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  • wander/vectortile
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with 51 additions and 7 deletions
Runtime/VectorTile.cs
View file @ 90365b35
using GluonGui.WorkspaceWindow.Views.WorkspaceExplorer.Configuration;
using Mapbox.Vector.Tile;
using System;
using System.Collections.Generic;
......@@ -193,6 +192,13 @@ namespace Wander
return numFailedPolys;
}
bool IsPolygonLayerWater( int layerIdx, int featureIdx, int waterLayerIdx )
{
var layer = layers[layerIdx];
var feature = layer.VectorTileFeatures[featureIdx];
return feature.SelectedLayerIdx==waterLayerIdx;
}
bool DoesPolygonLayerQualify( int layerIdx, int featureIdx )
{
var layer = layers[layerIdx];
......@@ -351,6 +357,37 @@ namespace Wander
layersIdentified = true;
}
public List<List<TriangulatedPolygon>> GetWaterPolygons( int waterLayerIdx, ref bool cancelToken )
{
UnityEngine.Debug.Assert( triangulated, "First call Triangulate." );
UnityEngine.Debug.Assert( layersIdentified, "Identify layers first." );
Stopwatch sw = new Stopwatch();
sw.Restart();
var waters = new List<List<TriangulatedPolygon>>();
for (int l = 0;l < polygonLayers.Count;l++)
{
var layer = layers[l];
var water = new List<TriangulatedPolygon>();
for (int f = 0;f < layer.VectorTileFeatures.Count && !cancelToken ;f++)
{
if (DoesPolygonLayerQualify( l, f ) && IsPolygonLayerWater(l, f, waterLayerIdx))
{
var poly = polygonLayers[l][f];
water.Add( poly );
}
}
if (water.Count> 0)
{
waters.Add( water );
}
}
return waters;
}
// Generates a raster for each position (pixel). 2 pixels are pushed in 1 (each 16 bit).
// If no polygon was hit, 15 is encoded (reserved).
// If polygon was hit, but no feature was matched, also 15 is encoded.
......@@ -371,6 +408,8 @@ namespace Wander
UnityEngine.Debug.Assert( resolution > 1, "Must be at least 2." );
byte [] texture = new byte[resolution*resolution/2];
bool [] written = new bool[resolution*resolution];
int d = 4096 / resolution;
int shift = -1;
while (d!=0)
......@@ -393,6 +432,7 @@ namespace Wander
{
var min = poly.mins[t];
var max = poly.maxs[t];
int x1 = Mathf.FloorToInt( min.x );
int y1 = Mathf.FloorToInt( min.y );
int x2 = Mathf.FloorToInt( max.x );
......@@ -425,11 +465,14 @@ namespace Wander
if (PointInTriangle( new Vector2( xk2, yk2 ), poly.vertices[i], poly.vertices[i+1], poly.vertices[i+2] ))
{
var addr2 = (resolution - y -1)*resolution+x;
//var addr2 = (resolution* y)+x;
if (layerIdx > 15)
layerIdx = 15; // max layers 15 (15 is reserved, nothing was hit).
var shift2 = (addr2&1) << 2;
texture[addr2>>1] |= (byte)(layerIdx << shift2);
if (!written[addr2])
{
written[addr2]=true;
if (layerIdx > 15)
layerIdx = 15; // max layers 15 (15 is reserved, nothing was hit).
var shift2 = (addr2&1) << 2;
texture[addr2>>1] |= (byte)(layerIdx << shift2);
}
}
}
}
......@@ -563,8 +606,9 @@ namespace Wander
{
if ((x&1) == 0)
pixel = texture[addr>>1];
UnityEngine.Debug.Assert( (pixel&0xF) < 10 && ((pixel>>4)&0xF) < 10 );
byte shift = (byte)((addr&1));
byte pixel2 = (byte)((pixel >> (shift<<2)) & 15);
byte pixel2 = (byte)((pixel >> (shift<<2)) & 0xF);
if (pixel2 != 15)
{
if (pixel2 != cachedPixel)
......