C# is a .NET programming language.

learn more… | top users | synonyms

0
votes
0answers
10 views

A library to edit geometry in C#

For my windows application, I am looking for a method to edit vertexes and geometry of features that are stored in a SQL Server database. I just want a simple function for dividing polygons into 3 ...
1
vote
0answers
23 views

Converting MDB File With Unicode Characters

I'm using C# wrapper of GDAL and I'm having a problem converting MDB file that contains unicode characters. Lets take for example conversion to KML file, non-English characters are replaced by '?' ...
0
votes
2answers
888 views

How to use Sharpmap to display spatial data from MS SQL Server 2008

Can anyone show me a step by step example on how to use Sharpmap to display MS SQL server spatial data using C# as the programming language? Please note I have exploit some of the example online but ...
1
vote
1answer
28 views

How to add an IFeature to the Map and zoom to it ?

I have an ITable i cast it to an IFeatureLayerDefinition after casting it to an ILayer then to an IFeatureLayer, then i used my IFeatureLayerDefinition to get only one IFeature using the ...
1
vote
1answer
13 views

Placing a cost raster in Arcmap Table of Contents in 10.2.2

We have a set of routines that have been used for writing rasters to the ArcMap table of contents from our tools. The code that always worked is this: /// <summary> /// Used for ...
0
votes
3answers
30 views

Adding Field To feature class using ArcObjects and C#?

I want to add a new field to my featureclass.My code for that is: public IMxDocument mxDoc; public IMap map; IFieldEdit2 field = new FieldClass() as IFieldEdit2; ...
0
votes
1answer
125 views

Is snapping working when changing from NAD83(decimal degree) to NAD83 Zone UTM 11N(meters)?

I've used the following ESRI snippet to Convert the display extents in Pixels (at the current map scale) and then return out the map units. public System.Double ...
2
votes
1answer
77 views

Accessing File Geodatabase to convert to shapefiles using ArcObjects?

The end result of what I'm trying to do is convert a FGDB into a folder of shapefiles. To do this, I need access to all the data I'd expect to see in a shapefile. Once I get all the information I need ...
0
votes
0answers
15 views

unique value rendering in C# code behind

I have the following code in my xml file where i specify the uniquevalue rendering as shown below: ` <FeatureLayerExtension> <WhereString> (ZONE ='A)' or (ZONE ='V') ...
4
votes
2answers
164 views

get map tiles for a polygon

Based on this tutorial, I can easily find out a tile for a point. But is there an algorithm to find all tiles that are covered by a rectangle or lineString or by any other feature? I would greatly ...
5
votes
1answer
337 views

GDAL.RasterizeLayer not ported to the C# bindings?

I am trying to use the OSGeo.GDAL.Gdal.RasterizeLayer(…) from GDAL 1.9.2 and it requires some SWIGTYPE parameters: OSGeo.GDAL.Gdal.RasterizeLayer( OSGeo.GDAL.Dataset dataset, int bands, ...
0
votes
1answer
285 views

Geoserver with Openlayer map showing problem

I have a Geoserver runnning at 8888 port and url is http://localhost:8888/geoserver. I can browse any layer created by my custom data. ...
1
vote
2answers
35 views

Is there any efficient way to create a raster with pixel value representing a unique id calculated based on pixel lat/lon?

I have 10m raster for each state in US. Current pixel value represents something. I want to have 'same' raster but pixel size representing a unique id calculated based on pixel lat and lon. I am ...
0
votes
1answer
92 views

Get points along a polyline at defined distance c#

I need to store into my array the points along the polyline at each defined distance. Example: The Polyline length is 50m, I set the interval to 5m. I have to store in the array all the points along ...
0
votes
2answers
182 views

How to add a Data Frame to mxd in a c# stand-alone application?

I am writing a stand-alone application in c# (using vs2010). I have ArcGis Desktop license. I only need to insert a new data frame in an mxd file and save this mxd. So: I create MxDocument coclass. ...
4
votes
1answer
176 views

Call ArcGIS Server Buffer command without using SOM

All, I wanted to see what the best way was of calling the geometry service to carry out a Buffer operation on ArcGIS Server 10, without using the SOM. Ideally I want to consume the REST API, using a ...
1
vote
1answer
20 views

C#/.Net Library that can draw a line across the date line

I want to be have an embedded map in my application that can handle drawing lines across the date line. I have tried out dotspatial and sharpmap and neither have been able to handle this. Edit: Here ...
4
votes
1answer
437 views

Can custom map tiles be properly rendered via ArcObjects within my ArcGIS 10.1 Desktop AddIn?

