A geospatial standards organization known as the Open Geospatial Consortium
10
votes
3answers
243 views
What does it mean “GML is an XML grammar”?
I'm trying to get my head around the theoretical side of XML and GML. The OGC web page for GML states that:
The Geography Markup Language (GML) is an XML grammar for expressing
geographical ...
8
votes
2answers
694 views
How to secure WFS services?
first time posting here..
Im currently tasked with finding a way to deploy wfs services to a number of clients. The services could be consumed by both desktop GIS software eg. MapInfo/ArcGis or by ...
8
votes
3answers
149 views
are there UML models of the OGC standards available online (native files not pdfs)
Last time I checked, there were only PDFs with class diagrams available on the net (downloadable for at least 140 swiss francs a piece) , but not the UML models in a native format of a database ...
8
votes
3answers
255 views
Is there an exhaustive, searchable catalog of all GIS web services (e.g. OGC WMS/WFS, REST, SOAP)?
Many of us have struggled to get a list of GIS services that are available on the internet. Specifically map services that expose OGC based interfaces like WMS, WFS or Web Service interfaces like ...
8
votes
1answer
296 views
What options are available for free Web Processing Service (WPS) client?
A number of products seem to be implementing the server side of the OGC Web Processing Service (WPS 1.0.0) and these are listed here.
However, for the client side there are fewer options.
Has ...
8
votes
1answer
121 views
Why is the OGC Symbology Encoding standard not being implemented and is SLD an alternative?
I searched exhaustively over the internet as well as at this How to export Symbology from ArcGIS to Microstation or QGIS? but didnt find a satisfactory answer. Hope to get the answers from the experts ...
8
votes
0answers
170 views
Driving Zone Computation using Web Processing Services
I am currently evaluating different OGC Services(WFS,WMS and WPS) for driving zone computation. As I am new to WPS services, I would like some suggestions regarding which OGC services to implement.
...
6
votes
2answers
1k views
OpenLayers filter: OGC (xml) or CQL?
While having not used filtering that much in OpenLayers, we are discussing which type of filtering we should use: The OGC XML filter or the more simple CQL filter?
Are one of them more appropriate ...
5
votes
2answers
629 views
Should I use WFS, WMS or SOS considering performance and security?
My task is to develop a web application which will visualize the temporal data on map and produce a kind of data flow (or animation) from the images/data which have been received from server.
For ...
5
votes
1answer
343 views
STGeomFromText not working on large polygons
I'm using Microsoft.SqlServer.Types to do intersections on polygons.
SqlChars scFullSwath = new SqlChars(new SqlString(fullSwath));
SqlGeography fullSwathGeom = ...
5
votes
0answers
129 views
What are the differences between the OGC and ISO WKT/WKB specification?
Are the OGC-Simple feature access and the ISO (ISO/IEC 13249-3:2011 "Information technology - Database languages - SQL multimedia and application packages - Part 3: Spatial") significantly different ...
4
votes
4answers
1k views
How many WFS-T clients exist?
I would like to know which applications or libraries (proprietary or open source) offer transactional Web Feature Service (WFS-T) client functionality. Those include:
Desktop or online applications ...
4
votes
1answer
504 views
What's up with the GeoJSON spec and CRS as a IRM?
I'm writing a web API to our GIS data, currently revamping our geocoding service. I'm creating the option for folks to specify the output type as GeoJSON so I'm trying to follow the spec. Our data is ...
4
votes
1answer
148 views
Geometry Operands - BBOX vs Within - What's the difference?
What is the difference between the "BBOX" and "Within" spatial operators.
Can anyone please shed some light?
4
votes
1answer
75 views
How to display some Ushahidi's layers (WFS) in my Web portal?
I'm working on a VGI Web portal. I'm using OpenLayers and the application is running throw the TomCat server. I would like to know if it's possible to display layers from Ushahidi or others VGI tools ...
4
votes
1answer
127 views
How to automate downloading “slices” of data from Web Coverage Service (WCS)?
I'd like to automate downloading "slices" of data from a WCS service. This is a WCS 1.1.2 service, supporting netCDF. The data are updated daily - forecasts from an atmospheric regional model - and ...
4
votes
1answer
197 views
Are there any Geospatial OData Feeds?
