ctucx.git: oeffisearch

canvas: fix rendering of RJ labels

diff --git a/client/js/canvas.js b/client/js/canvas.js
@@ -89,7 +89,7 @@ const addTextToCache = (text, color, fixedHeight) => {
 	}
 
 	canvas.width = width * dpr;
-	canvas.height = (Math.ceil(height) + 1) * dpr;
+	canvas.height = Math.ceil(height * 1.5) * dpr;
 	ctx.scale(dpr, dpr);
 
 	ctx.font = `${height}px sans-serif`;

@@ -212,7 +212,7 @@ const renderJourneys = () => {
 			let preRenderedText = textCache[textFor(leg)];
 			if ((preRenderedText.height / dpr) < duration - 5) {
 				ctx.scale(1 / dpr, 1 / dpr);
-				ctx.drawImage(preRenderedText, dpr * (x + 5), Math.floor(dpr * (y + duration / 2) - preRenderedText.height / 1.5));
+				ctx.drawImage(preRenderedText, dpr * (x + 5), Math.floor(dpr * (y + duration / 2) - preRenderedText.height / 2.3));
 				ctx.scale(dpr, dpr);
 			}