RE: Re: Text Statements in 3D Graphics
- To: mathgroup at smc.vnet.net
- Subject: [mg31593] RE: [mg31573] Re: Text Statements in 3D Graphics
- From: "David Park" <djmp at earthlink.net>
- Date: Thu, 15 Nov 2001 05:52:26 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hi Jens, But I am proposing that if location in Text[text,location,...] is hidden then the entire text is suppressed. That seems to be simple and reasonable. Mathematica would only have to check if a single point is hidden. David Park djmp at earthlink.net http://home.earthlink.net/~djmp/ > From: Jens-Peer Kuska [mailto:kuska at informatik.uni-leipzig.de] To: mathgroup at smc.vnet.net > > Hi, > > this can't work because, true 3d text would require > that the outlines of the characters in Text[] are converted into > 3d polygones, otherwise Mathematica's hidden line removal can't find out > if the polygons from the characters are hidden by any other polygon. > > Regards > Jens > > David Park wrote: > > > > Dear MathGroup > > > > Mathematica treats text in 3D graphics so that it is projected > forward and > > is always visible. In other words, text is never hidden behind > a surface. > > However, this is often undesirable. Suppose one wishes to label certain > > points on a 3D object and then rotate it with SpinShow. It is > better not to > > display the text labels that are behind the surface. Otherwise the eye > > naturally attaches the label to the part of the surface that > can be seen, > > not to speak of text clutter if there are a number of labeled points. It > > would be much nicer if there were an option to suppress Text > statements if > > the application point is hidden. Perhaps this should even be the normal > > behavior. Text in 3D which should always show can be added with > the Epilog > > option. > > > > David Park > > djmp at earthlink.net > > http://home.earthlink.net/~djmp/ >