Autocad C++二次开发 查询所有座标标注

要查询Autocad中的所有座标标注，可以使用AutoCAD的C++二次开发API。具体步骤如下：

1. 获取当前文档对象：

Acad::ErrorStatus es;
AcDbDatabase *pDb = acdbHostApplicationServices()->workingDatabase();
if (pDb == NULL) return;

2. 遍历所有的实体：

AcDbBlockTable *pBlockTable;
es = pDb->getBlockTable(pBlockTable, AcDb::kForRead);
if (es != Acad::eOk) return;

AcDbBlockTableRecord *pBlockTableRecord;
es = pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord, AcDb::kForRead);
if (es != Acad::eOk) {
    pBlockTable->close();
    return;
}

AcDbObjectIdArray objIds;
pBlockTableRecord->getBlockReferenceIds(objIds);
pBlockTableRecord->close();

for (int i = 0; i < objIds.length(); i++) {
    AcDbEntity *pEntity;
    es = acdbOpenObject(pEntity, objIds[i], AcDb::kForRead);
    if (es != Acad::eOk) continue;

    // 判断实体是否为座标标注
    if (pEntity->isKindOf(AcDbDimension::desc())) {
        AcDbDimension *pDim = AcDbDimension::cast(pEntity);
        if (pDim->dimensionType() == AcDb::kDimOrdinate) {
            // 处理座标标注
        }
    }

    pEntity->close();
}

3. 处理座标标注实体：

// 获取座标标注位置
AcGePoint3d pt;
AcDbOrdinateDimension *pOrdDim = AcDbOrdinateDimension::cast(pDim);
if (pOrdDim->xLine1Point(pt) != Acad::eOk) continue;

// 处理座标标注

以上代码只是一个简单的示例，具体实现可能需要根据实际情况进行修改。