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More code clean up in Renderer

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This commit is contained in:
Christian Paul 2017-12-23 00:49:37 -08:00
parent 0c27a79ad6
commit 0353effa67
1 changed files with 21 additions and 19 deletions
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34
src/Renderer.js
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@ -57,10 +57,10 @@ class Renderer {
}).map((tile) => {
return this._getTileFeatures(tile, zoom);
}).then((tiles) => {
return this._renderTiles(tiles);
this._renderTiles(tiles);
}).then(() => {
return this._getFrame();
}).catch(function(e) {
}).catch((e) => {
return console.log(e);
}).finally((frame) => {
this.isDrawing = false;
@ -98,8 +98,8 @@ class Renderer {
tiles.push({
xyz: tile,
zoom: zoom,
position: position,
zoom,
position,
size: tileSize,
});
}
@ -159,7 +159,7 @@ class Renderer {
// drawn[feature.id] = true
if (layerId.match(/label/)) {
labels.push({
tile: tile,
tile,
feature: feature,
scale: layer.scale
});
@ -169,14 +169,12 @@ class Renderer {
}
}
}
labels.sort(function(a, b) {
labels.sort((a, b) => {
return a.feature.sorty - b.feature.sort;
});
const results = [];
for (const label of labels) {
results.push(this._drawFeature(label.tile, label.feature, label.scale));
this._drawFeature(label.tile, label.feature, label.scale);
}
return results;
}
_getFrame() {
@ -194,7 +192,7 @@ class Renderer {
}
_drawFeature(tile, feature, scale) {
let points, placed, genericSymbol;
let points, placed;
if (feature.style.minzoom && tile.zoom < feature.style.minzoom) {
return false;
} else if (feature.style.maxzoom && tile.zoom > feature.style.maxzoom) {
@ -222,28 +220,32 @@ class Renderer {
break;
}
case 'symbol': {
const text = feature.label || (genericSymbol = config.poiMarker);
const genericSymbol = config.poiMarker;
const text = feature.label || config.poiMarker;
if (this._seen[text] && !genericSymbol) {
return false;
}
placed = false;
const points2 = this._scaleAndReduce(tile, feature, feature.points, scale);
for (const point of points2) {
let ref1, ref2;
const pointsOfInterest = this._scaleAndReduce(tile, feature, feature.points, scale);
for (const point of pointsOfInterest) {
const x = point.x - text.length;
const margin = ((ref1 = config.layers[feature.layer]) != null ? ref1.margin : void 0) || config.labelMargin;
const layerMargin = (config.layers[feature.layer] || {}).margin;
const margin = layerMargin || config.labelMargin;
if (this.labelBuffer.writeIfPossible(text, x, point.y, feature, margin)) {
this.canvas.text(text, x, point.y, feature.color);
placed = true;
break;
} else if (((ref2 = config.layers[feature.layer]) != null ? ref2.cluster : void 0) && this.labelBuffer.writeIfPossible(config.poiMarker, point.x, point.y, feature, 3)) {
} else {
const cluster = (config.layers[feature.layer] || {}).cluster;
if (cluster && this.labelBuffer.writeIfPossible(config.poiMarker, point.x, point.y, feature, 3)) {
this.canvas.text(config.poiMarker, point.x, point.y, feature.color);
placed = true;
break;
}
}
}
if (placed) {
this._seen[text] = true;
}