示例#1
0
        /// <summary>
        /// 生产SHP
        /// </summary>
        /// <param name="matrix"></param>
        /// <param name="fullname"></param>
        private void ToSHP(ByteMatrix matrix, string fullname)
        {
            double    size = 6;
            SHPHandle hSHP = null;
            DBFHandle hDBF = null;

            try {
                SHPT shptype = SHPT.POLYGON;
                // 创建SHP文件
                hSHP = SHPHandle.Create(fullname, shptype);
                if (hSHP == null)
                {
                    throw new Exception("Unable to create SHP:" + fullname);
                }
                // 创建DBF文件
                hDBF = DBFHandle.Create(fullname);
                if (hDBF == null)
                {
                    throw new Exception("Unable to create DBF:" + fullname);
                }
                if (hDBF.AddField("_row", FT.Integer, 10, 0) < 0)
                {
                    throw new Exception("DBFHandle.AddField(_row,Integer,10,0) failed.");
                }
                if (hDBF.AddField("_col", FT.Integer, 10, 0) < 0)
                {
                    throw new Exception("DBFHandle.AddField(_col,Integer,10,0) failed.");
                }

                // 绘制二维码
                int record_index = 0;
                for (int row = 0; row < matrix.Width; row++)
                {
                    for (int col = 0; col < matrix.Height; col++)
                    {
                        if (matrix[row, col] == 0)
                        {
                            continue;
                        }

                        // 构造SHPRecord
                        SHPRecord record = new SHPRecord()
                        {
                            ShapeType = shptype
                        };
                        // 分段开始
                        record.Parts.Add(record.Points.Count);
                        // 添加4个角点
                        double ox = row * size + 300;
                        double oy = matrix.Height * size - col * size;
                        record.Points.Add(new double[] { ox, oy, 0, 0 });
                        record.Points.Add(new double[] { ox + size, oy, 0, 0 });
                        record.Points.Add(new double[] { ox + size, oy + size, 0, 0 });
                        record.Points.Add(new double[] { ox, oy + size, 0, 0 });
                        // 写图形
                        int      num_parts  = record.NumberOfParts;   // 总共分为几段
                        int[]    parts      = record.Parts.ToArray(); // 每一个分段的起始节点索引
                        int      num_points = record.NumberOfPoints;  // 所有节点总数
                        double[] xs         = new double[num_points]; // 所有节点X坐标
                        double[] ys         = new double[num_points]; // 所有节点Y坐标
                        double[] zs         = new double[num_points]; // 所有节点Z坐标
                        double[] ms         = new double[num_points]; // 所有节点M坐标
                        for (int n = 0; n < num_points; n++)
                        {
                            xs[n] = record.Points[n][0];            // X坐标
                            ys[n] = record.Points[n][1];            // Y坐标
                            zs[n] = record.Points[n][2];            // Z值
                            ms[n] = record.Points[n][3];            // M值
                        }
                        // PS: 节点 "逆时针"是加 "顺时针"是减
                        SHPObject shpobj = SHPObject.Create(shptype,    // 图形类别
                                                            -1,         // 图形ID -1表示新增
                                                            num_parts,  // 总共分为几段
                                                            parts,      // 每一个分段的起始节点索引
                                                            null,       // 每段的类别
                                                            num_points, // 所有节点总数
                                                            xs,         // 所有节点的X坐标
                                                            ys,         // 所有节点的Y坐标
                                                            zs,         // 所有节点的Z值
                                                            ms);        // 所有节点的M值
                        hSHP.WriteObject(-1, shpobj);
                        // 写属性
                        //hDBF.WriteNULLAttribute(record_index, 0);
                        hDBF.WriteDoubleAttribute(record_index, 0, row);
                        hDBF.WriteDoubleAttribute(record_index, 1, col);
                        record_index++;
                    }
                }
            }
            catch (Exception) {
                throw;
            }
            finally {
                if (hSHP != null)
                {
                    hSHP.Close();
                }
                if (hDBF != null)
                {
                    hDBF.Close();
                }
            }
        }
示例#2
0
        /// <summary>
        /// Write a small multipoint file.
        /// </summary>
        static void Test_WriteMultiPoints( SHPT nSHPType, string pszFilename )
        {
            SHPHandle   hSHPHandle;
            SHPObject   psShape;
            double[]    x = new double[4], y = new double[4];
            double[]    z = new double[4], m = new double[4];
            int         i, iShape;

            hSHPHandle = SHPHandle.Create( pszFilename, nSHPType );

