stick with PostGIS? What are the key considerations to choose one or the other if ...
1
vote
1answer
24 views

How to display features one by one in Map Book?

I'm using "Data Driven Pages" Tool to create a map book in ArcMap. I want to display buffer circles one by one in each page, but the "Data Driven Pages" Tool displays all features around it. How can ...
1
vote
1answer
14 views

Sending e-mail on feature update in ArcGIS JavaScript application?

We have an ArcGIS feature service that users can edit to change a "project status" attribute. An example would be a change from "pending" to "in-progress". Certain groups need to be notified when ...
1
vote
0answers
21 views

Water grey levels - remote sensing

by viewing two bands in erdas imagine the grey levels of the water differ. on the one image as below the water is dark and the other image the water is light. why is that? what cause the ...
2
votes
0answers
21 views

How to select by location with multiple source layers?

I would like to script the selection of the square that contains both the orange and green points, but not the squares with any other combination of points including white points. I am very familiar ...
1
vote
0answers
18 views

Minimum Bounding Box by Area using ArcObjects

I'm trying to calculate the minimum bounding geometry by area for a polygon in arcobjects. I know that the the MinimumBoundingGeometry class is exposed but I was hoping that this functionality was ...
0
votes
1answer
21 views

model only runs open “modelbuider”

I am using ArcGIS 10.2.2 for Desktop. I have a model made in ModelBuilder which currently does: input XY coordinates excel table data display XY event converting a format event shape add field ...
2
votes
0answers
20 views

Use of postgis with hibernate

We have an existing postgis database. Our application is developed in Java, but queries database through a jni dll, which appears to be not very effective for our purpose. I've managed to migrate to ...
3
votes
0answers
17 views

How to update a field in one geodatabase table via a join to another geodatabase table?

I have 2 tables in a file geodatabase and I need to update a field (via ArcObjects) in the first table with a field in the first. Basically, the equivalent to SQL Server's update statement: UPDATE t1 ...
0
votes
0answers
12 views

A global, grid-like projection for creating heatmaps

I'm putting together an application where I need to create a vector grid which will be used to store and display a heatmap. It has the following requirements: Can cover the entire planet. The vast ...
2
votes
0answers
23 views

How do you clip a gnomonic or stereographic azimuthal projection?

I have polygons comprised of lat/lon coordinates and I want to project them onto a plane that's appropriate for polygon operations (such as checking for intersections). In some cases, the polygons ...
3
votes
1answer
68 views

Reverting QGIS to version 2.2 from 2.4

I have QGIS 2.4 installed on a machine running Windows 7 64-bit "by accident". I was using 2.2 and when I added some package(s) it also installed the 2.4 version. Can anyone provide some advice with ...
1
vote
1answer
25 views

Best practices for sharing feature classes between different geodatabases

We're starting to work on different projects. All of them have their own data and classes but some of them are common (ex. parcels, traffic, road definition, etc.). What are the best practices for ...
0
votes
0answers
19 views

OpenGeo Explorer error publishing layers to geoserver

I want to use Opengeo Explorer to publish layers to geoserver but i am getting an error report. I create workspaces with no problems and i publish styles with no problems. Can you pls help? Error ...

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