private void RenderRoadInformation(ShapeFileFeatureLayer featureLayer, RouteSegment road)
{
InMemoryFeatureLayer currentRoadLayer = ((LayerOverlay)winformsMap1.Overlays["currentRoadOverlay"]).Layers["currentRoadLayer"] as InMemoryFeatureLayer;
string featureId = road.FeatureId;
Feature currentRoadFeature = featureLayer.FeatureSource.GetFeatureById(featureId, ReturningColumnsType.AllColumns);
currentRoadLayer.InternalFeatures.Clear();
currentRoadLayer.InternalFeatures.Add(currentRoadFeature);
txtStartPoint.Text = String.Format("{0}, {1}", road.StartPoint.X.ToString("F4", CultureInfo.InvariantCulture), road.StartPoint.Y.ToString("F4", CultureInfo.InvariantCulture));
txtEndPoint.Text = String.Format("{0}, {1}", road.EndPoint.X.ToString("F4", CultureInfo.InvariantCulture), road.EndPoint.Y.ToString("F4", CultureInfo.InvariantCulture));
LineShape line = ((MultilineShape)currentRoadFeature.GetShape()).Lines[0];
txtLength.Text = Math.Round(line.GetLength(GeographyUnit.DecimalDegree, DistanceUnit.Meter), 4).ToString(CultureInfo.InvariantCulture);
switch (road.RouteSegmentType)
{
case 0:
txtRoadType.Text = "Local Road";
break;
case 1:
txtRoadType.Text = "Major Road";
break;
case 2:
txtRoadType.Text = "High Way";
break;
default:
break;
}
}
private LineShape GetTangentForLinePosition(LineShape lineShape, double stationKM)
{
const double OFFSET_KM = 0.000000001;
PointShape tangentPointShape1, tangentPointShape2;
double offsetTangentStart = OFFSET_KM;
double offsetTangentEnd = OFFSET_KM;
LineShape tangentLineShape;
if (stationKM == 0.0)
{
offsetTangentStart = 0.0;
}
if (stationKM == lineShape.GetLength(GeographyUnit.Meter, DistanceUnit.Kilometer))
{
offsetTangentEnd = 0.0;
}
tangentPointShape1 = lineShape.GetPointOnALine(StartingPoint.FirstPoint, stationKM - offsetTangentStart,
GeographyUnit.Meter, DistanceUnit.Kilometer);
tangentPointShape2 = lineShape.GetPointOnALine(StartingPoint.FirstPoint, stationKM + offsetTangentEnd,
GeographyUnit.Meter, DistanceUnit.Kilometer);
tangentLineShape = new LineShape(new Vertex[] { new Vertex(tangentPointShape1), new Vertex(tangentPointShape2) });
return(tangentLineShape);
}
private void MeasureRadius()
{
if (TrackMode == TrackMode.Circle)
{
if (TrackShapeLayer.InternalFeatures.Count > 0 && radiusLine != null)
{
double radius = radiusLine.GetLength(MapUnit, DistanceUnit);
textBlock.Text = string.Format(CultureInfo.InvariantCulture, "{0:N3} {1}", radius, GetAbbreviateDistanceUnit(DistanceUnit));
}
}
}
private void DrawMeasureResult(GeoCanvas canvas)
{
if (TrackMode == TrackMode.Circle && isTracking)
{
if (TrackShapeLayer.InternalFeatures.Count > 0 && radiusLine != null)
{
double r = radiusLine.GetLength(mapUnit, distanceUnit);
radiusValueString = string.Format(CultureInfo.InvariantCulture, "{0:N3} {1}", r, GetAbbreviateDistanceUnit(distanceUnit));
canvas.DrawTextWithScreenCoordinate(radiusValueString, new GeoFont(),
new GeoSolidBrush(GeoColor.SimpleColors.Black), mouseScreenPointF.X,
mouseScreenPointF.Y, DrawingLevel.LabelLevel);
}
}
}
private LineShape GetLineOnALine(LineShape line, Vertex vertex1, Vertex vertex2, GeographyUnit unit)
{
LineShape result1 = new LineShape();
LineShape result2 = new LineShape();
int index1 = line.Vertices.IndexOf(vertex1);
int index2 = line.Vertices.IndexOf(vertex2);
if (index1 < index2)
{
for (int i = index1; i <= index2; i++)
{
result1.Vertices.Add(line.Vertices[i]);
}
for (int i = index1; i >= 0; i--)
{
result2.Vertices.Add(line.Vertices[i]);
}
for (int i = line.Vertices.Count - 2; i >= index2; i--)
{
result2.Vertices.Add(line.Vertices[i]);
}
}
else
{
for (int i = index2; i <= index1; i++)
{
result1.Vertices.Add(line.Vertices[i]);
}
for (int i = index2; i >= 0; i--)
{
