protected override void OnMouseDown(GeoMouseArgs e)
{
if (e.Button == MouseButtons.Left)
{
_isEnabled = false;
_currentPoint = e.Location;
int x = _currentPoint.X;
int y = _currentPoint.Y;
System.Drawing.Point point = new System.Drawing.Point(x, y);
_points = point;
_coordinatePoints = this._map.PixelToProj(new System.Drawing.Point(_points.X, _points.Y));
IMapPointLayer pointLayer = GetPointLayer();
_point = new NetTopologySuite.Geometries.Point(_coordinatePoints);
pointLayer.DataSet.AddFeature(_point as IGeometry);
_map.Refresh();
_isEnabled = true;
}
else if (e.Button == MouseButtons.Right)
{
this.Enabled = false;
string bufferType = "PointBuffer";
Buffer pointBuffer = new Buffer(bufferType);
pointBuffer.ShowDialog();
_map.FunctionMode = FunctionMode.Pan;
}
base.OnMouseDown(e);
}
private void CategorizeCitiesByAlgorithm(IMapPointLayer alayer)
{
/*
* There are a large number of settings that can be controlled directly using the PointScheme.
* In this illustration the classification type is quantities, but this can also be
* UniqueValues or custom.
* The categories can always be edited programmatically after they are created, but this
* simply controls what will happen when the CreateCategories method is ultimately called.
* The interval snap methods include none, rounding, significant figures, and snapping to the
* nearest value. These can help the appearance of the categories in the legend,
* but it can also cause trouble. With Significant figures, the IntervalRoundingDigits controls the
* number of significant figures instead.
* One property is deceptive in its power.
* The TemplateSymbolizer property allows you to control the basic appearance of the categories for
* any property that is not being controlled by either the size or color ramping.
* For example, if we wanted to add black borders to the stars above, we would simply add that
* to the template symbolizer. In this case we chose to make them appear as stars and controlled
* them to have equal sizes since UseSizeRange defaults to false, but UseColorRange defaults to true.
*/
PointScheme lScheme = new PointScheme();
lScheme.Categories.Clear();
lScheme.EditorSettings.ClassificationType = ClassificationType.Quantities;
lScheme.EditorSettings.IntervalMethod = IntervalMethod.EqualInterval;
lScheme.EditorSettings.IntervalSnapMethod = IntervalSnapMethod.Rounding;
lScheme.EditorSettings.IntervalRoundingDigits = 5;
lScheme.EditorSettings.TemplateSymbolizer = new PointSymbolizer(Color.Yellow, DotSpatial.Symbology.PointShape.Star, 16);
lScheme.EditorSettings.FieldName = "Area";
lScheme.CreateCategories(alayer.DataSet.DataTable);
alayer.Symbology = lScheme;
}
public SnapPourPoint(IMapPointLayer InputPoint, IRaster InputAccumulation, IRaster InputSurface, double InputRadius, string InputSave, IRaster InputResult, IRaster InputLabel, IMap InputMap)
{
pointLayer = InputPoint;
Accumulation = InputAccumulation;
Surface = InputSurface;
Radius = InputRadius;
savePath = InputSave;
Result = InputResult;
Label = InputLabel;
MainMap = InputMap;
}
/// <summary>
/// Populate the variables available from the selected site
/// layer, the polygon layer, and the selected polygons in
/// the map within this layer.
/// </summary>
private void populateVariables()
{
polygonData.Clear();
foreach (IFeature polygon in polygons.Features)
{
PolygonData data = new PolygonData();
data.polygon = polygon;
IMapPointLayer pointLayer = ((KeyValuePair <IMapPointLayer, string>)SiteList.SelectedItem).Key;
var features = pointLayer.DataSet.Features;
foreach (IFeature point in features)
{
if (point.Intersects(polygon))
{
SiteData siteData = new SiteData();
siteData.site = point;
foreach (var fld in point.ParentFeatureSet.GetColumns())
{
var getColumnValue = (Func <string, string>)(column => (point.DataRow[column].ToString()));
var strValue = getColumnValue(fld.ColumnName);
switch (fld.ColumnName)
{
case "SiteCode":
siteData.siteCode = strValue;
break;
case "VarCode":
siteData.variableCode = strValue;
break;
case "VarName":
siteData.variableName = strValue;
break;
}
}
data.sites.Add(siteData);
variables.Add(siteData.variableName);
}
}
polygonData.Add(data);
}
if (variables.Count > 0)
{
VariableList.DataSource = new BindingSource(variables, null);
}
}
private void comboBox1_SelectedValueChanged(object sender, EventArgs e)
{
string cv = comboBox1.Text;
IMapPointLayer pointlayer = null;
List <string> column = new List <string>();
if (flag == true)
{
pointlayer = file_layer[cv];
}
if (pointlayer == null)
{
foreach (IMapPointLayer l in ipl)
{
if (l.LegendText == cv)
{
pointlayer = l;
}
}
}
if (pointlayer != null)
{
/*FeatureSet fs = new FeatureSet(FeatureType.Point);
