1 files changed, 149 insertions, 0 deletions
diff --git a/sci_gateway/cpp/opencv_clipline.cpp b/sci_gateway/cpp/opencv_clipline.cpp
new file mode 100644
index 0000000..2e13412
--- /dev/null
+++ b/sci_gateway/cpp/opencv_clipline.cpp
@@ -0,0 +1,149 @@
+/********************************************************
+    Author: Abhilasha Sancheti & Sukul Bagai
+*********************************************************
+   return_image = clipline( width, height, x1 , y1 , x2,y2 )
+********************************************************/
+ 
+#include <numeric>
+#include "opencv2/core/core.hpp"
+#include "opencv2/highgui/highgui.hpp"
+#include "opencv2/opencv.hpp"
+#include <iostream>
+using namespace cv;
+using namespace std;
+extern "C"
+{
+  #include "api_scilab.h"
+  #include "Scierror.h"
+  #include "BOOL.h"
+  #include <localization.h>
+  #include <sciprint.h>
+  #include "../common.h"
+  
+  int opencv_clipline(char *fname, unsigned long fname_len)
+  {
+
+    SciErr sciErr;
+    int intErr=0;
+    int iRows=0,iCols=0;
+    int *piAddr1 = NULL;
+    int *piAddr2  = NULL;
+    int *piAddr3  = NULL;
+    int *piAddr4  = NULL;
+    int *piAddr5  = NULL;
+    int *piAddr6  = NULL;
+    int i,j,k;
+    double x1,y1,x2,y2,width,height;
+
+
+    //checking input argument
+    CheckInputArgument(pvApiCtx, 6, 6);
+    CheckOutputArgument(pvApiCtx, 1, 1) ;
+    
+    //for width of the rectangle    
+     sciErr = getVarAddressFromPosition(pvApiCtx,1,&piAddr1);
+    if (sciErr.iErr) 
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr1 ,&width);
+    if(intErr)
+      return intErr;
+
+    // for height of the rectangle
+    sciErr = getVarAddressFromPosition(pvApiCtx,2,&piAddr2);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr2,&height);
+    if(intErr)
+      return intErr;
+  
+    //for value of x coordinate of first point
+    sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr3, &x1);
+    if(intErr)
+        return intErr;
+
+    //for value of y coordinate of first point
+    sciErr = getVarAddressFromPosition(pvApiCtx,4,&piAddr4);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr4,&y1);
+    if(intErr)
+      return intErr;
+
+    //for value of x coordinate of second point
+    sciErr = getVarAddressFromPosition(pvApiCtx,5,&piAddr5);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr5,&x2);
+    if(intErr)
+      return intErr;
+
+    ///for value of y coordinate of second point
+    sciErr = getVarAddressFromPosition(pvApiCtx,6,&piAddr6);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr6 ,&y2);
+     if(intErr)
+      return intErr;
+    
+
+    if(height<0)
+    {
+        sciprint("Positive Value Required for Height. 1 value was used instead");
+        height=1;
+    }
+    if(width<0)
+    {
+        sciprint("Positive Value Required for Width. 1 value was used instead");
+        width=1;
+    }  
+    //temporary pt1 variable, to use in function as first line point
+    Point pt1(x1,y1);
+    //temporary pt2 variable, to use in function as second line point
+    Point pt2(x2,y2);
+    // image size
+    Size sz(width,height);
+    Rect  r(0,0,width,height);
+   //// calling open cv clipLine function       
+   
+    bool ans = clipLine( sz , pt1, pt2);
+    int actualans=(int)ans;
+     
+  // returning the result to the scilab environment
+   // Syntax: SciErr createMatrixOfBoolean(void* _pvCtx, int _iVar, int _iRows, int _iCols, const int* _piBool)
+  intErr= createScalarBoolean(pvApiCtx, nbInputArgument(pvApiCtx) + 1, actualans);
+    if(intErr)
+       return intErr;
+
+
+    //Assigning the list as the Output Variable
+    AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
+    //Returning the Output Variables as arguments to the Scilab environment
+    ReturnArguments(pvApiCtx); 
+    return 0;
+
+
+ }
+
+}
+