块引用BlockReference的ScaleFactors无法修改块内的属性比例？
本帖最后由 zjh2785 于 2018-4-16 19:08 编辑BlockReference br = tr. GetObject(id, OpenMode. ForWrite) as BlockReference;
br. ScaleFactors = new Scale3d(100, 100, 1);
命令完成之后 块里面的直线、填充图案这些可以按比例缩放了，而且CAD的属性面板里面也显示成了100,100,1。
但文字的大小、对齐点什么的还是在原来的位置。
已经解决了，完整代码：
public static void SetBlockScale (string blockName, double scale)
{
Document doc = AcadApp. DocumentManager. MdiActiveDocument;
Database db = doc. Database;
using (DocumentLock docLock = doc. LockDocument( ))
using (Transaction tr = db. TransactionManager. StartTransaction( ))
{
BlockTable bt = tr. GetObject(db. BlockTableId, OpenMode. ForRead) as BlockTable;
if (bt. Has(blockName))
{
BlockTableRecord btr = tr. GetObject(bt , OpenMode. ForRead) as BlockTableRecord;
ObjectIdCollection ids = btr. GetBlockReferenceIds(true, true);
foreach (ObjectId id in ids)
{
BlockReference br = tr. GetObject(id, OpenMode. ForWrite) as BlockReference;
double oldScale = br.ScaleFactors.X;
br. ScaleFactors = new Scale3d(scale, scale, 1);
foreach (ObjectId i in br. AttributeCollection)
{
AttributeReference att = tr. GetObject(i, OpenMode. ForWrite) as AttributeReference;
Matrix3d mat = Matrix3d. Scaling( scale / oldScale, br. Position);
att. TransformBy(mat);
}
}
tr. Commit( );
}
}
}
本帖最后由 zjh2785 于 2018-4-16 19:03 编辑
解决了
BlockReference br = tr. GetObject(id, OpenMode. ForWrite) as BlockReference;double oldScale = br.ScaleFactors.X;
br. ScaleFactors = new Scale3d(scale, scale, 1);
foreach (ObjectId i in br. AttributeCollection)
{
AttributeReference att = tr. GetObject(i, OpenMode. ForWrite) as AttributeReference;
Matrix3d mat = Matrix3d. Scaling( scale / oldScale, br. Position);
att. TransformBy(mat);
}
支持一下{:1_1:}
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