【转帖】新手练习作品2：jig动态变换图元。 - 精华帖集合
 

新手练习作品2：jig动态变换图元。 - 精华帖集合
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新手练习作品2：jig动态变换图元。
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using system;
using autodesk.autocad.applicationservices;
using autodesk.autocad.runtime;
using autodesk.autocad.databaseservices;
using autodesk.autocad.editorinput;
using autodesk.autocad.geometry;
using system.collections.generic;
namespace fsxm.acad
{
//jig动态变换图元
public class fsxm : drawjig
{
database db = hostapplicationservices.workingdatabase;
editor ed = application.documentmanager.mdiactivedocument.editor;
selectionset ss;
blockreference insert;
point3d minpt, oldpt;
double width, higth;
[commandmethod("trans", commandflags.usepickset)]
public void trans()
{
blocktable bt;
promptselectionoptions sop = new promptselectionoptions();
sop.messageforadding = "选择你要变换的东东";
sop.rejectobjectsonlockedlayers = true;
promptselectionresult srt = ed.getselection(sop);
if (srt.status != promptstatus.ok) return;
ss = srt.value;
using (transaction trans = db.transactionmanager.starttransaction())
{
//做块
blocktablerecord btr;
btr = new blocktablerecord();
btr.name = "*u";
//btr.origin = prt.value;
bt = (blocktable)trans.getobject(db.blocktableid, openmode.forwrite);
bt.add(btr);
trans.addnewlycreateddbobject(btr, true);
//块中图元
foreach (selectedobject sobj in ss)
{
entity ent = (entity)trans.getobject(sobj.objectid, openmode.forread);
entity copy = (entity)ent.clone();
btr.appendentity(copy);
trans.addnewlycreateddbobject(copy, true);
ent.highlight();//高亮要托动的东东
}
//算出块大小
insert = new blockreference(new point3d(), btr.id);
extents3d box = insert.geometricextents;
vector3d v = box.maxpoint.getvectorto(box.minpoint);
width = v.x;
higth = v.y;
//改下块原点
btr.origin = minpt = box.minpoint;
insert.position = minpt;
//递交
trans.commit();
}
//开始托动
promptresult var = ed.drag(this);
if (var.status != promptstatus.ok)
{
//去高亮
using (transaction trans = db.transactionmanager.starttransaction())
{
foreach (selectedobject obj in ss)
{
entity ent = (entity)trans.getobject(obj.objectid, openmode.forwrite);
ent.unhighlight();
}
}
return;
}
using (transaction trans = db.transactionmanager.starttransaction())
{
//插入打散的块
blocktablerecord mspace = (blocktablerecord)trans.getobject(bt["*model_space"], openmode.forwrite);
dbobjectcollection exs = new dbobjectcollection();
insert.explode(exs);
foreach (dbobject obj in exs)
{
mspace.appendentity((entity)obj);
trans.addnewlycreateddbobject(obj, true);
}
//删除老线
foreach (selectedobject obj in ss)
{
entity ent = (entity)trans.getobject(obj.objectid, openmode.forwrite);
ent.erase();
}
//递交
trans.commit();
}
}
protected override bool worlddraw(autodesk.autocad.graphicsinterface.worlddraw draw)
{
draw.geometry.draw(insert);
return true;
}
protected override samplerstatus sampler(jigprompts prompts)
{
point3d cur = prompts.acquirepoint("拾取变形目标点").value;
if (oldpt == cur)
return samplerstatus.nochange;
oldpt = cur;
vector3d v = cur.getvectorto(minpt);
double scx = v.x / width;
double scy = v.y / higth;
insert.scalefactors = new scale3d(scx, scy, 1);
return samplerstatus.ok;
}
}
}
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