(获取实体id集合时)过滤器的使用及检测(过滤器引用)对象的类型名称 - 精华帖集合
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(获取实体id集合时)过滤器的使用及检测(过滤器引用)对象的类型名称
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1.过滤器常用操作符组合
(1) a或b
操作符:"<or" "a" "b" "or>"
例集合包含 多断线(对像类型名称为lwpolyline) 或 块参照(对像类型名称为insert)
typedvalue[] ftv = new typedvalue[]
{
new typedvalue((int)dxfcode.operator , "<or"),
new typedvalue((int)dxfcode.start, "lwpolyline") ,
new typedvalue((int)dxfcode.start, "insert"),
new typedvalue((int)dxfcode.operator , "or>")
};
selectionfilter xfilter= new selectionfilter(ftv);
(2) a和b
操作符:"<and" "a" "b" "and>"
例: 在“ping"层的直线。(是直线并且所在层名称为“ping“)
typedvalue[] ftv = new typedvalue[]
{
new typedvalue((int)dxfcode.operator , "<and"),
new typedvalue((int)dxfcode.start, "line") ,
new typedvalue((int)dxfcode.layername, "ping"),
new typedvalue((int)dxfcode.operator , "and>")
};
selectionfilter xfilter= new selectionfilter(ftv);
(3)其它如 (a和b)或者(c和d)的,模式为:
"<or"
"<and"
“ a”
“ b ”
"and>"
"<and"
“ c”
“ d ”
"and>"
"or>"
2.在使用过滤器过滤指定对象时,需要设置对象类型名称,如参照块“insert”,多段线“lwpolyline”
不知dxfname时可以如下做测试来获取
[commandmethod("getentsdxfanme", commandflags.session)]
public void getentsdxfanme()
{
using (documentlock doclock = autodesk.autocad.applicationservices.application.documentmanager.mdiactivedocument.lockdocument())
{
objectid obt = getselectfirstentityid();
if (!obt.isnull)
{
database db = hostapplicationservices.workingdatabase;
using (transaction trans = db.transactionmanager.starttransaction())
{
entity ent = (entity)trans.getobject(obt , openmode.forwrite);
ed.writemessage(ent.getrxclass().dxfname .tostring () );
trans.commit();
}
}
}
}
public static objectid getselectfirstentityid() //通过鼠标获取单个实体id
{
using (documentlock doclock = autodesk.autocad.applicationservices.application.documentmanager.mdiactivedocument.lockdocument())
{
editor ed = application.documentmanager.mdiactivedocument.editor;
database db = hostapplicationservices.workingdatabase;
objectid o1 = new objectid();
promptselectionoptions selectionop = new promptselectionoptions();
promptselectionresult ssres = ed.getselection(selectionop);
if (ssres.status == promptstatus.ok)
{
o1 = ssres.value[0].objectid;
}
return o1;
}
}
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3.cad开发需要不继学习哈,以上算为论坛添块瓦,为初学者抛块砖哈
很好,大家一起学习.
好文!
路漫漫其修远兮,吾将上下而求索!