Tagged Questions

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1
vote
1answer
71 views

How can I delete relationship classes?

ArcGIS 10.2.2 Standard I'm looking for a code sample that can delete all relationship classes from a database, including inside Feature Datasets. I've searched ESRI's site and only found a ...
1
vote
0answers
17 views

Set Maximum Allowed Panning Area

I'd like to fix the maximal area, in which the user can fly around. Now its possible for the user, to pan everywhere he wants to go. For e.g. to XMin: 216.2. My map has got these "borders": ...
2
votes
1answer
220 views

Converting set of points to polygon using C#?

I want to convert a set of gps ponints to polygon.I used a simple loop to convert it to a WKT and than used makevalid() in sql server and save it in a gemetry column in databasae.Is this way right?or ...
1
vote
1answer
22 views

Why is this formatted string “n. def.”?

I'd like to show the user the current map scale. I update the current map scale in a textblock everytime the map size/scale has changed. This is my code, to show the map scale (in C#): private void ...
1
vote
1answer
39 views

How to set custom fullextent?

I have a WPF Map control whose extent I would like to restrict to a certain area (e.g. to the full extent of some layer). That is, a user should not be able to zoom out too far, or shift the map to an ...
1
vote
1answer
170 views

How to get Intersection point from two lines (coordinates)

I have tried for ages to find the algorithm for getting the coordinate of two intersecting lines from a given coordinate (latlong). As the picture below suggest. I have two coordinates (A and B). ...
1
vote
0answers
43 views

Exporting selected Features to CAD drawing using ArcObjects and C#?

I'm new to ArcObjects, and I have to export selected features to CAD Drawing using just ArcObjects and C#. The code below works well when I convert to a shapefile ShapeFileWorkspaceFactory, but ...
0
votes
0answers
20 views

Call ArcGIS Explorer Extension methods from ArcGIS Explorer Button Addin

I am wondering if anyone might be able to provide some guidance on accessing methods/properties from an ArcGIS Explorer Extension addin. Currently the addin is loaded when the applications runs, then ...
1
vote
0answers
28 views

Utility Network analyst - C#

This is related to Utility Network Analyst tool. I would like to build a button to accomplish the following: A Utility Network Analyst solve-function for downstream with flagging. Ofcourse, the user ...
3
votes
0answers
52 views

Temporary File GDB-based scratch workspace is not deleted after it is released

I have created a temporary File GDB-based scratch workspace as follows: var factoryType = Type.GetTypeFromProgID("esriDataSourcesGDB.FileGDBScratchWorkspaceFactory"); var factory = ...
0
votes
1answer
41 views

How to set max map scale for a layer?

How can I set the maximum scale for a layer? Sometimes the layer is not visible (it disappear), when the map scale is >= 1:250000. I'd like to set it on max 1:125000. This code does not work: ...
1
vote
1answer
41 views

How to zoom to a specific point?

How is it possible to make the map zoom to a specific point like an address that the user wants to find? Codebehind: private void btnSearch_Click(object sender, RoutedEventArgs e){ var queryTask ...
1
vote
0answers
35 views

Utility Network Analyst

I want to write C# code for utility network analyst (downstream trace task). My code is: IUtilityNetworkAnalysisExt m_utilNetExt = new UtilityNetworkAnalysisExtClass(); ITraceFlowSolverGEN tfs = ...
-2
votes
1answer
66 views

Sending Shapefile to SQL Server 2012?

How can I send a shapefile to an SQL Server table? I have searched and found a tool called ShapetoSQL but I am developing a c# Windows application so I am looking for an Open Source solution.
1
vote
1answer
83 views

Problem with Converting XY Coordinates to LatLon

Here is the function that I use to convert from pixel x,y to lat,lon coordinate: public static Coordinate imageToWorld(Dataset gds, int x, int y) { double[] adfGeoTransform = new ...
0
votes
0answers
67 views

Shapefile to Rectangle Overlay/Intersect Test?

I have a shapefile and a repository of images that have corner Lat/Long points. I want to search that images who overlaps/intersects to shapefile. Here is the scenario that I am doing, creating a ...
-2
votes
1answer
132 views

Tutorial for c# and ArcObjects?

I am new to the ArcGIS. Can any one please refer a beginners tutorial for this tool. Referred the help, but couldn't able to get the basics to kick start.
3
votes
2answers
114 views

Selecting features by location based on selected feature using ArcObjects?

I am very new to ArcGIS and ArcObjects. I am writing a code for a button that will detect a selected feature and then select other features based on the feature that I had selected please take a look ...
1
vote
0answers
13 views

How to open an output set that is a list of double values in a geoprocessing service

we are trying to reduce the amount of data we are returning from the server by eliminating returning a polyline and instead returning a collection of values of type GPDouble. When the transaction is ...
1
vote
1answer
43 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
43 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 '?' ...
1
vote
1answer
48 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 ...
0
votes
3answers
121 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; ...
1
vote
1answer
36 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
0answers
37 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') ...
1
vote
2answers
64 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 ...
1
vote
1answer
62 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 ...
2
votes
1answer
140 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
69 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
49 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
51 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 ...
4
votes
2answers
292 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 ...
2
votes
1answer
213 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 ...
2
votes
1answer
53 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
75 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
0answers
270 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
190 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 ...
2
votes
1answer
90 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
236 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
2answers
318 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? ...
0
votes
0answers
57 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 ...
0
votes
0answers
53 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 ...
1
vote
2answers
101 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
0answers
128 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 ...
3
votes
1answer
69 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 ...
2
votes
1answer
58 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 ...
1
vote
1answer
69 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
1answer
118 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 ...
0
votes
1answer
239 views

How to update/delete data from a datagridview?

I wanna be able to update/delete data from a datagridview, and when I do that of course the data in my PostgreSQL database should be edited too. So I've thought about giving the user the ability to ...
0
votes
0answers
73 views

Zoom to selected feature reducing MapFramesize using ArcGIS Engine and C#?

I am trying use the the following code for zooming to a selected feature using ArcEngine 10.2.1 and c#. It is performing, but it is reducing the Mapframe to the feature size. Which was not happening ...