esriFeatureType 和 esriGeometryType 简介

【转自http://blog.csdn.net/u011170962/article/details/38562841】

esriFeatureType通常用来表示数据的存储结构，即物理层；

esriGeometryType通常用来表示数据的几何形状，即表现层。

esriGeometryType枚举类型详解常量值对象

esriGeometryNull

0未知类型（Unknown）esriGeometryPoint1点（Point）esriGeometryMultipoint2多点（Multipoint）esriGeometryLine13线段（Line）esriGeometryCircularArc14圆弧（CircularArc）esriGeometryEllipticArc16椭圆弧（EllipticArc）esriGeometryBezier3Curve15贝兹曲线（BezierCurve）esriGeometryPath6路径（Path）esriGeometryPolyline3多段线（Polyline）esriGeometryRing11环（Ring）esriGeometryPolygon4多边形（Polygon）esriGeometryEnvelope5外包（Envelope）esriGeometryAny7任何类型（Any valid geometry）esriGeometryBag17任意几何类型的集合（GeometryBag）esriGeometryMultiPatch9表面几何（MultiPatch）esriGeometryTriangleStrip18三角带（TriangleStrip）esriGeometryTriangleFan19三角扇形（TriangleFan）esriGeometryRay20射线（Ray）esriGeometrySphere21球体（Sphere）esriGeometryTriangles22三角形（Triangles）

esriFeatureType枚举类型详解常量值描述对象

esriFTSimple

1

Polygons, polylines, and points representing objects or places that have area, such as water bodies; linear objects, such as rivers; and localized positions, such as houses or sample sites.

Simple Feature.esriFTSimpleJunction7

Simple junction feature in a geometric network representing point objects, such as a fuse, service point, or telephone pole.

Simple Junction Feature.esriFTSimpleEdge8

Simple edge feature in a geometric network representing polyline objects, such as primary or secondary overheads.

Simple Edge Feature.esriFTComplexJunction9

Complex junction feature in a geometric network, not in general use.

Complex Junction Feature.esriFTComplexEdge10

Complex edge feature in a geometric network representing polyline objects such as primary overheads, which have midspan connectivity. Network resources flow through complex edge without interruption by midspan connectivity.

Complex Edge Feature.esriFTAnnotation11

Place or object names or identifiers, such as street names, hydrant ID numbers, land values, or elevation.

Annotation Feature.esriFTCoverageAnnotation12

Place or object names or identifiers, such as street names, hydrant ID numbers, land values, or elevation. Not supported in geodatabases, only supported in coverage datasets.

Coverage Annotation Feature.esriFTDimension13

Measurements, such as distances, lengths, widths, and depths.

Dimension Feature.esriFTRasterCatalogItem14

A raster dataset in a raster catalog that has information, such as footprints, names, metadata, and any other user-defined attributes.

Raster Catalog Item.