/// <summary>
/// Adds a line.
/// </summary>
public void AddLine(GeoCoordinate point1, GeoCoordinate point2, float sizePixels, int color)
{
if (point1 == null)
{
throw new ArgumentNullException();
}
if (point2 == null)
{
throw new ArgumentNullException();
}
// update envelope.
if (_envelope == null)
{ // create initial envelope.
_envelope = new GeoCoordinateBox(point1, point2);
}
// also include the current point.
_envelope.ExpandWith(point1);
_envelope.ExpandWith(point2);
var projected1 = _projection.ToPixel(point1);
var projected2 = _projection.ToPixel(point2);
var x = new double[] { projected1[0], projected2[0] };
var y = new double[] { projected1[1], projected2[1] };
uint?pointsId = _scene.AddPoints(x, y);
if (pointsId.HasValue)
{
_scene.AddStyleLine(pointsId.Value, 0, float.MinValue, float.MaxValue, color, sizePixels, Renderer.Primitives.LineJoin.Round, null);
this.RaiseLayerChanged();
}
}
/// <summary>
/// Adds a new OsmSharpRoute.
/// </summary>
/// <param name="route">Stream.</param>
/// <param name="argb">Stream.</param>
/// <param name="width"></param>
public void AddRoute(Route route, int argb, double width)
{
if (route != null &&
route.Segments != null &&
route.Segments.Length > 0)
{ // there are entries.
// get x/y.
var x = new double[route.Segments.Length];
var y = new double[route.Segments.Length];
for (int idx = 0; idx < route.Segments.Length; idx++)
{
x[idx] = _projection.LongitudeToX(
route.Segments[idx].Longitude);
y[idx] = _projection.LatitudeToY(
route.Segments[idx].Latitude);
}
// set the default color if none is given.
var color = SimpleColor.FromArgb(argb);
var pointsId = _scene.AddPoints(x, y);
if (pointsId.HasValue)
{
_scene.AddStyleLine(pointsId.Value, 0, float.MinValue, float.MaxValue,
color.Value, (float)width, Renderer.Primitives.LineJoin.Round, null);
}
}
this.RaiseLayerChanged();
}
/// <summary>
/// Adds a line.
/// </summary>
/// <param name="point1"></param>
/// <param name="point2"></param>
/// <param name="sizePixels"></param>
/// <param name="color"></param>
/// <returns></returns>
public void AddLine(GeoCoordinate point1, GeoCoordinate point2, float sizePixels, int color)
{
double[] projected1 = _projection.ToPixel(point1);
double[] projected2 = _projection.ToPixel(point2);
double[] x = new double[] { projected1[0], projected2[0] };
double[] y = new double[] { projected1[1], projected2[1] };
uint?pointsId = _scene.AddPoints(x, y);
if (pointsId.HasValue)
{
_scene.AddStyleLine(pointsId.Value, 0, float.MinValue, float.MaxValue, color, sizePixels, Renderer.Primitives.LineJoin.Round, null);
this.RaiseLayerChanged();
}
}
/// <summary>
/// Adds a new OsmSharpRoute.
/// </summary>
/// <param name="route">Stream.</param>
/// <param name="argb">Stream.</param>
/// <param name="width"></param>
public void AddRoute(Route route, int argb, double width)
{
if (route != null &&
route.Segments != null &&
route.Segments.Length > 0)
{ // there are entries.
// get x/y.
var x = new double[route.Segments.Length];
var y = new double[route.Segments.Length];
for (int idx = 0; idx < route.Segments.Length; idx++)
{
x[idx] = _projection.LongitudeToX(
route.Segments[idx].Longitude);
y[idx] = _projection.LatitudeToY(
route.Segments[idx].Latitude);
// update envelope.
if (_envelope == null)
{ // create initial envelope.
_envelope = new GeoCoordinateBox(
new GeoCoordinate(route.Segments[idx].Latitude, route.Segments[idx].Longitude),
new GeoCoordinate(route.Segments[idx].Latitude, route.Segments[idx].Longitude));
}
// also include the current point.
_envelope.ExpandWith(new GeoCoordinate(route.Segments[idx].Latitude, route.Segments[idx].Longitude));
}
// set the default color if none is given.
var color = SimpleColor.FromArgb(argb);
var pointsId = _scene.AddPoints(x, y);
if (pointsId.HasValue)
{
_scene.AddStyleLine(pointsId.Value, 0, float.MinValue, float.MaxValue,
color.Value, (float)width, Renderer.Primitives.LineJoin.Round, null);
}
}
this.RaiseLayerChanged();
}
/// <summary>
/// Merges objects from the given scene for the given zoom level.
