ObjectArx 文本获取文字的实际宽度

admin1

[code]/*!
* @brief 获取文本实体真实宽度
*
* @param const AcDbObjectId& id 文本实体id
* @return double 返回文本实体实际宽度，id所属实体不是文本实体返回0.0
*
* @author liujieda
*/
double getRealWidth(const AcDbObjectId& id)
{
    AcDbEntity * pEntity;
    Acad::ErrorStatus es = acdbOpenAcDbEntity(pEntity, id, AcDb::kForRead);

    double width = 0.0;
    if (pEntity->isA() == AcDbMText::desc())
    {
        AcDbMText *pMText = AcDbMText::cast(pEntity);
        width = pMText->actualWidth();
    }
    else if (pEntity->isA() == AcDbText::desc())
    {
        AcDbText *pText = AcDbText::cast(pEntity);
        width = pText->widthFactor();
    }
    return width;
}[/code]