private IPolygon CreateSelectionPolygon(Coordinate worldPosition)
{
if (MultiSelectionMode == MultiSelectionMode.Rectangle)
{
if (0 == Math.Abs(mouseDownLocation.X - worldPosition.X))
{
return(null);
}
if (0 == Math.Abs(mouseDownLocation.Y - worldPosition.Y))
{
return(null);
}
return(CreatePolygon(Math.Min(mouseDownLocation.X, worldPosition.X),
Math.Max(mouseDownLocation.Y, worldPosition.Y),
Math.Max(mouseDownLocation.X, worldPosition.X),
Math.Min(mouseDownLocation.Y, worldPosition.Y)));
}
var vertices = selectPoints.Select(point => Map.ImageToWorld(point)).ToList();
if (vertices.Count == 1)
{
// too few points to create a polygon
return(null);
}
vertices.Add((Coordinate)worldPosition.Clone());
vertices.Add((Coordinate)vertices[0].Clone());
ILinearRing newLinearRing = GeometryFactory.CreateLinearRing(vertices.ToArray());
return(GeometryFactory.CreatePolygon(newLinearRing, null));
}
private void InitializeShape(string filename, bool FileBasedIndex)
{
if (!File.Exists(filename))
{
throw new FileNotFoundException(String.Format("Could not find file \"{0}\"", filename));
}
if (!filename.ToLower().EndsWith(".shp"))
{
throw (new Exception("Invalid shapefile filename: " + filename));
}
recordHeaders = LoadIndexfile(GetIndexFilePath());
//Read the spatial bounding box of the contents
brShapeIndex.BaseStream.Seek(36, 0); //seek to box
double x1, x2, y1, y2;
x1 = brShapeIndex.ReadDouble();
y1 = brShapeIndex.ReadDouble();
x2 = brShapeIndex.ReadDouble();
y2 = brShapeIndex.ReadDouble();
_Envelope = GeometryFactory.CreateEnvelope(x1, x2, y1, y2);
}
public static ICoordinate ImageToWorld(Map map, double width, double height)
{
ICoordinate c1 = map.ImageToWorld(new PointF(0, 0));
ICoordinate c2 = map.ImageToWorld(new PointF((float)width, (float)height));
return(GeometryFactory.CreateCoordinate(Math.Abs(c1.X - c2.X), Math.Abs(c1.Y - c2.Y)));
}
/// <summary>
/// Reads a node from a stream recursively
/// </summary>
/// <param name="depth">Current depth</param>
/// <param name="br">Binary reader reference</param>
/// <returns></returns>
private static QuadTreeOld ReadNode(uint depth, ref System.IO.BinaryReader br)
{
QuadTreeOld node = new QuadTreeOld();
node._Depth = depth;
node.Box = GeometryFactory.CreateEnvelope(br.ReadDouble(), br.ReadDouble(), br.ReadDouble(), br.ReadDouble());
bool IsLeaf = br.ReadBoolean();
if (IsLeaf)
{
int FeatureCount = br.ReadInt32();
node._objList = new List <BoxObjects>();
for (int i = 0; i < FeatureCount; i++)
{
BoxObjects box = new BoxObjects();
box.box = GeometryFactory.CreateEnvelope(br.ReadDouble(), br.ReadDouble(), br.ReadDouble(), br.ReadDouble());
box.ID = (uint)br.ReadInt32();
node._objList.Add(box);
}
}
else
{
node.Child0 = ReadNode(node._Depth + 1, ref br);
node.Child1 = ReadNode(node._Depth + 1, ref br);
}
return(node);
}
protected IEnumerable <TrackerFeature> CreateTrackersForGeometry(IGeometry geometry)
{
var coordinates = geometry.Coordinates;
if (coordinates.Length == 0)
{
yield break;
}
yield return(new TrackerFeature(this, GeometryFactory.CreatePoint(coordinates[0].X, coordinates[0].Y), 0,
trackerSmallStart));
for (var i = 1; i < coordinates.Length - 1; i++)
{
yield return
(new TrackerFeature(this, GeometryFactory.CreatePoint(coordinates[i].X, coordinates[i].Y), i,
trackerSmall));
}
if (coordinates.Length > 1)
{
yield return
(new TrackerFeature(this, GeometryFactory.CreatePoint(coordinates.Last().X, coordinates.Last().Y),
coordinates.Length - 1, trackerSmallEnd));
}
}
/// <summary>
/// Find the nearest feature to worldPos out of a collection of candidates. If there is no geometry
/// with a distance less than limit null is returned.
