ARCGIS dimensional point line data increased elevation (Z) Method

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1, ARCGIS two-dimensional points, has no elevation data line default value z; elevation action is mainly displayed in three-dimensional data is added;

(1) a method of adding an elevation: GP operation:

 

 Input parameters to: add a field to the line height can be terminated;

Operation above gp gp converted to self-Code: Slightly

(2) a method of adding elevation of 2: code for the AE:

Methods to create a point having IFeatureWorkspace.CreateFeatureClass elevation values, line data; The following is the core:

//创建要素类的关键字段shape字段支持类型设置。
IField field = new ESRI.ArcGIS.Geodatabase.FieldClass();
IFieldEdit fieldEdit = field as ESRI.ArcGIS.Geodatabase.IFieldEdit;
            ESRI.ArcGIS.Geodatabase.IGeometryDef geoDef = new ESRI.ArcGIS.Geodatabase.GeometryDefClass();
            ESRI.ArcGIS.Geodatabase.IGeometryDefEdit geoDefEdit = (ESRI.ArcGIS.Geodatabase.IGeometryDefEdit)geoDef;
            ESRI.ArcGIS.Geometry.ISpatialReferenceFactory spatialRefFactory = new ESRI.ArcGIS.Geometry.SpatialReferenceEnvironmentClass();
            ESRI.ArcGIS.Geometry.ISpatialReference spatialReference = spatialRefFactory.CreateESRISpatialReferenceFromPRJFile(foldprj);//设置空间参考
            geoDefEdit.SpatialReference_2 = spatialReference;
            geoDefEdit.AvgNumPoints_2 = 5;
            geoDefEdit.GeometryType_2 = ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint;
            geoDefEdit.GridCount_2 = 1;
            geoDefEdit.HasM_2 = true;//支持M字段
            geoDefEdit.HasZ_2 = true;//设置为true以支持存储高程
            fieldEdit.Name_2 = "SHAPE";
            fieldEdit.Type_2 = ESRI.ArcGIS.Geodatabase.esriFieldType.esriFieldTypeGeometry;
            fieldEdit.GeometryDef_2 = geoDef;
            fieldEdit.IsNullable_2 = true;
            fieldEdit.Required_2 = true;
            fieldsEdit.AddField(field);//添加字段

 To set the z value is stored after setting the following code to create a good feature class:

 //设置线的z值存储，点设置同*（略）
 IPolyline polyline = m_Feature.Shape as IPolyline;
 IPoint pFromPoint = new PointClass();
 pFromPoint.PutCoords(polyline.FromPoint.X, polyline.FromPoint.Y);
 pFromPoint.Z = ZFrom;//起点高程
 IZAware fromZAware = pFromPoint as IZAware;
 fromZAware.ZAware = true;

 IPoint pToPoint = new PointClass();
 pToPoint.PutCoords(polyline.ToPoint.X, polyline.ToPoint.Y);
 pToPoint.Z = ZTo;//终点高程
 IZAware toZAware = pToPoint as IZAware;
 toZAware.ZAware = true;

 IPolyline pPolyline = new PolylineClass();
 IZAware iPolylineAware = (IZAware)pPolyline;
 iPolylineAware.ZAware = true;
 pPolyline.FromPoint = pFromPoint;
 pPolyline.ToPoint = pToPoint;
 m_Feature.Shape = pPolyline;

 Found after the above code;

Method 3: shap field modified directly

For the ability to directly modify shap field, the test will be the wrong type z input is not supported. Specific self-test.

Cause: For shap field that already exists, can not modify the value of z GeometryDef.