/// <summary>
/// 更改断点
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_Changbreak_Click(object sender, EventArgs e)
{
int count = DG_break.RowCount - 1;
ClassBreakRenderer renderer = (ClassBreakRenderer)slayer.Renderer;
List <double> newbreak = new List <double>();
newbreak.Add(renderer.MinValue);
newbreak.Add(renderer.MaxValue);
try
{
for (int i = 0; i < count; i++)
{
double value = Convert.ToDouble(DG_break[1, i].Value);
if (value > renderer.MinValue && value < renderer.MaxValue)
{
newbreak.Add(value);
}
}
newbreak = newbreak.Distinct().ToList();
newbreak.Sort();
newbreak.RemoveAt(0);
newbreak.RemoveAt(newbreak.Count - 1);
if (RB_1.Checked == true)
{
CB_color.Enabled = true;
((ClassBreakRenderer)slayer.Renderer).Mode = 1;
((ClassBreakRenderer)slayer.Renderer).ClassBreakChange(newbreak);
Bitmap newcolor = new Bitmap(CB_color.Image);
Color startcolor = newcolor.GetPixel(1, newcolor.Height / 2);
Color endcolor = newcolor.GetPixel(newcolor.Width - 1, newcolor.Height / 2);
((ClassBreakRenderer)slayer.Renderer).SetColor(startcolor, endcolor);
}
else
{
CB_color.Enabled = false;
((ClassBreakRenderer)slayer.Renderer).Mode = 2;
((ClassBreakRenderer)slayer.Renderer).ClassBreakChange(newbreak);
}
ShowSymbols(slayer);
ShowBreaks();
}
catch
{
MessageBox.Show("错误，出现异常");
ShowBreaks();
}
}
public void Save(string save_path)
{
_filepath = save_path;
FileStream fs = new FileStream(_filepath, FileMode.Create);
StreamWriter sw = new StreamWriter(fs);
string line = _map.MapName + " " + _Geocoordinate.ToString() + " " + _Procoordinate.ToString() + " "
+ _ratio.ToString("F2") + " " + _scaleindex.ToString() + " " + CenterPos.X.ToString() + " " + CenterPos.Y.ToString() + " " + _map.LayerNum.ToString();
sw.WriteLine(line);
//对每一图层
for (int i = 0; i < _map.LayerNum; i++)
{
sw.WriteLine(_map.Layers[i].FilePath);
sw.WriteLine(_map.Layers[i].Visible.ToString());
switch (_map.Layers[i].rendertype)
{
//唯一值渲染
case RendererType.UniqueValueRenderer:
UniqueValueRenderer Urenderer = (UniqueValueRenderer)_map.Layers[i].Renderer;
string filename_uvr = _map.Layers[i].rendertype.ToString() + " " + Urenderer.Field;
sw.WriteLine(filename_uvr);
break;
//分级渲染
case RendererType.ClassBreakRenderer:
ClassBreakRenderer Crenderer = (ClassBreakRenderer)_map.Layers[i].Renderer;
string filename_cbr = _map.Layers[i].rendertype.ToString() + " " + Crenderer.Field;
sw.WriteLine(filename_cbr);
break;
//简单渲染
default:
sw.WriteLine(_map.Layers[i].rendertype.ToString());
break;
}
//判断是否有注记信息
bool hastext = _map.Layers[i].HasText;
sw.WriteLine(hastext.ToString());
if (hastext == true)
{
sw.WriteLine(_map.Layers[i].Textrender.Field);
}
}
sw.Close();
fs.Close();
}
/// <summary>
/// 显示断点表格
/// </summary>
private void ShowBreaks()
{
ClassBreakRenderer renderer = (ClassBreakRenderer)slayer.Renderer;
if (renderer.Mode == 1)
{
RB_1.Checked = true;
}
else
{
RB_2.Checked = true;
}
if (DG_break.RowCount == 0)
{
CB_color.Image = new Bitmap(((ClassBreakRenderer)slayer.Renderer).ShowLinearGradient(), CB_color.Size);
}
int sFieldCount = renderer.BreakCount;
DG_break.RowCount = sFieldCount + 3;
for (int i = 0; i < sFieldCount + 2; i++)
