yang686526

交互问题
www.dimcax.com
交互问题
我想做一个用户交互的巷道生成过程，点走到哪巷道就拉到哪可是交互这没做好，起始点总是同一点，请大家帮忙 using system; using system.collections; using autodesk.autocad.runtime; using autodesk.autocad.databaseservices; using autodesk.autocad.geometry; using autodesk.autocad.applicationservices; using autodesk.autocad.editorinput; using autodesk.autocad.colors; using dbtransman = autodesk.autocad.databaseservices.transactionmanager; [assembly: commandclass(typeof(巷道.commands))] namespace 巷道 { /// /// summary description for commands. /// public class commands { public commands() { // // todo: add constructor logic here // } // define command "asdkcmd1" [commandmethod("hd")] static public void test() { database db=hostapplicationservices.workingdatabase; editor ed=application.documentmanager.mdiactivedocument.editor; promptpointoptions ppo1 = new promptpointoptions("请选择点"); promptpointresult ppr1 = ed.getpoint(ppo1); point3d pt1 = ppr1.value; nextpoint: promptpointoptions ppo2 = new promptpointoptions("请选择下一点"); promptpointresult ppr2 = ed.getpoint(ppo2); if (ppr2.status == promptstatus.cancel) return; ppo2.usebasepoint = true; point3d pt2 = ppr2.value; if(ppo2.basepoint.x==0) ppo2.basepoint = pt1; vector3d vvv = ppo2.basepoint.getvectorto(pt2); line line = new line(ppo2.basepoint, pt2); region region = re(vvv, ppo2.basepoint); solid3d land = new solid3d(); land.extrudealongpath((region)region,line,0); appendentity(land); point3d pt3 = new point3d(); pt3 = pt2; ppo2.basepoint = pt3; goto nextpoint; } public static objectid appendentity(entity ent) { database db = hostapplicationservices.workingdatabase; objectid entid; using (transaction trans = db.transactionmanager.starttransaction()) { blocktable bt = (blocktable)trans.getobject(db.blocktableid, openmode.forread); blocktablerecord btr = (blocktablerecord)trans.getobject(bt[blocktablerecord.modelspace], openmode.forwrite); entid = btr.appendentity(ent); trans.addnewlycreateddbobject(ent, true); trans.commit(); } return entid; } //创建巷道面域 public static region re(vector3d vv, point3d pt) { arc arc=new arc(pt,vv,5,math.pi,0.75*math.pi); point3d pts=new point3d(); point3d pte=new point3d(); pte=arc.startpoint; pts=arc.endpoint; line line=new line(pts,pte); dbobjectcollection ent = new dbobjectcollection(); ent.add(arc); ent.add(line); dbobjectcollection egion = region.createfromcurves(ent); region region = (region)egion[0]; return region; } } }
在学习编程前，应该先好好学学语文！
逻辑上比较混乱. 我觉的最好不要用pt1 pt2 pt3 之类的命名方法,把自己都搞糊涂了吧. basepoint是以前一个点为基点,你可以设置一个point3d ptprev,ptcurrent, 表示前一个点和要输入的点,可以设置basepoint为ptprev,但要注意随时注意更新它的值
总能把手机放到我自己找不到的地方...
难以说清楚就贴个截图下来看看