private List <TracedVertex> IntersectWithRectangle(MapRectangle mapWindow)
{
RenderDebug renderDebug = IntersectWithRectangleDebug(mapWindow);
return(renderDebug.FinalClipRegion);
}
public RenderDebug IntersectWithRectangleDebug(MapRectangle mapWindow)
{
RenderDebug renderDebug = new RenderDebug();
renderDebug.IntersectedVertexList = new List <TracedVertex>();
List <TracedVertex> list = new List <TracedVertex>();
int num = 0;
foreach (LatLon current in vertexList)
{
list.Add(new TracedVertex(num, current));
num++;
}
TracedVertex tracedVertex = list[list.Count - 1];
foreach (TracedVertex current2 in list)
{
ParametricLine parametricLine = new ParametricLine(tracedVertex.position, current2.position);
List <ParametricLine.Intersection> list2 = new List <ParametricLine.Intersection>();
list2.Add(parametricLine.LatitudeIntersection(mapWindow.lat0));
list2.Add(parametricLine.LatitudeIntersection(mapWindow.lat1));
list2.Add(parametricLine.LongitudeIntersection(mapWindow.lon0));
list2.Add(parametricLine.LongitudeIntersection(mapWindow.lon1));
list2.Sort();
foreach (ParametricLine.Intersection current3 in list2)
{
if (!current3.IsParallel && current3.t > 0.0 && current3.t < 1.0)
{
LatLon position = parametricLine.t(current3.t);
renderDebug.IntersectedVertexList.Add(new TracedVertex(tracedVertex.originalIndex, position));
}
}
renderDebug.IntersectedVertexList.Add(current2);
tracedVertex = current2;
}
double val;
double val2;
if (mapWindow.lat1 > mapWindow.lat0)
{
val = mapWindow.lat0;
val2 = mapWindow.lat1;
}
else
{
val = mapWindow.lat1;
val2 = mapWindow.lat0;
}
double val3;
double val4;
if (mapWindow.lon1 > mapWindow.lon0)
{
val3 = mapWindow.lon0;
val4 = mapWindow.lon1;
}
else
{
val3 = mapWindow.lon1;
val4 = mapWindow.lon0;
}
renderDebug.FinalClipRegion = new List <TracedVertex>();
tracedVertex = null;
foreach (TracedVertex current4 in renderDebug.IntersectedVertexList)
{
LatLon position2 = current4.position;
LatLon position3 = new LatLon(Math.Max(val, Math.Min(position2.lat, val2)),
Math.Max(val3, Math.Min(position2.lon, val4)));
TracedVertex tracedVertex2 = new TracedVertex(current4.originalIndex, position3);
if (tracedVertex == null || tracedVertex.position.lat != tracedVertex2.position.lat ||
tracedVertex.position.lon != tracedVertex2.position.lon)
{
renderDebug.FinalClipRegion.Add(tracedVertex2);
}
tracedVertex = tracedVertex2;
}
return(renderDebug);
}
public RenderDebug IntersectWithRectangleDebug(MapRectangle mapWindow)
{
RenderDebug renderDebug = new RenderDebug();
renderDebug.IntersectedVertexList = new List<TracedVertex>();
List<TracedVertex> list = new List<TracedVertex>();
int num = 0;
foreach (LatLon current in this.vertexList)
{
list.Add(new TracedVertex(num, current));
num++;
}
TracedVertex tracedVertex = list[list.Count - 1];
foreach (TracedVertex current2 in list)
{
ParametricLine parametricLine = new ParametricLine(tracedVertex.position, current2.position);
List<ParametricLine.Intersection> list2 = new List<ParametricLine.Intersection>();
list2.Add(parametricLine.LatitudeIntersection(mapWindow.lat0));
list2.Add(parametricLine.LatitudeIntersection(mapWindow.lat1));
list2.Add(parametricLine.LongitudeIntersection(mapWindow.lon0));
list2.Add(parametricLine.LongitudeIntersection(mapWindow.lon1));
list2.Sort();
foreach (ParametricLine.Intersection current3 in list2)
{
if (!current3.IsParallel && current3.t > 0.0 && current3.t < 1.0)
{
LatLon position = parametricLine.t(current3.t);
renderDebug.IntersectedVertexList.Add(new TracedVertex(tracedVertex.originalIndex, position));
}
}
renderDebug.IntersectedVertexList.Add(current2);
tracedVertex = current2;
}
double val;
double val2;
if (mapWindow.lat1 > mapWindow.lat0)
{
val = mapWindow.lat0;
val2 = mapWindow.lat1;
}
else
{
val = mapWindow.lat1;
val2 = mapWindow.lat0;
}
double val3;
double val4;
if (mapWindow.lon1 > mapWindow.lon0)
{
val3 = mapWindow.lon0;
val4 = mapWindow.lon1;
}
else
{
val3 = mapWindow.lon1;
val4 = mapWindow.lon0;
}
renderDebug.FinalClipRegion = new List<TracedVertex>();
tracedVertex = null;
foreach (TracedVertex current4 in renderDebug.IntersectedVertexList)
{
LatLon position2 = current4.position;
LatLon position3 = new LatLon(Math.Max(val, Math.Min(position2.lat, val2)), Math.Max(val3, Math.Min(position2.lon, val4)));
TracedVertex tracedVertex2 = new TracedVertex(current4.originalIndex, position3);
if (tracedVertex == null || tracedVertex.position.lat != tracedVertex2.position.lat || tracedVertex.position.lon != tracedVertex2.position.lon)
{
renderDebug.FinalClipRegion.Add(tracedVertex2);
}
tracedVertex = tracedVertex2;
}
return renderDebug;
}