All Questions

0
votes
1answer
5 views

How can I modify the width and the precision of my database?

I have a database in txt format made of several columns of real numbers. Two column are integer, 17 are real (rounded to the first decimal) and 17 are real rounded to the second decimal. If I import ...
0
votes
0answers
4 views

QGIS: Separated, but combined polygons - unable to split. What determines that?

In Mapinfo it works well when splitting polygons if they are physically separated(non-combined). However, occasionally when conducting "multiparts to singleparts" in QGIS, some errors occur, although ...
0
votes
0answers
3 views

Confusing start times vs. time windows in Network Analyst

This is the snippet of my ArcPy script that deals with route-making: TechRoute = arcpy.na.MakeRouteLayer(inNetworkDataset, RouteName, "Minutes", "FIND_BEST_ORDER", ...
0
votes
0answers
3 views

Convert DateTime field to Just Date in Label Expression

I have a DateTime field (ex: CreatedDate) and would like to only show the date with the label. How would I setup the label expression to do this using python? Thanks in advance!
0
votes
0answers
3 views

Use Hibernate with Oracle and Esri St_geometry type

Can anyone tell me whether I could use Hibernate with esri ST_GEOMETRY type? I have found that Hibernate Spatial does support SDO_Geometry, but nothing for ST_Geometry. I am using oracle 11g and ...
2
votes
1answer
6 views

Troubles referencing fields in code block of Field Calculator

I'm trying to use values from a field to fill a new field with a truncated version. The 'str.rindex' function is working out well, but I can't seem to figure out how I'm supposed to reference the ...
0
votes
0answers
8 views

Programmatically Select a CRS in QGIS 2.4 using Python

When you run the following Python code in the Python Console of QGIS 2.4, uri = "file:///C:/data.csv?type=csv&xField=lng&yField=lat&spatialIndex=no&subsetIndex=no&watchFile=no" ...
1
vote
0answers
11 views

set extent for jpeg programmatically

I feel like this should be easy, but how can I set coordinates for a jpeg image using Python? I have a python add-in that draws a polygon and then uses its geometry to post a query request to a REST ...
0
votes
0answers
9 views

Geopandas/folium map not displaying

Good afternoon, I'm trying to use a combination of geopandas, pandas and folium to create a polygon map that I can embed incorporate into a web page. For some reason, it's not displaying and wonder ...
2
votes
0answers
25 views

Bug in arcpy mapping?

Has anyone else had this problem? I have an mxd file with two layers in it, one of which is fairly 'heavy' (i.e. takes a minute or so to draw). All layers are visible by default. I have the ...
0
votes
0answers
15 views

Adding Field to Attribute Table Error Message [on hold]

I am using Arc GIS and When I atttempt to add a field (via editor mode) to a table I get this error message "Can not add field to selected table/feature class because it is in use by another ...
1
vote
0answers
10 views

Rotate symbol base on polyline angle

I am using AcadMap to bring in .shp files for polylines. I have tickmark block at midpoint but it is at 0 degrees (straight up). Is there any way to rotate block angle to match polyline angle?
1
vote
0answers
18 views

Python script for dark object subtraction on Landsat 8 Imagery

Does anyone know of any python scripts that will allow me to conduct such a process? I am limited to open source software and have minor experience in Python.
1
vote
0answers
8 views

Publishing mosaic dataset to image service

I'm having problems publishing a mosaic dataset to an image service. While I can publish a service, the result does not carry over the pixel values (every cell is valued at 1.134274E+38). Strangely ...
1
vote
0answers
20 views

What is OGC encoding standards [duplicate]

What is OGC encoding standards? does it mean character encoding such as utf-8 or it means XML files as GML?
-3
votes
0answers
26 views

GeoServer supported Encoding Standards [on hold]

What OGC encoding standards that are supported by Geoserver?
0
votes
0answers
11 views

Geoserver secure layer assess issue via PHP proxy

I have a PHP script that sends request to geoserver layers. My layers are like this: topp:layer_unsecured topp:layer_secured layer_unsecured is unsecured layer and layer_secured is secured. I ...
0
votes
1answer
12 views

Non-standard WMS parameters not sent in GetMap requests via QGIS?

