How to work in Model item that have NetTopologySuite Geometry datatype in Asp.net core 3

Question

User2070555482 posted

Hi,

I'am working with the project the have spatial data. I used the NetTopologySuite to use Geometry / Point data type in my model. It's look like :

public Point GeoLocation { get; set; }

public string Street { get; set; }

public string PostalCode { get; set; }

public string City { get; set; }

public string Country { get; set; }

But when I excute my web api the json parameter on this is :

{
  "geoLocation": {
    "coordinateSequence": {
      "ordinates": 0
    },
    "dimension": 0,
    "boundaryDimension": 0,
    "x": 0,
    "y": 0,
    "coordinate": {
      "x": 0,
      "y": 0,
      "z": 0,
      "m": 0
    },
    "ogcGeometryType": 1,
    "boundary": {
      "factory": {
        "precisionModel": {
          "scale": 0,
          "precisionModelType": 0
        },
        "coordinateSequenceFactory": {
          "ordinates": 0
        }
      },
      "userData": {},
      "srid": 0,
      "ogcGeometryType": 1,
      "precisionModel": {
        "scale": 0,
        "precisionModelType": 0
      },
      "coordinate": {
        "x": 0,
        "y": 0,
        "z": 0,
        "m": 0
      },
      "dimension": 0,
      "boundaryDimension": 0,
      "envelopeInternal": {
        "centre": {
          "x": 0,
          "y": 0,
          "z": 0,
          "m": 0
        }
      }
    },
    "z": 0,
    "m": 0,
    "factory": {
      "precisionModel": {
        "scale": 0,
        "precisionModelType": 0
      },
      "coordinateSequenceFactory": {
        "ordinates": 0
      }
    },
    "userData": {},
    "srid": 0,
    "precisionModel": {
      "scale": 0,
      "precisionModelType": 0
    },
    "envelope": {
      "factory": {
        "precisionModel": {
          "scale": 0,
          "precisionModelType": 0
        },
        "coordinateSequenceFactory": {
          "ordinates": 0
        }
      },
      "userData": {},
      "srid": 0,
      "ogcGeometryType": 1,
      "precisionModel": {
        "scale": 0,
        "precisionModelType": 0
      },
      "coordinate": {
        "x": 0,
        "y": 0,
        "z": 0,
        "m": 0
      },
      "dimension": 0,
      "boundaryDimension": 0,
      "envelopeInternal": {
        "centre": {
          "x": 0,
          "y": 0,
          "z": 0,
          "m": 0
        }
      }
    },
    "envelopeInternal": {
      "centre": {
        "x": 0,
        "y": 0,
        "z": 0,
        "m": 0
      }
    }
  }

Is their a way to simplify it like 

( <tt class="REPLACEABLE c2">x</tt> , <tt class="REPLACEABLE c2">y</tt> )

Cause in postgreSQL in look this, Thanks

Answer 1

User-854763662 posted

Hi TinVin727 ,

Is their a way to simplify it like 

( <tt class="REPLACEABLE c2">x</tt> , <tt class="REPLACEABLE c2">y</tt> )

Did you mean to transfer the data in json in the above form?

What exactly do you want to achieve ? Please share more details so that we can better understand your problem ?

Best Regards,

Sherry

Answer 2

User2070555482 posted

Hi Sherry Chen,

I used Geometry datatype (NetTopplogySuite) for my model property (GeoLocation). This is where I can post or add a geolocation. But when i run it in swagger the json form is this 

  "geoLocation": {
    "coordinateSequence": {
      "ordinates": 0
    },
    "dimension": 0,
    "boundaryDimension": 0,
    "x": 0,
    "y": 0,
    "coordinate": {
      "x": 0,
      "y": 0,
      "z": 0,
      "m": 0
    },
    "ogcGeometryType": 1,
    "boundary": {
      "factory": {
        "precisionModel": {
          "scale": 0,
          "precisionModelType": 0
        },
        "coordinateSequenceFactory": {
          "ordinates": 0
        }
      },
      "userData": {},
      "srid": 0,
      "ogcGeometryType": 1,
      "precisionModel": {
        "scale": 0,
        "precisionModelType": 0
      },
      "coordinate": {
        "x": 0,
        "y": 0,
        "z": 0,
        "m": 0
      },
      "dimension": 0,
      "boundaryDimension": 0,
      "envelopeInternal": {
        "centre": {
          "x": 0,
          "y": 0,
          "z": 0,
          "m": 0
        }
      }
    },
    "z": 0,
    "m": 0,
    "factory": {
      "precisionModel": {
        "scale": 0,
        "precisionModelType": 0
      },
      "coordinateSequenceFactory": {
        "ordinates": 0
      }
    },
    "userData": {},
    "srid": 0,
    "precisionModel": {
      "scale": 0,
      "precisionModelType": 0
    },
    "envelope": {
      "factory": {
        "precisionModel": {
          "scale": 0,
          "precisionModelType": 0
        },
        "coordinateSequenceFactory": {
          "ordinates": 0
        }
      },
      "userData": {},
      "srid": 0,
      "ogcGeometryType": 1,
      "precisionModel": {
        "scale": 0,
        "precisionModelType": 0
      },
      "coordinate": {
        "x": 0,
        "y": 0,
        "z": 0,
        "m": 0
      },
      "dimension": 0,
      "boundaryDimension": 0,
      "envelopeInternal": {
        "centre": {
          "x": 0,
          "y": 0,
          "z": 0,
          "m": 0
        }
      }
    },
    "envelopeInternal": {
      "centre": {
        "x": 0,
        "y": 0,
        "z": 0,
        "m": 0
      }
    }
  }

 My question is how can i post on this parameters. It is my first time to use geometry in my app.

Answer 3

User-474980206 posted

to use the Geometry object directly you will need to learn it. also if converting to JSON be sue to use a library that works correctly. see:

   https://github.com/NetTopologySuite/NetTopologySuite.IO.GeoJSON

then the client can deserialize with the above library and use the their api to modify the object.