result2.Vertices.Add(line.Vertices[i]);
}
for (int i = line.Vertices.Count - 2; i >= index1; i--)
{
result2.Vertices.Add(line.Vertices[i]);
}
}
double length1 = result1.GetLength(unit, DistanceUnit.Meter);
double length2 = result2.GetLength(unit, DistanceUnit.Meter);
return(length1 > length2 ? result2 : result1);
}
protected override RouteSegment GetRouteSegmentByFeatureIdCore(string roadId)
{
Feature feature = featureSource.GetFeatureById(roadId, ReturningColumnsType.NoColumns);
LineBaseShape shape = feature.GetShape() as LineBaseShape;
LineShape sourceShape = ConvertLineBaseShapeToLines(shape)[0];
sourceShape.Id = feature.Id;
Collection <string> startIds = new Collection <string>();
Collection <string> endIds = new Collection <string>();
GetAdjacentFeataureIds(featureSource, sourceShape, startIds, endIds);
PointShape startPoint = new PointShape(sourceShape.Vertices[0]);
PointShape endPoint = new PointShape(sourceShape.Vertices[sourceShape.Vertices.Count - 1]);
float length = (float)sourceShape.GetLength(GeographyUnit.Meter, DistanceUnit.Meter);
RouteSegment road = new RouteSegment(feature.Id, 0, length, startPoint, startIds, endPoint, endIds);
return(road);
}
public virtual float CalculateRoadCost(LineShape lineShape)
{
return((float)lineShape.GetLength(DataUnit, DistanceUnit));
}
public virtual float CalculateRoadCost(LineShape lineShape)
{
return (float)lineShape.GetLength(DataUnit, DistanceUnit);
}
private void TrackOverlay_TrackEnded(object sender, TrackEndedTrackInteractiveOverlayEventArgs e)
{
if (mapModel.MapControl.TrackOverlay.TrackMode == TrackMode.Polygon)
{
PolygonShape polygonShape = e.TrackShape as PolygonShape;
if (polygonShape != null)
{
double area = -1;
string areaUnit = "sq.m.";
switch (SelectedUnitSystem)
{
case UnitSystem.Metric:
areaUnit = "sq.m.";
area = polygonShape.GetArea(GeographyUnit.Meter, AreaUnit.SquareMeters);
break;
case UnitSystem.Imperial:
areaUnit = "ac.";
area = polygonShape.GetArea(GeographyUnit.Meter, AreaUnit.Acres);
break;
}
if (area > 0)
{
string content = string.Format(CultureInfo.InvariantCulture, "Area: {0} {1}", area.ToString("N1"), areaUnit);
ShowPopup(new PointShape(polygonShape.OuterRing.Vertices[polygonShape.OuterRing.Vertices.Count - 2]), content);
}
mapModel.MapControl.TrackOverlay.TrackShapeLayer.InternalFeatures.LastOrDefault().Tag = "Measure";
}
}
if (mapModel.MapControl.TrackOverlay.TrackMode == TrackMode.Line)
{
string unit = string.Empty;
LineShape lineShape = e.TrackShape as LineShape;
if (lineShape != null)
{
double lenth = 0;
if (SelectedUnitSystem == UnitSystem.Metric)
{
lenth = lineShape.GetLength(GeographyUnit.Meter, DistanceUnit.Meter);
unit = "m";
if (lenth >= 1000)
{
unit = "km";
lenth = Math.Round(lenth / 1000d, 1, MidpointRounding.AwayFromZero);
}
}
else if (SelectedUnitSystem == UnitSystem.Imperial)
{
lenth = lineShape.GetLength(GeographyUnit.Meter, DistanceUnit.Feet);
unit = "ft";
if (lenth >= 5280)
{
unit = "mi";
lenth = Math.Round(lenth / 5280d, 1, MidpointRounding.AwayFromZero);
}
}
string lengthString = lenth.ToString("N1");
string content = string.Format(CultureInfo.InvariantCulture, "Total Length: {0} {1}", lengthString, unit);
ShowPopup(new PointShape(lineShape.Vertices[lineShape.Vertices.Count - 1]), content);
mapModel.MapControl.TrackOverlay.TrackShapeLayer.InternalFeatures.LastOrDefault().Tag = "Measure";
}
}
}
private void btnCalculate_Click(object sender, RoutedEventArgs e)
{
//Get a reference to the results MapShapeLayer and clear it so we can display our new results.
MapShapeLayer results = (MapShapeLayer)((LayerOverlay)mapView.Overlays["layerOverlay"]).Layers["Results"];
results.MapShapes.Clear();
//Get a reference to the test data layer.
