[GIS] Visualising WKT geometry string in QGIS

geometryqgisvisualisationwell-known-text

Is there a simple tool in QGIS to graphically visualise geometry formatted as text?

Example geometry:

POLYGON((571178 6337246,571178 6402217,598061 6402217,598061 6337246,571178 6337246))

Result:

A layer in QGIS showing the polygon from above.

The intention is to do quick and dirty visualisation for debugging purposes – I feel it is easier to relate to a graphical representation than a coordinate list.

Best Answer

Current answer

Try "QuickWKT" Plugin.

Old answer

Try "QuickWKT" plugin. You have to allow experimental plugins to be able to install it.

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Related Solutions

[GIS] Converting between Esri Geometry and WKT using ArcObjects

Using the IWkb interface does a nice job at converting between an IGeometry and WKB. From a WKB you can use the Microsoft.SqlServer.Types library to convert a WKB to SqlGeometry then back to WKT.

IWkb wkb = geometry as (IWkb); //(Where geometry is an instance of IGeometry)
byte[] wkb_bytes = new byte[wkb.WkbSize];
int byte_count = wkb.WkbSize;
wkb.ExportToWkb(ref byte_count, out wkb_bytes[0]);

At this point you have the WKB stored in wkb_bytes. If you want to go the next step to SqlGeometry then to WKT:

SqlGeometry sqlGeom = SqlGeometry.STGeomFromWKB(new SqlBytes(wkb_bytes), srid);
string wkt = sqlGeom.ToString();

[GIS] How to create Esri Flex Geometry from WKT

On the server side, why not just format to ESRI's JSON format - which is very similar to GeoJSON? So, the workflow would look something like:

ON SERVER
1.  Convert geometry to GeoJSON
2.  Convert GeoJSON to ESRI JSON

ON CLIENT
3.  Create feature set by FeatureSet.fromJSON()

Best Answer

Related Solutions

[GIS] Converting between Esri Geometry and WKT using ArcObjects

[GIS] How to create Esri Flex Geometry from WKT

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