feat: color test tiles black to see flaws

linz · Oct 7, 2019 · 9c635be · 9c635be
1 parent e1ce06d
commit 9c635be
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Showing 8 changed files with 6 additions and 3 deletions.
diff --git a/packages/tiler/data/expected/tile_1024_262144_262144_z19.png b/packages/tiler/data/expected/tile_1024_262144_262144_z19.png
diff --git a/packages/tiler/data/expected/tile_2048_262144_262144_z19.png b/packages/tiler/data/expected/tile_2048_262144_262144_z19.png
diff --git a/packages/tiler/data/expected/tile_256_131072_131072_z18.png b/packages/tiler/data/expected/tile_256_131072_131072_z18.png
diff --git a/packages/tiler/data/expected/tile_256_262144_262144_z19.png b/packages/tiler/data/expected/tile_256_262144_262144_z19.png
diff --git a/packages/tiler/data/expected/tile_4096_262144_262144_z19.png b/packages/tiler/data/expected/tile_4096_262144_262144_z19.png
diff --git a/packages/tiler/data/expected/tile_512_262144_262144_z19.png b/packages/tiler/data/expected/tile_512_262144_262144_z19.png
diff --git a/packages/tiler/src/__test__/tile.creation.test.ts b/packages/tiler/src/__test__/tile.creation.test.ts
@@ -55,10 +55,11 @@ describe('TileCreation', () => {
     ].forEach(({ tileSize, zoom }) => {
         it(`should render a tile zoom:${zoom} tile: ${tileSize}`, async () => {
             const center = 2 ** zoom;
-
             const centerTile = center / 2;
-
             const tiler = new Tiler(tileSize);
+
+            // Make the background black to easily spot flaws
+            tiler.raster.background.alpha = 1;
             const layers = await tiler.tile([tiff], centerTile, centerTile, zoom, Logger);
             expect(layers).not.toEqual(null);
             if (layers == null) throw new Error('Tile is null');

diff --git a/packages/tiler/src/raster.ts b/packages/tiler/src/raster.ts
@@ -23,6 +23,8 @@ const SharpScaleOptions = { fit: Sharp.fit.cover };
 
 export class Raster {
     private tileSize: number;
+    /** The background of all tiles that are created */
+    public background = { r: 0, g: 0, b: 0, alpha: 0 };
 
     public constructor(tileSize: number) {
         this.tileSize = tileSize;
@@ -90,7 +92,7 @@ export class Raster {
                 width: this.tileSize,
                 height: this.tileSize,
                 channels: 4,
-                background: { r: 0, g: 0, b: 0, alpha: 0 },
+                background: this.background,
             },
         });
     }