/// <summary>
///
/// </summary>
/// <param name="map"></param>
/// <returns></returns>
public double CalcScale(AxMapObjects2.AxMap map)
{
System.Drawing.Graphics g = System.Drawing.Graphics.FromHwnd((System.IntPtr)map.hWnd);
MPoint[] pts = new MPoint[2];
pts[0] = new MPoint();
pts[0].x = map.Extent.Left;
pts[0].y = map.Extent.Bottom;
pts[1] = new MPoint();
pts[1].x = map.Extent.Right;
pts[1].y = map.Extent.Top;
double Len1 = pts[1].x - pts[0].x;
double Len2 = pts[1].y - pts[0].y;
return(Len1 * Len2);
#region ...
// System.Drawing.Graphics g = System.Drawing.Graphics.FromHwnd((System.IntPtr)map.hWnd);
//
// MPoint[] pts = new MPoint[2];
// pts[0] = new MPoint();
// pts[0].x = map.Extent.Left;
// pts[0].y = map.Extent.Top;
// pts[1] = new MPoint();
// pts[1].x = map.Extent.Right;
// pts[1].y = map.Extent.Top;
//
// double dLen1 = this.CalcLenght(pts,2);
//
// double dLen2 = map.Width / g.DpiX * 2.54 /100;
//
// return dLen1 / dLen2;
#endregion //...
}
/// <summary>
///
/// </summary>
/// <param name="map"></param>
/// <returns></returns>
public double CalcScale(AxMapObjects2.AxMap map)
{
System.Drawing.Graphics g = System.Drawing.Graphics.FromHwnd((System.IntPtr)map.hWnd);
MPoint[] pts = new MPoint[2];
pts[0] = new MPoint();
pts[0].x = map.Extent.Left;
pts[0].y = map.Extent.Bottom;
pts[1] = new MPoint();
pts[1].x = map.Extent.Right;
pts[1].y = map.Extent.Top;
double Len1=pts[1].x-pts[0].x;
double Len2=pts[1].y-pts[0].y;
return Len1*Len2;
#region ...
// System.Drawing.Graphics g = System.Drawing.Graphics.FromHwnd((System.IntPtr)map.hWnd);
//
// MPoint[] pts = new MPoint[2];
// pts[0] = new MPoint();
// pts[0].x = map.Extent.Left;
// pts[0].y = map.Extent.Top;
// pts[1] = new MPoint();
// pts[1].x = map.Extent.Right;
// pts[1].y = map.Extent.Top;
//
// double dLen1 = this.CalcLenght(pts,2);
//
// double dLen2 = map.Width / g.DpiX * 2.54 /100;
//
// return dLen1 / dLen2;
#endregion //...
}
/// <summary>
///
/// </summary>
/// <param name="pt"></param>
/// <param name="nSize"></param>
/// <returns></returns>
private double CalcLenght(MPoint[] pt,int nSize)
{
double dLength = 0;
double x1=0,x2=0,y1=0,y2=0;
int nCenterL = ((int)(pt[0].x)/6+1)*6-3;
for(int i=0;i<nSize-1;i++)
{
CalGuassFromLB(pt[i].x, pt[i].y, ref x1, ref y1, nCenterL);
CalGuassFromLB(pt[i+1].x, pt[i+1].y, ref x2, ref y2, nCenterL);
dLength += Math.Sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
}
return dLength;
}