Inizio trasposizione linea verticale

geometry.cpp

@@ -105,13 +105,17 @@ get_line(Point p, Point q)
 bool
 is_in_line(cv::Vec<double,3> line, Point p)
 {
-    return line(0)*p.x + line(1)*p.y + line(2) == 0;
+    return line_value(line, p) == 0;
 }
 
 bool
 is_above_line(cv::Vec<double,3> line, Point p)
 {
-    return line(0)*p.x + line(1)*p.y + line(2) > 0;
+    return line_value(line, p) > 0;
+}
+double line_value(cv::Vec<double,3> line, Point p)
+{
+    return line(0)*p.x + line(1)*p.y + line(2);
 }
 
 cv::Point

geometry.h

@@ -11,6 +11,7 @@ cv::Point unmap_point(double, cv::Point, cv::Point);
 cv::Vec<double,3> get_line(cv::Point, cv::Point);
 bool is_in_line(cv::Vec<double,3> line, cv::Point p);
 bool is_above_line(cv::Vec<double,3> line, cv::Point p);
+double line_value(cv::Vec<double,3>, cv::Point);
 cv::Point further_point_from_line(cv::Vec<double,3>, std::vector<cv::Point>);
 
 class CoordinateSystem

lines.cpp

@@ -119,6 +119,8 @@ class BookShape {
 		double ysize();
 		cv::Mat* getTrasfs();
 };
+//topleft topmiddle topright
+//botleft botmiddle botright
 BookShape::BookShape(cv::Point tl, cv::Point tm, cv::Point tr, cv::Point bl, cv::Point bm, cv::Point br)
 {
 	trapezoids[0][0] = tl;
@@ -195,14 +197,32 @@ BookShape get_book_shape(cv::Mat img)
 	corn_3 = hull[maxdistances[1]];
 	corn_4 = hull[(maxdistances[1]+1)%hull.size()];
 
-	std::vector<cv::Point> verticals[2];
+	std::vector<cv::Point> vertical_points[2];
+	cv::Vec<double,3> verticals[2];
 	// Between the two corners on the same side, the longest line is the vertical border of the book
-	verticals[0] = find_longest_line(hull, (maxdistances[0]+1)%hull.size(), maxdistances[1]);
+	vertical_points[0] = find_longest_line(hull, (maxdistances[0]+1)%hull.size(), maxdistances[1]);
 	std::cout << maxdistances[1] << std::endl;
 	std::cout << maxdistances[1]+1 << std::endl;
 	std::cout << (maxdistances[1]+1)%hull.size() << std::endl;
-	verticals[1] = find_longest_line(hull, (maxdistances[1]+1)%hull.size(), maxdistances[0]);
+	vertical_points[1] = find_longest_line(hull, (maxdistances[1]+1)%hull.size(), maxdistances[0]);
 	free(maxdistances);
+#ifdef _DEBUG
+	img = cv::imread("files/masckera.png", CV_LOAD_IMAGE_COLOR);
+	cv::circle(img, vertical_points[0][0], img.cols>>7, cv::Scalar(200, 0, 0), -1);
+	cv::circle(img, vertical_points[0][vertical_points[0].size()-1], img.cols>>7, cv::Scalar(200, 0, 0), -1);
+	cv::circle(img, vertical_points[1][0], img.cols>>7, cv::Scalar(200, 200, 0), -1);
+	cv::circle(img, vertical_points[1][vertical_points[1].size()-1], img.cols>>7, cv::Scalar(200, 0, 0), -1);
+	cv::circle(img, corn_1, img.cols>>7, cv::Scalar(200, 0, 200), -1);
+	cv::namedWindow("aaa", CV_GUI_NORMAL);
+	cv::imshow("aaa", img);
+	cv::waitKey(0);
+#endif
+	verticals[0] = get_line(vertical_points[0][0], vertical_points[0][vertical_points[0].size()-1]);
+	std::cout << verticals[0] << std::endl;
+	std::cout << line_value(verticals[0], corn_1) << std::endl;
+	verticals[0][2] -= line_value(verticals[0], corn_1);
+	std::cout << line_value(verticals[0], corn_1) << "=0?" << std::endl;
+	verticals[1] = get_line(vertical_points[1][0], vertical_points[1][vertical_points[1].size()-1]);
 
 	// theta is the angle of the line connecting point 1 and 2; it will be the
 	// rotation of our new coordinate system