InMemoryFeatureLayer testDataLayer = (InMemoryFeatureLayer)((LayerOverlay)mapView.Overlays["layerOverlay"]).Layers["TestData"];
//Check to see if the test data has been edited.
if (mapView.EditOverlay.EditShapesLayer.InternalFeatures.Count > 0)
{
//Loop through the edited test data and update the test data layer.
testDataLayer.EditTools.BeginTransaction();
foreach (Feature feature in mapView.EditOverlay.EditShapesLayer.InternalFeatures)
{
testDataLayer.EditTools.Update(feature.CloneDeep());
}
testDataLayer.EditTools.CommitTransaction();
//Clear out the EditOverlay since we are done editing.
mapView.EditOverlay.EditShapesLayer.InternalFeatures.Clear();
//Since we are done editing, turn visibility back on the for the layer overlay so we can see our test data again.
mapView.Overlays["layerOverlay"].IsVisible = true;
}
//Get the test point feature from the test data layer.
Feature testPointFeature = testDataLayer.QueryTools.GetFeaturesByColumnValue("Name", "TestPoint", ReturningColumnsType.AllColumns)[0];
//Get the test line feature from the test data layer.
Feature testLineFeature = testDataLayer.QueryTools.GetFeaturesByColumnValue("Name", "TestLine", ReturningColumnsType.AllColumns)[0];
//Take the test line feature and create a line shape so we can use line-specific APIs for finding the shortest line and line-on-line.
LineShape testLine = new MultilineShape(testLineFeature.GetWellKnownText()).Lines[0];
//Calculate the shortest line between our test line and test point.
LineShape shortestLineResult = testLine.GetShortestLineTo(testPointFeature.GetShape(), GeographyUnit.Meter).Lines[0];
//Take the result and create a MapShape so we can display the shortest line on the map in a blue color.
MapShape shortestLine = new MapShape(new Feature(shortestLineResult));
shortestLine.ZoomLevels.ZoomLevel01.DefaultLineStyle = LineStyle.CreateSimpleLineStyle(GeoColors.Blue, 4, false);
shortestLine.ZoomLevels.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
results.MapShapes.Add("ShortestLine", shortestLine);
string message = "Length of Blue Line is: " + shortestLineResult.GetLength(GeographyUnit.Meter, DistanceUnit.Kilometer).ToString() + " KM" + '\n';
//Split the test line from the left side based on where the shortest line touches it.
LineBaseShape leftSideOfLineResult = testLine.GetLineOnALine(new PointShape(testLine.Vertices[0]), new PointShape(shortestLineResult.Vertices[0]));
//Make sure the split was valid and the closest point wasn't at the beginning or end of the line.
if (leftSideOfLineResult.Validate(ShapeValidationMode.Simple).IsValid)
{
MapShape leftSideOfLine = new MapShape(new Feature(leftSideOfLineResult));
leftSideOfLine.ZoomLevels.ZoomLevel01.DefaultLineStyle = LineStyle.CreateSimpleLineStyle(GeoColors.Green, 2, false);
leftSideOfLine.ZoomLevels.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
results.MapShapes.Add("LeftSideofLine", leftSideOfLine);
message += "Length of Green Line is: " + leftSideOfLineResult.GetLength(GeographyUnit.Meter, DistanceUnit.Kilometer).ToString() + " KM" + '\n';
}
//Split the test line from the right side based on where the shortest line touches it.
LineBaseShape rightSideOfLineResult = testLine.GetLineOnALine(new PointShape(shortestLineResult.Vertices[0]), new PointShape(testLine.Vertices[testLine.Vertices.Count - 1]));
//Make sure the split was valid and the closest point wasn't at the beginning or end of the line.
if (rightSideOfLineResult.Validate(ShapeValidationMode.Simple).IsValid)
{
MapShape rightSideOfLine = new MapShape(new Feature(rightSideOfLineResult));
rightSideOfLine.ZoomLevels.ZoomLevel01.DefaultLineStyle = LineStyle.CreateSimpleLineStyle(GeoColors.Yellow, 2, false);
rightSideOfLine.ZoomLevels.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
results.MapShapes.Add("RightSideofLine", rightSideOfLine);
message += "Length of Yellow Line is: " + rightSideOfLineResult.GetLength(GeographyUnit.Meter, DistanceUnit.Kilometer).ToString() + " KM" + '\n';
}
//Display the length of each line in kilometers.
message += "Length of Red Line is: " + testLine.GetLength(GeographyUnit.Meter, DistanceUnit.Kilometer).ToString() + " KM";
mapView.Refresh();
MessageBox.Show(message, "Results");
}