reproject-bbox - npm Package Compare versions

Comparing version 0.9.0 to 0.10.0

package.json

 {
   "name": "reproject-bbox",
-  "version": "0.9.0",
+  "version": "0.10.0",
   "description": "Reproject a Bounding Box",
@@ -50,3 +50,3 @@ "main": "reproject-bbox.js",
   "devDependencies": {
-    "flug": "^2.5.0"
+    "flug": "^2.6.0"
   },
@@ -53,0 +53,0 @@ "dependencies": {

README.md

@@ -28,2 +28,17 @@ # reproject-bbox
 # advanced usage
+## well-known text
+Because reproject-bbox passes the `from` and `to` parameters to [proj4js](http://proj4js.org/) and proj4js supports
+[Well-Known Text](https://en.wikipedia.org/wiki/Well-known_text_representation_of_coordinate_reference_systems),
+you can also pass WKT strings and Proj4JS strings in place of EPSG Codes.
+```js
+import reprojectBoundingBox from "reproject-bbox";
+
+// example WKT and PROJ4 Strings from http://proj4js.org/
+reprojectBoundingBox({
+  bbox,
+  from: 'PROJCS["NAD83 / Massachusetts Mainland",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["standard_parallel_1",42.68333333333333],PARAMETER["standard_parallel_2",41.71666666666667],PARAMETER["latitude_of_origin",41],PARAMETER["central_meridian",-71.5],PARAMETER["false_easting",200000],PARAMETER["false_northing",750000],AUTHORITY["EPSG","26986"],AXIS["X",EAST],AXIS["Y",NORTH]]',
+  to: "+proj=gnom +lat_0=90 +lon_0=0 +x_0=6300000 +y_0=6300000 +ellps=WGS84 +datum=WGS84 +units=m +no_defs"
+});
+```
+
 ## density
@@ -30,0 +45,0 @@ You can increase the accuracy of your reprojected bounding box by increasing the point density.

reproject-bbox.js

@@ -9,3 +9,9 @@ const merge = require("proj4-merge");
 
+const CUSTOM_PROJECTION_ERROR =
+  "[reproject-bbox] You passed in a value of 32767 for {{%s}}, which means a custom non-standard projection.  Please pass in a Well-Known Text or PROJ4JS String instead.";
+
 function reprojectBoundingBox({ bbox, density, from, proj4: _proj4, to }) {
+  if (from === 32767) throw new Error(CUSTOM_PROJECTION_ERROR.replace("{{%s}}", "from"));
+  if (to === 32767) throw new Error(CUSTOM_PROJECTION_ERROR.replace("{{%s}}", "to"));
+
   if (typeof from === "number") from = "EPSG:" + from;
@@ -12,0 +18,0 @@ if (typeof to === "number") to = "EPSG:" + to;

No alert changes

Improved metrics

Total package byte prevSize

423383

increased by0.49%

Lines of code

7487

increased by0.11%

Number of lines in readme file

76

increased by24.59%

No dependency changes