form1.cs

在windows mobile 5 上运行的 gps 信号工具。老外编的

            }
        }
        private void map1_OnMouseUp(MouseButtons Button, short Shift, GpsToolsNET.Position objPosition, GpsViewNET.Point objPoint)
        {
            // Check if we have a valid zoom
            if (m_pointLast != null)
            {
                map1.ZoomByBoundingBox(m_pointFirst, m_pointLast);
                map1.Update();
            }

            // Reset the points
            m_pointLast = null;
            m_pointFirst = null;
        }

        private void map1_OnMouseDown(MouseButtons Button, short Shift, GpsToolsNET.Position objPosition, GpsViewNET.Point objPoint)
        {
   /*         // Shift == 1 is when the shift button is pressed. 
                if (Shift == 1)
                {
            // This is the first point the user clicked. 
            m_pointFirst = objPoint;
                }
                else
                {
                    // Get a copy of the used ShapeFile.
                    GpsShapeNET.ShapeFile shapeFile = mapShapeFile.ShapeFile.Copy();

                    // Select a positon where we want search for a shape. 
                    shapeFile.SelectByIsInside(objPosition);

                    // Read the shape if there is any at the given position. 
                    GpsShapeNET.Shape shape = shapeFile.Read();

                    if (shape != null)
                    {
                        // Get the bounding box from the shapefile. 
                        double dMinX, dMaxX, dMinY, dMaxY, dMinM, dMaxM, dMinZ, dMaxZ;
                        shape.GetBoundingBox(out dMinX, out dMaxX, out dMinY, out dMaxY, out dMinZ, out dMaxZ, out dMinM, out dMaxM);

                        // Get the DatumGrridTemplate form the shapefile
                        GpsToolsNET.Position template = shapeFile.DatumGridTemplate;

                        // Zoom using the bounding box coodrinates. 
                        map1.ZoomByBoundingBox(dMinX, dMaxX, dMinY, dMaxY, template);
                        map1.Update();
                    }
                }*/

            //map1.OffsetX
           /*this.statusBar.Text = "No data loaded.";     = (map1.OffsetX - intarse((((map1.Width / 2)
                            - Control.MousePosition.X)
                            / 2)));*/
            //map1.OffsetY
            int ox = (int) map1.OffsetX - ((( map1.Width / 2) - Control.MousePosition.X) / 2);
            int oy = (int) map1.OffsetY - (((map1.Height / 2) - Control.MousePosition.Y)  / 2);
            this.statusBar.Text = string.Concat( ox.ToString() , ", " , oy.ToString() );

            //map1.OffsetX = map1.OffsetX + ox;
            //map1.OffsetY = map1.OffsetY + oy;
            //map1.Update();
        }

        private void map1_OnMapPaint(GpsViewNET.Map sender, Graphics e)
        {
            System.Drawing.Pen pen = new System.Drawing.Pen(Color.BlueViolet);

            if (m_pointFirst != null && m_pointLast != null)
            {
                // Get Maps position (which is centered)
                GpsToolsNET.Position mapPos = map1.Position;

                // Maps center in pixels seen from the origin of the bitmap
                // (not from the Control)
                // This value changes when Map.Zoom or Map.Rotation changes
                GpsViewNET.Point mapPoint = map1.Position2Point(mapPos);

                // This is the offset that differs the Control's orgio
                // and the raster maps (bitmaps) origin
                int offset_x = mapPoint.X - map1.Width / 2;
                int offset_y = mapPoint.Y - map1.Height / 2;

                // Draw a rectangle
                e.FillRectangle(new System.Drawing.SolidBrush(Color.FromArgb(0, 0, 255)), m_pointFirst.X - offset_x, m_pointFirst.Y - offset_y, m_pointLast.X - m_pointFirst.X, m_pointLast.Y - m_pointFirst.Y);
            }
        }

        private void menuItem_loadDataSet_Click(object sender, EventArgs e)
        {
            // Open a dialog to pick a file
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                // Create a ShapeFile
                shapeFile = new GpsShapeNET.ShapeFile();

                // Open the ShapeFile
                shapeFile.Open(openFileDialog.FileName, GpsShapeNET.FileMode.FILE_READ);

                // if the DatumGridTemplate wasn't set automatically it wasn't a complete prj-file available
                if (shapeFile.DatumGridTemplate == null)
                {
                    // Since we need a projection we have to guess what it is...

                    // get the bounding box
                    double Xmin, Xmax, Ymin, Ymax, Zmin, Zmax, Mmin, Mmax;
                    shapeFile.GetBoundingBox(out Xmin, out Xmax, out Ymin, out Ymax, out Zmin, out Zmax, out Mmin, out Mmax);

                    string guessStr = "";

                    GpsToolsNET.Position nodePosition = new GpsToolsNET.Position();

                    // Take a guess if we should use a datum or grid. 
                    // A datum shapefile will have its bounds in degrees...
                    if (Ymax <= 90 && Ymin >= -90 && Xmax <= 180 && Xmin >= -180)
                    {
                        nodePosition.Datum = GpsToolsNET.Datum.WGS_84;
                        guessStr = nodePosition.Datum.ToString();
                    }
                    else
                    {
                        // ...whereas a grid shapefile will have its bounds in meters..
                        nodePosition.Grid = GpsToolsNET.Grid.UTM_NORTH;
                        nodePosition.Zone = "15";
                        guessStr = nodePosition.Grid.ToString();
                    }

                    // set the guessed DatumGridTemplate..
                    shapeFile.DatumGridTemplate = nodePosition;

                    // display to user that we guessed!
                    MessageBox.Show("No projection data was found. Guessing the projection of this file as a " + guessStr);
                }

                // Create a MapShapeFile to draw the contents
                mapShapeFile = map1.NewMapShapeFile(shapeFile);

                // Set a resolution of 2 pixels - all shapes smaller than this will not be drawn. 
                // Nodes that are closer together than this will also not be drawn.
                mapShapeFile.Resolution = 2.0;

                // Create a brush with green color and transparent
                GpsViewNET.Brush brush = new GpsViewNET.Brush();
                brush.Blue = 255;
                brush.Red = 128;
                brush.Green = 128;
                brush.Transparent = false;
                // Set the brush to the background property of the mapshapefile
                mapShapeFile.Background = brush;

                // set statusbar text
                this.statusBar.Text = "Data added.";

                // call an update of the Map to draw it							
                map1.Update();
            }
        }

        private void menuItem_exit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if ((e.KeyCode == System.Windows.Forms.Keys.Up))
            {
                map1.OffsetY -= 2;
                map1.Update(); 
                this.statusBar.Text = string.Concat(map1.OffsetY.ToString(), ", ", map1.OffsetX.ToString());
            }
            if ((e.KeyCode == System.Windows.Forms.Keys.Down))
            {
                map1.OffsetY += 2;
                map1.Update();
                this.statusBar.Text = string.Concat(map1.OffsetY.ToString(), ", ", map1.OffsetX.ToString());

            }
            if ((e.KeyCode == System.Windows.Forms.Keys.Left))
            {
                map1.OffsetX -= 2;
                map1.Update();
                this.statusBar.Text = string.Concat(map1.OffsetY.ToString(), ", ", map1.OffsetX.ToString());
            }
            if ((e.KeyCode == System.Windows.Forms.Keys.Right))
            {
                map1.OffsetX += 2;
                map1.Update();
                this.statusBar.Text = string.Concat(map1.OffsetY.ToString(), ", ", map1.OffsetX.ToString());
            }
            if ((e.KeyCode == System.Windows.Forms.Keys.Enter))
            {
                // Enter
            }

        }



    }
}