/// </summary>
/// <param name="target"></param>
/// <param name="source"></param>
/// <param name="idx"></param>
private void MergeObjects(Scene2D target, Scene2D source, int idx)
{
var lines = new Dictionary <Scene2D.ScenePoints, Scene2DStylesSet>();
var linesIndex = new QuadTree <PointF2D, Scene2D.ScenePoints>();
var polygons = new Dictionary <Scene2D.ScenePoints, Scene2DStylesSet>();
//var polygonsIndex = new QuadTree<PointF2D, Scene2D.ScenePoints>();
Dictionary <uint, SceneObject> sceneObjects = source.GetSceneObjectsAt(idx);
float zoomFactor = source.GetMaximumZoomFactorAt(idx);
float epsilon = source.CalculateSimplificationEpsilon(zoomFactor);
foreach (var sceneObject in sceneObjects)
{
if (sceneObject.Value.Enum == SceneObjectType.LineObject)
{ // the scene object is a line object.
var sceneLineObject = sceneObject.Value as SceneLineObject;
Scene2D.ScenePoints scenePoints = source.GetPoints(sceneLineObject.GeoId);
Scene2DStylesSet stylesSet = null;
if (!lines.TryGetValue(scenePoints, out stylesSet))
{ // create styles set.
stylesSet = new Scene2DStylesSet();
lines.Add(scenePoints, stylesSet);
// add scenePoints to the index.
linesIndex.Add(new PointF2D(scenePoints.X[0], scenePoints.Y[0]), scenePoints);
linesIndex.Add(new PointF2D(scenePoints.X[scenePoints.X.Length - 1], scenePoints.Y[scenePoints.Y.Length - 1]), scenePoints);
}
stylesSet.AddStyleLine(sceneLineObject.StyleId);
}
else if (sceneObject.Value.Enum == SceneObjectType.LineTextObject)
{
var sceneLineTextObject = sceneObject.Value as SceneLineTextObject;
Scene2D.ScenePoints scenePoints = source.GetPoints(sceneLineTextObject.GeoId);
Scene2DStylesSet stylesSet = null;
if (!lines.TryGetValue(scenePoints, out stylesSet))
{ // create styles set.
stylesSet = new Scene2DStylesSet();
lines.Add(scenePoints, stylesSet);
// add scenePoints to the index.
linesIndex.Add(new PointF2D(scenePoints.X[0], scenePoints.Y[0]), scenePoints);
linesIndex.Add(new PointF2D(scenePoints.X[scenePoints.X.Length - 1], scenePoints.Y[scenePoints.Y.Length - 1]), scenePoints);
}
stylesSet.AddStyleLineText(sceneLineTextObject.StyleId, sceneLineTextObject.TextId);
}
else if (sceneObject.Value.Enum == SceneObjectType.IconObject)
{
throw new NotSupportedException("Icons not yet supported!");
//var sceneIconObject = (sceneObject.Value as SceneIconObject);
//Scene2D.ScenePoint scenePoint = source.GetPoint(sceneIconObject.GeoId);
//source.GetStyleIcon(
//target.AddIcon(target.AddPoint(scenePoint.X, scenePoint.Y);
}
else if (sceneObject.Value.Enum == SceneObjectType.PointObject)
{
var scenePointObject = (sceneObject.Value as ScenePointObject);
Scene2D.ScenePoint scenePoint = source.GetPoint(scenePointObject.GeoId);
StylePoint stylePoint = source.GetStylePoint(scenePointObject.StyleId);
target.AddStylePoint(target.AddPoint(scenePoint.X, scenePoint.Y), stylePoint.Layer, stylePoint.MinZoom, stylePoint.MaxZoom,
stylePoint.Color, stylePoint.Size);
}
else if (sceneObject.Value.Enum == SceneObjectType.PolygonObject)
{ // the scene object is a polygon.
var scenePolygonObject = (sceneObject.Value as ScenePolygonObject);
Scene2D.ScenePoints scenePoints = source.GetPoints(sceneObject.Value.GeoId);
Scene2DStylesSet stylesSet = null;
if (!polygons.TryGetValue(scenePoints, out stylesSet))
{ // create styles set.
stylesSet = new Scene2DStylesSet();
polygons.Add(scenePoints, stylesSet);
//// add scenePoints to the index.
//polygonsIndex.Add(new PointF2D(scenePoints.X[0], scenePoints.Y[0]), scenePoints);
//polygonsIndex.Add(new PointF2D(scenePoints.X[scenePoints.X.Length - 1], scenePoints.Y[scenePoints.Y.Length - 1]), scenePoints);
}
stylesSet.AddStylePolygon(scenePolygonObject.StyleId);
//var scenePolygonObject = (sceneObject.Value as ScenePolygonObject);
//Scene2D.ScenePoints scenePoints = source.GetPoints(sceneObject.Value.GeoId);
//StylePolygon stylePolygon = source.GetStylePolygon(sceneObject.Value.StyleId);
//uint? pointsId = target.AddPoints(scenePoints.X, scenePoints.Y);
//if (pointsId.HasValue)
//{
// target.AddStylePolygon(pointsId.Value, stylePolygon.Layer, stylePolygon.MinZoom, stylePolygon.MaxZoom,
// stylePolygon.Color, stylePolygon.Width, stylePolygon.Fill);
//}
}
else if (sceneObject.Value.Enum == SceneObjectType.TextObject)
{
var sceneTextObject = (sceneObject.Value as SceneTextObject);
Scene2D.ScenePoint scenePoint = source.GetPoint(sceneObject.Value.GeoId);
StyleText styleText = source.GetStyleText(sceneTextObject.StyleId);
string text = source.GetText(sceneTextObject.TextId);
target.AddText(target.AddPoint(scenePoint.X, scenePoint.Y), styleText.Layer, styleText.MinZoom, styleText.MaxZoom,
styleText.Size, text, styleText.Color, styleText.HaloColor, styleText.HaloRadius, styleText.Font);
}
}
// loop until there are no more candidates.
