LICENSE

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README.md

@@ -7,7 +7,6 @@ A tool to display maps of lines as vector tiles using leaflet.
 
 * Tippecanoe 
 * ogrmerge (part of gdal-bin in Debian)
-* jq
 
 ## Usage
 
@@ -43,44 +42,6 @@ to be displayed on the map can be deposited in any format understood
 by [ogrmerge](https://gdal.org/programs/ogrmerge.html), for instance,
 GeoJSON or gpx. 
 
-#### layers.json
-
-The metadata for the layers to be rendered is given by the
-`layers.json` file in the input directory. An example layers.json file
-is given below:
-
-```json
-{
-	"name" : "My map", 
-	"tilelayer" : {
-		"attribution" : "Map data ©  <a href=\"http://osm.org/copyright\" >OpenStreetMap contributors</a>",
-		"url_template" : "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
-	},
-   	"layers": {
-		"tram": {"color": "red", "width": 1.5, "humanname": "Tram"},
-		"train": {"color": "blue", "width": 2, "humanname": "Train"}
-	},
-	"maxZoom": 12
-}
-```
-
-The `name` attribute sets the title of the map. The `tilelayer` sets
-the background tile layer to be displayed (currently only raster tiles
-are supported), with `attribution` stating where the tiles came from,
-while `url_template` tells leaflet where to look for the tiles. 
-
-The `layers` object includes an entry for each layer, indexed by the
-name that each layer has in the `strecken.pmtiles` file (use the
-[PMTiles Viewer](https://pmtiles.io/) for troubleshooting), with
-`color` and `width` specifying how the layer should be rendered, and
-`humanname` being the layer name that should be displayed in the legend.
-
-The `maxZoom` parameter is given to `tippecanoe`, and determines the
-maximum zoom level for which tiles should be rendered, increasing this
-value also increases the size of the `strecken.pmtiles` file. If not
-given explicitly `maxZoom` defaults to 10.
-
-
 ## Troubleshooting
 
 ### My pmtiles file is huge (hundreds of megabytes)
@@ -96,3 +57,5 @@ jq 'del( .features[] .properties )'
 ```
 
 on the input file with excessive metadata. 
+
+

frontend/map.js

@@ -11,6 +11,15 @@ legend.onAdd = function (map) {
 };
 
 
+var strecken = protomapsL.leafletLayer({
+    url: "strecken.pmtiles",
+		maxDataZoom: 10,
+		maxZoom: 19,
+    paintRules: rules,
+		
+});
+
+
 const map = L.map("map", {  center: [52,13], zoom: 3, minZoom: 0 });
 fetch("layers.json")
 		.then((response) => response.json())
@@ -31,24 +40,8 @@ fetch("layers.json")
 								maxZoom: 19,
 								attribution: tiles["attribution"]
 						}
-				);
+				)
-				var strecken = protomapsL.leafletLayer({
-						url: "strecken.pmtiles",
-						maxDataZoom: data["maxZoom"] ?? 10,
-						maxZoom: 19,
-						paintRules: rules,	
-				});
-
 				osm.addTo(map);
 				legend.addTo(map);
 				strecken.addTo(map);
 		})
-
-function resize() {
-	document.getElementById("map").style.height = window.innerHeight + 'px';
-}
-resize();
-window.addEventListener('resize', () => {
-	resize();
-});
-

scripts/mapbuilder.sh

@@ -3,7 +3,6 @@
 
 
 temp=$(mktemp -d)
-zoom=$(jq '.maxZoom // 10' "$1/layers.json")
 
 mkdir "$temp/data"
 for i in "$1/data/"*
@@ -12,7 +11,7 @@ do
 done
 
 
-tippecanoe -aN -z"$zoom" -o "$temp/strecken.pmtiles" $temp/*.json
+tippecanoe -aN -z10 -o "$temp/strecken.pmtiles" $temp/*.json
 
 mv $temp/strecken.pmtiles "$2"