points-3d-to-2d - npm Package Compare versions

Comparing version 0.1.1 to 0.1.2

index.js

@@ -14,6 +14,25 @@ var _ = require("lodash");
 
-  var p0 = $V(points3d[0]);
-  var p1 = $V(points3d[1]);
-  var p2 = $V(points3d[2]);
+  var p0, p1, p2;
+  var collinearThreshold = 0.01;
 
+  // Find first sequence of points that aren't collinear
+  _.each(points3d, function(point, pIndex) {
+    // Exit if no more points are available
+    if (pIndex === points3d.length - 2) {
+      return false;
+    }
+
+    p0 = $V(point);
+    p1 = $V(points3d[pIndex+1]);
+    p2 = $V(points3d[pIndex+2]);
+
+    // Colinear or near-colinear?
+    var cross = p0.subtract(p1).cross(p0.subtract(p2));
+
+    // Exit if non-collinear points are found
+    if (Math.abs(cross.e(1)) > collinearThreshold || Math.abs(cross.e(2)) > collinearThreshold || Math.abs(cross.e(3)) > collinearThreshold) {
+      return false;
+    }
+  });
+
   var locOrigin = (parent.origin) ? parent.origin : p0.dup();
@@ -20,0 +39,0 @@ var locX = (parent.locX) ? parent.locX : p1.subtract(locOrigin);

package.json

 {
   "name": "points-3d-to-2d",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "Project 3D points onto a 2D plane",
@@ -5,0 +5,0 @@ "main": "index.js",

No alert changes

Improved metrics

Total package byte prevSize

5329

increased by12.26%

Lines of code

63

increased by31.25%

No dependency changes