/// </summary>
/// <param name="candidates"></param>
/// <param name="worldPos"></param>
/// <param name="limit"></param>
/// <param name="distance"></param>
/// <returns></returns>
private static IFeature FindNearestFeature(VectorLayer vectorLayer, IEnumerable candidates, ICoordinate worldPos,
float limit, out double distance)
{
IPoint point = GeometryFactory.CreatePoint(worldPos.X, worldPos.Y);
IFeature current = null;
distance = double.MaxValue;
foreach (IFeature feature in candidates)
{
IGeometry geometry;
if (vectorLayer.CustomRenderers.Count > 0)
{
geometry = vectorLayer.CustomRenderers[0].GetRenderedFeatureGeometry(feature, vectorLayer);
}
else
{
if (vectorLayer.CoordinateTransformation != null)
{
geometry = GeometryTransform.TransformGeometry(feature.Geometry, vectorLayer.CoordinateTransformation.MathTransform);
}
else
{
geometry = feature.Geometry;
}
}
double localDistance = geometry.Distance(point);
if ((localDistance < distance) && (localDistance < limit))
{
current = feature;
distance = localDistance;
}
}
return(current);
}
public void ZoomToBox_WithAspectCorrection()
{
var map = new Map(new Size(400, 200));
map.ZoomToFit(GeometryFactory.CreateEnvelope(10, 20, 100, 180));
Assert.AreEqual(GeometryFactory.CreateCoordinate(15, 140), map.Center);
Assert.AreEqual(160d, map.Zoom);
}
public void ZoomToBox_NoAspectCorrection()
{
var map = new Map(new Size(400, 200));
map.ZoomToFit(GeometryFactory.CreateEnvelope(20, 50, 100, 80));
Assert.AreEqual(GeometryFactory.CreateCoordinate(35, 90), map.Center);
Assert.AreEqual(40d, map.Zoom);
}
/// <summary>
/// Returns the next feature at worldPos.
/// </summary>
/// <param name="worldPos"></param>
/// <param name="limit"></param>
/// <param name="outLayer"></param>
/// the layer containing the next feature; null if no next feature is found.
/// <param name="feature"></param>
/// <param name="condition"></param>
/// <returns>the next feature at worldPos, null if there is no next feature.</returns>
public IFeature GetNextFeatureAtPosition(ICoordinate worldPos, float limit, out Layer outLayer, IFeature feature,
Func <ILayer, bool> condition)
{
IEnvelope envelope = GetEnvelope(worldPos, limit);
IFeature nextFeature = null;
bool featureFound = false;
outLayer = null;
foreach (ILayer mapLayer in Map.GetAllVisibleLayers(false))
{
var vectorLayer = mapLayer as VectorLayer;
IPoint point = GeometryFactory.CreatePoint(worldPos);
if (vectorLayer == null || !vectorLayer.IsSelectable)
{
continue;
}
if ((null != condition) && (!condition(vectorLayer)))
{
continue;
}
if (vectorLayer.DataSource != null)
{
var objectsAt = vectorLayer.GetFeatures(envelope);
foreach (IFeature featureAt in objectsAt)
{
// GetFeatures(envelope) uses the geometry bounds; this results in more
// geometries than we actually are interested in (especially linestrings and polygons).