I see that OData V3 has support for geospatial types.
Has anyone published a feed that uses the new geospatial data types?
3
votes
3answers
679 views
Open .NET implementation of the OGC Geometry Object Model from Simple Feature Access 1 specification?
I am looking for a .NET implementation of the geometry object model described in OGS's Simple Feature Access, Part 1 specification.
Preferably lightweight. I don't need WKT support, just the ...
3
votes
2answers
2k views
OpenLayers: Combine multiple OGC filters
I have two OGC filters client side:
<ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
<ogc:PropertyIsEqualTo matchCase="true">
...
3
votes
1answer
193 views
SQLServer generating invalid WKT
I am a GIS novice using SQL 2008, with C# and the NetTopologySuite WKTReader type to work with some geometries.
I have some data which I have been able to save into the database but when I read back ...
3
votes
1answer
79 views
OGIS Ole Db provider sample with read/write capability
I'm trying to determine what level of effort would be required to develop an OGIS Ole db provider for ArcGIS.
There is a sample that is read-only. I would like to be able to edit featureclasses in ...
3
votes
1answer
158 views
MapServer SOS (Sensor Observation Service) Configuration
I tried to set up MapServer SOS but I faced a problem: the SOS doesn't return anything. You may see the map file I have created below:
MAP
NAME "SOS_DEMO"
STATUS ON
SIZE 400 300
...
3
votes
1answer
188 views
ArcGIS Desktop - Web Services Definitions
Aside from .LYR files, is there a file format (preferably open) for defining web service endpoints for Arc products?
For example, if I publish a WMS feed, can I provide a downloadable resource for ...
3
votes
0answers
107 views
ArcGIS and SqlServer.Types: Does feature.Shape.SpatialReference.FactoryCode == srid?
I created a test implementation of the ESRI Geometry to WKT recipe provided by @SagebrushGIS. It seems to work great, but I'm wondering if the SRID value expected by Microsoft.SqlServer.Types ...
2
votes
1answer
95 views
How do I allow users to download a GeoTiff on my web map
I am hoping to get help with what I need to do in order to allow a user on my OpenLayers map to download a portion of a GeoTiff they are viewing through a WMS. The data is hosted through GeoServer. I ...
2
votes
1answer
46 views
What is the correct spelling: CSW or CS-W?
In different publications I read sometimes CSW or sometimes CS-W for the standard of transferring metadata-documents. What is the correct 'official' spelling?
2
votes
2answers
125 views
Any source code for converting an infix filter to a WFS filter?
A WFS GetFeature query looks something like this:
...
2
votes
1answer
448 views
Convert SqlGeometry data from SQL directly to Tiles / PNG file
I would like to know a basic method for 'exporting' SqlGeometry data from SQL Server 2008 to a Tile Server / PNG File generator. I already have a Silverlight Map application which uses a Custom Tile ...
2
votes
1answer
133 views
Reading OGC geometry data from SQL server using R
I would like to write a script in R that creates a map using OGC geometry data that is stored on a Microsoft SQL server. Is there a way to read OGC geometry data using a query passed from R?
Maybe ...
2
votes
1answer
127 views
What resources are there to create a WPS from a web app?
I am developing a web app using the Weight of Evidence method and I need to create a web processing service out of it or enable it for web processing services.
The code is in C# and includes an ...
2
votes
0answers
58 views
How to Create database using OGC compliant geometries and Custom type Geometries?
I am interested in storing geometry attributes in a PostGis database, so that it would be OGC compliant, along with OGC compliant geometry types like point,line, linestring, etc. I also wanted to ...
2
votes
0answers
53 views
How to get a Feature with a srsName?
This is a duplicate asked on AutoDesk Forum.
If I form a request like this:
...
1
vote
2answers
231 views
Is there a public OGC Catalog Service (CSW) available?
Is there an "almost always available" service URL for a public Catalog Service (CSW) available anywhere?
I'm keen to test CSW client capabilities without having to configure a CSW server.
1
vote
4answers
1k views
Is there a public Web Map Tiling Service (WMTS) available?
Does anyone know of an "almost always available" service URL for a public facing Web Map Tiling Service (WMTS)?
I'm keen to test WMTS client capabilities without having to configure a WMTS server.
