Any example for a C#-WebGis development on the basis of DotSpatial?

Okay I lost quite a few hours navigating and finally found this: https://github.com/DotSpatial/DotSpatial/issues/951

The developers themselves decided no longer to describe the DotSpatial libtrabies to be Web-compatible. They are perfect for Desktop GIS but the Web Components need to be updated. The text is from 2017 so I don't know whether a better version is available.

Here is an AMAZING open-source, fully managed code implementation of a GIS engine for desktop, easily ported to mobile and web.

https://github.com/Opzet/SimpleMap

It is a FOSS fully managed dot net core 5.0 codebase, It is compact and easy to use, a really nice GIS engine.

I need some minor help with the Georeference function and the raster layer loader.

Please download and try out the working demos with a small footprint

This is a fully workable sample project on C# for Visual Studio 2019

Sample demonstrates how You can use maps in your projects.

You can download and run SimpleMap.exe. Or download and compile the source code.

Features

• All in one Winform control

• No un-managed Code & No Dependencies.

• Small code size

• Lightweight

Rendering

• Fast image draw to screen via GDI+, written pure on C# without any direct mapping to WinApi.

• Double buffering technology, all image changes draw into memory buffer and then changes apply to the screen.

Tile servers

Download map images from tile servers (e.g google).

• Cache map tile on disk.

• Download google image file cache to local storage.

• Save google Maps as one image.

• Base classes to draw any map layers.

Georeference Raster Images Work in progress Georeference image to create world file

• Load raster image (pngw,bmpw,jpgw,tifw, etc) as geo referenced overlay

GIS Projection

• Projection of coordinate system through subclasses and operators.

• Translate google coordinates to longitude and latitude.

• Translate longitude and latitude to google coordinates.

• Math operators support working with coordinates.

• Spatial in-memory index with fast search by coordinates based on google map coordinate system.

• Spatial index tuning.

• Spatial index supported objects are: Point, Line, Rectangle, Polygon(partially supported).

SimpleMap/ExampleForms/FrmMapDownloader.cs demonstrates how to download google map area as single image (GetFullMapThread function) or how to cache google map on local disk (DownloadThread function).

SimpleMap/ExampleForms/Controls/MapCtl.cs demonstrates how to draw cached google map images to screen with custom objects as lines, bitmaps etc.

It is absolutely free for use.