double distance = featureAt.Geometry.Distance(point);
if (distance >= limit)
{
continue;
}
if (featureFound)
{
nextFeature = featureAt;
outLayer = vectorLayer;
return(nextFeature);
}
if (featureAt == feature)
{
featureFound = true;
continue;
}
if (null != nextFeature)
{
continue;
}
// If feature is last in collections objectsAt nextfeature is first
nextFeature = featureAt;
outLayer = vectorLayer;
}
}
}
return(nextFeature);
}
public static IEnvelope GetEnvelope(ICoordinate worldPos, double width, double height)
{
// maak een rectangle in wereldcoordinaten ter grootte van 20 pixels rondom de click
IPoint p = GeometryFactory.CreatePoint(worldPos.X, worldPos.Y);
IEnvelope Envelope = (IEnvelope)p.EnvelopeInternal.Clone();
Envelope.SetCentre(p, width, height);
return(Envelope);
}
public static IEnvelope GetEnvelope(ICoordinate worldPos, float radius)
{
// maak een rectangle in wereldcoordinaten ter grootte van 20 pixels rondom de click
IPoint p = GeometryFactory.CreatePoint(worldPos);
IEnvelope Envelope = (IEnvelope)p.EnvelopeInternal.Clone();
Envelope.SetCentre(p, radius, radius);
return(Envelope);
}
public void WorldToMap_DefaultMap_ReturnValue()
{
Map map = new Map(new System.Drawing.Size(500, 200));
map.Center = GeometryFactory.CreateCoordinate(23, 34);
map.Zoom = 1000;
System.Drawing.PointF p = map.WorldToImage(GeometryFactory.CreateCoordinate(8, 50));
Assert.AreEqual(new System.Drawing.PointF(242.5f, 92), p);
}
public void ImageToWorld_DefaultMap_ReturnValue()
{
var map = new Map(new Size(500, 200))
{
Center = GeometryFactory.CreateCoordinate(23, 34), Zoom = 1000
};
ICoordinate p = map.ImageToWorld(new PointF(242.5f, 92));
Assert.AreEqual(GeometryFactory.CreateCoordinate(8, 50), p);
}
public void GetExtents_ValidDatasource()
{
var map = new Map(new Size(400, 200));
var vLayer = new VectorLayer("Geom layer", CreateTestFeatureProvider());
map.Layers.Add(vLayer);
IEnvelope box = map.GetExtents();
Assert.AreEqual(GeometryFactory.CreateEnvelope(0, 50, 0, 346.3493254), box);
}
public void ZoomToBoxWithMarginDoesAddMargin()
{
Map map = new Map(new Size(400, 200));
IEnvelope envelope = GeometryFactory.CreateEnvelope(20, 50, 100, 80);
//action! zoom to box with margin
map.ZoomToFit(envelope, true);
//see the heigth has a 10% extra!
Assert.AreEqual(22, map.Envelope.Height);
}
public void ZoomToBoxSetsMapHeight()
{
var map = new Map(new Size(400, 200));
IEnvelope envelope = GeometryFactory.CreateEnvelope(20, 50, 100, 80);
//action! zoom to box with margin
map.ZoomToFit(envelope, false);
//see the heigth has a 10% extra!
