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C# IPolygon.SnapToSpatialReference方法代码示例

本文整理汇总了C#中IPolygon.SnapToSpatialReference方法的典型用法代码示例。如果您正苦于以下问题:C# IPolygon.SnapToSpatialReference方法的具体用法?C# IPolygon.SnapToSpatialReference怎么用?C# IPolygon.SnapToSpatialReference使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在IPolygon的用法示例。


在下文中一共展示了IPolygon.SnapToSpatialReference方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Expand

        /**
         * Creates a new SEE object representing the buffered union of the selection, unioned
         * with this object and the newShape.
         *
         * If any parameters are null, this method should fail gracefully.
         */
        public void Expand(IPolygon expansion, ISDUTExtension ext)
        {
            if(expansion == null)
                return;

            ITopologicalOperator2 op_expansion = (ITopologicalOperator2)expansion;
            op_expansion.IsKnownSimple_2 = false;
            try
            {
                op_expansion.Simplify();
            }
            catch (Exception e)
            {
                Logger.Warn(e);
            }

            if(shape == null)
            {
                shape = (IPolygon)((IClone)expansion).Clone();
                if (shape.SpatialReference == null || shape.SpatialReference is IUnknownCoordinateSystem)
                {
                    shape.SpatialReference = ext.FocusMap.SpatialReference;
                }
                return;
            }
            // buggy
            // http://forums.esri.com/Thread.asp?c=93&f=1170&t=88297#242834

            ITopologicalOperator2 op_shape = (ITopologicalOperator2)shape;
            op_shape.IsKnownSimple_2 = false;
            try
            {
                op_shape.Simplify();
            }
            catch (Exception e)
            {
                Logger.Warn(e);
            }

            if (shape.SpatialReference == null || shape.SpatialReference is IUnknownCoordinateSystem)
            {
                shape.SpatialReference = ext.FocusMap.SpatialReference;
            }

            if (expansion.SpatialReference == null || shape.SpatialReference is IUnknownCoordinateSystem)
            {
                expansion.SpatialReference = ext.FocusMap.SpatialReference;
            }

            expansion.Project(shape.SpatialReference);

            ISpatialReference sr = shape.SpatialReference;

            shape.SnapToSpatialReference();
            expansion.SnapToSpatialReference();

            shape = (IPolygon)(op_shape.Union((IPolygon)expansion));
            shape.SpatialReference = sr;

            if (shape.SpatialReference == null || shape.SpatialReference is IUnknownCoordinateSystem)
            {
                shape.SpatialReference = ext.FocusMap.SpatialReference;
            }

            op_shape = (ITopologicalOperator2)shape;
            try
            {
                op_shape.Simplify();
            }
            catch (Exception e)
            {
                Logger.Warn(e);
            }
            return;
        }
开发者ID:EAWCS1,项目名称:SUITT,代码行数:81,代码来源:SEE.cs


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