/// <summary>
/// Deserializes the given leaf.
/// </summary>
/// <param name="typeModel"></param>
/// <param name="data"></param>
/// <param name="boxes"></param>
/// <returns></returns>
protected override List <Primitive2D> DeSerialize(RuntimeTypeModel typeModel,
byte[] data, out List <BoxF2D> boxes)
{
if (_compressed)
{ // decompress if needed.
data = GZipStream.UncompressBuffer(data);
}
List <Primitive2D> dataLists = new List <Primitive2D>();
boxes = new List <BoxF2D>();
int scaleFactor = _scaleFactor;
// Assume the following stuff already exists in the current scene:
// - ZoomRanges
// - Styles
// deserialize the leaf data.
SceneObjectBlock leafData = typeModel.Deserialize(
new MemoryStream(data), null, typeof(SceneObjectBlock)) as SceneObjectBlock;
// decode
for (int idx = 0; idx < leafData.PointsX.Count; idx++)
{
leafData.PointsX[idx] = leafData.PointsX[idx] + leafData.PointsXMin;
leafData.PointsY[idx] = leafData.PointsY[idx] + leafData.PointsYMin;
}
// store the next points.
bool[] pointsStarts = new bool[leafData.PointsX.Count];
// loop over all points.
for (int idx = 0; idx < leafData.PointPointId.Count; idx++)
{
pointsStarts[leafData.PointPointId[idx]] = true;
}
// loop over all text-points.
for (int idx = 0; idx < leafData.TextPointPointId.Count; idx++)
{
pointsStarts[leafData.TextPointPointId[idx]] = true;
}
// loop over all icons.
for (int idx = 0; idx < leafData.IconPointId.Count; idx++)
{
pointsStarts[leafData.IconPointId[idx]] = true;
}
// loop over all lines.
for (int idx = 0; idx < leafData.LinePointsId.Count; idx++)
{
pointsStarts[leafData.LinePointsId[idx]] = true;
}
// loop over all polygons.
for (int idx = 0; idx < leafData.PolygonPointsId.Count; idx++)
{
pointsStarts[leafData.PolygonPointsId[idx]] = true;
}
// loop over all line-texts.
for (int idx = 0; idx < leafData.LineTextPointsId.Count; idx++)
{
pointsStarts[leafData.LineTextPointsId[idx]] = true;
}
Dictionary <int, int> pointsBoundaries = new Dictionary <int, int>();
int previous = 0;
for (int idx = 1; idx < pointsStarts.Length; idx++)
{
if (pointsStarts[idx])
{ // there is a start here.
pointsBoundaries[previous] = idx - previous;
previous = idx;
}
}
pointsBoundaries[previous] = pointsStarts.Length - previous;
// loop over all points.
for (int idx = 0; idx < leafData.PointPointId.Count; idx++)
{
// get properties.
int pointId = leafData.PointPointId[idx];
uint styleId = leafData.PointStyleId[idx];
// get point/style/zoomrange.
double x = (double)leafData.PointsX[pointId] / (double)scaleFactor;
double y = (double)leafData.PointsY[pointId] / (double)scaleFactor;
StylePoint style = _index.PointStyles[styleId];
// build the primitive.
Point2D point = new Point2D(x, y, style.Color, style.Size);
point.Layer = style.Layer;
point.MinZoom = style.MinZoom;
point.MaxZoom = style.MaxZoom;
dataLists.Add(point);
boxes.Add(new BoxF2D(new PointF2D(x, y)));
}
// loop over all text-points.
for (int idx = 0; idx < leafData.TextPointPointId.Count; idx++)
{
// get properties.
int pointId = leafData.TextPointPointId[idx];
uint styleId = leafData.TextPointStyleId[idx];
string text = leafData.TextPointText[idx];
// get point/style/zoomrange.
float x = (float)leafData.PointsX[pointId] / (float)scaleFactor;
float y = (float)leafData.PointsY[pointId] / (float)scaleFactor;
StyleText style = _index.TextStyles[styleId];
// build the primitive.
Text2D text2D = new Text2D(x, y, text, style.Color, style.Size);
text2D.Layer = style.Layer;
text2D.HaloColor = style.HaloColor;
text2D.HaloRadius = style.HaloRadius;
text2D.MinZoom = style.MinZoom;
text2D.MaxZoom = style.MaxZoom;
dataLists.Add(text2D);
boxes.Add(new BoxF2D(new PointF2D(x, y)));
}
// loop over all icons.
for (int idx = 0; idx < leafData.IconPointId.Count; idx++)
{
// get properties.
int pointId = leafData.IconPointId[idx];
uint imageId = leafData.IconImageId[idx];
// get point/style/zoomrange.
double x = (double)leafData.PointsX[pointId] / (double)scaleFactor;
double y = (double)leafData.PointsY[pointId] / (double)scaleFactor;
byte[] image = _index.IconImage[(int)imageId];
// build the primitive.