int totalLines = lines.Count;
float latestProgress = 0;
while (lines.Count > 0)
{
var line = lines.First();
lines.Remove(line.Key);
// report progress.
float progress = (float)System.Math.Round((((double)(totalLines - lines.Count) / (double)totalLines) * 100));
if (progress != latestProgress)
{
OsmSharp.Logging.Log.TraceEvent("SceneSerializer", OsmSharp.Logging.TraceEventType.Information,
"Merging lines @z{3}e{4} ({1}/{2})... {0}%", progress, totalLines - lines.Count, totalLines, zoomFactor, epsilon);
latestProgress = progress;
}
// copy the coordinates to lists.
double[] x = line.Key.X.Clone() as double[];
double[] y = line.Key.Y.Clone() as double[];
// find a matching line.
int mergeCount = 1;
Scene2D.ScenePoints found;
MatchPosition foundPosition = this.FindMatch(linesIndex, lines, x, y, line.Value, epsilon, out found);
while (found != null)
{ // TODO: keep expanding and duplicating until not possible anymore.
// remove the found line.
lines.Remove(found);
// report progress.
progress = (float)System.Math.Round((((double)(totalLines - lines.Count) / (double)totalLines) * 100));
if (progress != latestProgress)
{
OsmSharp.Logging.Log.TraceEvent("SceneSerializer", OsmSharp.Logging.TraceEventType.Information,
"Merging lines @z{3}e{4} ({1}/{2})... {0}%", progress, totalLines - lines.Count, totalLines, zoomFactor, epsilon);
latestProgress = progress;
}
// add the line.
int lengthBefore = x.Length;
Array.Resize(ref x, x.Length + found.X.Length - 1);
Array.Resize(ref y, y.Length + found.Y.Length - 1);
switch (foundPosition)
{
case MatchPosition.FirstFirst:
found.X.InsertToReverse(1, x, 0, found.X.Length - 1);
found.Y.InsertToReverse(1, y, 0, found.Y.Length - 1);
break;
case MatchPosition.FirstLast:
found.X.InsertTo(0, x, 0, found.X.Length - 1);
found.Y.InsertTo(0, y, 0, found.Y.Length - 1);
break;
case MatchPosition.LastFirst:
found.X.CopyTo(x, lengthBefore - 1);
found.Y.CopyTo(y, lengthBefore - 1);
break;
case MatchPosition.LastLast:
found.X.CopyToReverse(x, lengthBefore - 1);
found.Y.CopyToReverse(y, lengthBefore - 1);
break;
}
// select a new line.
foundPosition = this.FindMatch(linesIndex, lines, x, y, line.Value, epsilon, out found);
mergeCount++;
}
// simplify first.
double[][] simplified = OsmSharp.Math.Algorithms.SimplifyCurve.Simplify(new double[][] { x, y },
epsilon);
// add the new points.
uint?pointsId = target.AddPoints(simplified[0], simplified[1]);
// add points again with appropriate styles.
if (pointsId.HasValue)
{
foreach (var style in line.Value)
{
var scene2DStyleLine = (style as Scene2DStyleLine);
if (scene2DStyleLine != null)
{
StyleLine styleLine = source.GetStyleLine(scene2DStyleLine.StyleLineId);
target.AddStyleLine(pointsId.Value, styleLine.Layer, styleLine.MinZoom, styleLine.MaxZoom,
styleLine.Color, styleLine.Width, styleLine.LineJoin, styleLine.Dashes);
continue;
}
var scene2DStyleLineText = (style as Scene2DStyleLineText);
if (scene2DStyleLineText != null)
{
StyleText styleText = source.GetStyleLineText(scene2DStyleLineText.StyleLineTextId);
string text = source.GetText(scene2DStyleLineText.TextId);
target.AddStyleLineText(pointsId.Value, styleText.Layer, styleText.MinZoom, styleText.MaxZoom,
styleText.Color, styleText.Size, text, styleText.Font, styleText.HaloColor, styleText.HaloRadius);
continue;
}
}
}
}
// loop until there are no more candidates.
totalLines = polygons.Count;
latestProgress = 0;
while (polygons.Count > 0)
{
var polygon = polygons.First();
polygons.Remove(polygon.Key);
// report progress.
float progress = (float)System.Math.Round((((double)(totalLines - polygons.Count) / (double)totalLines) * 100));
if (progress != latestProgress)
{
OsmSharp.Logging.Log.TraceEvent("SceneSerializer", OsmSharp.Logging.TraceEventType.Information,
"Merging polygons @z{3}e{4} ({1}/{2})... {0}%", progress, totalLines - polygons.Count, totalLines, zoomFactor, epsilon);
latestProgress = progress;
}
// copy the coordinates to lists.
double[] x = polygon.Key.X.Clone() as double[];
double[] y = polygon.Key.Y.Clone() as double[];
//// find a matching line.
