From 397204b33ebf0ea062ed4f68c9ce7b53ef0ff30c Mon Sep 17 00:00:00 2001
From: yasarba71520 <yasarba71520@th-nuernberg.de>
Date: Mon, 14 Nov 2022 17:31:01 +0100
Subject: [PATCH] =?UTF-8?q?Angefangen=20erste=20Linien=20zusammenf=C3=BChr?=
 =?UTF-8?q?en=20zu=20wollen?=
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---
 Processing/processing.cpp | 30 +++++++++++++++++++++++++++++-
 Utils/utils.cpp           | 14 ++++++++++++++
 Utils/utils.h             | 10 +++++-----
 3 files changed, 48 insertions(+), 6 deletions(-)

diff --git a/Processing/processing.cpp b/Processing/processing.cpp
index c82b98a..0fa0cf1 100644
--- a/Processing/processing.cpp
+++ b/Processing/processing.cpp
@@ -23,8 +23,8 @@ void Processing::processImage(Mat& inputPicture, int thresholdValue, int gaussKe
     // One (this) to do all kinds of stuff to the picture (grayscale conversion, threshold, gauss etc etc)
     // And one (the other one) to segment the lines.
     // No return value here as the input is passed by reference -> directly modified.
-    vector<Vec4i> lines;
     
+    vector<Vec4i> lines;
 
     cvtColor(inputPicture, inputPicture, COLOR_BGR2GRAY);
     threshold(inputPicture, inputPicture, thresholdValue, 255, THRESH_BINARY);
@@ -39,6 +39,34 @@ void Processing::processImage(Mat& inputPicture, int thresholdValue, int gaussKe
         line( inputPicture, Point(lines[i][0], lines[i][1]),
         Point( lines[i][2], lines[i][3]), Scalar(0,0,255), 3, 8 );
     }
+    vector<VectorOfLines> vectors;
+
+    Point point11;
+    Point point12;
+    Point point21;
+    Point point22;
+
+    for( size_t i = 0; i < lines.size(); i++ )
+    {
+        point11 = Point(lines[i][0], lines[i][1]);
+        point12 = Point( lines[i][2], lines[i][3]);
+        float gradient1 = VectorOfLines::calcGradient(point11, point12);
+        for( size_t j = 0; j < lines.size(); j++ )
+        {
+            if(j != i){
+            point21 = Point(lines[j][0], lines[j][1]);
+            point22 = Point(lines[j][2], lines[j][3]);
+            float gradient2 = VectorOfLines::calcGradient(point21, point22);
+            float gradient12 = VectorOfLines::calcGradient(point12, point21);
+            if((norm(gradient1 - gradient2) < 0.05) & (norm(gradient1 - gradient12) <  0.05))
+            {
+                //To Do: add line between 2 lines
+            }
+
+            }
+        }
+    }
+
 
     imshow("Result", inputPicture);
     waitKey(0);
diff --git a/Utils/utils.cpp b/Utils/utils.cpp
index c170b5c..083e86c 100644
--- a/Utils/utils.cpp
+++ b/Utils/utils.cpp
@@ -45,3 +45,17 @@ LFRLine::LFRLine(LFRPoint start, LFRPoint end) : start(start)
 LFRLine::~LFRLine()
 {
 }
+
+VectorOfLines::VectorOfLines()
+{
+}
+
+float VectorOfLines::calcGradient(Point p0, Point p1)
+{
+    return (p1.y - p0.y)/(p1.x - p0.x);
+}
+    
+float VectorOfLines::calcZeroPoint(cv::Point x, float m)
+{
+    
+}
\ No newline at end of file
diff --git a/Utils/utils.h b/Utils/utils.h
index c30d401..dd0cd01 100644
--- a/Utils/utils.h
+++ b/Utils/utils.h
@@ -49,14 +49,14 @@ public:
 
 class VectorOfLines{
     private:
-    float theta;
-    float m;
-    float zeroPoint;
     public:
+    Point startPoint;
+    float gradient;
+    float zeroPoint;
     VectorOfLines();
     ~VectorOfLines();
-    float calcTheta(cv::Point x, Point y);
-    float calcM(float theta);
+    static float calcGradient(Point x, Point y);
     float calcZeroPoint(cv::Point x, float m);
 
+
 };
\ No newline at end of file