private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
TopoPolygon SelectedTopoPolygon = sTopoPolygonSet.TopoPolygonList[comboBox1.SelectedIndex];
textBox1.Text = string.Format("PID:\t{0}\r\n弧段数:\t{1}\r\n周长:\t{2}\r\n面积:\t{3}",
SelectedTopoPolygon.PID, SelectedTopoPolygon.TopologyArcs.Count,
SelectedTopoPolygon.GetPerimeter().ToString("0.00"),
SelectedTopoPolygon.GetArea().ToString("0.00"));
}
private void agisControl_MouseDoubleClick(object sender, MouseEventArgs e)
{
MouseLocation = e.Location;
GridDivisionScreenRefresh();
if (this.UserOperation != UserOperationType.DisplayInGrid ||
GridDivisionCount_X * EachGridDivisionCount_X < 1 ||
GridDivisionCount_Y * EachGridDivisionCount_Y < 1 ||
this.IsGridVisible == false)
{
return;
}
if (e.Clicks == 2 && this.IsQueryIntersection == true && this.ShowTopology == false && this.IsGridVisible == true)
{
SelectPointX = SelectPointY = -1;
int gridScreen_AxisX_count = GridScreen_AxisX.Count;
for (int i = 0; i < gridScreen_AxisX_count; i++)
{
if (Math.Abs(GridScreen_AxisX[i] - this.MouseLocation.X) < this.SelectPixelThreshold)
{
SelectPointX = this.agisControl.GetRealWorldLocX((float)GridScreen_AxisX[i]);
}
}
int gridScreen_AxisY_count = GridScreen_AxisY.Count;
for (int i = 0; i < gridScreen_AxisY_count; i++)
{
if (Math.Abs(GridScreen_AxisY[i] - this.MouseLocation.Y) < this.SelectPixelThreshold)
{
SelectPointY = this.agisControl.GetRealWorldLocY((float)GridScreen_AxisY[i]);
}
}
//选中了格网点
if (SelectPointX != -1 && SelectPointY != -1 && agisControl.GridIntMethod != Mehtod.GridInterpolationMehtod.None)
{
this.agisControl.Refresh();
string MethodName = "";
string Para = "";
if (agisControl.GridIntMethod == Mehtod.GridInterpolationMehtod.方位加权平均法)
{
if (agisControl.方位加权平均法SectorNum < 0)
{
MessageBox.Show("按方位加权平均法 参数尚未设置", "错误"); return;
}
MethodName = "按方位加权平均法";
Para = string.Format("{0}:{1}", "每个象限等分扇区数N0", agisControl.方位加权平均法SectorNum / 4);
}
else if (agisControl.GridIntMethod == Mehtod.GridInterpolationMehtod.距离平方倒数法)
{
if (agisControl.距离平方倒数法NearPts < 0)
{
MessageBox.Show("距离平方倒数法 参数尚未设置", "错误"); return;
}
MethodName = "距离平方倒数法";
Para = string.Format("{0}:{1}", "选取距插值点最近的N个点", agisControl.距离平方倒数法NearPts);
}
MessageBox.Show(string.Format("{0}\t\r\nX:{1}\t\nY:{2}\t\r\nValue:{3}\r\n\r\n{4}\r\n{5}",
"格网点属性信息：", SelectPointX.ToString("0.00"), SelectPointY.ToString("0.00"),
agisControl.GetGridInterpolationValue(SelectPointX, SelectPointY).ToString("0.000"),
"插值方法：" + MethodName, Para
), "属性查询");
}
}
if (e.Clicks == 2 && this.IsQueryTopoPolygon == true && this.ShowTopology == true && this.ShowTopoPolygon == true)
{
TopoPoint clickLoc = new TopoPoint(agisControl.GetRealWorldLocX(e.X), agisControl.GetRealWorldLocX(e.Y), 0, false);
this.SelectedTopoPolygon = this.mTopoPolygonSet.GetClickPointInsidePolygon(clickLoc);
this.agisControl.Refresh();
if (SelectedTopoPolygon != null)
{
MessageBox.Show(string.Format("PID:{0}\r\n弧段数:{1}\r\n周长:{2}\r\n面积:{3}",
SelectedTopoPolygon.PID, SelectedTopoPolygon.TopologyArcs.Count,
SelectedTopoPolygon.GetPerimeter().ToString("0.00"),
SelectedTopoPolygon.GetArea().ToString("0.00")), "多边形信息");
}
}
}