求教关于zoom e的问题

mater789

请问哪位大哥知道

zoom e

它具体作了什么

用arx怎么实现他(不调用ads_command)

sieben

void nsp::zoomExtents()
{
 //acedCommand(RTSTR, "_ZOOM", RTSTR, "_E",RTNONE);

//上一行为命令方式实现Zoom Extents
 AcDbViewTableRecord view;
 acdbHostApplicationServices()->workingDatabase()->updateExt(TRUE);
 AcGePoint3d max =acdbHostApplicationServices()->workingDatabase()->extmax();
 AcGePoint3d min = acdbHostApplicationServices()->workingDatabase()->extmin();
 
 AcGePoint2d max_2d (max[X], max[Y]);
 AcGePoint2d min_2d (min[X], min[Y]);
 // now set the view centre point
 view.setCenterPoint (min_2d + (max_2d - min_2d) / 2.0);
 // now height and width of view
 view.setHeight(max_2d[Y] - min_2d[Y]);
 view.setWidth (max_2d[X] - min_2d[X]);
 // set the view
 acedSetCurrentView (&view, NULL);
}

zoom e 我也不知道怎么准确描述

mater789

这样做是zoom a

不是zoom e