//int mergeCount = 1;
//Scene2D.ScenePoints found;
//MatchPosition foundPosition = this.FindMatch(linesIndex, lines, x, y, line.Value, epsilon, out found);
//while (found != null)
//{ // TODO: keep expanding and duplicating until not possible anymore.
// // remove the found line.
// lines.Remove(found);
// // report progress.
// progress = (float)System.Math.Round((((double)(totalLines - lines.Count) / (double)totalLines) * 100));
// if (progress != latestProgress)
// {
// OsmSharp.Logging.Log.TraceEvent("SceneSerializer", OsmSharp.Logging.TraceEventType.Information,
// "Merging lines @z{3}e{4} ({1}/{2})... {0}%", progress, totalLines - lines.Count, totalLines, zoomFactor, epsilon);
// latestProgress = progress;
// }
// // add the line.
// int lengthBefore = x.Length;
// Array.Resize(ref x, x.Length + found.X.Length - 1);
// Array.Resize(ref y, y.Length + found.Y.Length - 1);
// switch (foundPosition)
// {
// case MatchPosition.FirstFirst:
// found.X.InsertToReverse(1, x, 0, found.X.Length - 1);
// found.Y.InsertToReverse(1, y, 0, found.Y.Length - 1);
// break;
// case MatchPosition.FirstLast:
// found.X.InsertTo(0, x, 0, found.X.Length - 1);
// found.Y.InsertTo(0, y, 0, found.Y.Length - 1);
// break;
// case MatchPosition.LastFirst:
// found.X.CopyTo(x, lengthBefore - 1);
// found.Y.CopyTo(y, lengthBefore - 1);
// break;
// case MatchPosition.LastLast:
// found.X.CopyToReverse(x, lengthBefore - 1);
// found.Y.CopyToReverse(y, lengthBefore - 1);
// break;
// }
// // select a new line.
// foundPosition = this.FindMatch(linesIndex, lines, x, y, line.Value, epsilon, out found);
// mergeCount++;
//}
// simplify first.
double[][] simplified = OsmSharp.Math.Algorithms.SimplifyCurve.Simplify(new double[][] { x, y },
epsilon);
// add the new points.
uint?pointsId = target.AddPoints(simplified[0], simplified[1]);
// add points again with appropriate styles.
if (pointsId.HasValue)
{
foreach (var style in polygon.Value)
{
var scene2DStylePolygon = (style as Scene2DStylePolygon);
if (scene2DStylePolygon != null)
{
StylePolygon stylePolygon = source.GetStylePolygon(scene2DStylePolygon.StylePolygonId);
target.AddStylePolygon(pointsId.Value, stylePolygon.Layer, stylePolygon.MinZoom, stylePolygon.MaxZoom,
stylePolygon.Color, stylePolygon.Width, stylePolygon.Fill);
continue;
}
}
}
}
}
/// <summary>
/// Translates a lineair ring.
/// </summary>
/// <param name="scene">The scene to add primitives to.</param>
/// <param name="projection">The projection used to convert the objects.</param>
/// <param name="lineairRing"></param>
private void TranslateLineairRing(Scene2D scene, IProjection projection, LineairRing lineairRing)
{
// build the rules.
List <MapCSSRuleProperties> rules =
this.BuildRules(new MapCSSObject(lineairRing));
// validate what's there.
if (rules.Count == 0)
{
return;
}
// get x/y.
double[] x = null, y = null;
if (lineairRing.Coordinates != null &&
lineairRing.Coordinates.Count > 0)
{ // pre-calculate x/y.
x = new double[lineairRing.Coordinates.Count];
y = new double[lineairRing.Coordinates.Count];
for (int idx = 0; idx < lineairRing.Coordinates.Count; idx++)
{
x[idx] = projection.LongitudeToX(
lineairRing.Coordinates[idx].Longitude);
y[idx] = projection.LatitudeToY(
lineairRing.Coordinates[idx].Latitude);
}
// simplify.
if (x.Length > 2)
{
double[][] simplified = SimplifyCurve.Simplify(new double[][] { x, y }, 0.0001);
x = simplified[0];
y = simplified[1];
}
}
// add the z-index.
foreach (var rule in rules)
{
float minZoom = (float)projection.ToZoomFactor(rule.MinZoom);
float maxZoom = (float)projection.ToZoomFactor(rule.MaxZoom);
int zIndex;
if (!rule.TryGetProperty <int>("zIndex", out zIndex))
{
zIndex = 0;
}
// interpret the results.
if (x != null)
{ // there is a valid interpretation of this way.
int color;
int fillColor;
if (rule.TryGetProperty("fillColor", out fillColor))
{ // render as an area.
float fillOpacity;
if (rule.TryGetProperty("fillOpacity", out fillOpacity))
{
SimpleColor simpleFillColor = new SimpleColor()
{
Value = fillColor
};
fillColor = SimpleColor.FromArgb((int)(255 * fillOpacity),
simpleFillColor.R, simpleFillColor.G, simpleFillColor.B).Value;
}
uint?pointsId = scene.AddPoints(x, y);
if (pointsId.HasValue)
{
scene.AddStylePolygon(pointsId.Value, this.CalculateSceneLayer(OffsetArea, zIndex), minZoom, maxZoom, fillColor, 1, true);
if (rule.TryGetProperty("color", out color))
{
scene.AddStylePolygon(pointsId.Value, this.CalculateSceneLayer(OffsetCasing, zIndex), minZoom, maxZoom, color, 1, false);
}
}
}
}
}
}
/// <summary>
/// Translates a way.
