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Added Area-render (Renders all loaded nodes and edges)

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Route can now be drawn over other pictures (e.g. the area-render)
Increased resolution to 20.000
Added Bounds-Class for information exchange with image.
This commit is contained in:
glax 2023-04-19 22:53:49 +02:00
parent 208c000577
commit bfb117164e
1 changed files with 97 additions and 16 deletions
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113
RenderPath/Renderer.cs
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@ -7,10 +7,26 @@ using Pathfinding;
namespace RenderPath;
public class Renderer
public static class Renderer
{
private const int ImageMaxSize = 20000;
private const float PenThickness = 4;
public static void DrawGraph(string resultPath)
public class Bounds
{
public readonly float minLat, maxLat, minLon, maxLon;
public Bounds(float minLat, float minLon, float maxLat, float maxLon)
{
this.minLon = minLon;
this.maxLat = maxLat;
this.maxLon = maxLon;
this.minLat = minLat;
}
}
[SuppressMessage("Interoperability", "CA1416:Plattformkompatibilität überprüfen")]
public static void DrawGraph(string resultPath, Image? area = null, Bounds? bounds = null)
{
FileStream fs = new FileStream(resultPath, FileMode.Open);
PathResult graph = JsonSerializer.Deserialize<PathResult>(fs)!;
@ -19,32 +35,92 @@ public class Renderer
coords.Add(node.coordinates);
string workingDir = new DirectoryInfo(resultPath).FullName;
DrawLoadedNodes(graph.nodes!, graph.gScore!, coords, workingDir);
Image renderedImage = DrawLoadedNodes(graph.gScoreNodes!, graph.gScore!, coords, area, bounds);
renderedImage.Save($"{workingDir}-routing.png");
}
[SuppressMessage("Interoperability", "CA1416:Plattformkompatibilität überprüfen")]
public static void DrawLoadedNodes(HashSet<OsmNode> nodes, Dictionary<ulong, double> gScoreDict, List<Coordinates> pathCoordinates, string workingDir)
public static ValueTuple<Image, Bounds> DrawArea(RegionManager rm)
{
HashSet<OsmNode> nodes = new HashSet<OsmNode>();
foreach (OSMDatastructure.Region r in rm.GetAllRegions())
nodes = nodes.Concat(r.nodes).ToHashSet();
float minLat = nodes.Min(node => node.coordinates.latitude);
float minLon = nodes.Min(node => node.coordinates.longitude);
float maxLat = nodes.Max(node => node.coordinates.latitude);
float maxLon = nodes.Max(node => node.coordinates.longitude);
float latDiff = maxLat - minLat;
float lonDiff = maxLon - minLon;
float scaleFactor = latDiff > lonDiff ? ImageMaxSize / latDiff : ImageMaxSize / lonDiff;
int pixelsX = (int)(lonDiff * scaleFactor);
int pixelsY = (int)(latDiff * scaleFactor);
Image ret = new Bitmap(pixelsX, pixelsY, PixelFormat.Format32bppRgb);
Graphics g = Graphics.FromImage(ret);
g.Clear(Color.White);
Color start = Color.FromArgb(255, 25, 25, 25);
Color center = Color.FromArgb(255, 0, 0, 0);
Color end = Color.FromArgb(255, 0, 255, 0);
foreach (OsmNode node in nodes)
{
foreach (OsmEdge edge in node.edges)
{
Coordinates c1 = node.coordinates;
OsmNode nNode = rm.GetNode(edge.neighborId, edge.neighborRegion)!;
Coordinates c2 = nNode.coordinates;
Pen p = new Pen(GradientPick(0, start, center, end), PenThickness);
float x1 = (c1.longitude - minLon) * scaleFactor;
float y1 = (maxLat - c1.latitude) * scaleFactor;
float x2 = (c2.longitude - minLon) * scaleFactor;
float y2 = (maxLat - c2.latitude) * scaleFactor;
g.DrawLine(p, x1, y1, x2, y2);
}
}
return new ValueTuple<Image, Bounds>(ret, new Bounds(minLat,minLon,maxLat,maxLon));
}
[SuppressMessage("Interoperability", "CA1416:Plattformkompatibilität überprüfen")]
public static Image DrawLoadedNodes(HashSet<OsmNode> nodes, Dictionary<ulong, double> gScoreDict,
List<Coordinates> pathCoordinates, Image? renderOver = null, Bounds? bounds = null)
{
float minLat = bounds?.minLat ?? nodes.Min(node => node.coordinates.latitude);
float minLon = bounds?.minLon ?? nodes.Min(node => node.coordinates.longitude);
float maxLat = bounds?.maxLat ?? nodes.Max(node => node.coordinates.latitude);
float maxLon = bounds?.maxLon ?? nodes.Max(node => node.coordinates.longitude);
double minWeight = gScoreDict.Min(kv => kv.Value);
double maxWeight = gScoreDict.Max(kv => kv.Value);
float latDiff = maxLat - minLat;
float lonDiff = maxLon - minLon;
const int imageMaxSize = 10000;
float scaleFactor = latDiff > lonDiff ? imageMaxSize / latDiff : imageMaxSize / lonDiff;
float scaleFactor = latDiff > lonDiff ? ImageMaxSize / latDiff : ImageMaxSize / lonDiff;
int pixelsX = (int)(lonDiff * scaleFactor);
int pixelsY = (int)(latDiff * scaleFactor);
Bitmap ret = new Bitmap(pixelsX, pixelsY, PixelFormat.Format32bppRgb);
Graphics g = Graphics.FromImage(ret);
g.Clear(Color.White);
Image ret;
Graphics g;
if (renderOver is null)
{
ret = new Bitmap(pixelsX, pixelsY, PixelFormat.Format32bppRgb);
g = Graphics.FromImage(ret);
g.Clear(Color.White);
}
else
{
ret = renderOver;
g = Graphics.FromImage(ret);
}
Color start = Color.FromArgb(0, 0, 255);
Color center = Color.FromArgb(255, 255, 0);
@ -58,21 +134,26 @@ public class Renderer
float x = (node.coordinates.longitude - minLon) * scaleFactor;
float y = (maxLat - node.coordinates.latitude) * scaleFactor;
g.FillEllipse(b, x, y, 2, 2);
x -= (PenThickness * 1.5f) / 2;
y -= (PenThickness * 1.5f) / 2;
g.FillEllipse(b, x, y, PenThickness * 1.5f, PenThickness * 1.5f);
}
Pen p = new Pen(Color.Red, 2);
Pen p = new Pen(Color.Red, PenThickness);
for (int i = 0; i < pathCoordinates.Count - 1; i++)
{
Coordinates c1 = pathCoordinates[i];
Coordinates c2 = pathCoordinates[i+1];
Point p1 = new(Convert.ToInt32((c1.longitude - minLon) * scaleFactor), Convert.ToInt32((maxLat - c1.latitude) * scaleFactor));
Point p2 = new(Convert.ToInt32((c2.longitude - minLon) * scaleFactor), Convert.ToInt32((maxLat - c2.latitude) * scaleFactor));
Coordinates c2 = pathCoordinates[i + 1];
Point p1 = new(Convert.ToInt32((c1.longitude - minLon) * scaleFactor),
Convert.ToInt32((maxLat - c1.latitude) * scaleFactor));
Point p2 = new(Convert.ToInt32((c2.longitude - minLon) * scaleFactor),
Convert.ToInt32((maxLat - c2.latitude) * scaleFactor));
g.DrawLine(p, p1, p2);
}
ret.Save($"{workingDir}-routing.png", ImageFormat.Bmp);
return ret;
}
/*