Icon2D icon = new Icon2D(x, y, image);
icon.Layer = 0;
// TODO: layer and zoom level. style.MinZoom, style.MaxZoom
dataLists.Add(icon);
boxes.Add(new BoxF2D(new PointF2D(x, y)));
}
// loop over all lines.
for (int idx = 0; idx < leafData.LinePointsId.Count; idx++)
{
// get properties.
int pointsId = leafData.LinePointsId[idx];
uint styleId = leafData.LineStyleId[idx];
// get points/style/zoomrange.
int pointsCount = pointsBoundaries[pointsId];
double[] x =
leafData.PointsX.GetRange(pointsId, pointsCount).ConvertFromLongArray(scaleFactor);
double[] y =
leafData.PointsY.GetRange(pointsId, pointsCount).ConvertFromLongArray(scaleFactor);
StyleLine style = _index.LineStyles[styleId];
// build the primitive.
Line2D line = new Line2D(x, y, style.Color, style.Width, style.LineJoin, style.Dashes);
line.Layer = style.Layer;
line.MinZoom = style.MinZoom;
line.MaxZoom = style.MaxZoom;
dataLists.Add(line);
boxes.Add(new BoxF2D(x, y));
}
// loop over all polygons.
for (int idx = 0; idx < leafData.PolygonPointsId.Count; idx++)
{
// get properties.
int pointsId = leafData.PolygonPointsId[idx];
uint styleId = leafData.PolygonStyleId[idx];
// get points/style/zoomrange.
int pointsCount = pointsBoundaries[pointsId];
double[] x =
leafData.PointsX.GetRange(pointsId, pointsCount).ConvertFromLongArray(scaleFactor);
double[] y =
leafData.PointsY.GetRange(pointsId, pointsCount).ConvertFromLongArray(scaleFactor);
StylePolygon style = _index.PolygonStyles[styleId];
// build the primitive.
Polygon2D polygon = new Polygon2D(x, y, style.Color, style.Width, style.Fill);
polygon.Layer = style.Layer;
polygon.MaxZoom = style.MaxZoom;
polygon.MinZoom = style.MinZoom;
dataLists.Add(polygon);
boxes.Add(new BoxF2D(x, y));
}
// loop over all line-texts.
for (int idx = 0; idx < leafData.LineTextPointsId.Count; idx++)
{
// get properties.
int pointsId = leafData.LineTextPointsId[idx];
uint styleId = leafData.LineTextStyleId[idx];
string text = leafData.LineTextText[idx];
// get points/style/zoomrange.
int pointsCount = pointsBoundaries[pointsId];
double[] x =
leafData.PointsX.GetRange(pointsId, pointsCount).ConvertFromLongArray(scaleFactor);
double[] y =
leafData.PointsY.GetRange(pointsId, pointsCount).ConvertFromLongArray(scaleFactor);
StyleText style = _index.TextStyles[styleId];
// build the primitive.
LineText2D lineText = new LineText2D(x, y, style.Color, style.Size, text);
lineText.Layer = style.Layer;
lineText.Font = style.Font;
lineText.HaloColor = style.HaloColor;
lineText.HaloRadius = style.HaloRadius;
lineText.MinZoom = style.MinZoom;
lineText.MaxZoom = style.MaxZoom;
dataLists.Add(lineText);
boxes.Add(new BoxF2D(x, y));
}
return(dataLists);
}
/// <summary>
/// Serializes one leaf.
/// </summary>
/// <param name="typeModel"></param>
/// <param name="data"></param>
/// <param name="boxes"></param>
/// <returns></returns>
protected override byte[] Serialize(RuntimeTypeModel typeModel,
List <SceneObject> data, List <BoxF2D> boxes)
{
int scaleFactor = _scaleFactor;
Dictionary <uint, int> addedPoint = new Dictionary <uint, int>();
Dictionary <uint, int> addedPoints = new Dictionary <uint, int>();
SceneObjectBlock leafData = new SceneObjectBlock();
//leafData.PointsIndexes = new List<int>();
leafData.PointsX = new List <long>();
leafData.PointsY = new List <long>();
leafData.IconPointId = new List <int>();
leafData.IconImageId = new List <uint>();
leafData.LinePointsId = new List <int>();
leafData.LineStyleId = new List <uint>();
leafData.LineTextPointsId = new List <int>();
leafData.LineTextStyleId = new List <uint>();
leafData.LineTextText = new List <string>();
leafData.PointPointId = new List <int>();
leafData.PointStyleId = new List <uint>();
leafData.PolygonPointsId = new List <int>();
leafData.PolygonStyleId = new List <uint>();
leafData.TextPointPointId = new List <int>();
leafData.TextPointStyleId = new List <uint>();
leafData.TextPointText = new List <string>();
foreach (SceneObject sceneObject in data)
{
int geoId = -1;
OsmSharp.UI.Renderer.Scene.Scene2D.ScenePoint point;
OsmSharp.UI.Renderer.Scene.Scene2D.ScenePoints points;
switch (sceneObject.Enum)
{
case SceneObjectType.IconObject:
// get point.
point = _scene.GetPoint(sceneObject.GeoId);
// set point data and keep id.
if (!addedPoint.TryGetValue(sceneObject.GeoId, out geoId))
{ // the point was not added yet.
geoId = leafData.PointsX.Count;
//leafData.PointsIndexes.Add(geoId);
leafData.PointsX.Add((long)(scaleFactor * point.X));
leafData.PointsY.Add((long)(scaleFactor * point.Y));
addedPoint.Add(sceneObject.GeoId, geoId);
}
leafData.IconPointId.Add(geoId); // add point.