I am coding a python plugin to QGIS that connects to the UK National Biodiversity Network (NBN) Web Mapping Service (WMS). In general, I don't have any problems doing this with the QgsRasterLayer API ...
2
votes
0answers
15 views

Match housenumbers on buildings (special case of point-in-polygon-test)

Task with example I'm working with geodata (country-size) from openstreetmap. Buildings are often polygons without housenumbers and a single point with the housenumber is placed within the polygon of ...
2
votes
1answer
16 views

Error message: qgis_core.dll missing

I have a fresh install of QGIS 2.4. When trying to open a .shp file I get the error message below. I've followed their advice and have done several re-installs and also cleared all qgis files from my ...
1
vote
1answer
29 views

Gdal/QGIS resampling asc file

I have a DEM (.asc) file with a resolution of 1000 meters per pixel. Therefore the file has a lot of columns and rows. I would like to chance the resolution per pixel from 1000 to 3000 meters per ...
4
votes
2answers
40 views

Problem in importing arcpy.da

I am very new to GIS. I just installed eclipse luna with pydev plug-in and ArcGis 10.1 . When I write a script, trying to import arcpy.da.SearchCursor i see that no searchcursor is available. What ...
2
votes
1answer
59 views

How I can do event with two clicks using python add-in wizard?

How I can do event with two clicks using python add-in wizard, I have found a way to do event with one click by adding a New Tool in the wizard, but I need "first click To copy the attributes from ...
2
votes
0answers
10 views

How to put a piechart <Graphic> in <TextSymbolizer> of a Geoserver style?

I reckon that GeoServer layer label style has excellent feature of TextSymbolizer where text label can be positioned relatively on centroid of VISIBLE PART of polygon, as oppose to a geographically ...
1
vote
0answers
13 views

JSONP working with Leaflet time slider

I would like to integrate the time slider into a JSONP geoserver. Here is the current code I have http://jsfiddle.net/qcwcrwge/26/ and I would like to use the time slider with a layer called ...
1
vote
1answer
12 views

Center OpenStreetMap at Location defined in specific Projection

<body onload="init_gis()"> <div id="map" style="height:750px"></div> <script type="text/javascript"> var config = { init_lonlat : new ...
2
votes
1answer
16 views

OpenLayers 3 - draw multiple lines/paths based on coordinates

I am trying to draw a line(s) based on give coordinates (starting and ending point). Googled , found few examples but non of them seem to work probably because they are for OL2, so this is my last ...
1
vote
0answers
13 views

QGIS: Make added toolbar's buttons exclusive

I've added a toolbar to the QGIS mainWindow. Also i've added some checkable buttons to the toolbar. How can i now make my checkable buttons untoggle on QGIS default toolbars' checkable buttons press ...
1
vote
0answers
7 views

What is proper succession of coordinates while specifying TopLeftCorner in TileMatrix in WMTS?

While exploring various WMTS services, I've observed that sometimes x, y pair displayed in TopLeftCorner tag of TileMatrix tags defined in TileMatrixSet have succession changed to y, x. There are at ...
1
vote
1answer
16 views

Viewing Domain values as dropdown list in data grid in arcgis javascript api

I'm trying to view layer data in a data grid, everything is fine, but when the data contains domain values, its place stays empty, and does not view any data? any one can help how to view it? Or am I ...
0
votes
0answers
2 views

CartoDB createLayer function not working

I'm using cartodb.js on my website and it were working fine. But couple of days ago I found that cartodb layer is not loading properly. When I check the console in Firefox, I found this error ...
0
votes
1answer
11 views

Problem in adding raster layer from arcpy

I am using the following code to add the raster layer using arcpy in arcmap def AddRasterLayer(path,layerName): layer=os.path.join(path,'new'+str(layerName)+'.lyr') ...
2
votes
1answer
17 views

1m cell size equivalent value in decimal degree

I'm doing re-sampling pixel size in ERDAS 2014,I'm using input image(Indian terrain) in GCS_WGS_84 projection. Now I have to keep out put cell size as 1m,what is the 1m equvivalent value in Decimal ...
1
vote
1answer
15 views

How to display shapefile without map in Android?

