isolate tests that showcase use of round

Author: PhilDeOrsey

test/boolean-test.ts

@@ -60,34 +60,16 @@ tape('intersections', (test) => {
   test.equal(r2.length, 1);
 
   // Minimally overlapping triangles
+  // If useRound is false this produces a zero segment error!
   const t1 = new Polygon(new Point(630.64, 783.64), new Point(655.64, 826.941270189222), new Point(680.64, 783.64));
   const t2 = new Polygon(new Point(630.64, 783.6412701892219), new Point(655.64, 740.34), new Point(680.64, 783.6412701892219));
   const i1 = Polygon.intersection([t1, t2], undefined, true);
   test.equal(i1.length, 0);
 
-  // Minimally overlapping rhombus
-  const rhom1 = new Polygon(new Point(364.20573225037634, 762.5778998441511), new Point(393.594994865, 803.0287495628985), new Point(347.91772198287, 782.6919174091084), new Point(318.52845936824633, 742.2410676903611));
-  const rhom2 = new Polygon(new Point(350.29712442218573, 828.024401212054), new Point(300.29712442218573, 828.024401212054), new Point(343.5983946114076, 803.024401212054), new Point(393.5983946114076, 803.024401212054));
-  const i2 = Polygon.intersection([rhom1, rhom2], undefined, true);
-  test.equal(i2[0].area < .1, true);
-
-  // Mostly overlapping rhombus
-  const rhom3 = new Polygon(new Point(391.08895330967306, 854.8726448020227), new Point(393.7057511218203, 804.941168064294), new Point(416.40527610879764, 849.4914942737123), new Point(413.7884782966504, 899.4229710114411));
-  const rhom4 = new Polygon(new Point(390.9815967992604, 852.9558779497828), new Point(393.5983946114076, 803.024401212054), new Point(416.29791959838496, 847.5747274214724), new Point(413.6811217862377, 897.5062041592012));
-  const i3 = Polygon.intersection([rhom3, rhom4], undefined, true);
-  test.equal(i3.length, 1);
-
   test.end();
 });
 
 tape('unions', (test) => {
-  // In some configurations this throws a zero segment error.
-  const u1 = new Polygon(new Point(1622.9, 534.7), new Point(1522.9, 534.7), new Point(1547.9, 578), new Point(1597.9, 578));
-  const u2 = new Polygon(new Point(1398.71, 552.1512701892219), new Point(1448.71, 552.1512701892219), new Point(1423.71, 508.85));
-  const u3 = new Polygon(new Point(1448.71, 552.1487298107781), new Point(1398.71, 552.1487298107781), new Point(1423.71, 595.45));
-  const union = Polygon.union([u1, u2, u3], undefined, true);
-  test.equal(Math.abs(total(union.map(u => u.area)) - (u1.area + u2.area + u3.area)) < 1, true);
-
   // if you change useRound to true on this union it will produce a zero segment error.
   const polyList = [
     new Polygon(new Point(1167.2641162274222, 3633.834721294776), new Point(1342.2641162274222, 3330.7258299702225), new Point(1167.2641162274222, 3330.7258299702225), new Point(1079.7641162274222, 3482.2802756324995)),