534                   CvMat* dpdt, CvMat* dpdf,  in cvProjectPoints2()  argument
675     if( dpdt )  in cvProjectPoints2()
677         if( !CV_IS_MAT(dpdt) ||  in cvProjectPoints2()
678             (CV_MAT_TYPE(dpdt->type) != CV_32FC1 &&  in cvProjectPoints2()
679             CV_MAT_TYPE(dpdt->type) != CV_64FC1) ||  in cvProjectPoints2()
680             dpdt->rows != count*2 || dpdt->cols != 3 )  in cvProjectPoints2()
683         if( CV_MAT_TYPE(dpdt->type) == CV_64FC1 )  in cvProjectPoints2()
685             _dpdt.reset(cvCloneMat(dpdt));  in cvProjectPoints2()
747     calc_derivatives = dpdr || dpdt || dpdf || dpdc || dpdk;  in cvProjectPoints2()
909     if( _dpdt != dpdt )  in cvProjectPoints2()
910         cvConvert( _dpdt, dpdt );  in cvProjectPoints2()
1882         CvMat *dpdrot = &dpdrot_hdr, *dpdt = &dpdt_hdr, *dpdf = 0, *dpdc = 0, *dpdk = 0;  in cvStereoCalibrate()  local
1965                             &tmpimagePoints, dpdrot, dpdt, dpdf, dpdc, dpdk,  in cvStereoCalibrate()
3166     CvMat dpdrot, dpdt, dpdf, dpdc, dpddist;  in projectPoints()  local
3191         pdpdt = &(dpdt = jacobian.colRange(3, 6));  in projectPoints()