public static void RenderFeature(MG_Feature f, MG_MapView mapview, Graphics g)
{
//int realValue = GetRealValue(f.Symbol.LineWidth, mapview);
Pen pen = new Pen(f.Symbol.OutlineColor, f.Symbol.LineWidth);
SolidBrush brush = new SolidBrush(f.Symbol.FillColor);
RenderGeometry(g, pen, brush, mapview, f.Geometry);
}
public MG_Feature(MG_Feature f)
{
this.FieldSet = new MG_FieldSet();
this.ValueSet = new MG_ValueSet();
this.Geometry = new MG_Geometry();
this.Symbol = new MG_Symbol();
for (int i = 0; i < f.GetFieldCount(); i++)
{
MG_Field field = f.GetFieldSet().GetAt(i);
MG_Field newField = new MG_Field(field);
this.FieldSet.Add(newField);
MG_Value value = f.GetValue(i);
MG_Value newValue = new MG_Value(value);
this.ValueSet.Add(newValue);
}
MG_Geometry g = f.GetGeometry();
MG_Geometry newGeom = new MG_Geometry();
switch (g.Type)
{
case MG_GeometryType.NONE:
break;
case MG_GeometryType.POINT:
newGeom = new MG_Point(g as MG_Point);
break;
case MG_GeometryType.MULTIPOINT:
newGeom = new MG_MultiPoint(g as MG_MultiPoint);
break;
case MG_GeometryType.LINESTRING:
newGeom = new MG_LineString(g as MG_LineString);
break;
case MG_GeometryType.MULTILINESTRING:
newGeom = new MG_MultiLineString(g as MG_MultiLineString);
break;
case MG_GeometryType.POLYGON:
newGeom = new MG_Polygon(g as MG_Polygon);
break;
case MG_GeometryType.MULTIPOLYGON:
newGeom = new MG_MultiPolygon(g as MG_MultiPolygon);
break;
}
this.Geometry = newGeom;
MG_Symbol newSymbol = new MG_Symbol(f.GetSymbol());
this.Symbol = newSymbol;
}
// feature
public void AddFeature(MG_Feature feature)
{
if (this.Type == MG_GeometryType.NONE)
{
this.Type = feature.GetGeometry().Type;
this.FeatureSet.Add(feature);
}
else if (this.Type == feature.GetGeometry().Type)
{
this.FeatureSet.Add(feature);
}
}
// feature
public void AddFeature(MG_Feature feature)
{
if (this.Type == MG_GeometryType.NONE)
{
this.Type = feature.GetGeometry().Type;
this.FeatureSet.Add(feature);
}
else if (this.Type == feature.GetGeometry().Type)
{
this.FeatureSet.Add(feature);
}
}
public MG_BaseTool(MG_ToolType type, MG_Layer layer, MG_MapView mapview)
{
this.ToolType = type;
this.Layer = layer;
this.MapView = mapview;
if (layer!=null)
{// pan tool: layer==null
this.Feature = new MG_Feature(this.Layer.GetFieldSet());
}
// empty point
this.FromPoint = Point.Empty;
this.ToPoint = Point.Empty;
this.Point3 = Point.Empty;
this.SelectRect = Rectangle.Empty;
}
public MG_Feature(MG_Feature f)
{
this.FieldSet = new MG_FieldSet();
this.ValueSet = new MG_ValueSet();
this.Geometry = new MG_Geometry();
this.Symbol = new MG_Symbol();
for (int i = 0; i < f.GetFieldCount();i++ )
{
MG_Field field = f.GetFieldSet().GetAt(i);
MG_Field newField = new MG_Field(field);
this.FieldSet.Add(newField);
MG_Value value = f.GetValue(i);
MG_Value newValue = new MG_Value(value);
this.ValueSet.Add(newValue);
}
MG_Geometry g = f.GetGeometry();
MG_Geometry newGeom = new MG_Geometry();
switch (g.Type)
{
case MG_GeometryType.NONE:
break;
case MG_GeometryType.POINT:
newGeom = new MG_Point(g as MG_Point);
break;
case MG_GeometryType.MULTIPOINT:
newGeom = new MG_MultiPoint(g as MG_MultiPoint);
break;
case MG_GeometryType.LINESTRING:
newGeom = new MG_LineString(g as MG_LineString);
break;
case MG_GeometryType.MULTILINESTRING:
newGeom = new MG_MultiLineString(g as MG_MultiLineString);
break;
case MG_GeometryType.POLYGON:
newGeom = new MG_Polygon(g as MG_Polygon);
break;
case MG_GeometryType.MULTIPOLYGON:
newGeom = new MG_MultiPolygon(g as MG_MultiPolygon);
break;
}
this.Geometry = newGeom;
MG_Symbol newSymbol = new MG_Symbol(f.GetSymbol());
this.Symbol = newSymbol;
}
public override void MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
