mexopencv  0.1
mex interface for opencv library
line.cpp
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1 
8 #include "mexopencv.hpp"
9 using namespace std;
10 using namespace cv;
11 
19 void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
20 {
21  // Check the number of arguments
22  nargchk(nrhs>=3 && (nrhs%2)==1 && nlhs<=1);
23 
24  // Argument vector
25  vector<MxArray> rhs(prhs, prhs+nrhs);
26 
27  // Option processing
28  Scalar color;
29  int thickness = 1;
30  int lineType = cv::LINE_8;
31  int shift = 0;
32  for (int i=3; i<nrhs; i+=2) {
33  string key(rhs[i].toString());
34  if (key=="Color")
35  color = rhs[i+1].toScalar();
36  else if (key=="Thickness")
37  thickness = (rhs[i+1].isChar()) ?
38  ThicknessType[rhs[i+1].toString()] : rhs[i+1].toInt();
39  else if (key=="LineType")
40  lineType = (rhs[i+1].isChar()) ?
41  LineType[rhs[i+1].toString()] : rhs[i+1].toInt();
42  else if (key=="Shift")
43  shift = rhs[i+1].toInt();
44  else
45  mexErrMsgIdAndTxt("mexopencv:error","Unrecognized option");
46  }
47 
48  // Process
49  Mat img(rhs[0].toMat());
50  Point pt1(rhs[1].toPoint()), pt2(rhs[2].toPoint());
51  line(img, pt1, pt2, color, thickness, lineType, shift);
52  plhs[0] = MxArray(img);
53 }
const ConstMap< std::string, int > LineType
Line type for drawing.
Definition: mexopencv.hpp:109
mxArray object wrapper for data conversion and manipulation.
Definition: MxArray.hpp:123
void nargchk(bool cond)
Alias for input/ouput arguments number check.
Definition: mexopencv.hpp:166
const ConstMap< std::string, int > ThicknessType
Thickness type for drawing.
Definition: mexopencv.hpp:115
Global constant definitions.
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
Main entry called from Matlab.
Definition: line.cpp:19