private void Class_Apply_Click(object sender, EventArgs e)
{
WEMapObjects.WEClassBreaksRender newStyle = new WEMapObjects.WEClassBreaksRender();
newStyle.SymbolMethod = 3;
newStyle.Field = Class_Field.SelectedItem.ToString();
newStyle.BreakCount = Convert.ToInt32(ClassNum.SelectedItem);
if (_mapType == 1)
{
newStyle.SymbolStyle = Class_symbol.SelectedIndex + 1;
newStyle.FromColor = Class_FromColor.BackColor; //起始颜色
newStyle.ToColor = Class_ToColor.BackColor; //终止颜色
newStyle.BoundaryWidth = Convert.ToDouble(Single_bdrWidth.Value); //边界线宽
newStyle.BoundaryColor = Class_bdrColor.BackColor; //边界颜色
newStyle.FromSize = Convert.ToDouble(Class_FromSize); //起始尺寸
newStyle.ToSize = Convert.ToDouble(Class_ToSize); //终止尺寸
}
if (_mapType == 2)
{
newStyle.SymbolStyle = Class_symbol.SelectedIndex;
newStyle.FromColor = Class_FromColor.BackColor; //起始颜色
newStyle.ToColor = Class_ToColor.BackColor; //终止颜色
newStyle.FromSize = Convert.ToDouble(Class_FromSize); //起始尺寸
newStyle.ToSize = Convert.ToDouble(Class_ToSize); //终止尺寸
}
if (_mapType == 3)
{
newStyle.FromColor = Class_FromColor.BackColor; //起始颜色
newStyle.ToColor = Class_ToColor.BackColor; //终止颜色
newStyle.BoundaryWidth = Convert.ToDouble(Single_bdrWidth.Value); //边界线宽
newStyle.BoundaryColor = Class_bdrColor.BackColor; //边界颜色
}
newStyle.LabelVisible = checkBox1.Checked;
//DialogResult = DialogResult.OK;
SetStyle = newStyle;
_parentForm.AllLayer[_styleLayerNum].SymbolStyle = SetStyle;
_parentForm.AllLayer[_styleLayerNum].Label = SetLabel;
_parentForm.weMapControl1.AllLayer = _parentForm.AllLayer;
_parentForm.weMapControl1.Refresh();
//_parentForm.AllLayer[]
}
/// <summary>
/// 绘制
/// </summary>
/// <param name="e"></param>
public override void Draw(PaintEventArgs e)
{
if (!Visible)
{
return;
}
//Graphics g = e.Graphics;
switch (_LayerStyle.SymbolMethod)
{
case 1:
foreach (var i in _ShowFeatures)
{
i.Geometries.Draw(e, _LayerStyle, "");
}
break;
case 2:
foreach (var i in _ShowFeatures)
{
i.Geometries.Draw(e, ((WEUniqueValueRender)_LayerStyle).Symbols[
((WEUniqueValueRender)_LayerStyle).UniqueValue.IndexOf(i.Attributes[((WEUniqueValueRender)_LayerStyle).Field].ToString())
], "");
}
break;
case 3:
WEClassBreaksRender style = (WEClassBreaksRender)_LayerStyle;
if (_ShowFeatures.Count == 0)
{
return;
}
if (style.Field == "FID")
{
double diff = _Features.Count() * 1.0 / style.BreakCount;
for (int i = 0; i < _ShowFeatures.Count; i++)
{
int rank = (int)Math.Ceiling(_ShowFeatures[i].ID / diff + 0.1) - 1;
Color FromColor = Color.FromArgb(
(int)style.FromColor.R + ((int)style.ToColor.R - (int)style.FromColor.R) / (style.BreakCount - rank),
(int)style.FromColor.G + ((int)style.ToColor.G - (int)style.FromColor.G) / (style.BreakCount - rank),
(int)style.FromColor.B + ((int)style.ToColor.B - (int)style.FromColor.B) / (style.BreakCount - rank)
);
WEStyle newSty = new WEStyle(style.SymbolMethod, style.SymbolStyle, style.BoundaryColor,
FromColor, FromColor, style.Size, style.BoundaryWidth);
_Features[i].Geometries.Draw(e, newSty, "");
}
}
else
{
double min = Convert.ToDouble(_ShowFeatures[0].Attributes[style.Field]), max = Convert.ToDouble(_ShowFeatures[0].Attributes[style.Field]);
//double min = (double)_ShowFeatures[0].Attributes[style.Field], max = (double)_ShowFeatures[0].Attributes[style.Field];
for (int i = 0; i < _Features.Count(); i++)
{
double helo = Convert.ToDouble(_Features[i].Attributes[style.Field]);
if (helo > max)
{
max = helo;
}
if (helo < min)
{
min = helo;
}
}
double diff = (max - min) / style.BreakCount;
foreach (var i in _ShowFeatures)
{
int rank = (int)((Convert.ToDouble(i.Attributes[style.Field]) - min - 0.0000001) / diff);
Color FromColor = Color.FromArgb(
(int)style.FromColor.R + ((int)style.ToColor.R - (int)style.FromColor.R) / (style.BreakCount - rank),
(int)style.FromColor.G + ((int)style.ToColor.G - (int)style.FromColor.G) / (style.BreakCount - rank),
(int)style.FromColor.B + ((int)style.ToColor.B - (int)style.FromColor.B) / (style.BreakCount - rank)
);
WEStyle newSty = new WEStyle(style.SymbolMethod, style.SymbolStyle, style.BoundaryColor,
FromColor, FromColor, style.Size, style.BoundaryWidth);
//_Features[i].Geometries.Draw(e, newSty, "");
//WEStyle newSty = style.Symbols[(int)(((double)(i.Attributes[style.Field]) - min - 0.0000001) / diff)];
i.Geometries.Draw(e, newSty, "");
}
}
break;
}
if (_LayerStyle.LabelVisible)
{
DrawLabel(e);
}
}