Assert.AreEqual(20, map.Envelope.Height);
}
public void ZoomToBoxWithMarginDoesNotMessUpGivenEnvelope()
{
var map = new Map(new Size(400, 200));
IEnvelope envelope = GeometryFactory.CreateEnvelope(20, 50, 100, 80);
//action! zoom to box with margin
map.ZoomToFit(envelope, true);
Assert.AreEqual(20, envelope.MinX);
Assert.AreEqual(50, envelope.MaxX);
Assert.AreEqual(80, envelope.MinY);
Assert.AreEqual(100, envelope.MaxY);
}
public void WorldToImage()
{
Map map = new Map(new Size(1000, 500));
map.Zoom = 360;
map.Center = GeometryFactory.CreateCoordinate(0, 0);
Assert.AreEqual(new PointF(500, 250), map.WorldToImage(GeometryFactory.CreateCoordinate(0, 0)));
Assert.AreEqual(new PointF(0, 0), map.WorldToImage(GeometryFactory.CreateCoordinate(-180, 90)));
Assert.AreEqual(new PointF(0, 500), map.WorldToImage(GeometryFactory.CreateCoordinate(-180, -90)));
Assert.AreEqual(new PointF(1000, 0), map.WorldToImage(GeometryFactory.CreateCoordinate(180, 90)));
Assert.AreEqual(new PointF(1000, 500), map.WorldToImage(GeometryFactory.CreateCoordinate(180, -90)));
}
private void CreateNewLine()
{
if (newArrowLineLayer == null)
{
return;
}
newArrowLineGeometry = GeometryFactory.CreateLineString(new[] { startCoordinate, endCoordinate });
((DataTableFeatureProvider)newArrowLineLayer.DataSource).Clear();
newArrowLineLayer.DataSource.Add(newArrowLineGeometry);
}
private IPolygon CreatePolygon(double left, double top, double right, double bottom)
{
var vertices = new List <Coordinate>
{
GeometryFactoryEx.CreateCoordinate(left, bottom),
GeometryFactoryEx.CreateCoordinate(right, bottom),
GeometryFactoryEx.CreateCoordinate(right, top),
GeometryFactoryEx.CreateCoordinate(left, top)
};
vertices.Add((Coordinate)vertices[0].Clone());
ILinearRing newLinearRing = GeometryFactory.CreateLinearRing(vertices.ToArray());
return(GeometryFactory.CreatePolygon(newLinearRing, null));
}
public override TrackerFeature GetTrackerAtCoordinate(Coordinate worldPos)
{
var trackerFeature = base.GetTrackerAtCoordinate(worldPos);
if (trackerFeature == null)
{
var org = Layer.Map.ImageToWorld(new PointF(0, 0));
var range = Layer.Map.ImageToWorld(new PointF(6, 6)); // todo make attribute
if (SourceFeature.Geometry.Distance(GeometryFactory.CreatePoint(worldPos)) < Math.Abs(range.X - org.X))
{
return(AllTracker);
}
}
return(trackerFeature);
}
public override void OnDraw(Graphics graphics)
{
if (MultiSelectionMode == MultiSelectionMode.Lasso)
{
GraphicsHelper.DrawSelectionLasso(graphics, KeyExtendSelection ? Color.Magenta : Color.DeepSkyBlue, selectPoints.ToArray());
}
else
{
ICoordinate coordinate1 = GeometryFactory.CreateCoordinate(mouseDownLocation.X, mouseDownLocation.Y);
ICoordinate coordinate2 = GeometryFactory.CreateCoordinate(WORLDPOSITION.X, WORLDPOSITION.Y);
PointF point1 = Map.WorldToImage(coordinate1);
PointF point2 = Map.WorldToImage(coordinate2);
GraphicsHelper.DrawSelectionRectangle(graphics, KeyExtendSelection ? Color.Magenta : Color.DeepSkyBlue, point1, point2);
}
}
private void StartNewLine(ICoordinate worldPos)
{
List <ICoordinate> verticies = new List <ICoordinate>
{
GeometryFactory.CreateCoordinate(worldPos.X, worldPos.Y),
GeometryFactory.CreateCoordinate(worldPos.X, worldPos.Y)
};
ILineString lineString = GeometryFactory.CreateLineString(verticies.ToArray());
((DataTableFeatureProvider)newLineLayer.DataSource).Clear();
newLineLayer.DataSource.Add(lineString);
adding = true;
ActualAutoCurve = AutoCurve;
ActualMinDistance = MinDistance;
}
public override void OnMouseMove(ICoordinate worldPosition, MouseEventArgs e)
{
if (startCoordinate == null)
{
return;
}
