9
votes
1answer
410 views

File Geodatabase API .NET Wrapper: How to determine if Table/Feature Class Is Locked?

I have been using the file gdb api .NET wrapper, and it has suited my needs quite nicely (vs using ArcObjects). One of the things I have yet to figure out if there is a proper way to determine if a ...
6
votes
1answer
520 views

How to read Geotiff tags and pixel per pixel values using GDAL C#

I'm new here and I'm new at programing with GDAL C#. My question is how I can get the value of SRTM GEOTIFF pixel to compare with it's neighbors, and how can I get the values of Geotiff tags.
5
votes
1answer
328 views

Calculating Topographic Exposure with Raster Calculator

I need you help trying to calculate Topographic Exposure (TOPEX) on a DEM in ArcGIS. I am trying to figure out wind exposure on a DEM with 25m cells. There is a great blog post where someone explains ...
4
votes
1answer
224 views

How to change field name in raster file?

I´m having a bit of an understanding problem with a DEM TIF file. I have a DEM TIF file which is served with Geoserver. When I click on the layer the WMSGetFeatureInfo gives me the following output: ...
3
votes
1answer
46 views

More efficient way to get the start and the end points of a line (arcpy)?

I am collecting start and end points for a large polyline feature class in a file geodatabase. I am using arcpy, ArcGIS 10.3, Python 2.7.3 64-bit and a 10.3 compressed file geodatabase with just one ...
3
votes
1answer
204 views

How to get the coordinates of a Drag Box ? (OpenLayers 3)

I'm pretty new to Openlayers and I have a problem.I can draw a rectangle using DragBox on my OpenLayers 3 map. How can I get it's coordinates? I tried getGeometry() but it returns 'null'. I think I ...
3
votes
1answer
393 views

mosaic raster to file geodatabase yields missing raster sections

Since upgrading to ArcGIS 10.1 (SP 1) from 10.0, I've been encountering an issue when running the arcpy.MosaicToNewRaster_management() tool with output to a file geodatabase. I'm principally working ...
3
votes
1answer
293 views

Can ArcGIS handle missing values to create a contour map?

I am trying to create a contour map for a waterbody. It turns out that in several locations there is no data. I just don't want to use the missing values as zero in ArcGIS because it would create ...
2
votes
1answer
21 views

Create field on open ArcGIS map - not saved

I am using ArcGIS desktop with an SDE feature layer with enterprise data that I do not have rights to edit. The data changes weekly but I need a field that is sum of 2 current fields without creating ...
2
votes
1answer
13 views

How to choose a derived attribute as a parameter in FME?

Is it possible to have an FME parameter read attributes from a feature class that has been defined in a previous attribute? So, in other words, I when selecting the Prompt and Run option, the user ...
2
votes
1answer
61 views

How to create buffer on one side of a stream in ArcGIS?

I need to create a buffer around waterfront park sites. But I only want "half" of the buffer --- the "half" that coincides with the side of the water body where to park is. In addition, the buffer of ...
2
votes
1answer
849 views

Google Maps OpenLayer plugin not zooming in or panning

So recently I've noticed that the OpenLayer plugin for Google Maps (Google satellite, physical etc) is not allowing me to zoom into the specific area I require. Everytime I try and zoom it pans back ...
2
votes
1answer
375 views

ArcGIS Online map labels do not appear in ArcGIS app for Android?

I have a map on ArcGIS online. The map shows labels just fine as you can see on my web map (http://bit.ly/1q7hc0h). The problem is that when I view the map on may Android device using the ArcGIS app ...
2
votes
1answer
166 views

How to create an SQL Persisted Computed Column which values are derived from spatial column

Our GDB is using the SQL native GEOMETRY data storage type (SQL 2012 Standard) and the spatial reference for this uses a unit of square feet. I want to create a (persisted) computed column which will ...
2
votes
1answer
175 views

How can I add grid lines to a print composition using pyqgis?

