ArcGIS Engine Developer Guide

BUILDING A COMMAND-LINE JAVA APPLICATION
IFeatureClass outFC = new IFeatureClassProxy(
featureWksp.createFeatureClass( shapeFile, fields, null, null,
esriFeatureType.esriFTSimple, "Shape", "”));
// Get tin node enum.
IEnumTinNode enum = tin.makeNodeEnumerator(tin.getExtent(),
esriTinQualification.esriTinInsideDataArea,
null);
// Store node to shapefile.
IFeatureCursor outCursor = outFC.IFeatureClass_insert(true);
IFeatureBuffer outBuffer = outFC.createFeatureBuffer();
IPoint point = new Point();
ITinNode node = enum.IEnumTinNode_next();
while(node != null){
node.queryAsPoint(point);
outBuffer.setShapeByRef(point);
outCursor.insertFeature(outBuffer);
node = enum.IEnumTinNode_next();
}
outCursor.flush();
tinAdv.setEmpty();
System.out.println(" - Path to Generated Shapefile: " +
shapePath +
File.separator +
shapeFile);
}catch (Exception ex) {
ex.printStackTrace();
}
}
Creating the basic fields for the 3D shapefile
Now that the method that performs the conversion from TIN to shapefile has
been created, the next step is to define the schema structure for the output 3D
shapefile. The tinToPoint() method defined above uses the createBasicFields method
you create here to generate a fields object and sends it as a parameter to the
createFeatureClass() method.
1. Create the signature for this method as follows:
/**
* @param shapeType - a geometry object type
* @param hasM - m-value precision defined
* @param hasZ - z-value precision defined
* @param spatialRef - Spatial Reference
*
* @return IFields - a collection of columns in a table
*/
private static IFields createBasicFields(int shapeType, boolean hasM,
boolean hasZ, ISpatialReference spatialRef){
2. Use a GeometryDef object to define spatial qualities of your feature class. The
most fundamental spatial quality that the method will take as a parameter is
420 • ArcGIS Engine Developer Guide