Questions tagged [c#]
C# is a .NET programming language.
1,292
questions
0
votes
0answers
14 views
Which algorithm is being used in NetTopologySuite-1.15-pre2 for polygonization?
NetTopologySuite-1.15-pre2 (GeoAPI-1.7.4) has an implementaion of Polygonizer() as follows:
using System.Collections.Generic;
using GeoAPI.Geometries;
namespace NetTopologySuite.Operation.Polygonize
...
0
votes
0answers
29 views
Which algorithm can I use to detect polygons from a set of line segments?
Say, I have a set of line segments. I need to check to see if they intersect to form any polygon or not. If they form any polygon, I need to detect and return them as a list.
Say, I represent a line ...
2
votes
1answer
27 views
Adding AddIn to ArcMap UI automatically after AddIn installed?
For example: I create a basic MainMenu "My Menu" AddIn by VS2010, and add "isRootMenu=true", complie and install the addin, open ArcMap, I have to open the customize dialog -> ...
1
vote
0answers
24 views
How to add style in GeoServer with restsharp
I can add new style application/zip with Postman into GeoServer, but I can't do it with C#-RestSharp.
How can I do this?
string url = "http://" + server + "/geoserver/rest/...
0
votes
0answers
24 views
Getting started with SharpMap in Visual Studio with C#
I am trying to use SharpMap in Visual Studio with C#.
My first step was to go to the Tutorials on CodePlex.
https://archive.codeplex.com/wikipage?title=SharpMap%20Tutorial&referringTitle=Home
But ...
2
votes
0answers
41 views
GDAL WriteRaster as single band GeoTiff using C# saves as all black image
I am new to the community. I am fairly new to GDAL, and I'm using the C# library. I have a single band raster for which I ran multiple analyses on, and for each, I saved them using GDAL WriteRaster - ...
3
votes
0answers
13 views
ArcGIS Pro SDK forcing process windows to be minimized?
I'm running a Process from my add-in, and even if I use P/Invoke to force the window to be open and in the foreground, the process windows that appear will be minimized. Weirdly enough, they are ...
0
votes
1answer
18 views
Does MakeTableView work with field_info in ArcObjects?
gp.Execute(new MakeTableView()
{
in_table = $@"Database Connections\os@gisuat.sde\TESTGIS.SOME_POLY",
out_view = "SOME_POLY",
...
1
vote
0answers
39 views
GDAL C# Bindings
I need some help on usage of GDAL C# bindings to convert geoJSON to MVT. How do I know that, below call is complete? We observed that below call is Async (All the code lines are executed and Parent ...
0
votes
0answers
12 views
Join utility using ArcObjects/ArcGIS runtime SDK and c#
I am working on creating a utility to join excel sheet with the shapefile using ArcObjecs and c#.
I have ArcMap 10.4 installed at my machine and ArcGIS runtime sdk. Do I need to use ArcObjects to ...
2
votes
2answers
48 views
Cannot reuse output feature class in a custom geoprocess using ArcObjects
I'm developing an arcobjects 10.4.1 custom GeoProcess (fusion shift) which has to be able to run within a model builder.
The GeoProcess seems to run smoothly, but the problem is it needs to be ...
0
votes
0answers
11 views
Catfood.Shapefile System.NotImplementedException: PointZ not implemented
I am trying to read a shapefile with catfood.shapefile. But it gives me a weird error when I run the code:
System.NotImplementedException: 'Shapetype PointZ is not implemented'
The code:
using (...
3
votes
1answer
85 views
GDAL C# Error: “Failed to import coordinate system”
I've been struggling with building C# code that will do the equivalent of gdalwarp, specifically reproject a GeoTIFF file and save to an ESRI .bil file (EHdr)
To that end, I thought the following ...
0
votes
0answers
7 views
How to create custom calculations with filters using C# when generating reports on ArcGIS Desktop 10.7.1
I have read the help page on calculating fields in reports which has shown me that calculating fields when generating a report is possible, however, I am unsure how to write a C# expression to be able ...
0
votes
0answers
16 views
Uploading KML or KMZ files on GeoServer via REST Service
I am developing a web application that can upload some files on GeoServer.
public bool UploadShapeFile(Uri localZipUrlFile)
{
String fileUri = localZipUrlFile.AbsolutePath;
...
1
vote
0answers
25 views
Catching gdal errors in C#?
I have an operation:
var warpTif = Gdal.wrapper_GDALWarpDestName(ecwTif, 1, dss, warpOptions,
new Gdal.GDALProgressFuncDelegate(GdalProgressFunc), $"Warping {vrtName}:");
that ...