            for( iShape = 0; iShape < 3; iShape++ )
            {
                for( i = 0; i < 4; i++ )
                {
                    x[i] = iShape * 10 + i + 1.15;
                    y[i] = iShape * 10 + i + 2.25;
                    z[i] = iShape * 10 + i + 3.35;
                    m[i] = iShape * 10 + i + 4.45;
                }

                psShape = SHPObject.Create( nSHPType, -1, 0, null, null,
                                           4, x, y, z, m );
                hSHPHandle.WriteObject( -1, psShape );
                psShape = null;
            }

            hSHPHandle.Close();
        }
示例#3
0
        /// <summary>
        /// Write a small point file.
        /// </summary>
        static void Test_WritePoints( SHPT nSHPType, string pszFilename )
        {
            SHPHandle   hSHPHandle;
            SHPObject   psShape;
            double[]    x = new double[1], y = new double[1];
            double[]    z = new double[1], m = new double[1];

            hSHPHandle = SHPHandle.Create( pszFilename, nSHPType );

            x[0] = 1.0;
            y[0] = 2.0;
            z[0] = 3.0;
            m[0] = 4.0;
            psShape = SHPObject.Create( nSHPType, -1, 0, null, null,
                                       1, x, y, z, m );
            hSHPHandle.WriteObject( -1, psShape );
            psShape = null;

            x[0] = 10.0;
            y[0] = 20.0;
            z[0] = 30.0;
            m[0] = 40.0;
            psShape = SHPObject.Create( nSHPType, -1, 0, null, null,
                                       1, x, y, z, m );
            hSHPHandle.WriteObject( -1, psShape );
            psShape = null;

            hSHPHandle.Close();
        }
示例#4
0
        /// <summary>
        /// Write a small arc or polygon file.
        /// </summary>
        static void Test_WriteArcPoly( SHPT nSHPType, string pszFilename )
        {
            SHPHandle   hSHPHandle;
            SHPObject   psShape;
            double[]    x = new double[100], y = new double[100];
            double[]    z = new double[100], m = new double[100];
            int[]       anPartStart = new int[100];
            int[]       anPartType = new int[100], panPartType;
            int         i, iShape;

            hSHPHandle = SHPHandle.Create( pszFilename, nSHPType );

            if( nSHPType == SHPT.MULTIPATCH )
                panPartType = anPartType;
            else
                panPartType = null;

            for( iShape = 0; iShape < 3; iShape++ )
            {
                x[0] = 1.0;
                y[0] = 1.0+iShape*3;
                x[1] = 2.0;
                y[1] = 1.0+iShape*3;
                x[2] = 2.0;
                y[2] = 2.0+iShape*3;
                x[3] = 1.0;
                y[3] = 2.0+iShape*3;
                x[4] = 1.0;
                y[4] = 1.0+iShape*3;

                for( i = 0; i < 5; i++ )
                {
                    z[i] = iShape * 10 + i + 3.35;
                    m[i] = iShape * 10 + i + 4.45;
                }

                psShape = SHPObject.Create( nSHPType, -1, 0, null, null,
                                           5, x, y, z, m );
                hSHPHandle.WriteObject( -1, psShape );
                psShape = null;
            }

            /* -------------------------------------------------------------------- */
            /*      Do a multi part polygon (shape).  We close it, and have two     */
            /*      inner rings.                                                    */
            /* -------------------------------------------------------------------- */
            x[0] = 0.0;
            y[0] = 0.0;
            x[1] = 0;
            y[1] = 100;
            x[2] = 100;
            y[2] = 100;
            x[3] = 100;
            y[3] = 0;
            x[4] = 0;
            y[4] = 0;

            x[5] = 10;
            y[5] = 20;
            x[6] = 30;
            y[6] = 20;
            x[7] = 30;
            y[7] = 40;
            x[8] = 10;
            y[8] = 40;
            x[9] = 10;
            y[9] = 20;

            x[10] = 60;
            y[10] = 20;
            x[11] = 90;
            y[11] = 20;
            x[12] = 90;
            y[12] = 40;
            x[13] = 60;
            y[13] = 40;
            x[14] = 60;
            y[14] = 20;

            for( i = 0; i < 15; i++ )
            {
                z[i] = i;
                m[i] = i*2;
            }

            anPartStart[0] = 0;
            anPartStart[1] = 5;
            anPartStart[2] = 10;

            anPartType[0] = (int)SHPP.RING;
            anPartType[1] = (int)SHPP.INNERRING;
            anPartType[2] = (int)SHPP.INNERRING;

            psShape = SHPObject.Create( nSHPType, -1, 3, anPartStart, panPartType,
                                       15, x, y, z, m );
            hSHPHandle.WriteObject( -1, psShape );
            psShape = null;

            hSHPHandle.Close();
        }