Article View: comp.windows.interviews
Article #1592More info on zooming problem
From: Jay Gowdy
Date: Wed, 27 Jan 1993 19:39
Date: Wed, 27 Jan 1993 19:39
38 lines
1362 bytes
1362 bytes
In case you're interested, the two different transformation matrices that erroneously result in the same key in tx_key are:
(class ivTransformer) =
{
unsigned int ivResource::refcount_ = 0x1;
osboolean identity_ = 0x0;
float mat00 = 4.096000e-01;
float mat01 = 0.000000e+00;
float mat10 = 0.000000e+00;
float mat11 = 4.096000e-01;
float mat20 = 1.359938e+02;
float mat21 = 3.403380e+01;
}
x = 1152.960
y = 1152.960
and
(class ivTransformer) =
{
unsigned int ivResource::refcount_ = 0x1;
osboolean identity_ = 0x0;
float mat00 = 3.276800e-01;
float mat01 = 0.000000e+00;
float mat10 = 0.000000e+00;
float mat11 = 3.276800e-01;
float mat20 = 1.832190e+02;
float mat21 = 8.125903e+01;
}
x = 1152.960
y = 1152.960
Both result in a key value of 8487168, even though they are at different scales.
Jay
Technical Details
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!das-news.harvard.edu!cantaloupe.srv.cs.cmu.edu!crabapple.srv.cs.cmu.edu!IUS4.IUS.CS.CMU.EDU!jayg From: jayg+@CS.CMU.EDU (Jay Gowdy) Newsgroups: comp.windows.interviews Subject: More info on zooming problem Message-ID: <C1J2Lw.F33.1@cs.cmu.edu> Date: 27 Jan 93 19:39:22 GMT Article-I.D.: cs.C1J2Lw.F33.1 Sender: news@cs.cmu.edu (Usenet News System) Organization: Carnegie Mellon University Lines: 38 Nntp-Posting-Host: ius4.ius.cs.cmu.edu