在我需要按顺序推导某些要素的情况下,我正在使用<条码>cvSeqPush<> 代码”,但我没有看到其第二条理由<条码>const void * 要素,我需要推延一个类型的<条码>cvPoint。
如何在C这样做?
这种方法必须推动你掌握的任何数据顺序,但就你而言,在我猜测你的顺序时,你必须指出这种数据,以便有一个正确的方案。
CvPoint pnt = cvPoint(x,y);
cvSeqPush(srcSeq, (CvPoint *)&pnt);
Something like this should work for you, just point to some data the sequence needs. If you need something more specific to your case you should post some code.
A couple things need to be added: 1. you will need to allocate memory to store your srcSeq 2. release memory when you re done using srcSeq
CvMemStorage* srcSeq_storage = cvCreateMemStorage(0);
CvSeq* srcSeq = cvCreateSeq(0, 大小(CvSeq), 体积(CvPoint), srcSeq_storage;
/现在,把要点推向弧 eq
cvSeqPush(srcSeq,&pnt);
/ 不要忘记记忆
cvReleaseMemStorage(&srcSeq_storage);
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