From 36c466d8953eb9fc8870fb19ad4b58897913b58e Mon Sep 17 00:00:00 2001
From: finscn <finscn@gmail.com>
Date: Tue, 19 Mar 2019 14:58:11 +0800
Subject: [PATCH] Flip Y , make the result be natural.

---
 src/proj2d/Projection2d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/proj2d/Projection2d.ts b/src/proj2d/Projection2d.ts
index bb639c3..68fa01f 100644
--- a/src/proj2d/Projection2d.ts
+++ b/src/proj2d/Projection2d.ts
@@ -42,7 +42,7 @@ namespace pixi_projection {
 
 		setAxisY(p: PointLike, factor: number = 1) {
 			const x = p.x, y = p.y;
-			const d = Math.sqrt(x * x + y * y);
+			const d = -Math.sqrt(x * x + y * y);
 			const mat3 = this.matrix.mat3;
 			mat3[3] = x / d;
 			mat3[4] = y / d;