if (!((MouseButtons.None == e.Button) || (MouseButtons.Left == e.Button)))
{
return;
}
EndCoordinate = GeometryFactory.CreateCoordinate(worldPosition.X, worldPosition.Y);
ShowSnap(newArrowLineGeometry, worldPosition);
DoDrawing(true);
}
public void Initalize_MapInstance()
{
var map = new Map(new Size(2, 1));
Assert.IsNotNull(map);
Assert.IsNotNull(map.Layers);
Assert.AreEqual(2f, map.Size.Width);
Assert.AreEqual(1f, map.Size.Height);
Assert.AreEqual(Color.Transparent, map.BackColor);
Assert.AreEqual(1e9, map.MaximumZoom);
Assert.AreEqual(1e-4, map.MinimumZoom);
Assert.AreEqual(GeometryFactory.CreateCoordinate(0, 0), map.Center,
"map.Center should be initialized to (0,0)");
Assert.AreEqual(1000, map.Zoom, "Map zoom should be initialized to 1000.0");
}
public void ImageToWorld()
{
Map map = new Map(new System.Drawing.Size(1000, 500));
map.Zoom = 360;
map.Center = GeometryFactory.CreateCoordinate(0, 0);
Assert.AreEqual(GeometryFactory.CreateCoordinate(0, 0),
map.ImageToWorld(new System.Drawing.PointF(500, 250)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(-180, 90),
map.ImageToWorld(new System.Drawing.PointF(0, 0)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(-180, -90),
map.ImageToWorld(new System.Drawing.PointF(0, 500)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(180, 90),
map.ImageToWorld(new System.Drawing.PointF(1000, 0)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(180, -90),
map.ImageToWorld(new System.Drawing.PointF(1000, 500)));
}
public void ImageToWorld()
{
Map map = new Map(new Size(1000, 500))
{
Zoom = 360, Center = GeometryFactory.CreateCoordinate(0, 0)
};
Assert.AreEqual(GeometryFactory.CreateCoordinate(0, 0),
map.ImageToWorld(new PointF(500, 250)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(-180, 90),
map.ImageToWorld(new PointF(0, 0)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(-180, -90),
map.ImageToWorld(new PointF(0, 500)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(180, 90),
map.ImageToWorld(new PointF(1000, 0)));
Assert.AreEqual(GeometryFactory.CreateCoordinate(180, -90),
map.ImageToWorld(new PointF(1000, 500)));
}
private static ILineString RemoveCurvePoint(ILineString lineString, int removeNumber, ICoordinate addCoordinate)
{
List <ICoordinate> vertices = new List <ICoordinate>();
for (int i = 0; (i >= 0) && (i < lineString.Coordinates.Length - removeNumber); i++)
{
vertices.Add(lineString.Coordinates[i]);
}
if (null != addCoordinate)
{
vertices.Add(addCoordinate);
}
if (vertices.Count > 1)
{
return(GeometryFactory.CreateLineString(vertices.ToArray()));
}
return(null);
}
/// <summary>
/// Initializes a new map
/// </summary>
/// <param name="size">Size of map in pixels</param>
public Map(Size size)
{
name = "map";
maximumZoom = double.MaxValue;
minimumZoom = 0;
center = GeometryFactory.CreateCoordinate(0, 0);
zoom = 1000;
pixelAspectRatio = 1.0;
Size = size;
Layers = new EventedList <ILayer>();
BackColor = Color.Transparent;
mapTransform = new Matrix();
mapTransformInverted = new Matrix();
UpdateDimensions();
}
public void AddingALayerShouldCauseZoomToExtendsIfNoValidExtendsBefore()
{
var map = new Map(new Size(10, 100))
{
Center = GeometryFactory.CreateCoordinate(90, 900)
};
//now add a layer with defined extends
var geometry = GeometryFromWKT.Parse("LINESTRING (20 20, 20 30, 30 30, 30 20, 40 20)");
var dataSource = new DataTableFeatureProvider(geometry);
var vectorLayerWithExtends = new VectorLayer("Layer with extends")
{
DataSource = dataSource
};
map.Layers.Add(vectorLayerWithExtends);
Assert.AreEqual(new Envelope(19, 41, -85, 135), map.Envelope);
}