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what have I done wrong when implementing Leaflet draw. How to use WFST in this specific example?

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问题 I am new to this domain of GeoInformation development. I am following the below pipeline architecture flow to achieve a GIS-based application problem. PostGIS - GeoServer - Leaflet I have set up my leaflet client application which composes tiles to a map. I am also using some leaflet plugins (like Draw, zoom) in order to give users the option to mark and to draw on the map. I am able to draw and get the GeoJSON features of the drawn polygon as shown below: I am stuck after this part of

what have I done wrong when implementing Leaflet draw. How to use WFST in this specific example?

阅读更多关于 what have I done wrong when implementing Leaflet draw. How to use WFST in this specific example?

Problem generating data contract code with SVCUTIL

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问题 When i run the following command in the visual studio command prompt: D:\Documents\DEV\SARPilot\Docs\eoschema\schema\OrderSchema>svcutil /t:code /language=C# *.wsdl *.xsd ..\ws-addressing\*.xsd ..\gml\3.1.1\base\*.xsd ..\ows\1.0.0\*.xsd ..\xlink\1.0.0\*.xsd ..\swe\sweCommon\0.0.0\*.xsd /out:MyServiceProxy.cs /config:MyServiceProxy.config I get the following error: Microsoft (R) Service Model Metadata Tool [Microsoft (R) Windows (R) Communication Foundation, Version 4.0.30319.1] Copyright (c)

Element or attribute do not match QName production

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问题 I have a schema that i have "flattened" using XML Editor. After i flatten it i get a validation error. What can i do to fix it? Error Message: F [Xerces] Element or attribute do not match QName production: QName::=(NCName':')?NCName. code: <xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/3.1.1/base/gml.xsd" xmlns:="http://www.opengis.net/gml/3.1.1" /> <xs:annotation xmlns:="http://www.opengis.net/sps/1.0"> <xs:documentation> <copyright> SPS is

How do I clean up self-intersecting polygons in a spatial database?

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问题 I have some spatial data (MapInfo files) that contains self-intersecting polygons. These cause problems in my processing, in particular I can't generate geometric unions in PostGIS. Is there an easy way to resolve the issue? I can deal with multi-polygons if that should be necessary. 回答1: I figured it out myself: an st_buffer(wkb_geometry,0) does the trick, at least on my sample data. 来源： https://stackoverflow.com/questions/4846391/how-do-i-clean-up-self-intersecting-polygons-in-a-spatial

Sql Server 2008 geography LineString size limitations

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问题 today i ran into a possible size limitation of geography type Linestrings within Sql Server 2008. when i create a Linestring with STGeomFromText() that contains 567 points containing Long,Lat and Z coordinates, everything works fine. However, if i add one more point to the linestring i get an: ArgumentException 24200: The specified input does not represent a valid geography instance. I was not able to find any documentation regarding size limitations of sql server´s geography type linestrings

How to determine what schema files (xsd) to include on my svcutil command line?

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问题 Using svcutil, I'm trying to generate a proxy class for a web service endpoint which follows the OGC CSW 2.0.2 (07-006r1) standard for catalog services. I've downloaded the entire OGC schema files and placed them into my "D:/temp/OGCSchemas/" Directory. The schema i'm interested in is CSW, however CSW schema includes and imports other schemas and that's why i've downloaded the entire set. For example you will see something like this: <wsdl:import namespace="http://www.opengis.net/cat/csw/2.0

How to determine what schema files (xsd) to include on my svcutil command line?

阅读更多关于 How to determine what schema files (xsd) to include on my svcutil command line?

Using svcutil, I'm trying to generate a proxy class for a web service endpoint which follows the OGC CSW 2.0.2 (07-006r1) standard for catalog services. I've downloaded the entire OGC schema files and placed them into my "D:/temp/OGCSchemas/" Directory. The schema i'm interested in is CSW, however CSW schema includes and imports other schemas and that's why i've downloaded the entire set. For example you will see something like this: <wsdl:import namespace="http://www.opengis.net/cat/csw/2.0.2/requests" location="./xml-interfaces.wsdl"/> <xsd:schema targetNamespace="http://www.opengis.net/cat