1
vote
0answers
69 views
MapWinGIS Create Buffer Using WGS84 Lat Long Coordinate System
I am using MapWinGIS with c#. I am trying to create a buffer for a polygon that has WGS84 decimal degree reference system, but it never get displayed.
Here is my code:
// Form load
var gp = new ...
0
votes
0answers
28 views
gdal_calc in C#
I am writing a .NET core application and have been trying to utilize the Gdal libraries. I have added Gdal.Core and Gdal.Core.WindowsRuntime NuGet packages to my project. I have been able to ...
1
vote
0answers
26 views
AutoIdentifying spatial reference from shapefile fails on second attempt
I read a shapefile with GDAL 2.4.3 in C# and try to determine the used spatial reference. This works fine for the first time reading the file. When I close the file and read it again, the ...
0
votes
1answer
30 views
Arcgis Runtime .NET for WPF scene with elevation source shows flat instead
I tried the Arcgis tutorial from here. It shows how to add basemap and elevation so that the scene would show a 3D surrounding, but it doesn't. Can someone help me?
This is my .cs file
private ...
0
votes
0answers
27 views
DotSpatial reprojection introduces offset compared with QGIS
Im writing a converter from shape file to Geojson using C# and DotSpatial to do coordinate conversion. Currently this mostly works, with newly created shape files in QGIS the coordinates are perfect ...
0
votes
0answers
39 views
GDAL C# - ReWrite of PY function in C# to CHIP dataset
I am working on a small project that utilises GDAL and its C# bindings.
TASK
To chip a dataset given the top left and bottom right LAT/LNG coordinates.
PROBLEM
My resulting CHIP is offset by 40km ...
1
vote
0answers
83 views
Opening Attribute Table by using ArcGIS Pro SDK, WPF and C#
I am trying to display an attribute table for a selected layer. I have access to attribute table but I can not pass the ArcGIS table to the DataGrid I created in xaml.
<DataGrid x:Name="...
2
votes
0answers
42 views
How to read the Microstation element attribute values from .Net C#?
I am using following code for read the element attribute from index.But it shown the error like Unable to cast object of type 'System.Object[]' to type 'MicroStationDGN.DataBlock[]'.Is there any ...
3
votes
1answer
36 views
How to get the bounding rectangle of the rectangle drawn in the ArcGIS using ArcObjects?
I am trying to draw the rectangle in the map and get the Rectangle bounds from it. I am able to draw it but I am not getting the rectangle bounds. I have followed this url :Follow URL
And my code as :...
0
votes
0answers
73 views
Creating layer file using C#
Is there a C# library which can be used to programmatically create a .lyr file? (Compatible with Esri products)
Using NetTopologySuite I've created a shapefile which contains some squares. I'd like ...
2
votes
0answers
75 views
Activate Map on the click of a button ArcGIS Pro SDK
In this case, when an ArcGIS Pro project is opened, non map panes are active. I would like the map pane to be activated on the click of the button as proceeding code requires the MapView.Active to not ...
2
votes
1answer
38 views
GDAL failing to recognize OSM pbf file
I'm using the GDAL .Net library to open a PBF file I've downloaded from the GeoFabrik website. The file opens fine in QGIS.
However when I call the Gdal.Open method on the file, it throws an exception ...
0
votes
0answers
34 views
How to set the angle of an Annotation when use a shared symbol
I am creating annotations in an add-in and am trying to rotate the annotation using the Angle field while using a shared symbol, however when I try and set the Angle field directly it always sets back ...
0
votes
1answer
72 views
ArcObjects C# memory management - Out of memory exception
I'm a noob in C# and ArcObjects (started two weeks ago).
I'm trying to write a stand-alone console program that will change label placement quality in all data frames for all MXD files in a given ...
2
votes
1answer
207 views
Can't convert a WKT with a Z value into a SQL Geometry value
I'm using nettopologysuite in c# to build a nettopology geometry object, and then save it as a geometry object in SQL. Generally this works fine, except i recent came up with (from a shapefile) the ...
0
votes
0answers
22 views
Unable to enable sync on AGOL via REST api3
I feel I'm doing something fundamentally wrong here - the update doesn't seem to be taking effect (when I look in the console afterwards it's still false).
I'm writing a process in C# to update a ...
1
vote
0answers
23 views
Transfer fields from one layer to another ArcGIS Pro SDK
I am creating a new layer and I would like for the new layer to take on the fields schema from the input layer. How can I accomplish this in ArcGIS Pro SDK C#?
This is the code that I have to ...
