DotSpatial is a geographic information system library written for .NET 4. It allows developers to incorporate spatial data, analysis and mapping functionality into their applications or to contribute GIS extensions to the community. DotSpatial provides a map control for .NET.

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MS Sql Server 2012 UnionAggregate geometry fails in ArcMap

I have following two geometries. Geometry 1 (G1): MULTIPOLYGON (((148.134707676 -34.1519003565, 148.143738823 -34.1540810687, 148.14648294 -34.1396863245, 148.143196834 -34.1392361445, 148.140859243 ...
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Display Preview Images In Map Extends

I am displaying some map extends by lat/long on map control by using shapefile writer of DotSpatial library. Now I want to display preview image within each extend that is selected. How can I achieve ...
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97 views

How to convert multipolygons to a single polygon

I have converted a set of gps points to polygon and then using .makevalid() I saved them in sql server.But It converted them to multypolygons.Is there any way to fix this problem and convert them to ...
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47 views

using DotSpatial plugins in my app

I am new with dotspatial and I want to enable and use plugins on my own. I have a custom button that I want to add, it's a click handle measure function and shows the results in a text label. Is ...
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1answer
78 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 ...
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306 views

converting projections using dotspatial or proj4

how can i convert projections using either dotspatial or proj4? i am making a program using sharpmap and dotspatial in VB.net have to convert a EPSG 4030 into a Lambert conformal conic projection and ...
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1answer
201 views

DotSpatial.Projections Vs. ProjNET4GeoAPI

DEAR PEOPLE FROM THE FUTURE: Here's what we've figured out so far… I have been facing the issue of transform coordinates from a custom spatial reference to a well known spatial reference (let's say ...
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1answer
348 views

How to create Map Document for DotSpatial?

How can I create a Map Document (including layers, symbology info etc.) for DotSpatial just like we have MXD File in ESRI ARCGIS.
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274 views

Alignment/Projection issue when opening a shapefile in ArcMap that was created from DotSpatial code

I have a number of Polyline and Point features stored in a SQL Server 2012 database. I am using a website with C# and DotSpatial to create and export a shapefile of any one of these features ...
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734 views

How to connect Dotspatial with PostGIS/PosgresSQL database and perform SQL function

I am currently doing a project that needs a GIS front-end interface to visualize geographical objects (road networks), and a back-end geo-spatial database to implement network analysis (SQL based). ...
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256 views

Creating a ShapeFile spatial index programmatically in .Net

I am creating a shapefile programmatically using DotSpatial using the following example syntax / pseudo code FeatureSet features = new FeatureSet(DotSpatial.Topology.FeatureType.Polygon); ...
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204 views

Cant' Find DotSpatial.Geometries.dll

I am trying to follow a simple tutorial on Dotspatial web page "Sample code that demonstrates how to create a Multi Polygon Feature Set" I add the DotSpatial.Data.dll to the project References but I ...
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906 views

How to use DotSpatial to project/reproject shapefiles on the fly

I would like to use DotSpatial to reproject shapefiles on the fly before loading them to GeoServer. I've been looking for tutorials on how to get started with this in vain. Any pointers on where I can ...
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1answer
748 views

DotSpatial Plugins for Measure,attributes,query

I want the end product user to open the attributes,measure task and query the shapefile data using the DotSpatial library in c# . Thank you in advance.I have Dll with me but when i create the folder ...
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1answer
890 views

Open-source projects that use DotSpatial?

I'm intrigued by what I see with DotSpatial, mainly for its C# interface with GDAL. I've downloaded the source (and the 3.5 x86 package) and I'm a bit stuck with using the GDALHelper class to ...
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1answer
3k views

How to generate a Shape File in DotSpatial

I have a .csv file of coordinates such as the following: -90.19, 38.62, St Louis -122.42, 37.82, San Francisco -74.04, 40.68, New York I want to create a shape file using DotSpatial that has these ...