// add image id.
leafData.IconImageId.Add(sceneObject.StyleId);
break;
case SceneObjectType.PointObject:
// get point.
point = _scene.GetPoint(sceneObject.GeoId);
// set point data and keep id.
if (!addedPoint.TryGetValue(sceneObject.GeoId, out geoId))
{ // the point was not added yet.
geoId = leafData.PointsX.Count;
leafData.PointsX.Add((long)(scaleFactor * point.X));
leafData.PointsY.Add((long)(scaleFactor * point.Y));
//leafData.PointsIndexes.Add(leafData.PointsY.Count);
addedPoint.Add(sceneObject.GeoId, geoId);
}
leafData.PointPointId.Add(geoId);
// add point style.
leafData.PointStyleId.Add(sceneObject.StyleId);
break;
case SceneObjectType.TextObject:
// get point.
point = _scene.GetPoint(sceneObject.GeoId);
// set point data and keep id.
if (!addedPoint.TryGetValue(sceneObject.GeoId, out geoId))
{ // the point was not added yet.
geoId = leafData.PointsX.Count;
leafData.PointsX.Add((long)(scaleFactor * point.X));
leafData.PointsY.Add((long)(scaleFactor * point.Y));
//leafData.PointsIndexes.Add(leafData.PointsY.Count);
addedPoint.Add(sceneObject.GeoId, geoId);
}
leafData.TextPointPointId.Add(geoId);
// add point style.
leafData.TextPointStyleId.Add(sceneObject.StyleId);
// add text.
leafData.TextPointText.Add(
_scene.GetText((sceneObject as SceneTextObject).TextId));
break;
case SceneObjectType.LineObject:
// get points.
points = _scene.GetPoints(sceneObject.GeoId);
// set points data and keep id.
if (!addedPoints.TryGetValue(sceneObject.GeoId, out geoId))
{ // the point was not added yet.
geoId = leafData.PointsX.Count;
leafData.PointsX.AddRange(points.X.ConvertToLongArray(scaleFactor));
leafData.PointsY.AddRange(points.Y.ConvertToLongArray(scaleFactor));
//leafData.PointsIndexes.Add(leafData.PointsY.Count);
addedPoints.Add(sceneObject.GeoId, geoId);
}
leafData.LinePointsId.Add(geoId);
// add point style.
leafData.LineStyleId.Add(sceneObject.StyleId);
break;
case SceneObjectType.LineTextObject:
// get points.
points = _scene.GetPoints(sceneObject.GeoId);
// set points data and keep id.
if (!addedPoints.TryGetValue(sceneObject.GeoId, out geoId))
{ // the point was not added yet.
geoId = leafData.PointsX.Count;
leafData.PointsX.AddRange(points.X.ConvertToLongArray(scaleFactor));
leafData.PointsY.AddRange(points.Y.ConvertToLongArray(scaleFactor));
//leafData.PointsIndexes.Add(leafData.PointsY.Count);
addedPoints.Add(sceneObject.GeoId, geoId);
}
leafData.LineTextPointsId.Add(geoId);
// add point style.
leafData.LineTextStyleId.Add(sceneObject.StyleId);
// add text.
leafData.LineTextText.Add(
_scene.GetText((sceneObject as SceneLineTextObject).TextId));
break;
case SceneObjectType.PolygonObject:
// get points.
points = _scene.GetPoints(sceneObject.GeoId);
// set points data and keep id.
if (!addedPoints.TryGetValue(sceneObject.GeoId, out geoId))
{ // the point was not added yet.
geoId = leafData.PointsX.Count;
leafData.PointsX.AddRange(points.X.ConvertToLongArray(scaleFactor));
leafData.PointsY.AddRange(points.Y.ConvertToLongArray(scaleFactor));
//leafData.PointsIndexes.Add(leafData.PointsY.Count);
addedPoints.Add(sceneObject.GeoId, geoId);
}
leafData.PolygonPointsId.Add(geoId);
// add point style.
leafData.PolygonStyleId.Add(sceneObject.StyleId);
break;
}
}
// get the mins.
leafData.PointsXMin = leafData.PointsX.Min();
leafData.PointsYMin = leafData.PointsY.Min();
// encode.
for (int idx = 0; idx < leafData.PointsX.Count; idx++)
{
leafData.PointsX[idx] = leafData.PointsX[idx] - leafData.PointsXMin;
leafData.PointsY[idx] = leafData.PointsY[idx] - leafData.PointsYMin;
}
// serialize.
MemoryStream stream = new MemoryStream();
typeModel.Serialize(stream, leafData);
byte[] serializedData = stream.ToArray();
stream.Dispose();
if (_compressed)
{ // compress.
serializedData = GZipStream.CompressBuffer(serializedData);
}
return(serializedData);
}
