init - 初始化项目

2022-05-06 01:58:53 +08:00
commit 90a5cc7cb6
6772 changed files with 2837787 additions and 0 deletions
--- a/samples/cpp/delaunay2.cpp
+++ b/samples/cpp/delaunay2.cpp
@@ -0,0 +1,153 @@
+#include <opencv2/imgproc.hpp>
+#include <opencv2/highgui.hpp>
+#include <iostream>
+
+using namespace cv;
+using namespace std;
+
+static void help(char** argv)
+{
+    cout << "\nThis program demonstrates iterative construction of\n"
+            "delaunay triangulation and voronoi tessellation.\n"
+            "It draws a random set of points in an image and then delaunay triangulates them.\n"
+            "Usage: \n";
+    cout << argv[0];
+    cout << "\n\nThis program builds the triangulation interactively, you may stop this process by\n"
+            "hitting any key.\n";
+}
+
+static void draw_subdiv_point( Mat& img, Point2f fp, Scalar color )
+{
+    circle( img, fp, 3, color, FILLED, LINE_8, 0 );
+}
+
+static void draw_subdiv( Mat& img, Subdiv2D& subdiv, Scalar delaunay_color )
+{
+#if 1
+    vector<Vec6f> triangleList;
+    subdiv.getTriangleList(triangleList);
+    vector<Point> pt(3);
+
+    for( size_t i = 0; i < triangleList.size(); i++ )
+    {
+        Vec6f t = triangleList[i];
+        pt[0] = Point(cvRound(t[0]), cvRound(t[1]));
+        pt[1] = Point(cvRound(t[2]), cvRound(t[3]));
+        pt[2] = Point(cvRound(t[4]), cvRound(t[5]));
+        line(img, pt[0], pt[1], delaunay_color, 1, LINE_AA, 0);
+        line(img, pt[1], pt[2], delaunay_color, 1, LINE_AA, 0);
+        line(img, pt[2], pt[0], delaunay_color, 1, LINE_AA, 0);
+    }
+#else
+    vector<Vec4f> edgeList;
+    subdiv.getEdgeList(edgeList);
+    for( size_t i = 0; i < edgeList.size(); i++ )
+    {
+        Vec4f e = edgeList[i];
+        Point pt0 = Point(cvRound(e[0]), cvRound(e[1]));
+        Point pt1 = Point(cvRound(e[2]), cvRound(e[3]));
+        line(img, pt0, pt1, delaunay_color, 1, LINE_AA, 0);
+    }
+#endif
+}
+
+static void locate_point( Mat& img, Subdiv2D& subdiv, Point2f fp, Scalar active_color )
+{
+    int e0=0, vertex=0;
+
+    subdiv.locate(fp, e0, vertex);
+
+    if( e0 > 0 )
+    {
+        int e = e0;
+        do
+        {
+            Point2f org, dst;
+            if( subdiv.edgeOrg(e, &org) > 0 && subdiv.edgeDst(e, &dst) > 0 )
+                line( img, org, dst, active_color, 3, LINE_AA, 0 );
+
+            e = subdiv.getEdge(e, Subdiv2D::NEXT_AROUND_LEFT);
+        }
+        while( e != e0 );
+    }
+
+    draw_subdiv_point( img, fp, active_color );
+}
+
+
+static void paint_voronoi( Mat& img, Subdiv2D& subdiv )
+{
+    vector<vector<Point2f> > facets;
+    vector<Point2f> centers;
+    subdiv.getVoronoiFacetList(vector<int>(), facets, centers);
+
+    vector<Point> ifacet;
+    vector<vector<Point> > ifacets(1);
+
+    for( size_t i = 0; i < facets.size(); i++ )
+    {
+        ifacet.resize(facets[i].size());
+        for( size_t j = 0; j < facets[i].size(); j++ )
+            ifacet[j] = facets[i][j];
+
+        Scalar color;
+        color[0] = rand() & 255;
+        color[1] = rand() & 255;
+        color[2] = rand() & 255;
+        fillConvexPoly(img, ifacet, color, 8, 0);
+
+        ifacets[0] = ifacet;
+        polylines(img, ifacets, true, Scalar(), 1, LINE_AA, 0);
+        circle(img, centers[i], 3, Scalar(), FILLED, LINE_AA, 0);
+    }
+}
+
+
+int main( int argc, char** argv )
+{
+    cv::CommandLineParser parser(argc, argv, "{help h||}");
+    if (parser.has("help"))
+    {
+        help(argv);
+        return 0;
+    }
+
+    Scalar active_facet_color(0, 0, 255), delaunay_color(255,255,255);
+    Rect rect(0, 0, 600, 600);
+
+    Subdiv2D subdiv(rect);
+    Mat img(rect.size(), CV_8UC3);
+
+    img = Scalar::all(0);
+    string win = "Delaunay Demo";
+    imshow(win, img);
+
+    for( int i = 0; i < 200; i++ )
+    {
+        Point2f fp( (float)(rand()%(rect.width-10)+5),
+                    (float)(rand()%(rect.height-10)+5));
+
+        locate_point( img, subdiv, fp, active_facet_color );
+        imshow( win, img );
+
+        if( waitKey( 100 ) >= 0 )
+            break;
+
+        subdiv.insert(fp);
+
+        img = Scalar::all(0);
+        draw_subdiv( img, subdiv, delaunay_color );
+        imshow( win, img );
+
+        if( waitKey( 100 ) >= 0 )
+            break;
+    }
+
+    img = Scalar::all(0);
+    paint_voronoi( img, subdiv );
+    imshow( win, img );
+
+    waitKey(0);
+
+    return 0;
+}