OBJECT ARX 操作图层
//添加图层
static void TESTaddlayercmd(){
CString strLayerName;
if(acedGetString(Adesk::kFalse,采用T("\n输入层名称"),strLayerName.GetBuffer()) != RTNORM){
return;
}
获得当前图形的层表
AcDbLayerTable* pLayerTbl;
acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForWrite);
是否已经包含制定的层表记录
if(pLayerTbl->has(strLayerName)){
pLayerTbl->close();
return;
}
创建新的层表记录
AcDbLayerTableRecord* pLayerTblRcd;
pLayerTblRcd = new AcDbLayerTableRecord();
pLayerTblRcd->setName(strLayerName);
将新创建的层表记录添加到层表中
AcDbObjectId layerTblRcdId;
pLayerTbl->add(layerTblRcdId,pLayerTblRcd);
acdbHostApplicationServices()->workingDatabase()->setClayer(layerTblRcdId);
pLayerTblRcd->close();
pLayerTbl->close();
}
//修改图层颜色============================
static void TESTlayercolorcmd(){
CString strLayerName;
if(acedGetString(Adesk::kFalse,采用T("\n输入图层的名称:"),strLayerName.GetBuffer()) != RTNORM){
return;
}
获得当前的图层列表
AcDbLayerTable* pLayerTbl;
acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForRead);
判断是否包含指定名称的层表记录
if(!pLayerTbl->has(strLayerName)){
pLayerTbl->close();
return;
}
获得制定层表记录的指针
AcDbLayerTableRecord* pLayerTblRcd;
pLayerTbl->getAt(strLayerName,pLayerTblRcd,AcDb::kForWrite);
弹出颜色对话框
AcCmColor oldColor = pLayerTblRcd->color();
int nCurColor = oldColor.colorIndex();//旧的颜色
int nNewColor = oldColor.colorIndex();//用户选择的颜色
if(acedSetColorDialog(nNewColor,Adesk::kFalse,nCurColor)){
AcCmColor color;
color.setColorIndex(nNewColor);
pLayerTblRcd->setColor(color);
}
pLayerTblRcd->close();
pLayerTbl->close();
}
//删除图层
static void TESTdellayercmd(){
CString strLayerName;
if(acedGetString(Adesk::kFalse,采用T("\n输入图层名称"),strLayerName.GetBuffer()) != RTNORM){
return;
}
获得当前的图层列表
AcDbLayerTable* pLayerTbl;
acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForRead);
判断是否包含指定名称的层表记录
if(!pLayerTbl->has(strLayerName)){
pLayerTbl->close();
return;
}
获得制定层表记录的指针
AcDbLayerTableRecord* pLayerTblRcd;
pLayerTbl->getAt(strLayerName,pLayerTblRcd,AcDb::kForWrite);
pLayerTblRcd->erase();
pLayerTblRcd->close();
pLayerTbl->close();
}
导出层的信息到文本文件中
static void TESTexportlayercmd(){
//创建要导出的文本文件
CStdioFile f;
CFileException e;
CString pFileName;
pFileName = 采用T("D:\\layer.txt");
if(!f.Open(pFileName.GetString(),CFile::modeCreate|CFile::modeWrite,&e)){
acutPrintf(采用T("\n创建文件失败"));
return;
}
获得层表指针
AcDbLayerTable *pLayerTbl;
AcDbLayerTableRecord* pLayerTblRcd;
acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForRead);
使用遍历器访问每条层表记录
AcDbLayerTableIterator* pItr;
pLayerTbl->newIterator(pItr);
for(pItr->start();!pItr->done();pItr->step()){
pItr->getRecord(pLayerTblRcd,AcDb::kForRead);
输出图层的信息
CString strLayerInfo;
TCHAR* layerName;
pLayerTblRcd->getName(layerName);
名称
strLayerInfo = layerName;
free(layerName);
strLayerInfo.Append(采用T(","));
颜
CString strColor;
AcCmColor color = pLayerTblRcd->color();
strColor.Format(采用T("%d"),color.colorIndex());
strLayerInfo.Append(strColor);
线型
CString strLineType;
AcDbLinetypeTableRecord* pLinetypeTblRcd;
acdbOpenObject(pLinetypeTblRcd,pLayerTblRcd->linetypeObjectId(),AcDb::kForRead);
TCHAR* linetypeName;
pLinetypeTblRcd->getName(linetypeName);
pLinetypeTblRcd->close();
strLineType = linetypeName;
free(linetypeName);
strLayerInfo.Append(strLineType);
strLayerInfo.Append(采用T(","));
线宽
CString strLineWeight;
AcDb::LineWeight lineWeight = pLayerTblRcd->lineWeight();
strLineWeight.Format(采用T("%d"),lineWeight);
strLayerInfo.Append(strLineWeight);
/写文件
f.WriteString(strLayerInfo);
f.WriteString(采用T("\n"));
pLayerTblRcd->close();
}
delete pItr;
pLayerTbl->close();
}
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