Within ArcObjects for ArcGIS 10.1, we are attempting to render pre-generated map tiles as a basemap (group) layer. The tiles themselves are of the typical web mercator aux. spherical tiling scheme. ...
0
votes
0answers
126 views

Do any geodatabase schema and data migration libraries for .NET exist?

I'm performing code refactoring and database normalization in my project and looking for any .NET library for geodatabase schema and data migrations. Does any solution exist for ArcObjects? During ...
0
votes
0answers
38 views

C# geometry hex decoder

When i am storing in the database things like: Point(90 90). I get back 010100000000000000008056400000000000805640 which is a hex encoding of the geometric type. Does anyone know a library for c# ...
3
votes
1answer
18 views

extract vertices from dbgeometry value

Who knows the elegant way to extract coordinates of polygon vertices from well known text representation of DbGeometry value? Here's my polygon for example: {POLYGON ((52.808019 -1.345367, ...
1
vote
0answers
28 views

ZoomTo is not working

I have a graphics layer. When the user selects an address from our software I want the map to ZoomTo that address. This works, but the user has to have an interaction for the map first. I thought this ...
2
votes
1answer
56 views

Is there any way to fast read pixel value using gdal in C#

I create with C# a series of lat/lon value pair in the code(using i, j loop) and I want to extract the pixel value based on either lat/lon pair or pixel location (i, j). I know there is one gdal ...
0
votes
1answer
282 views

ArcGIS 10 IGPFunction2 and IGPFunctionFactory Implementation

I'm creating a custom ArcToolbox tool in C# .NET in ArcGIS 10 SP2. Though I seem to be having two issues which maybe related: Firstly, my tool is run as a background task i.e. the GP dialog does not ...
3
votes
1answer
142 views

Importing shapefile to file geodatabase feature dataset using ArcObjects and C#?

I'm trying to import a shapefile into a featuredataset under a geodatabase using FeatureDataConverter.ConvertFeatureClass. All the examples that I found are not concerning the import under an existing ...
0
votes
1answer
180 views

How to add features to geometry collection using .ShapeCopy

I'm having an issue with trying to complete the loop of adding the selected geometry to my geometry collection. The goal is finding streets that intersect the given streetname (then locating the ...
0
votes
2answers
112 views

How to Create shapefile using Geometry field

I am working on ArcObject. I want to create shape file using arcObject. I am very close to it. but need some better alternative as i feel my solution may fall short in time when there are lakhs of ...
0
votes
2answers
85 views

Reading a raster map cells values in C#?

Suppose I have a raster map file (TIFF, TGA, JNG... etc) loaded with geo-info manifested by the cells values. I need to read the values of the raster map cells "programatically" in a C# program. P.S: ...
1
vote
2answers
147 views

display GeoReferencing image through MapServer

I have a tiff image and got the world file which contains the needed information for GeoReferenceing, how to start add this image on Mapserver ? if I use C# and use GMAP API to call the google server ...
2
votes
1answer
25 views

Access CommandItems programmatically with ArcObjects in ArcGIS Engine application

I'd like to programmatically execute a command in my ArcGIS Engine application with ArcObjects. I know in Desktop I would do it like this: ESRI.ArcGIS.Framework.ICommandBars commandBars = ...
0
votes
0answers
33 views

How connect C# to Postgresql in host j.layershift.co.uk

I have installed postgresql database in http://postgres-project-1241043.j.layershift.co.uk/ host. I want to connect to the database using C#. I use Npgsql with following connection string. ...
2
votes
1answer
217 views

IBufferConstruction create buffer with different geometry types (C# ArcObjects)

I am using the following method in C# public void ConstructBuffers ( IEnumGeometry pInputGeometries, double distance, IGeometry CollectionpOutputBuffers); to create buffers. In the ...
2
votes
0answers
62 views

Editing Feature Class using ArcObjects

I have a problem with editing feature class using arc Objects.Indeed I am working on it for a while and cant find any solution into doing it..I asked a question before about how to connect to database ...
2
votes
1answer
104 views

