Benchmark: point in triangle

Script Preparation code:

/*  var polygon = [{x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}];
  px = Math.random();
  py = Math.random();
var v0x = polygon[1].x-polygon[0].x;
var v0y = polygon[1].y-polygon[0].y;
var v1x = polygon[2].x-polygon[0].x;
var v1y = polygon[2].y-polygon[0].y;

// if v0 cross v1 is positive, triangle is counter clockwise when viewed from above.
var normal = v0x*v1y - v1x*v0y;

point {x: 47.87142596679951, y: -6.500680708968048}
triangle
"{"a":{"x":-40.49496078491211,"y":-8.738582611083984},
  "b":{"x":-41.94913723574891,"y":-6.313193949870829},
  "c":{"x":-41.94775545887751,"y":-6.315498584878696}
*/
1;

Tests:

winding
var polygon = [{x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}]; px = Math.random(); py = Math.random(); var v0x = polygon[1].x-polygon[0].x; var v0y = polygon[1].y-polygon[0].y; var v1x = polygon[2].x-polygon[0].x; var v1y = polygon[2].y-polygon[0].y; // if v0 cross v1 is positive, triangle is counter clockwise when viewed from above. var normal = v0x*v1y - v1x*v0y; var length = polygon.length; var windingNumber = 0; var i = 0; var l = polygon.length - 1; var edgePoint1 = polygon[l]; var edgePoint2; for (; i <= l; i++) { edgePoint2 = polygon[i]; var edgePoint1x = edgePoint1.x; var edgePoint1y = edgePoint1.y; var edgePoint2x = edgePoint2.x; var edgePoint2y = edgePoint2.y; // if it passes the point going upward if ( edgePoint1y <= py && edgePoint2y > py) { // and the point is to the left // EQUATION COPIED FROM GeometryUtils.isLeft for performance reasons if ((edgePoint2x - edgePoint1x) * (py - edgePoint1y) - (px - edgePoint1x) * (edgePoint2y - edgePoint1y) > 0 ) { // increment windingNumber windingNumber++; } } // else if it passes the point going down else if ( edgePoint1y > py && edgePoint2y <= py) { // and the point is to the right if ((edgePoint2x - edgePoint1x) * (py - edgePoint1y) - (px - edgePoint1x) * (edgePoint2y - edgePoint1y) < 0) { // decrement windingNumber windingNumber--; } } edgePoint1 = edgePoint2; } // the point is inside the polygon as long as the winding number isn't zero. return windingNumber !== 0;
bary
var polygon = [{x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}]; px = Math.random(); py = Math.random(); var v0x = polygon[1].x-polygon[0].x; var v0y = polygon[1].y-polygon[0].y; var v1x = polygon[2].x-polygon[0].x; var v1y = polygon[2].y-polygon[0].y; // if v0 cross v1 is positive, triangle is counter clockwise when viewed from above. var normal = v0x*v1y - v1x*v0y; var a = polygon[0]; var b = polygon[1]; var c = polygon[2]; // Compute vectors var v0x = c.x - a.x; var v0y = c.y - a.y; var v1x = b.x - a.x; var v1y = b.y - a.y; var v2x = px - a.x; var v2y = py - a.y; var dot00 = v0x * v0x + v0y * v0y; var dot01 = v0x * v1x + v0y * v1y; var dot02 = v0x * v2x + v0y * v2y; var dot11 = v1x * v1x + v1y * v1y; var dot12 = v1x * v2x + v1y * v2y; var denom = dot00 * dot11 - dot01 * dot01; var u = (dot11 * dot02 - dot01 * dot12) / denom; var v = (dot00 * dot12 - dot01 * dot02) /denom; // Check if point is in triangle return (u >= 0) && (v >= 0) && (u + v < 1);
bary2
var polygon = [{x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}]; px = Math.random(); py = Math.random(); var v0x = polygon[1].x-polygon[0].x; var v0y = polygon[1].y-polygon[0].y; var v1x = polygon[2].x-polygon[0].x; var v1y = polygon[2].y-polygon[0].y; // if v0 cross v1 is positive, triangle is counter clockwise when viewed from above. var normal = v0x*v1y - v1x*v0y; var a = polygon[0]; var b = polygon[1]; var c = polygon[2]; var ax = a.x; var ay = a.y; // Compute vectors var v0x = c.x - ax; var v0y = c.y - ay; var v1x = b.x - ax; var v1y = b.y - ay; var v2x = px - ax; var v2y = py - ay; var dot00 = v0x * v0x + v0y * v0y; var dot01 = v0x * v1x + v0y * v1y; var dot02 = v0x * v2x + v0y * v2y; var dot11 = v1x * v1x + v1y * v1y; var dot12 = v1x * v2x + v1y * v2y; var denom = dot00 * dot11 - dot01 * dot01; var u = (dot11 * dot02 - dot01 * dot12) / denom; var v = (dot00 * dot12 - dot01 * dot02) /denom; // Check if point is in triangle return (u >= 0) && (v >= 0) && (u + v < 1) && (normal > 0);
half planes
var polygon = [{x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}]; px = Math.random(); py = Math.random(); var v0x = polygon[1].x-polygon[0].x; var v0y = polygon[1].y-polygon[0].y; var v1x = polygon[2].x-polygon[0].x; var v1y = polygon[2].y-polygon[0].y; // if v0 cross v1 is positive, triangle is counter clockwise when viewed from above. var normal = v0x*v1y - v1x*v0y; var ax = polygon[0].x; var bx = polygon[1].x; var cx = polygon[2].x; var ay = polygon[0].y; var by = polygon[1].y; var cy = polygon[2].y; var b1 = (px - bx) * (ay - by) - (ax - bx) * (py - by); var b2 = (px - cx) * (by - cy) - (bx - cx) * (py - cy); var b3 = (px - ax) * (cy - ay) - (cx - ax) * (py - ay); return (b1==b2) && (b2==b3);
half planes with normal
var polygon = [{x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}]; px = Math.random(); py = Math.random(); var v0x = polygon[1].x-polygon[0].x; var v0y = polygon[1].y-polygon[0].y; var v1x = polygon[2].x-polygon[0].x; var v1y = polygon[2].y-polygon[0].y; // if v0 cross v1 is positive, triangle is counter clockwise when viewed from above. var normal = v0x*v1y - v1x*v0y; var ax = polygon[0].x; var bx = polygon[1].x; var cx = polygon[2].x; var ay = polygon[0].y; var by = polygon[1].y; var cy = polygon[2].y; if (((px - ax) * (by - ay) - (bx - ax) * (py - ay)) > 0 == normal > 0) return true; if (((px - bx) * (cy - by) - (cx - bx) * (py - by)) > 0 == normal > 0) { return true; } return ((px - cx) * (ay - cy) - (ax - cx) * (py - cy)) > 0 == normal > 0;
half planes with normal and vars
var polygon = [{x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}, {x:Math.random(), y:Math.random()}]; px = Math.random(); py = Math.random(); var v0x = polygon[1].x-polygon[0].x; var v0y = polygon[1].y-polygon[0].y; var v1x = polygon[2].x-polygon[0].x; var v1y = polygon[2].y-polygon[0].y; // if v0 cross v1 is positive, triangle is counter clockwise when viewed from above. var normal = v0x*v1y - v1x*v0y; var a = polygon[0]; var b = polygon[1]; var c = polygon[2]; var ax = a.x; var bx = b.x; var ay = a.y; var by = b.y; var pxax = px-ax; var byay = by-ay; var bxax = bx-ax; var pyay = py-ay; if ((pxax * byay - bxax * pyay) * normal > 0) return true; var cx = c.x; var cy = c.y; var pxbx = px-bx; var cyby = cy-by; var cxbx = cx-bx; var pyby = py-by; if ((pxbx * cyby - cxbx * pyby) * normal > 0) return true; var pxcx = px-cx; var aycy = ay-cy; var axcx = ax-cx; var pycy = py-cy; return ((pxcx * aycy - axcx * pycy) * normal) > 0;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
winding
bary
bary2
half planes
half planes with normal
half planes with normal and vars