/// </summary>
/// <param name="scene">The scene to add primitives to.</param>
/// <param name="projection">The projection used to convert the objects.</param>
/// <param name="way"></param>
private void TranslateWay(Scene2D scene, IProjection projection, CompleteWay way)
{
// build the rules.
List <MapCSSRuleProperties> rules =
this.BuildRules(new MapCSSObject(way));
// validate what's there.
if (rules.Count == 0)
{
return;
}
// get x/y.
double[] x = null, y = null;
if (x == null)
{ // pre-calculate x/y.
x = new double[way.Nodes.Count];
y = new double[way.Nodes.Count];
for (int idx = 0; idx < way.Nodes.Count; idx++)
{
x[idx] = projection.LongitudeToX(
way.Nodes[idx].Coordinate.Longitude);
y[idx] = projection.LatitudeToY(
way.Nodes[idx].Coordinate.Latitude);
}
// simplify.
if (x.Length > 2)
{
double[][] simplified = SimplifyCurve.Simplify(new double[][] { x, y }, 0.0001);
x = simplified[0];
y = simplified[1];
}
}
// add the z-index.
foreach (var rule in rules)
{
float minZoom = (float)projection.ToZoomFactor(rule.MinZoom);
float maxZoom = (float)projection.ToZoomFactor(rule.MaxZoom);
int zIndex;
if (!rule.TryGetProperty <int>("zIndex", out zIndex))
{
zIndex = 0;
}
// interpret the results.
if (x != null)
{ // there is a valid interpretation of this way.
int color;
bool renderAsLine = true;
if (way.IsOfType(MapCSSTypes.Area))
{ // the way is an area. check if it can be rendered as an area.
int fillColor;
if (rule.TryGetProperty("fillColor", out fillColor))
{ // render as an area.
uint?pointsId = scene.AddPoints(x, y);
if (pointsId.HasValue)
{
scene.AddStylePolygon(pointsId.Value, this.CalculateSceneLayer(OffsetArea, zIndex), minZoom, maxZoom, fillColor, 1, true);
if (rule.TryGetProperty("color", out color))
{
scene.AddStylePolygon(pointsId.Value, this.CalculateSceneLayer(OffsetCasing, zIndex), minZoom, maxZoom, color, 1, false);
}
}
renderAsLine = false; // was validly rendered als a line.
}
}
if (renderAsLine)
{ // was not rendered as an area.
// the way has to rendered as a line.
LineJoin lineJoin;
if (!rule.TryGetProperty("lineJoin", out lineJoin))
{
lineJoin = LineJoin.Miter;
}
int[] dashes;
if (!rule.TryGetProperty("dashes", out dashes))
{
dashes = null;
}
if (rule.TryGetProperty("color", out color))
{
float casingWidth;
int casingColor;
if (!rule.TryGetProperty("casingWidth", out casingWidth))
{
casingWidth = 0;
}
if (!rule.TryGetProperty("casingColor", out casingColor))
{ // casing: use the casing layer.
casingColor = -1;
}
float width;
if (!rule.TryGetProperty("width", out width))
{
width = 1;
}
uint?pointsId = scene.AddPoints(x, y);
if (pointsId.HasValue)
{
if (casingWidth > 0)
{ // adds the casing
scene.AddStyleLine(pointsId.Value, this.CalculateSceneLayer(OffsetCasing, zIndex),
minZoom, maxZoom, casingColor, width + (casingWidth * 2), lineJoin, dashes);
}
if (dashes == null)
{ // dashes not set, use line offset.
scene.AddStyleLine(pointsId.Value, this.CalculateSceneLayer(OffsetLine, zIndex),
minZoom, maxZoom, color, width, lineJoin, dashes);
}
else
{ // dashes set, use line pattern offset.
scene.AddStyleLine(pointsId.Value, this.CalculateSceneLayer(OffsetLinePattern, zIndex),
minZoom, maxZoom, color, width, lineJoin, dashes);
}
int textColor;
int fontSize;
string nameTag;
if (!rule.TryGetProperty("fontSize", out fontSize))
{
fontSize = 10;
}
if (rule.TryGetProperty("text", out nameTag) &&
rule.TryGetProperty("textColor", out textColor))
{
int haloColor;
int?haloColorNullable = null;
if (rule.TryGetProperty("textHaloColor", out haloColor))
{
haloColorNullable = haloColor;
}
int haloRadius;
int?haloRadiusNullable = null;
if (rule.TryGetProperty("textHaloRadius", out haloRadius))
{
haloRadiusNullable = haloRadius;
}
string fontFamily;
if (!rule.TryGetProperty("fontFamily", out fontFamily))
{
fontFamily = "Arial"; // just some default font.
