Re: random points!

*To*: mathgroup at smc.vnet.net*Subject*: [mg80940] Re: [mg80892] random points!*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Thu, 6 Sep 2007 05:20:47 -0400 (EDT)*Reply-to*: hanlonr at cox.net

surface = Graphics[{Blue, Thickness[0.0079], Line[{{-3.1, 0}, {3, 0}}]}]; halfcir = Graphics[{Red, Thickness[0.0079], Circle[{0, 0}, 0.6, {Pi, 2*Pi}]}]; randpoints = Table[Graphics[{PointSize[0.012], Point[Random[Real, 0.56]*{Cos[#], Sin[#]} &[ Random[Real, {Pi, 2 Pi}]]]}], {300}]; Show[surface, halfcir, randpoints, AspectRatio -> Automatic] Bob Hanlon ---- dimitris <dimmechan at yahoo.com> wrote: > Hello. > > I have the following drawing > (it is just a part of a bigger figure...) > > In[125]:= > surface = Graphics[{Thickness[0.0079], Line[{{-3.1, 0}, {3, 0}}]}]; > halfcir = Graphics[{Thickness[0.0079], Circle[{0, 0}, 0.6, {Pi, > 2*Pi}]}]; > randpoints = Table[Graphics[{PointSize[0.012], Point[{Random[Real, > {-0.42, 0.42}], Random[Real, {-0.01, -0.47}]}]}], {300}]; > Show[surface, halfcir, randpoints, AspectRatio -> Automatic]; > > How can I add as much points as possible inside the half-circle > (so that there are not so big white regions as in the previous > drawing) > assuring that they are not situated outside it? > > I think something has to be modified for randpoints above in order to > be included > a rule but currently I can't think sth. > > Thanks > Dimitris > >