1
vote
1answer
35 views
How to bootstrap an MSI to Esri .NET Add-in
I support an old COM extension to ArcMap built using ArcObjects, and I'm exploring the possibility of porting it to an Add-in. The main benefit I'm seeking with the add-in is its ease of deployment: ...
1
vote
0answers
120 views
Update Esri SOAP to REST
I'm new to ArcObjects, not a GIS professional so please be patient with my lack of GIS knowledge.
I have an .Net Web application with ESRI.ARCGIS.SOAP references, looking to update them with rest.
...
0
votes
0answers
25 views
ArcObjects Load features that don't exist
I'm trying to write a method in ArcObjects .NET that will load features from a file GDB into another geodatabase but only if they don't otherwise exist. Records are considered existing if there is a ...
1
vote
1answer
42 views
Modify the same feature multiple times ArcGIS Pro SDK EditOperation
I am atttempting to modify a feature twice using EditOperation in a loop. I am redacting certain subcurves from a given polyline at different sections of the line. The output polyline should be the ...
0
votes
1answer
64 views
How to normalize elevation of GeoTIFF file data stored as unsigned integers?
I have a GeoTIFF file where the pixels are stored as unsigned 16 bit integers. I am using C# Gdal bindings to read the GeoTIFF file, using the Band.ReadRaster method, in order to produce an array of ...
0
votes
0answers
60 views
Seeking API (Free) to retrieve simple base map
I am currently using the OpenWeatherMap Weather Maps 1.0 API and the RainViewer API in order to retrieve cloud and precipitation layers based on a provided x and y coordinate. Unfortunately these ...
1
vote
1answer
38 views
Using IAddDataDialog2 to obtain layer from .gdb with ArcObjects and C#
I am using ArcMap 10.4.1.
I cannot figure out how to properly initialize/create IAddDataDialog2 in C# to access a .gdb file in which I'm suposed to find a layer that I want to add in my TOC. I tried ...
1
vote
1answer
28 views
RowChangedEvent doesn't catch every change
I'm using C# to create ArcGIS Pro add-ins.
Until now I've been able to catch changes made directly on the attribute table. This is modify, create or remove a row. But, when I use a geoprocessing tool ...
2
votes
0answers
163 views
How to use GDAL from Nuget in C#?
I have created a C# WPF (.NET Framework 4.6.1) application in Visual Studio 2017 and installed latest stable GDAL 2.4.2 from Nuget.
In the App.xaml I have added the GDAL configuration call:
...
0
votes
1answer
42 views
Getting ArcGIS Online token through C#
I'm trying to get a token for ArcGIS Online using C# (well, more specifically SSIS). I've got a URL I can use which works well, and I can hit it and get what I need in Chrome, but it won't work ...
2
votes
1answer
185 views
OpenLayers vector tile rendering problem on .NET Core 2.2
I working on OpenLayers vector tile. I am using PostGIS ST_AsMvt function for render my geom data.
I sending query like this to PostgreSQL in my .NET Core server
SELECT ST_AsMVT(mvt, 'geom', 4096, '...
0
votes
1answer
48 views
CartoType - set min/max on map view while Panning
Working with the .NET CartoType SDK on Windows. How can I restrict panning? In the "Windows Maps" app I am able to pan outside of the map boundaries. I would like to prevent this.
The C# demo program ...
1
vote
0answers
60 views
Reading ushort and uint data using gdal C# Band.ReadRaster method
I am using C# bindings for gdal in order to get elevation data from GeoTIFF files. The API contains a Band.ReadRaster method. This method supports a lot of data types, but for reading unsigned ...
1
vote
1answer
79 views
CartoType - set min/max on map view while Zooming Out
Working with the .NET CartoType SDK on Windows. How can I set a limitation on Zoom Out? In the "Windows Maps" app I am able to Zoom Out to a very little map size. How can I prevent this?
1
vote
0answers
44 views
Opening Raster with “bad” vertical coordinate system crashes program
I have an elevation TIFF file that comes from another program that seems to have something wrong with its Vertical Coordinate System. The coordinate system is EGM96 Geoid. I cannot open this TIFF in ...
3
votes
1answer
171 views
Multipolygon to single polygon
I am trying to merge the three polygon to make a single Polygon. The WKT of the polygon is as below
//TMP_6
POLYGON ((626480.63252975536 3069129.8280593003, 626489.846006365 3069133.60864098, 626490....
1
vote
0answers
46 views
Retrieving individual pixel height data given color table/relief data and color shaded relief map using C# and GDAL?
I am using C# GDAL/OGR/OSR bindings. I have a GeoTIFF file where each pixel is stored as a color in a Red, Green, and Blue raster band. I have a color table/color relief file (.csv) which I am able to ...
