yang686526

[求助]怎么样使用acdbpolyline里面的segtype enum来画圆弧多段线
[求助]怎么样使用acdbpolyline里面的segtype enum来画圆弧多段线
怎么样使用acdbpolyline里面的segtype enum，进而画出出圆弧多段线，默认的枚举等于kline，请问怎么样改变为karc画出圆弧多段线呢
万分感激
我的部分代码如下：
acdbpolyline* ppl = new acdbpolyline(12);
acdbpolyline::segtype = acdbpolyline::karc;
ppl->addvertexat(0,polylinepts[3].convert2d(acgeplane::kxyplane));
ppl->addvertexat(1,cntrpt1.convert2d(acgeplane::kxyplane));
ppl->addvertexat(2,polylinepts[0].convert2d(acgeplane::kxyplane));
acdbblocktable* pbt;
acdbhostapplicationservices()->workingdatabase()->getblocktable(pbt,acdb::kforread);
acdbblocktablerecord* pbtr;
pbt->getat(acdb_model_space,pbtr,acdb::kforwrite);
pbt->close();
pbtr->appendacdbentity(ppl);
ppl->close();
pbtr->close();