1
vote
1answer
172 views
Can use of GML Simple Features profile by Web Feature Service (WFS) be advertised?
The ArcGIS 10.1 documentation on Working with WFS services says:
The GML Simple Features profile is recommended for use with ArcGIS and
is the basis for WFS support in ArcGIS.
Is there an easy ...
1
vote
1answer
517 views
Anyone try generating C# classes from http://schemas.opengis.net?
I'd like to generate gml/wfs/wms classes from the OGC schemas. Using xsd2code I receive numerous errors, one of them being "Invalid particle derivation by restriction". I'm curious is anyone has ...
1
vote
1answer
200 views
Can I create OGC Services via Geoserver automatically?
I am new to GeoServer and wonder how I can create OGC Services via Geoserver automatically. I have to publish my data (Shapefiles) with a Java program as OGC Services. How can I do that?
BTW: I ...
1
vote
1answer
104 views
Desktop client symbolozing a WMS layer by sending SLD to the WMS server?
Objective is simple: finding 'desktop software' (such as ArcGIS, QGIS, etc) that can load a WMS layer, and then send its own SLD to apply to the WMS server in order to get the WMS layer back with the ...
1
vote
1answer
62 views
OGC webservice engine like geoserver in .NET
In java there are a lots of third part libraries which can used to create OGC webserivce like wcs/wfs/wms etc.
However I have not found anything similar in .NET.
We are currently using ArcGIS ...
1
vote
1answer
204 views
OGC WMS Validation
We're trying to validate our WMS server with OGC standards,to do so OGC has a test page available.
Here,only stacked on a single error
wms:profiles-basic-1 (View Details): Failed
When we look ...
1
vote
1answer
24 views
Is WFS:native mandatory to get OGC compliance?
I am a newbie to this domain. I am using WFS 1.1.0 and found out that is has a wfs: native operation. I wanted to know whether I can get OGC compliance without implementing WFS: native or is it ...
1
vote
0answers
37 views
GeoServer WMS OGC-filter fails with “I dont understand the tag: gml:Polygon”
I'm trying to construct an OGC filter to pass to a WMS GetMap request to GeoServer but I can't seem to do it. The goal is to show the parts of the layer that intersects with a supplied polygon.
...
1
vote
0answers
72 views
GeoServer Transformation Function (Categorize) Problem
I'm trying run three filter functions(Recode,Categorize,Interpolate) described at the bottom of this page
http://docs.geoserver.org/stable/en/user/filter/function_reference.html
Recode and ...
1
vote
0answers
148 views
How to handle multipoint symbology catalogue (as in mil2525c, tactical graphics appendix b)
Is there a general format (standards based) to store a vector based drawing description for multipoint symbology (means having several anchor points reflecting symbol point <-> geographic point ...
0
votes
1answer
83 views
WFS service is not OGC compliant
I am quite surprised to discover several WFS services (v1.0.0) running on the web which are not compliant with the OGC WFS-1.0.0 standard.
In the framework of my project, I use a JAXB binding built ...
0
votes
1answer
66 views
How does a spatial database display maps through WMS?
If a spatial database is configured to display maps through WMS, is it always configured to display through TMS and WMTS also? Or is this something that must be configured on the server side ...
0
votes
0answers
45 views
Does GeoXACML misunderstand XACML workflow?
In the past few days, I have been diving into GeoXACML and have read several articles. What has made me quite confusing is that those GeoXACML papers write that GeoXACML(PEP) intercepts both the ...
0
votes
0answers
120 views
How to get raw values from OGC Web Coverage Service (WCS) via ArcGIS for Desktop 10.1?
I posted this a few days ago to the ArcGIS Discussion Forum but have had no response so thought I would try here as well.
I'm new to Web Coverage Services (WCS) but have found it easy to add one ...
0
votes
0answers
94 views
Using an xml based filter with openlayers
I have been trying to figure out how to send a filter to geoserver using wfs.
The filter that I want to send is:
filterXML = '<Filter>'+
...
-1
votes
2answers
139 views
Open Geospatial Consortium (OGC) standards
I was trying to understand about the OGC and OGC Standards but i got confused that are they provide standards like ieee or they provide standards that should be implemented with your application
i am ...