I'm writing a qgis plugin to create an image in the print composer of the current map. I can get the map rendered in the proper place with a frame of the right width, and I can get grid annotations ...
2
votes
1answer
286 views

Folium GeoJSON Overlay Not Appearing

I am in the midst of a task which involves the clustering of assessment neighborhoods into larger neighborhoods (data link). The goal is build these neighborhoods in a manner consistent with major ...
2
votes
1answer
219 views

Geoserver configuration for large layers

I'm having problem with geoserver configuration. Currently I'm running geoserver 2.4 on CentOS and Tomcat 6 with 24 cores CPU and 48 GB RAM. I have uploaded 4 layers to PostGIS (PostgreSQL 9.3/PostGIS ...
2
votes
1answer
569 views

How to read Binary overlay (*.ovl files) data programmatically

Currenlty, Im dealing with binary Overlay files (*.ovl files) and I needed to read them byte by byte and display the content in a possible way. I came to know that there can be ASCII and Binary ...
2
votes
1answer
130 views

why distanceTo gives different results?

i am trying to get distance between two polygons and somehow i get different distance, depending on how I call distanceTo a.distanceTo(b) != b.distanceTo(a) should it be like that? ...
2
votes
1answer
665 views

How do you format an OGR VRT file to best convert a CSV to KML?

I am attempting to get a nice KML for simple review of POI/geocoding from a CSV. I a using ogr2ogr and a vrt. You can see the vet file below, with two attempts to get this right. Basically, the issue ...
1
vote
1answer
13 views

Buffer for features selected in the mapcanvas and writing to csv file

I have some features selected by using "Select Features by Freehand" tool in QGIS and try to find the buffer for those selected features alone and write the city and state names within in the buffer ...
1
vote
1answer
16 views

How to select from selection with PyQGIS?

The expression box has a handy "select from selection" button. Is there a way to emulate this with python? I have the basic expressions down, but can't find a way to do this.
1
vote
1answer
37 views

Eliminating interior lines of Polygon without Dissolve

I am trying to find a way to create one polygon from separate polygons but I need to eliminate the interior lines without using the dissolve tool because I need to keep attribute fields. I tried ...
0
votes
0answers
16 views

ArcGIS JavaScript API JSONP request

I am trying to add featues to esri.layers.FeatureLayer from response of JSONP request with esri.request. Interestingly I have right response and all features are perfectly shown on the map,BUT I get ...
0
votes
0answers
4 views

How to import Esri Raster to IDRISI with NoData value?

I made some point features in ArcGIS Desktop to build training samples to import to IDRISI. I had 7 classes and convert the feature to raster to build the signature in IDRISI. When I import the data ...
0
votes
0answers
12 views

Extend/change Leaflet Marker class to put DivIcon markers in another map pane

Leaflet uses different panes for different content. Markers are in the markerPane div and Popups are in the popupPane. I find the DivIcon class a lot easier to use than the custom layer because of ...
0
votes
0answers
18 views

Problem with QGIS - Attribute names are shown as _1,_2,_3 … and Strings are displayed as “NULL”

Whenever I look at the attribute table or at the attribute dialog for a shape, the attribute names are shown as _1,_2,_3, ... In the attributes, Strings are generally displayed as "NULL". Numbers are ...
0
votes
0answers
11 views

Aligning to DEM after TIFF conversion to GRID?

I can convert a TIFF (NASS Cropscape) by using Create Raster in my .gdb or Export to other Format. However, all efforts to align the extent to an existing DEM have escaped me! I have tried Snap ...
0
votes
0answers
16 views

Why processing.runalg(“gdalogr:rasterize”…) is not creating out files when running in the QGIS 2.6.0 console?

I want to the QGIS python scripting functions to turn to rasterize a point vector using many different dimensions. Right now my code looks like this: import processing RasterPixelSize = ...
0
votes
0answers
15 views

ESRI internal process fails using data created by ESRI — suggestions?

We have a complex process where we compute the distance a boat will travel. We then take our waterway rasters, apply any blockages and delays to them, and create the FullCostArray to get the time it ...
0
votes
0answers
27 views

In QGIS heatmap howto establish a fixed maximum range value for comparisons over time?