this.IsMouseDown = false;
Panel panel = (Panel)sender;
if (this.Step == 0)
{
}
else if (this.Step == 1)
{
// add last point
this.ToPoint = new Point(e.X, e.Y);
MG_Point mapPoint = MG_BaseRender.ToPoint(this.ToPoint, this.MapView);
this.LineString.Add(mapPoint);
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(this.LineString);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count(); i++)
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature);
//4 clear data to store the next linestring
this.LineString.Clear();
// 5 reset control params
this.Step = 0;
this.FromPoint = Point.Empty;
this.ToPoint = Point.Empty;
}
}
}
public override void MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
Panel panel = (Panel)sender;
this.FromPoint = new Point(e.X, e.Y);
// draw point
MG_BaseDisplay.FillPoint(panel.CreateGraphics(), brush, this.FromPoint,MG_Constant.PointRadius);
// screen to map
this.MapPoint = MG_BaseRender.ToPoint(this.FromPoint, this.MapView);
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(this.MapPoint);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count();i++ )
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature);
//4 clear data to store the next point
this.MapPoint.Clear();
}
}
public void Add(MG_Feature field)
{
this.FeatureSet.Add(field);
}
public void Add(MG_Feature field)
{
this.FeatureSet.Add(field);
}
public override void MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
this.IsMouseDown = false;
// screen point to map point
MG_LineString MapLineString = new MG_LineString();
for (int i = 0; i < this.LineString.Count();i++ )
{
MG_Point screenPoint = this.LineString.GetAt(i);
Point screen = new Point((int)screenPoint.x, (int)screenPoint.y);
MG_Point mapPoint = MG_BaseRender.ToPoint(screen, this.MapView);
MapLineString.Add(mapPoint);
}
MG_LineString MapLineStringOther = new MG_LineString();
for (int i = 0; i < this.LineStringOther.Count(); i++)
{
MG_Point screenPoint = this.LineStringOther.GetAt(i);
Point screen = new Point((int)screenPoint.x, (int)screenPoint.y);
MG_Point mapPoint = MG_BaseRender.ToPoint(screen, this.MapView);
MapLineStringOther.Add(mapPoint);
}
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(MapLineString);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count(); i++)
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature1 = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature1);
//4 clear data to store the next linestring
this.LineString.Clear();
//1 create a feature
// 1.1 set geometry
this.Feature.SetGeometry(MapLineStringOther);
// 1.2 set field value
for (int i = 0; i < this.Feature.GetFieldSet().Count(); i++)
{
this.Feature.SetValue(i, null);
}
//2 create a new feature
MG_Feature newFeature2 = new MG_Feature(this.Feature);
//3 add new feature to layer
this.Layer.AddFeature(newFeature2);
//4 clear data to store the next linestring
this.LineStringOther.Clear();
}
}
protected MG_FeatureSet GetFeatureSet(MG_FieldSet fieldSet,string table)
{
NpgsqlDataReader reader = this.SelectAll(table);
if (reader == null || !reader.HasRows)
return null;
MG_FeatureSet featureSet = new MG_FeatureSet();
int fc = reader.FieldCount; // 4
while (reader.Read())
{// oid f1,f2,f3... geom
MG_Feature f = new MG_Feature(fieldSet);
MG_ValueSet valueSet = new MG_ValueSet();
string oid = reader["oid"].ToString();
string geom = reader["geomtext"].ToString();
for (int i = 1; i < fc-1; i++)
{
string str = reader[i].ToString();
MG_Value value = new MG_Value(i - 1, str);
valueSet.Add(value);
}
f.ValueSet = valueSet;
f.Geometry = MG_ShapeFileOper.AsGeometry(geom);
featureSet.Add(f);
}
reader.Close();
reader.Dispose();
return featureSet;
}