I have a shape file which has some building data and I want to display that building structure in android I have checked nutiteq sdk but they are providing shp file on map not only shape file can I ...
1
vote
0answers
5 views

How to avoid background zero values in erdas imagine model maker? [duplicate]

Does anyone know how to avoid background black color/ zero value in background pixels in processed images using erdas imagine? Particularly in model maker. It's confusing in statistical calculation.
0
votes
1answer
13 views

Color Blend Mode for OpenLayers Vector Feature

Currently I'm developing a WebGIS app using OpenLayers 2.13.1, GeoServer, and PostGIS. The app has buffer analysis feature which is working fine like the picture below. What I'm looking for is: is ...
0
votes
0answers
10 views

Finding What version a PGDB is programtically

So i have a list of 681 personal geodatabases. I want to figure out what version (9.x, 8.x, 10.x) these things are. So i want to write a program that will read the filepath from a database table and ...
1
vote
0answers
8 views

Extract values to point - values not being extracted

I have a single band raster. When I use the information select tool I can see pixel values. I also have a shape file made up of points sitting over the raster. I want to extract the pixel values from ...
0
votes
0answers
20 views

how to batch reclassify rasters with percents range

Using Model Builder I need to reclassify slope rasters with percents range value. I have read and ask here batch reclassify rasters with different elevation ranges, but I still need more explanation. ...
0
votes
0answers
10 views

Does r.sun require x11 to run? [on hold]

I’m writing a script to that calls r.sun, but I keep getting the error Unable to access the X Display, is $DISPLAY set properly? Can r.sun be called without an X11 environment being installed?
1
vote
2answers
31 views

How to change field defined as REQUIRED to NON_REQUIRED in ArcGIS Geodatabase

I have created some feature classes in a geodatabase and also some fields using this sample code: arcpy.AddField_management("schools", "ref_ID", "LONG", 9, "", "", "refcode", "NULLABLE", "REQUIRED") ...
0
votes
1answer
21 views

Tools/Software for QA/QC of data

I currently have written a few custom scripts that run basic checks (null values, geocoding errors, fullness of metadata) using Arcpy(10.2 with almost all licenses) and gdal. I'm interested to know ...
2
votes
3answers
29 views

Removing small polygons gaps in a Shapely polygon

I know this issue has been addressed before with different software, but I am looking for an approach with Shapely. I have a polygon with a very small gap on the interior of the shape: Here is a ...
0
votes
0answers
20 views

Field Calculator QGIS: CASE WHEN [duplicate]

at first, sorry for my English. I'm using Google translator. I have a .shp file with attribute table. Like this... -- A -- -- B -- -- C -- QString Double Double Data ...
1
vote
1answer
18 views

How to find address in QGIS using openlayers plug-in?

Is possible to search for addresses using OpenLayers plugin in QGIS?
3
votes
1answer
24 views

Web Maps for Collecting Information in a Questionnaire

I am working with a Non Profit group who are looking for collect information around urban cycling routes. They would like to know the routes people take to get from point A to point B. I thought, ...
2
votes
0answers
28 views

Export PostGIS line to AutoCAD with graphical direction information

Some time ago I managed to export from PostgreSQL to AutoCAD DXF format a line (LINESTRING) using ogr2ogr program with a PostgreSQL Query, and it works (I can visualise it by the QuantumGIS). Now I ...
0
votes
0answers
20 views

Clipping MrSID raster image, without decompressing clipped raster, in ArcGIS Desktop? [duplicate]

I am using ArcView ArcMap10 and when I clip a raster using tools/data management tools/raster/clip. The Clipped file ends up much larger than the original file. Specifically I am trying to clip a ...
2
votes
0answers
19 views

Using arcpy.da.editor on a transactional version raising errors

I've run up against a wall trying to get an edit session to work on a version. These are the scenarios Ive gone through in the code and their error mesages: Setting up an edit session not as a ...
1
vote
1answer
20 views

Use QGIS plugins in custom standalone application

I am trying to create a QGIS custom standalone application. I want to add the Google Physical map from OpenLayers plugin to my application when it starts, but I cannot seem to be able to access ...

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