run binding opencv2.x demo failed

[orange-jacky]

package exam2

import . "github.com/lazywei/go-opencv/gocv"
import "github.com/gonum/matrix/mat64"
import "fmt"

func Sample2() {

objPts := mat64.NewDense(4, 3, []float64{
	0, 25, 0,
	0, -25, 0,
	-47, 25, 0,
	-47, -25, 0})

imgPts := mat64.NewDense(4, 2, []float64{
	1136.4140625, 1041.89208984,
	1845.33190918, 671.39581299,
	302.73373413, 634.79998779,
	1051.46154785, 352.76107788})

camMat := GcvInitCameraMatrix2D(objPts, imgPts)
fmt.Println(camMat)

}

main function call Sample2, it issued,

ithub.com/lazywei/go-opencv/gocv

github.com/lazywei/go-opencv/gocv

gocv_core.i:121: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:129: Warning 503: Can't wrap 'operator CvSize' unless renamed to a valid identifier.
gocv_core.i:130: Warning 503: Can't wrap 'operator CvSize2D32f' unless renamed to a valid identifier.
gocv_core.i:121: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:129: Warning 503: Can't wrap 'operator CvSize' unless renamed to a valid identifier.
gocv_core.i:130: Warning 503: Can't wrap 'operator CvSize2D32f' unless renamed to a valid identifier.
gocv_core.i:121: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:129: Warning 503: Can't wrap 'operator CvSize' unless renamed to a valid identifier.
gocv_core.i:130: Warning 503: Can't wrap 'operator CvSize2D32f' unless renamed to a valid identifier.
gocv_core.i:156: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:170: Warning 503: Can't wrap 'operator CvRect' unless renamed to a valid identifier.
gocv_core.i:40: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:45: Warning 503: Can't wrap 'operator CvPoint' unless renamed to a valid identifier.
gocv_core.i:46: Warning 503: Can't wrap 'operator CvPoint2D32f' unless renamed to a valid identifier.
gocv_core.i:47: Warning 503: Can't wrap 'operator Vec<int,2>' unless renamed to a valid identifier.
gocv_core.i:40: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:45: Warning 503: Can't wrap 'operator CvPoint' unless renamed to a valid identifier.
gocv_core.i:46: Warning 503: Can't wrap 'operator CvPoint2D32f' unless renamed to a valid identifier.
gocv_core.i:47: Warning 503: Can't wrap 'operator Vec<float,2>' unless renamed to a valid identifier.
gocv_core.i:40: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:45: Warning 503: Can't wrap 'operator CvPoint' unless renamed to a valid identifier.
gocv_core.i:46: Warning 503: Can't wrap 'operator CvPoint2D32f' unless renamed to a valid identifier.
gocv_core.i:47: Warning 503: Can't wrap 'operator Vec<double,2>' unless renamed to a valid identifier.
gocv_core.i:82: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:86: Warning 503: Can't wrap 'operator CvPoint3D32f' unless renamed to a valid identifier.
gocv_core.i:88: Warning 503: Can't wrap 'operator Vec<int,3>' unless renamed to a valid identifier.
gocv_core.i:82: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:86: Warning 503: Can't wrap 'operator CvPoint3D32f' unless renamed to a valid identifier.
gocv_core.i:88: Warning 503: Can't wrap 'operator Vec<float,3>' unless renamed to a valid identifier.
gocv_core.i:82: Warning 503: Can't wrap 'operator =' unless renamed to a valid identifier.
gocv_core.i:86: Warning 503: Can't wrap 'operator CvPoint3D32f' unless renamed to a valid identifier.
gocv_core.i:88: Warning 503: Can't wrap 'operator Vec<double,3>' unless renamed to a valid identifier.
gocv_core.i:241: Warning 516: Overloaded method cv::Mat::diag(cv::Mat const &) ignored,
gocv_core.i:239: Warning 516: using cv::Mat::diag() const instead.
gocv_core.i:279: Warning 516: Overloaded method cv::Mat::at< float >() const ignored,
gocv_core.i:279: Warning 516: using cv::Mat::at< float >() instead.
gocv_core.i:279: Warning 516: Overloaded method cv::Mat::at< float >(int) ignored,
gocv_core.i:279: Warning 516: using cv::Mat::at< float >(int) const instead.
gocv_core.i:279: Warning 516: Overloaded method cv::Mat::at< float >(int const *) const ignored,
gocv_core.i:279: Warning 516: using cv::Mat::at< float >(int const *) instead.
gocv_core.i:279: Warning 516: Overloaded method cv::Mat::at< float >(int) const ignored,
gocv_core.i:279: Warning 516: using cv::Mat::at< float >(int) instead.
gocv_core.i:279: Warning 516: Overloaded method cv::Mat::at< float >(cv::Point) const ignored,
gocv_core.i:279: Warning 516: using cv::Mat::at< float >(cv::Point) instead.
gocv_core.i:279: Warning 516: Overloaded method cv::Mat::at< float >(int,int) const ignored,
gocv_core.i:279: Warning 516: using cv::Mat::at< float >(int,int) instead.
gocv_core.i:279: Warning 516: Overloaded method cv::Mat::at< float >(int,int,int) const ignored,
gocv_core.i:279: Warning 516: using cv::Mat::at< float >(int,int,int) instead.
gocv_core.i:280: Warning 516: Overloaded method cv::Mat::at< double >() const ignored,
gocv_core.i:280: Warning 516: using cv::Mat::at< double >() instead.
gocv_core.i:280: Warning 516: Overloaded method cv::Mat::at< double >(int) ignored,
gocv_core.i:280: Warning 516: using cv::Mat::at< double >(int) const instead.
gocv_core.i:280: Warning 516: Overloaded method cv::Mat::at< double >(int const *) const ignored,
gocv_core.i:280: Warning 516: using cv::Mat::at< double >(int const *) instead.
gocv_core.i:280: Warning 516: Overloaded method cv::Mat::at< double >(int) const ignored,
gocv_core.i:280: Warning 516: using cv::Mat::at< double >(int) instead.
gocv_core.i:280: Warning 516: Overloaded method cv::Mat::at< double >(cv::Point) const ignored,
gocv_core.i:280: Warning 516: using cv::Mat::at< double >(cv::Point) instead.
gocv_core.i:280: Warning 516: Overloaded method cv::Mat::at< double >(int,int) const ignored,
gocv_core.i:280: Warning 516: using cv::Mat::at< double >(int,int) instead.
gocv_core.i:280: Warning 516: Overloaded method cv::Mat::at< double >(int,int,int) const ignored,
gocv_core.i:280: Warning 516: using cv::Mat::at< double >(int,int,int) instead.
go build github.com/lazywei/go-opencv/gocv: build output "/var/folders/34/z2z_vp1573g5014m8k7wys100000gn/T/go-build498457648/github.com/lazywei/go-opencv/gocv/_obj/gocv.go" already exists and is not an object file

Elapsed: 2.052s
Result: Error

how to fix this? hope your reply

[deadprogram]

Same problem here...

[deadprogram]

The solution here is to rename the file gocv.go to anything else. The current SWIG builders as called by the Golang compilers produce a conflict with the filename.

[sudhir1527]

Hi deadprogram,
I searched gocv.go file and i did not find it.

I also have same problem

[deadprogram]

I was saying to rename https://github.com/go-opencv/go-opencv/blob/master/gocv/gocv.go to something else like gocvwrapper.go, in order to get around the build problem.

Hope that helps!

Also, please check out my own project https://GoCV.io which is a much more complete OpenCV 3.x wrapper.