* fs = layer as FeatureSet;
* for(int i = 0; i < fs.DataTable.Columns.Count; i++)
* {
* column.Add(fs.DataTable.Columns[i].ColumnName.ToString());
* }*///为空，错误
IFeatureLayer fl = pointlayer as IFeatureLayer;
//fl.ShowAttributes();
//column = fl.DataSet.GetColumnNames;
//IFeatureSet featureSet = new FeatureSet();
ifeatureset = pointlayer.DataSet;
DataTable dt = pointlayer.DataSet.DataTable;
for (int i = 0; i < dt.Columns.Count; i++)
{
column.Add(dt.Columns[i].ColumnName.ToString());
}
}
//Console.WriteLine("column_count:"+column.Count);
//comboBox2.Items.Add("xxxx");
foreach (string s in column)
{
comboBox2.Items.Add(s);
}
//comboBox2.Items.Add("adasdad");
if (comboBox2.Items.Count > 0)
{
comboBox2.SelectedIndex = 0;
}
}
//Convert point to pixel
private RcIndex Point_to_Raster(IMapPointLayer point, IRaster ExecuteRaster)
{
IFeatureSet featureSet = point.DataSet;
if (featureSet.Features.Count > 1 || featureSet.Features.Count <= 0)
{
//只能有一个点，不能没有点
MessageBox.Show("The point is invalid!", "Admin", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(new RcIndex(-9999, -9999));
}
Coordinate coor = featureSet.Features[0].Geometry.Coordinates[0]; //获取点要素的坐标
RcIndex rc = ExecuteRaster.Bounds.ProjToCell(coor); //获取点要素对应的栅格坐标
return(rc);
}
private void pointBuffer()
{
foreach (ILayer item in _map.MapFrame.DrawingLayers)
{
if (item.LegendText == "Point")
{
IMapPointLayer pointLayer = item as IMapPointLayer;
ILayer layer = bufferLayer();
for (int i = 0; i < pointLayer.DataSet.Features.Count; i++)
{
(layer as IMapPolygonLayer).DataSet.AddFeature(pointLayer.DataSet.Features[i].Geometry.Buffer(_distance));
}
_map.Refresh();
break;
}
}
}
private void MakeComplexSymbol(IMapPointLayer alayer)
{ //Objective: Yellow stars in a Blue Circle
/*
* Complex symbols can be created, simply by adding symbols to the Symbolizer.Symbols list.
* There are three basic kinds of symbols, Simple, Character and Image based.
* These have some common characteristics, like the Angle, Offset and Size,
* which are stored on the base class.
* In the derived classes, the characteristics that are specific to the sub‐class control
* those aspects of symbology.
* For creating new symbols, the Subclass can be used.
* For working with individual symbols in the collection, you may need to test what type of
* symbol you are working with before you will be able to control its properties.
*/
PointSymbolizer lPS = new PointSymbolizer(Color.Blue, DotSpatial.Symbology.PointShape.Ellipse, 16);
lPS.Symbols.Add(new SimpleSymbol(Color.Yellow, DotSpatial.Symbology.PointShape.Star, 10));
alayer.Symbolizer = lPS;
}
private void CategorizeCities(IMapPointLayer alayer)
{
PointScheme lScheme = new PointScheme();
lScheme.Categories.Clear();
PointCategory smallSize = new PointCategory(Color.Blue, DotSpatial.Symbology.PointShape.Rectangle, 4);
smallSize.FilterExpression = "[Area] < 1e+08";
smallSize.LegendText = "Small Cities";
lScheme.AddCategory(smallSize);
PointCategory largeSize = new PointCategory(Color.Yellow, DotSpatial.Symbology.PointShape.Star, 16);
largeSize.FilterExpression = "[Area] >= 1e+08";
largeSize.LegendText = "Large Cities";
lScheme.AddCategory(largeSize);
alayer.Symbology = lScheme;
}
//public bool PointCanIn
//{
// get;
// set;
//}
#endregion
#region Method
protected IMapPointLayer GetPointLayer()
{
IMapPointLayer pointLayer = null;
foreach (ILayer item in this._map.MapFrame.DrawingLayers)
{
if (item.LegendText == "Point")
{
pointLayer = item as IMapPointLayer;
break;
}
}
if (pointLayer == null)
{
pointLayer = new MapPointLayer();
pointLayer.LegendText = "Point";
pointLayer.Symbolizer = GIS.FrameWork.ROIConfigure.pointSymbolizer;
this._map.MapFrame.DrawingLayers.Add(pointLayer);
}
return(pointLayer);
}
private void comboBox1_SelectedValueChanged(object sender, EventArgs e)
{
string cv = comboBox1.Text;
IMapPointLayer pointlayer = null;
//List<string> column = new List<string>();
if (flag == true)
{
pointlayer = file_layer[cv];
}
if (pointlayer == null)
{
foreach (IMapPointLayer l in ipl)
{
if (l.LegendText == cv)
{
pointlayer = l;
}
}
}
if (pointlayer != null && flag == false)
{
ifeatureset = pointlayer.DataSet;
/*IFeatureLayer fl = pointlayer as IFeatureLayer;
* //fl.ShowAttributes();
* //column = fl.DataSet.GetColumnNames;
* //IFeatureSet featureSet = new FeatureSet();
* ifeatureset = pointlayer.DataSet;
* DataTable dt = pointlayer.DataSet.DataTable;
* for (int i = 0; i < dt.Columns.Count; i++)
* {
* column.Add(dt.Columns[i].ColumnName.ToString());
* }*/
comboBox6.Items.Add("已选定。");
comboBox5.Items.Add("已选定。");
comboBox6.SelectedIndex = 0;
comboBox5.SelectedIndex = 0;
}
}