{
//显示值
if (i == 0)
{
DG_break[0, i].Value = "Min";
DG_break[1, i].Value = renderer.MinValue;
}
else if (i != sFieldCount + 1)
{
DG_break[0, i].Value = i.ToString();
DG_break[1, i].Value = renderer.Breaks[i - 1];
}
else
{
DG_break[0, i].Value = "Max";
DG_break[1, i].Value = renderer.MaxValue;
}
}
}
/// <summary>
/// 画单个图层方法
/// </summary>
/// <param name="g"></param>
/// <param name="layer"></param>
/// <param name="start"></param>
/// <param name="scale"></param>
/// <returns></returns>
private Point LegendOfLayer(Graphics g, Map.MyLayer layer, Point start, double resizescale)
{
int layerdis = (int)(20 * resizescale);
int leftdis = (int)(resizescale * 8);
int columdis = (int)(resizescale * 12);
int rowdis = (int)(resizescale * 10);
Point nowstart = new Point(start.X + leftdis, start.Y + layerdis);
g.DrawString(layer.LayerName, new Font("黑体", (float)(resizescale * 10)), Brushes.Black, nowstart);
nowstart.Y += ((int)(resizescale * 10) + rowdis);
Font regularfont = new Font("宋体", (float)(resizescale * 9));
int symbolcount = layer.Renderer.SymbolCount;
switch (layer.rendertype)
{
case MyRenderer.RendererType.UniqueValueRenderer:
UniqueValueRenderer urenderer = (UniqueValueRenderer)layer.Renderer;
for (int i = 0; i < symbolcount; i++)
{
Bitmap autoubit = urenderer.FindSymbolByIndex(i).GetBitmap();
Image uimg = new Bitmap(autoubit, new Size((int)(resizescale * autoubit.Width), (int)(resizescale * autoubit.Height)));
g.DrawImage(uimg, nowstart);
g.DrawString(urenderer.FindValue(i), regularfont, Brushes.Black, new Point(nowstart.X + (int)(resizescale * 42) + columdis, nowstart.Y + (int)(resizescale * 6)));
nowstart.Y += (int)(resizescale * 24) + rowdis;
}
break;
case MyRenderer.RendererType.ClassBreakRenderer:
ClassBreakRenderer crenderer = (ClassBreakRenderer)layer.Renderer;
for (int i = 0; i < symbolcount; i++)
{
Bitmap autocbit = crenderer.FindSymbolByIndex(i).GetBitmap();
Image cimg = new Bitmap(autocbit, new Size((int)(resizescale * autocbit.Width), (int)(resizescale * autocbit.Height)));
g.DrawImage(cimg, nowstart);
string value;
if (i == 0)
{
value = crenderer.MinValue.ToString() + " - " + crenderer.Breaks[i].ToString();
}
else if (i != crenderer.BreakCount)
{
value = crenderer.Breaks[i - 1].ToString() + " - " + crenderer.Breaks[i].ToString();
}
else
{
value = crenderer.Breaks[i - 1].ToString() + " - " + crenderer.MaxValue.ToString();
}
g.DrawString(value, regularfont, Brushes.Black, new Point((nowstart.X + (int)(resizescale * 42) + columdis), (nowstart.Y + (int)(resizescale * 6))));
nowstart.Y += (int)(resizescale * 24) + rowdis;
}
break;
default:
SimpleRenderer srenderer = (SimpleRenderer)layer.Renderer;
Bitmap autosbit = srenderer.SymbolStyle.GetBitmap();
Image simg = new Bitmap(autosbit, new Size((int)(resizescale * autosbit.Width), (int)(resizescale * autosbit.Height)));
g.DrawImage(simg, nowstart);
g.DrawString(layer.LayerName, regularfont, Brushes.Black, new Point((nowstart.X + (int)(resizescale * 42) + columdis), (nowstart.Y + (int)(resizescale * 6))));
nowstart.Y += ((int)(resizescale * 24) + rowdis);
break;
}
return(nowstart);
}