LOGIC101 You can specify multiple conditions within the same Maths patch.
"a > 3" is one condition, the result of which is true when a is higher than 3. "a < 8" is another condition, the result of which is true when a is below 8. Use a boolean operator (&& aka "Logical AND") to specify that you want BOTH of these conditions to be true to generate a final true output (eg. a is more than 3 and less than 8): (a > 3) && (a < 8) A different boolean operator (|| aka "Logical OR") might be used to specify that you either EITHER of two conditions to be true to generate a final true output (eg. a is less than 2 or more than 7): (a < 2) || (a > 7) You can combine as many operators as you like into a single expression, just be careful to use parenthesis to place brackets around groups of conditions so that it is unambiguous what you intend with your logic. Get this wrong, and you will experience bugs and unintended behaviour. ((a < 2) || (a > 7)) && (a == 4) Also, be careful you don't accidentally use & and | which mean completely different things, the subject of which will be covered in a future tutorial. Class dismissed. > On 18 Mar 2018, at 20:20, Xoán-Xil López <xoan...@gmail.com> wrote: > > Thanks Alastair for your quick answer and for the example, > > I guess I didn´t explain well. I think what I am looking for is different. > When I start the DAW I get in QC an increasing count with the measures > numbers (1, 2 , 3, 4, 5, 6, 7, 8, etc...). > > So, if I create, for example, a math expression "a > 3" when I get 4 and the > Math expression object is conected to the "enable" circle conector the circle > patch is enabled. That works great. > > But I can not imagine how to create an Math expression for send 0 or disable > the circle object when the counter reaches, for example, 8 in the count? > > Sorry if I am not beeing very descriptive. > > > > 2018-03-18 16:00 GMT+01:00 Alastair Leith <usefuldesign...@gmail.com > <mailto:usefuldesign...@gmail.com>>: > I’m not sure what form the time signature or “measures informations” are > expressed in. > > but if you are talking about 4/4 or 3/4 or 6/8 or 11/12 type or time > signatures this come shows you how. > > I’m assuming the time signature comes in “3, 4” type of string and I split it > with a String Components patch. > > > > hope that helps > > Best > Alastair > > Alastair I Leith > > Useful Design > +61 432 889 831 > 11 Mouquet Vista > White Gum Valley > WA 6162 Australia > >> On 18 Mar 2018, at 10:59 pm, Xoán-Xil López <xoan...@gmail.com >> <mailto:xoan...@gmail.com>> wrote: >> >> Hi, >> >> I need some help with a mathematical expresion. >> >> I am getting the measures from a DAW with midiclock receiver and I would >> like to enable and dissable elements inside Quartz Composer using the >> mesaures informations. >> >> For instance, I want a video enable in measure 3 and disable in measure >> 10... How do I write this as a Math expression. >> >> Thanks in advance >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com >> <mailto:Quartzcomposer-dev@lists.apple.com>) >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/quartzcomposer-dev/usefuldesign.au%40gmail.com >> >> <https://lists.apple.com/mailman/options/quartzcomposer-dev/usefuldesign.au%40gmail.com> >> >> This email sent to usefuldesign...@gmail.com >> <mailto:usefuldesign...@gmail.com> > > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/quartzcomposer-dev/adrian%40clayinteractive.co.uk > > This email sent to adr...@clayinteractive.co.uk
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