[ARX]如何把一幅图像中所有的图形颜色变成白色

tongtong · 发表于 2006-10-27 16:18:00

如题

tongtong · 发表于 2006-10-27 16:26:00

Acad::ErrorStatus changeColor(AcDbObjectId entId,Adesk::UInt16 newColor)
{
//打开对象，用于编辑
AcDbEntity *pEntity;
acdbOpenObject(pEntity,entId,AcDb::kForWrite);
//设置新的颜色
pEntity->setColorIndex(newColor);
pEntity->close;
return Acad::eOk;
}
改变一个实体的颜色如上图所示，改变全部的呢？

HuaiYu · 发表于 2006-10-27 20:24:00

要对 AcDbBlockTableRecord 中的 ACDB_MODEL_SPACE进行遍历啊
void TEST()
{
// TODO: Implement the command
// 假设 newColor=1(红色)
int newColor=1;
// 取模型空间=pMS
AcDbBlockTable *pBlockTable;
Acad::ErrorStatus es;
acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pBlockTable,AcDb::kForRead);
AcDbBlockTableRecord *pMS;
pBlockTable->getAt(ACDB_MODEL_SPACE,pMS,AcDb::kForRead);
pBlockTable->close();
// 新建迭代器
AcDbBlockTableRecordIterator *pIter=NULL;
pMS->newIterator(pIter);
if (pIter==NULL)
{
  acutPrintf("\n** Error on the newIterator...");
  pMS->close();
  return;
}
// 遍历迭代器中的 Entity 来改变颜色
for(pIter->start();!pIter->done();pIter->step())
{
  acutPrintf("\n****");
  AcDbEntity *pEnt=NULL;
  // 得到 Entity=pEnt 为读
  pIter->getEntity(pEnt,AcDb::kForRead);
  if(pIter==NULL)
continue;
  // 将状态升级
  if(pEnt->upgradeOpen()!=Acad::eOk)
  {
acutPrintf("\n** one object can't upgradeOpen");
pEnt->close();
continue;
  }
  // 改变颜色
  es=pEnt->setColorIndex(newColor);
  if(es!=Acad::eOk)
acutPrintf("\none object can't change the color");
  pEnt->close();
}
delete pIter;
pMS->close();
}