Function getNativePoint

jni/platform/jni_bridge.cpp:27–38

This is the Point that reside in android.graphic.Point, not org.opencv.core.Point

// This is the Point that reside in android.graphic.Point, not org.opencv.core.Point
cv::Point2f getNativePoint(JNIEnv *env, jobject _point)
{
	jclass class_PointF = env->FindClass("android/graphics/PointF");
	jfieldID field_x = env->GetFieldID(class_PointF, "x", "F");
	jfieldID field_y = env->GetFieldID(class_PointF, "y", "F");
	assert(class_PointF != nullptr);
	assert(field_x != nullptr && field_y != nullptr);
	
	jfloat x = env->GetFloatField(_point, field_x);
	jfloat y = env->GetFloatField(_point, field_y);
	return cv::Point2f(x, y);
}

std::vector<cv::Point2f> getNativePointArray(JNIEnv *env, jobjectArray _points)
{