I have several data sets that represent a type of activity within a specific geographic boundary. Each heatmap I create shows the relative activity spread nicely, but I have been frustrated in my ...
0
votes
0answers
3 views

OpenLayers 3, how to stop select interaction without unselecting all features

I use interaction: var select = new ol.interaction.Select({ layers: [my_layer], style: new ol.style.Style({ fill: new ol.style.Fill({ color: '#A00000' }), ...
0
votes
0answers
15 views

Leaflet: Map focus issue after enabling a custom ZoomToArea control in Firefox

I'm trying to add a Zoom-to-Area control to Leaflet by extending the built in Control.Zoom plugin, but I'm fighting some "map-loses-focus" issue that affects only Firefox. The function works as I ...
0
votes
0answers
16 views

String parameter not passing correctly to GP service

I have a model where the user selects a string from a drop down list which is used to select a building point and run a series of trace operations. This works fine on desktop, but keeps returning the ...
0
votes
0answers
23 views

Unable to save edits. Raster dataset already exist

When I edit my attribute table then I try to save edits but one error mesage appear on my screen "Unable to save edits. Raster dataset already exist". I really wonder why this error message appear?
0
votes
0answers
14 views

Geospatial Modelling Environment - Error: ESRI license could not be acquired

I have been using GME all day and for one area (in the same session) I get the message: Error: ESRI license could not be acquired. I am using ArcInfo all the time. What can be the problem & how to ...
0
votes
0answers
2 views

Binding JqxGrid and Openlayers map

I want to represent the layer features in Table format using JqxWidgets. How to bind the jqxGrid with Openlayers 2.x map (i.e., WMS layer). Please help out this.
0
votes
0answers
24 views

How to organize database with objects having GPS coordinates (in radians)

I have a huge database of different objects organized in tables. For instance photos in one table and metadata of each photo in other. Most of them have their GPS coordinates in radians stored as a ...
0
votes
0answers
20 views

What exact format do I need to have for the inputs to make Path Distance work?

I am trying to run the Path Distance tool in ArcGis 10.1. Ideally I would like to utilize Tobler's hiking formula anisotropic approach to slope and a land cover cost surface to calculate the least ...
0
votes
0answers
13 views

GeoNetwork not displaying all harvested metadata with Dublin Core schema

I have a GeoServer 2.6 installed with the CSW plugin. I can make a call to GetRecords using the standard ISO19115/19139 schema and see all of the metadata. My main interest here are keywords that I ...
0
votes
0answers
32 views

Fetching postgis data through php json and passing to leaflet map

I am new to this and trying to explore leaflet and geojson a bit. Please help me with this. This is my php page which I am using to fetch data from PostGIS. (the data opened successfully in the ...
0
votes
0answers
25 views

QGIS2Leaf - Limiting the number of features loaded

I'm using the awesome QGIS2Leaf plugin. As others have noted, Leaflet slows down when the number of features becomes too large. ...
0
votes
0answers
25 views

setting null values to 0 Landsat 8 Grass 7.1

I am working with Landsat8 images and need to run the albedo function in Grass 7.1.svn. In order to do this, I need to set the null values to 0 to eliminate the black border around the images. This ...
0
votes
0answers
11 views

How to visualize insolation rasters over color orthophoto in grass

I have generated insolation time raster map using DSM, slope, aspect for day 100 and time 10.95 hrs using r.sun module in grass. The output insolation raster map (color table) i want to overlay on ...
0
votes
0answers
44 views

Couldn't load plugin processing in QGIS: Access is denied for R

Couldn't load processing plugin due to flowing error. Any help? thanks. Couldn't load plugin processing due an error when calling its initGui() method Traceback (most recent call last): File ...
0
votes
0answers
63 views

Cause of MODIS Reprojection Tool errors?

I have installed the MODIS Reprojection Tool (mrt) and it says the installation completed successfully but it does not mosaic my images properly. However, there seems to be some projection errors. ...
0
votes
0answers
106 views

Error: .asc is not a supported raster data source

I am new using QGIS and struggling with this error "...... .asc is not a supported raster data source" when trying to add a ."asc" file as a raster. I downloaded the files from ...
-1
votes
0answers
5 views

table name not updating

I enter data view, update the table name in metadata, save it but the table name never changes. Have been having this problem for a couple of weeks now across several different tables.
-1
votes
0answers
17 views

How to use a vector tiles with MapBox?

I want to show a vector data in Mapbox.js application. I found some examples where use pbf files. But i can't find any ways how can i generate a pbf file. Just found osm data in pbf format: ...
-2
votes
0answers
22 views

How to set NULL value by arcpy.da.InsertCursor on date column?

How to set NULL value by arcpy.da.InsertCursor on date column? I try insert "NULL", None, '', 0 dictIN= [{'field1':"test1",'date1':'01-02-2015','date1':''},\ ...

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