}
string name;
if (way.Tags.TryGetValue(nameTag, out name))
{
scene.AddStyleLineText(pointsId.Value, this.CalculateSceneLayer(OffsetLineText, zIndex),
minZoom, maxZoom, textColor, fontSize, name, fontFamily, haloColorNullable, haloRadiusNullable);
}
}
}
}
}
}
}
}
/// <summary>
/// Translates OSM objects into basic renderable primitives.
/// </summary>
/// <param name="scene">The scene to add primitives to.</param>
/// <param name="projection">The projection used to convert the objects.</param>
/// <param name="osmGeo">The osm object.</param>
/// <returns></returns>
public override void Translate(Scene2D scene, IProjection projection, CompleteOsmGeo osmGeo)
{
// set the scene backcolor.
scene.BackColor = this.GetCanvasColor().Value;
if (osmGeo == null)
{
return;
}
// store the object count.
int countBefore = scene.Count;
// interpret the osm-objects.
switch (osmGeo.Type)
{
case CompleteOsmType.Node:
this.TranslateNode(scene, projection, osmGeo as CompleteNode);
break;
case CompleteOsmType.Way:
this.TranslateWay(scene, projection, osmGeo as CompleteWay);
break;
case CompleteOsmType.Relation:
this.TranslateRelation(scene, projection, osmGeo as CompleteRelation);
break;
case CompleteOsmType.ChangeSet:
break;
default:
throw new ArgumentOutOfRangeException();
}
// interpret the osmGeo object and check if it makes up an area.
GeometryCollection collection = _geometryInterpreter.Interpret(osmGeo);
foreach (Geometry geometry in collection)
{
if (geometry is LineairRing)
{ // a simple lineair ring.
this.TranslateLineairRing(scene, projection, geometry as LineairRing);
}
else if (geometry is Polygon)
{ // a simple polygon.
this.TranslatePolygon(scene, projection, geometry as Polygon);
}
else if (geometry is MultiPolygon)
{ // a multipolygon.
this.TranslateMultiPolygon(scene, projection, geometry as MultiPolygon);
}
}
// check if any objects have been added to the scene.
if (scene.Count <= countBefore)
{ // no objects have been added. Apply default styles if needed.
if (osmGeo.Type == CompleteOsmType.Node &&
_mapCSSFile != null &&
_mapCSSFile.DefaultPoints)
{ // apply default points style.
CompleteNode node = (osmGeo as CompleteNode);
uint pointId = scene.AddPoint(projection.LongitudeToX(node.Coordinate.Longitude), projection.LatitudeToY(node.Coordinate.Latitude));
scene.AddStylePoint(pointId, this.CalculateSceneLayer(OffsetPoint, 0), float.MinValue, float.MaxValue,
SimpleColor.FromKnownColor(KnownColor.Black).Value, 2);
}
else if (osmGeo.Type == CompleteOsmType.Way &&
_mapCSSFile != null &&
_mapCSSFile.DefaultLines)
{ // apply default lines style.
CompleteWay way = (osmGeo as CompleteWay);
// get x/y.
double[] x = null, y = null;
if (x == null)
{ // pre-calculate x/y.
x = new double[way.Nodes.Count];
y = new double[way.Nodes.Count];
for (int idx = 0; idx < way.Nodes.Count; idx++)
{
x[idx] = projection.LongitudeToX(
way.Nodes[idx].Coordinate.Longitude);
y[idx] = projection.LatitudeToY(
way.Nodes[idx].Coordinate.Latitude);
}
// simplify.
if (x.Length > 2)
{
double[][] simplified = SimplifyCurve.Simplify(new double[][] { x, y }, 0.0001);
x = simplified[0];
y = simplified[1];
}
}
uint?points = scene.AddPoints(x, y);
if (points.HasValue)
{
scene.AddStyleLine(points.Value, this.CalculateSceneLayer(OffsetLine, 0), float.MinValue, float.MaxValue,
SimpleColor.FromKnownColor(KnownColor.Red).Value, 1, LineJoin.Round, null);
}
}
}
}
/// <summary>
/// Adds a new GPX.
/// </summary>
/// <param name="stream">Stream.</param>
public GeoCoordinateBox AddGpx(Stream stream)
{
GeoCoordinateBox bounds = null;
var gpxStream = new GpxGeoStreamSource(stream);
foreach (var geometry in gpxStream)
{
if (geometry is Point)
{ // add the point.
var point = (geometry as Point);
// get x/y.
var x = _projection.LongitudeToX(point.Coordinate.Longitude);
var y = _projection.LatitudeToY(point.Coordinate.Latitude);
// set the default color if none is given.