How to close the current mxd document through arcmap add-in

First, I open a mxd document named A in arcmap, then i use my add-in to generate another mxd document named B, then I use ArcMap.Application.OpenDocument(arcmapMapFileName); to open the ...
2
votes
1answer
1k views

IFeatureWorkspace.CreateFeatureClass() error

I am trying to read a csv file straight into a set of new feature classes within a new file geodatabase, but I am getting the following stack trace when it fails: Attempted to read or write ...
2
votes
1answer
83 views

Image classification using google satellite images

Currently our expert user classifies locations by viewing the Google earth satellite image of a location. They consider circular areas of a 5km radius at a set zoom level. They evaluate the image for ...
6
votes
1answer
391 views

Display Feedback “Stutters” When Moving Features

I have a custom tool for moving features that implements IDisplayFeedback and geometry-specific CoClasses to show the user where they are moving the feature. IMovePolygonFeedback polygonFeedback; ...
0
votes
2answers
110 views

Convert polyline to polygon Using ArcObjects

I have a polyline and I want to convert it to a single polygon feature,I used this code but I get error while I can convert the same shape file using feature to polygon on ArcGIS Where is my mistake? ...
2
votes
1answer
40 views

How do I use code (preferably c#) to clip all points within a shapefile that are not contained within a polygon?

So the task is simple: I want to take a point shapefile as input and remove all of the points that are not contained within a polygon. I'm using DotSpatial to do this, but the catch is that there are ...
0
votes
0answers
97 views

Converting VB code to C# for coverting Polyline to polygon

It is a while that I am stuck at converting polylines to polygon and I couldent find any solutions into it.I have tried some diffrent methods like using ...
0
votes
0answers
25 views

Offset WGS84 linestring based on pixel values

I would like to split up some roads based on their driving direction. For this, I need to offset the roads 2 pixels to the right, in the direction of the linestring. I have the coordinates in WGS84 ...
1
vote
1answer
55 views

How to get a Layer as ILayer (ArcObjects)

I had asked this question previously which I think will work. But as I am new to this, I can't figure out how to get a Layer as an ILayer object to pass to the method that's in my previous questions ...
0
votes
0answers
29 views

Georeferencing Tools in ArcGIS Engine 10.1

I'm new with ArcGIS or even GIS it self. My question might be a newbie question but I need help on building a Georeferencing tool set like the one in available ArcMap. I found that it is not available ...
2
votes
1answer
56 views

C# - Access content from ArcGIS Online

I have got an existing .NET C# desktop application which already reads various GIS formats. I would now like to add support to read data from ArcGIS Online. What options have I got to access ...
2
votes
1answer
51 views

Is Nearest not Near enough?

So we have factories, bridges, boat launches and stations that are on our map by latitude and longitude data fed to us from Homeland Security. In a good number of these situations an attack can come ...
3
votes
1answer
55 views

What are some GIS outlets for my open source MapBasic utility module and library?

I'm actively developing a MapBasic module that provides additional MBX programming functionality by wrapping .NET 4.0 and Win32 API calls in easy to use MapBasic functions and subs. MB_Utils acts as ...
5
votes
3answers
1k views

How to unproject WKT to WKT in .NET?

I have WKT in this format: GEOMETRYCOLLECTION(POLYGON((491990.250718 6212873.59755,491492.160493 6212904.94117,491265.64715 6212790.54445,491319.517251 6212550.36334,491579.624164 ...
2
votes
0answers
59 views

Performance issue with SQLite + Spatialite + C#

I am having a performance issue with SQLite database (.db) which extends to SPATIALITE I am trying to update Geometry of 1,00,000 records in database (.db) which taking around 50 minutes. Too much ...
-1
votes
1answer
30 views

Trying to use Near to relocate points to the waterways

We are trying to relocate elements that are near the water but not quite on the water and relocation them to the nearest point. I'm trying to build the parameters to use the Near tool ...
0
votes
1answer
73 views

Create FeatureClass in Personal Geodatabase and store data

I have to create a new featureClass in my existing personal GeoDatabase. And save some polylines into this featureClass. How can i do it? I need c# code to do this. Edit: I have a problem during ...