[PD] video multi image detection and red circle

[IOhannes m zmoelnig]

Jose Luis Santorcuato wrote:
> Dear friends... i make a tracking controller for video, but in the Gem
> window always appear the red circle with the cross... i want view and
> control other videos with tracking... but always de red
> circle...depth???gemhead -1??? gemwin-1??? i can measure the movement.
> I use Mac Intel.

i am not sure what you are talking about.

it seems like you are seeing a red circle with a cross.
this means that your patch is drawing a red circle with a cross. (ther 
eis no code in Gem itself that will magically (without a representation 
in your patch) draw things onto your screen).
if you want to disable a certain part of your rendering patch you can:
- delete the objects that draw the unwanted thingies
- disable the unwanted thingies by either:
   - using [spigot] (or other ways of cuttin the connection ) somewhere 
between [gemhead] and the object(s) that actually draw (e.g. [circle]
   - sending [0( to the [gemhead] in question (which will turn the 
gemhead of until you turn it on again)

the most likely pitfall is that all [gemhead]s within the current 
environment (that is: running instance of Pd) are taken into account for 
rendering; so if you are opening a help-patch for a certain object, this 
might well draw onto your carefully crafted Gem-scenery.

fgamsrd
IOhannes
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