SimpleColor blue = SimpleColor.FromKnownColor(KnownColor.Blue);
SimpleColor transparantBlue = SimpleColor.FromArgb(128,
blue.R, blue.G, blue.B);
uint pointId = _scene.AddPoint(x, y);
_scene.AddStylePoint(pointId, 0, float.MinValue, float.MaxValue, transparantBlue.Value, 8);
if (bounds == null)
{ // create box.
bounds = point.Box;
}
else
{ // add to the current box.
bounds = bounds + point.Box;
}
}
else if (geometry is LineString)
{ // add the lineString.
var lineString = (geometry as LineString);
// get x/y.
var x = new double[lineString.Coordinates.Count];
var y = new double[lineString.Coordinates.Count];
for (int idx = 0; idx < lineString.Coordinates.Count; idx++)
{
x[idx] = _projection.LongitudeToX(
lineString.Coordinates[idx].Longitude);
y[idx] = _projection.LatitudeToY(
lineString.Coordinates[idx].Latitude);
}
// set the default color if none is given.
SimpleColor blue = SimpleColor.FromKnownColor(KnownColor.Blue);
SimpleColor transparantBlue = SimpleColor.FromArgb(128,
blue.R, blue.G, blue.B);
uint?pointsId = _scene.AddPoints(x, y);
if (pointsId.HasValue)
{
_scene.AddStyleLine(pointsId.Value, 0, float.MinValue, float.MaxValue, transparantBlue.Value, 8, Renderer.Primitives.LineJoin.Round, null);
if (bounds == null)
{ // create box.
bounds = lineString.Box;
}
else
{ // add to the current box.
bounds = bounds + lineString.Box;
}
}
}
}
return(bounds);
}
/// <summary>
/// Merges objects from the given scene for the given zoom level.
/// </summary>
/// <param name="target"></param>
/// <param name="source"></param>
/// <param name="idx"></param>
private void MergeObjects(Scene2D target, Scene2D source, int idx)
{
Dictionary<Scene2D.ScenePoints, Scene2DStylesSet> lines = new Dictionary<Scene2D.ScenePoints, Scene2DStylesSet>();
Dictionary<PointF2D, HashSet<Scene2D.ScenePoints>> endpoints = new Dictionary<PointF2D, HashSet<Scene2D.ScenePoints>>();
Dictionary<uint, SceneObject> sceneObjects = source.GetSceneObjectsAt(idx);
foreach (var sceneObject in sceneObjects)
{
if (sceneObject.Value.Enum == SceneObjectType.LineObject)
{ // the scene object is a line object.
var sceneLineObject = sceneObject.Value as SceneLineObject;
Scene2D.ScenePoints scenePoints = source.GetPoints(sceneLineObject.GeoId);
Scene2DStylesSet stylesSet = null;
if (!lines.TryGetValue(scenePoints, out stylesSet))
{ // create styles set.
stylesSet = new Scene2DStylesSet();
lines.Add(scenePoints, stylesSet);
}
stylesSet.AddStyleLine(sceneLineObject.StyleId);
//var sceneLineObject = (sceneObject.Value as SceneLineObject);
//Scene2D.ScenePoints scenePoints = source.GetPoints(sceneLineObject.GeoId);
//StyleLine styleLine = source.GetStyleLine(sceneLineObject.StyleId);
//uint? pointsId = target.AddPoints(scenePoints.X, scenePoints.Y);
//if (pointsId.HasValue)
//{
// target.AddStyleLine(pointsId.Value, styleLine.Layer, styleLine.MinZoom, styleLine.MaxZoom,
// styleLine.Color, styleLine.Width, styleLine.LineJoin, styleLine.Dashes);
//}
}
else if (sceneObject.Value.Enum == SceneObjectType.LineTextObject)
{
var sceneLineTextObject = sceneObject.Value as SceneLineTextObject;
Scene2D.ScenePoints scenePoints = source.GetPoints(sceneLineTextObject.GeoId);
Scene2DStylesSet stylesSet = null;
if (!lines.TryGetValue(scenePoints, out stylesSet))
{ // create styles set.
