【转帖】odabstractviewpezoomextents90 help
 

odabstractviewpe::zoomextents() help
odabstractviewpe::zoomextents() help
hi,
the new odabstractviewpe class has the following methods:
code:
virtual bool odabstractviewpe::viewextents(const odrxobject* pvp, odgeboundblock3d& extents) const
virtual bool odabstractviewpe::zoomextents(odrxobject* pvp, const odgeboundblock3d* pviewextents = 0) const
unfortunately the 1.13 documentation does not describe what the input parameters mean, and more importantly what the boolean return value means.
can someone please clarify the meaning of the input and return values?
regards,
sijmen.
hi,
bool viewextents(const odrxobject* pvp, odgeboundblock3d& extents) const;
calculates eye extents of giving view object and places result in 2nd parameter, returns false if extents is empty. the 1st parameter is view object that supports pe (protocol extension) being called (for now - objects of class odgsview, oddbviewport, oddbabstractviewtablerecord and the derivatives).
bool zoomextents(odrxobject* pvp, const odgeboundblock3d* pviewextents = 0) const;
modifies giving view object to fit giving bounding block defined in eye cs. if 2nd parameter is null then implementation of this function calls previous function to calculate extents to set and propagates its result. if 2nd parameter is not null, then returned value is meaningless.