Cycling 74 » Topic: get pen location in jit.qt.sketch http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/feed Wed, 19 Jun 2013 09:25:22 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-25995 <![CDATA[get pen location in jit.qt.sketch]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-25995 Tue, 16 May 2006 12:41:58 +0000 mattyo Greetings,

I’ve been trying to figure out how to query the jit.qt.sketch object
to give me its current drawing position, something along the lines of
the “getpenloc” message one would send to an lcd. If it’s in the
docs its buried deep. Does anyone know the answer to this off the
top of their heads?

Thanks,

M

]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77181 <![CDATA[Re: get pen location in jit.qt.sketch]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77181 Tue, 16 May 2006 18:17:24 +0000 Joshua Kit Clayton This is not possible. You will need to keep track of the incoming
drawing commands.

-Joshua

]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77182 <![CDATA[Re: get pen location in jit.qt.sketch]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77182 Tue, 16 May 2006 20:30:43 +0000 mattyo Ouch, that hurts. Would there be some other way of determining if
the object was drawing beyond the visible GL world?

Thanks,

M

]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77183 <![CDATA[Re: get pen location in jit.qt.sketch]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77183 Tue, 16 May 2006 20:43:42 +0000 Joshua Kit Clayton On May 16, 2006, at 1:30 PM, mattyo wrote:

> Ouch, that hurts. Would there be some other way of determining if
> the object was drawing beyond the visible GL world?

If you can record your “movetos” and concatenate your matrix
transformations (glposition/scale/rotate) appropriately, you will
have a point. You can then use the JS accessible worldtoscreen to
determine if this point is in your window. In a future version
jit.gl.render will have worldtoscreen/screentoworld available as part
of the patcher.

-Joshua

]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77184 <![CDATA[Re: get pen location in jit.qt.sketch]]> http://cycling74.com/forums/topic/get-pen-location-in-jit-qt-sketch/#post-77184 Wed, 17 May 2006 00:25:52 +0000 mattyo Thanks for the help — I predict wailing an gnashing of teeth in my
future, but at least I’ve got a place to start….

M

]]>