stylesSet = new Scene2DStylesSet();
lines.Add(scenePoints, stylesSet);
}
stylesSet.AddStyleLineText(sceneLineTextObject.StyleId, sceneLineTextObject.TextId);
//var sceneLineTextObject = (sceneObject.Value as SceneLineTextObject);
//Scene2D.ScenePoints scenePoints = source.GetPoints(sceneLineTextObject.GeoId);
//StyleText styleText = source.GetStyleText(sceneLineTextObject.StyleId);
//string text = source.GetText(sceneLineTextObject.TextId);
//uint? pointsId = target.AddPoints(scenePoints.X, scenePoints.Y);
//if (pointsId.HasValue)
//{
// target.AddStyleLineText(pointsId.Value, styleText.Layer, styleText.MinZoom, styleText.MaxZoom,
// styleText.Color, styleText.Size, text, styleText.Font, styleText.HaloColor, styleText.HaloRadius);
//}
}
else if (sceneObject.Value.Enum == SceneObjectType.IconObject)
{
throw new NotSupportedException("Icons not yet supported!");
//var sceneIconObject = (sceneObject.Value as SceneIconObject);
//Scene2D.ScenePoint scenePoint = source.GetPoint(sceneIconObject.GeoId);
//source.GetStyleIcon(
//target.AddIcon(target.AddPoint(scenePoint.X, scenePoint.Y);
}
else if (sceneObject.Value.Enum == SceneObjectType.PointObject)
{
var scenePointObject = (sceneObject.Value as ScenePointObject);
Scene2D.ScenePoint scenePoint = source.GetPoint(scenePointObject.GeoId);
StylePoint stylePoint = source.GetStylePoint(scenePointObject.StyleId);
target.AddStylePoint(target.AddPoint(scenePoint.X, scenePoint.Y), stylePoint.Layer, stylePoint.MinZoom, stylePoint.MaxZoom,
stylePoint.Color, stylePoint.Size);
}
else if (sceneObject.Value.Enum == SceneObjectType.PolygonObject)
{
var scenePolygonObject = (sceneObject.Value as ScenePolygonObject);
Scene2D.ScenePoints scenePoints = source.GetPoints(sceneObject.Value.GeoId);
StylePolygon stylePolygon = source.GetStylePolygon(sceneObject.Value.StyleId);
uint? pointsId = target.AddPoints(scenePoints.X, scenePoints.Y);
if (pointsId.HasValue)
{
target.AddStylePolygon(pointsId.Value, stylePolygon.Layer, stylePolygon.MinZoom, stylePolygon.MaxZoom,
stylePolygon.Color, stylePolygon.Width, stylePolygon.Fill);
}
}
else if (sceneObject.Value.Enum == SceneObjectType.TextObject)
{
var sceneTextObject = (sceneObject.Value as SceneTextObject);
Scene2D.ScenePoint scenePoint = source.GetPoint(sceneObject.Value.GeoId);
StyleText styleText = source.GetStyleText(sceneTextObject.StyleId);
string text = source.GetText(sceneTextObject.TextId);
target.AddText(target.AddPoint(scenePoint.X, scenePoint.Y), styleText.Layer, styleText.MinZoom, styleText.MaxZoom,
styleText.Size, text, styleText.Color, styleText.HaloColor, styleText.HaloRadius, styleText.Font);
}
}
// loop until there are no more candidates.
int totalLines = lines.Count;
float latestProgress = 0;
while (lines.Count > 0)
{
var line = lines.First();
lines.Remove(line.Key);
// report progress.
float progress = (float)System.Math.Round((((double)(totalLines - lines.Count) / (double)totalLines) * 100));
if (progress != latestProgress)
{
OsmSharp.Logging.Log.TraceEvent("SceneSerializer", OsmSharp.Logging.TraceEventType.Information,
"Merging lines ({1}/{2})... {0}%", progress, totalLines - lines.Count, totalLines);
latestProgress = progress;
}
// copy the coordinates to lists.
double[] x = line.Key.X.Clone() as double[];
double[] y = line.Key.Y.Clone() as double[];
// find a matching line.
int mergeCount = 1;
Scene2D.ScenePoints found;
MatchPosition foundPosition = this.FindMatch(lines, x, y, line.Value, out found);
while (found != null)
{ // TODO: keep expanding and duplicating until not possible anymore.
// remove the found line.
lines.Remove(found);
// add the line.
int lengthBefore = x.Length;
Array.Resize(ref x, x.Length + found.X.Length - 1);
Array.Resize(ref y, y.Length + found.Y.Length - 1);
switch (foundPosition)
{
case MatchPosition.FirstFirst:
found.X.InsertToReverse(1, x, 0, found.X.Length - 1);
found.Y.InsertToReverse(1, y, 0, found.Y.Length - 1);
break;
case MatchPosition.FirstLast:
found.X.InsertTo(0, x, 0, found.X.Length - 1);
found.Y.InsertTo(0, y, 0, found.Y.Length - 1);
break;
case MatchPosition.LastFirst:
found.X.CopyTo(x, lengthBefore - 1);
found.Y.CopyTo(y, lengthBefore - 1);
break;
case MatchPosition.LastLast:
found.X.CopyToReverse(x, lengthBefore - 1);
found.Y.CopyToReverse(y, lengthBefore - 1);
break;
}
// select a new line.
foundPosition = this.FindMatch(lines, x, y, line.Value, out found);
mergeCount++;
}
// add the new points.
uint? pointsId = target.AddPoints(x, y);
// add points again with appropriate styles.
if (pointsId.HasValue)
{
foreach (var style in line.Value)
{
var scene2DStyleLine = (style as Scene2DStyleLine);
if (scene2DStyleLine != null)
{
StyleLine styleLine = source.GetStyleLine(scene2DStyleLine.StyleLineId);
target.AddStyleLine(pointsId.Value, styleLine.Layer, styleLine.MinZoom, styleLine.MaxZoom,
styleLine.Color, styleLine.Width, styleLine.LineJoin, styleLine.Dashes);
continue;
}
var scene2DStyleLineText = (style as Scene2DStyleLineText);
if (scene2DStyleLineText != null)
{
StyleText styleText = source.GetStyleLineText(scene2DStyleLineText.StyleLineTextId);
string text = source.GetText(scene2DStyleLineText.TextId);
target.AddStyleLineText(pointsId.Value, styleText.Layer, styleText.MinZoom, styleText.MaxZoom,
styleText.Color, styleText.Size, text, styleText.Font, styleText.HaloColor, styleText.HaloRadius);
continue;
}
}
}
}
}