shapefile - npm Package Compare versions

Comparing version 0.0.2 to 0.0.3

dbf.js

@@ -57,3 +57,3 @@ var file = require("./file");
   C: fieldString,
-  D: fieldString,
+  D: fieldDate,
   F: fieldNumber,
@@ -66,3 +66,3 @@ L: fieldBoolean,
 function fieldNumber(d) {
-  return +d;
+  return isNaN(d = +d) ? null : d;
 }
@@ -74,4 +74,10 @@
 
+function fieldDate(d) {
+  return new Date(+d.substring(0, 4), d.substring(4, 6) - 1, +d.substring(6, 8));
+}
+
 function fieldBoolean(d) {
-  return d === "T";
+  return /^[nf]$/i.test(d) ? false
+      : /^[yt]$/i.test(d) ? true
+      : null;
 }
@@ -78,0 +84,0 @@

package.json

 {
   "name": "shapefile",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "An implementation of the shapefile (.shp) spatial data format.",
@@ -17,3 +17,11 @@ "keywords": [
   },
-  "main": "./index.js"
+  "main": "./index.js",
+  "devDependencies": {
+    "vows": "0.7.x"
+  },
+  "bin": {
+    "dbfcat": "./bin/dbfcat",
+    "shpcat": "./bin/shpcat",
+    "shp2json": "./bin/shp2json"
+  }
 }

README.md

 # Streaming Shapefile Parser
 
 Based on the [ESRI Shapefile Technical Description](http://www.esri.com/library/whitepapers/pdfs/shapefile.pdf) and [dBASE Table File Format](http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml).
+
+Caveat emptor: this library is a work in progress and does not currently support all shapefile geometry types (see [shp.js](https://github.com/mbostock/shapefile/blob/master/shp.js) for details). It also only supports dBASE III and has no error checking. Please contribute if you want to help!
+
+## Reading a Shapefile
+
+The main API for reading a shapefile is shapefile.readStream. This returns an [event emitter](http://nodejs.org/api/events.html) which emits three types of events:
+
+* *feature* - while reading features from the shapefile
+* *end* - when all features have been read
+* *error* - if an error occurs
+
+Features are emitted as [GeoJSON features](http://geojson.org/geojson-spec.html#feature-objects), not as shapefile primitives. That’s because GeoJSON objects are the standard representation of geometry in JavaScript, and they are convenient. If you want to access the shapefile primitives directly, use the private [shp](https://github.com/mbostock/shapefile/blob/master/shp.js) and [dbf](https://github.com/mbostock/shapefile/blob/master/dbf.js) classes instead.
+
+See [index-test](https://github.com/mbostock/shapefile/blob/master/index-test) for an example converting a shapefile to a GeoJSON feature collection.

shp.js

@@ -18,10 +18,7 @@ var file = require("./file");
       shapeType: shapeType = fileHeader.readInt32LE(32),
-      xMin: fileHeader.readDoubleLE(36),
-      xMax: fileHeader.readDoubleLE(52),
-      yMin: fileHeader.readDoubleLE(44),
-      yMax: fileHeader.readDoubleLE(60),
-      zMin: fileHeader.readDoubleLE(68),
-      zMax: fileHeader.readDoubleLE(76),
-      mMin: fileHeader.readDoubleLE(84),
-      mMax: fileHeader.readDoubleLE(92)
+      box: [fileHeader.readDoubleLE(36), fileHeader.readDoubleLE(44), fileHeader.readDoubleLE(52), fileHeader.readDoubleLE(60)]
+      // TODO zMin: fileHeader.readDoubleLE(68)
+      // TODO zMax: fileHeader.readDoubleLE(76)
+      // TODO mMin: fileHeader.readDoubleLE(84)
+      // TODO mMax: fileHeader.readDoubleLE(92)
     });
@@ -35,4 +32,4 @@ readShapeType = readShape[shapeType];
     read(recordHeader.readInt32BE(4) * 2, function readRecord(record) {
-      // TODO verify var shapeType = record.readInt32LE(0);
-      stream.emit("record", readShapeType(record));
+      var shapeType = record.readInt32LE(0);
+      stream.emit("record", shapeType ? readShapeType(record) : null);
       read(8, readRecordHeader);
@@ -39,0 +36,0 @@ });

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Native code

Supply chain risk

Contains native code (e.g., compiled binaries or shared libraries). Including native code can obscure malicious behavior.

Found 22 instances in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Native code

Supply chain risk

Contains native code (e.g., compiled binaries or shared libraries). Including native code can obscure malicious behavior.

Found 3 instances in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Number of package files

63

increased by320%

Number of lines in readme file

18

increased by350%

Worsened metrics

Total package byte prevSize

34142

decreased by-94.85%

Dev dependency count

1

increased byInfinity%

Lines of code

623

decreased by-70.57%

Number of medium supply chain risk alerts

24

increased by380%

No dependency changes