From 3703fe702392f5ce4064a91cef5eead3d9f10afa Mon Sep 17 00:00:00 2001
From: hyzboy <hyzboy@gmail.com>
Date: Tue, 6 Aug 2024 00:50:59 +0800
Subject: [PATCH] Added Pick2DTest.cpp

---
 CMakeLists.txt              |  5 ++
 math/TransformBenchmark.cpp |  2 +-
 pick/Pick2DTest.cpp         | 95 +++++++++++++++++++++++++++++++++++++
 3 files changed, 101 insertions(+), 1 deletion(-)
 create mode 100644 pick/Pick2DTest.cpp

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4545268..1c4b1c6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -91,6 +91,11 @@ cm_example_project("DataType/DataArray" DataChainTest)
 
 add_executable(DataChainTest2 datatype/DataChainTest2.cpp)
 cm_example_project("DataType/DataArray" DataChainTest2)
+####################################################################################################
+
+add_executable(Pick2DTest pick/Pick2DTest.cpp)
+cm_example_project("Pick" Pick2DTest)
+target_link_libraries(Pick2DTest PRIVATE CM2D)
 
 ####################################################################################################
 
diff --git a/math/TransformBenchmark.cpp b/math/TransformBenchmark.cpp
index b8304c7..08d6efb 100644
--- a/math/TransformBenchmark.cpp
+++ b/math/TransformBenchmark.cpp
@@ -5,7 +5,7 @@
 
 using namespace hgl;
 
-constexpr const size_t TEST_COUNT=10000;
+constexpr const size_t TEST_COUNT=1000000;
 
 int main(int,char **)
 {
diff --git a/pick/Pick2DTest.cpp b/pick/Pick2DTest.cpp
new file mode 100644
index 0000000..0c1b429
--- /dev/null
+++ b/pick/Pick2DTest.cpp
@@ -0,0 +1,95 @@
+#include<hgl/type/RectScope.h>
+#include<hgl/graph/Triangle.h>
+#include<hgl/2d/TGA.h>
+#include<hgl/2d/Bitmap.h>
+#include<hgl/2d/BitmapSave.h>
+#include<hgl/2d/DrawGeometry.h>
+#include<hgl/Time.h>
+#include<iostream>
+#include<random>
+
+std::random_device rd;
+std::mt19937 gen(rd());
+std::uniform_real_distribution<> dis_01(0, 1);
+std::uniform_int_distribution<> dis_int(0, 1023);
+
+using namespace hgl;
+using namespace std;
+
+void Pick2DRectangle()
+{
+    RectScope2f rs;
+    
+    rs.SetPosition(0,0);
+    rs.SetSize(1,1);
+
+    rs.PointIn(hgl::Vector2f(0.5,0.5));
+}
+
+void Pick2DTriangle()
+{
+    graph::Triangle2i tri;
+
+    Vector2i v[3];
+    Vector3i edge_length;
+    Vector2i t;
+    
+    for(int i=0;i<3;i++)
+    {
+        v[i].x=dis_int(gen);
+        v[i].y=dis_int(gen);
+
+        tri.SetVertex(i,v[i]);
+
+        std::cout<<"triangle "<<i<<"："<<v[i].x<<","<<v[i].y<<std::endl;
+    }
+
+    edge_length.x=tri.GetEdgeLength(0);
+    edge_length.y=tri.GetEdgeLength(1);
+    edge_length.z=tri.GetEdgeLength(2);
+
+    std::cout<<"triangle area(method 1): "<<TriangleArea(edge_length.x,edge_length.y,edge_length.z)<<std::endl;
+    std::cout<<"triangle area(method 2): "<<tri.Area()<<std::endl;
+
+    bitmap::BitmapRGB8 bmp;
+    Vector3u8 clear_color(0,0,0);
+
+    bmp.Create(1024,1024);
+    bmp.ClearColor(clear_color);
+
+    bitmap::DrawGeometryRGB8 draw(&bmp);
+
+    draw.SetDrawColor(Vector3u8(255,255,255));
+
+    draw.DrawLine(v[0],v[1]);
+    draw.DrawLine(v[1],v[2]);
+    draw.DrawLine(v[2],v[0]);
+
+    double st=GetDoubleTime();
+
+    for(int i=0;i<10000;i++)
+    {
+        t.x=dis_int(gen);
+        t.y=dis_int(gen);
+
+        if(tri.PointIn(t))
+            draw.SetDrawColor(Vector3u8(0,255,0));
+        else
+            draw.SetDrawColor(Vector3u8(0,0,255));
+
+        draw.PutPixel(t);
+    }
+
+    double et=GetDoubleTime();
+
+    std::cout<<"test 10000 points in a triangle cost "<<(et-st)<<" seconds."<<std::endl;
+
+    bitmap::SaveBitmapToTGA(OS_TEXT("Triangle.tga"),&bmp);
+}
+
+int main(int,char **)
+{
+    Pick2DTriangle();
+
+    return 0;
+}
\ No newline at end of file