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36

Browser/OS: Chrome 58 on Linux

View result in a separate tab

Test name	Executions per second
winding	236834.5 Ops/sec
bary	396909.9 Ops/sec
bary2	395129.3 Ops/sec
half planes	301100.3 Ops/sec
half planes with normal	345547.5 Ops/sec
half planes with normal and vars	346670.2 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):

LLMs can make mistakes. Check important info.

It looks like we have some benchmark results for a JavaScript test, specifically the "half planes with normal and vars" test.

To analyze these results, I'll focus on the last result: `[
{
"RawUAString": "...",
"Browser": "Chrome 58",
"DevicePlatform": "Other",
"OperatingSystem": "Linux",
"ExecutionsPerSecond": 236834.5,
"TestName": "winding"
}
]`

Here are my observations:

1. **Fastest result**: The first result for the "half planes with normal and vars" test has an execution rate of 396909.875 executions per second, which is significantly faster than the latest result (236834.5). This suggests that there may be some optimization opportunities in the code being tested.
2. **Similar results**: The latest result has similar or slightly slower times for other tests (e.g., "bary", "half planes with normal", and "half planes").
3. **Test name**: The test name is "winding", which doesn't seem to match any of the previous tests. It's possible that this is a new test or a variant of an existing one.
4. **Browser and OS**: All results are from Chrome 58 on Linux, so there may not be significant differences in performance across different browsers or operating systems.

Without more context about the code being tested, it's difficult to provide more specific insights. However, these observations suggest that the test is relatively fast and consistent across different runs and environments.

Related benchmarks:

point in triangle (version: 24)

Comparing performance of: winding vs bary vs bary2 vs half planes vs half planes with normal vs half planes with normal and vars

Created: 7 years ago by: Registered User

Jump to the latest result

winding

bary

bary2

half planes

half planes with normal

half planes with normal and vars

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):