Re: [PD] CPU Object...
Thanks Chris. I will do this tomorrow as I can't access the project today. How do I check CPU usage? Even if tis isn't relevant, it would be usefuul to know. Thanks again Simon On Sun, Jul 12, 2009 at 6:00 PM, chris clepper cgclep...@gmail.com wrote: A G5 running OSX and GEM can run for months and even years without a crash. Grab the crashlog in the Console app and post the last report for pd. On Sun, Jul 12, 2009 at 12:20 PM, Simon Ball sballm...@googlemail.comwrote: Hi List I am having trouble with an installation. I am projecting a project that uses motion tracking and animation in GEM. After a period of time (minimum 1hrs. max 3hrs.) the program crashes. There is no error message and the program just disappears. This has happened when people have been in the room and when people have not been in the room. The patch creates abstractions that generate the animations when movement is detected. I have attached the patch but not all of the source files. The project is running on a apple G5. OSX not sure which version (rather stupidly, cannot find out until tomorrow, sorry). This maybe a CPU issue, does anyone know how I can read the CPU usage? Having said that, if the project crashes even when no movement is detected. I appreciate that this issue could be caused by a number of things but if anyone has any suggestions I could try, they would be much appreciated. Thanks Simon ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] A question...
Hi Ed, thanks for that. I have played around with using text files to write co-ordinates to an array. However, what I need is more control of the co-ordinates. In your example, whenever I bang the message to start the animation, the 3D ball jumps back to the start and then replays the animation (obviously!). But is it possible to have each animation start from where the last one finished? Or better still, is it possible to manipulate the co-ordinates dynamically? For example, if I record movement which gives me three 'points' within the frame, can I write this to a table then apply it to an animation? I can see how the table arrays work (roughly!), but I want to be able to manipulate the arrays based on user input (mouse, motion sensor etc). Does this make sense? Thanks again for all your time, the PD community in generally has been really helpful, I think I'm just a few steps from being able to achieve what I need, but when you're new to something, every hurdle's a big one! Regards Simon On Fri, May 1, 2009 at 4:13 PM, morph_2...@yahoo.co.uk wrote: Hi Simon, To be honest, I didn't really understand your question at first. It pays to be clear - but I sometimes don't get an answer from the list either. If you make it clear early on that your question is about a specific object - perhaps in the subject line of your email, it may get a better response. You must realise that everything is just a way of storing and transmitting data - numbers and symbols. The co-ordinates you store in the array for splinepath are (floating point number) co-ordinates in the three-dimensional space of the gemwin. So the start and endpoints for your animations are specified by the first set of 3 co-ordinates and the last set of 3 co-ordinates. The co-ordinates in GEM are relative to the centre of the space, so X=0, Y=0, Z=0 sent into a translateXYZ object will send another object (sphere, cube, rectangle etc) to the centre of the gem window. This is why the ball is always at the right-top-front corner of the example I sent you - because the numbers sent into the translateXYZ object are all positive. Change the 40 to -40 in the attached PD patch. A word about arrays: an array is just a list of numbers really. Although it is displayed as a graph in PD, the input to [splinepath 3] takes three numbers from the array at a time, so the one-dimensional graph view in PD is quite useless for visualizing this. If the first set of co-ordinates is set to -1, -1, -1, the graph of the array will display this as a straight line, whereas in fact it is a single point in three dimensional space. So whereas a graph or a list of the array contents might show: -1,-1,-1,0,1,-0.5,2,2,0 the actual structure being read by the [spline_path] object is: Point A: X=-1, Y=-1, Z=-1 Point B: X=0, Y=1, Z=-0.5 Point C: X=2, Y=2, Z=0 Best of luck with it, Ed --- On Fri, 1/5/09, Simon Ball sballm...@googlemail.com wrote: From: Simon Ball sballm...@googlemail.com Subject: Re: A question... To: Ed Kelly morph_2...@yahoo.co.uk Date: Friday, 1 May, 2009, 10:12 AM Thanks Ed, that's definitely given me a clearer view of what spline path does, I certainly have more control now than I did previously. Is there a way to get more precise information to the table arrays, such as defining start and end points for the animation? I have put the question to the list, but I haven't had a response. Perhaps my e-mails are not getting through, but I imagine its either because people are bored of my questions or there is some obvious documentation that I'm missing. Are there any walk through's/tutorials on this kind of animation in GEM? Thanks again for your help, I think Andy is planning to get you in for another workshop at some point, which would be really useful. I've been getting more into PD so have a vast array of questions and should have a better understanding of the answers of the answers you give! Thanks again mate Simon On Thu, Apr 30, 2009 at 5:15 PM, Ed Kelly morph_2...@yahoo.co.uk wrote: Hi Simon... Apologies for the late reply. It is my understanding that [spline_path] interpolates between points in a table. These are read out in multiples, when a number between 0 and 1 is sent into the first inlet corresponding to the position in the table. These are at this stage just numbers. If they are sent to a translateXYZ object then they become position co-ordinates, or if they are sent to a rotateXYZ object they become rotation values in degrees. Since spline_path reads from a table, the values should be stored as triples: x, y and z co-ordinate values can be manipulated by tabwrite objects as long as they are input to the table in series (for each point x, then y, then z). Or if you just want to work in two dimensions, x and y co-ordinates stored as pairs will work. The table size must be divisible
[PD] Array Animations...
Hi there, I sent this the other day and I'm not sure if it got through, apologies if it's a duplicate... Hi list I'm trying to understand how tables/arrays work with animations. As far as I can see, I can place a set of coordinates in a text file and then use an array to animate elements in gem space. I have been looking at various examples, notably [splinepath], which uses [line] to govern the length and speed of the movement. However, I'm struggling to understand the exact relationship between the co-ordinates written in the text file and what actually happens to an image when rendered. Sometimes I change the numbers and the animation stays the same, other times it appears erratic. I've found documentation on how to transform objects in gem, but there seems to be little help in terms of creating more complex animations. If anyone can provide a simple explanation/some pointers or show me where to look, I would very much appreciate it. Mac OSX Intel Core Duo 10.4.11. PD-Extended 0.40.3. Thanks Simon ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Animating with arrays...
Hi list I'm trying to understand how tables/arrays work with animations. As far as I can see, I can place a set of coordinates in text file and then use an array to apply this to elements in a scene. I have been looking at various examples, notably [splinepath], which uses [line] to govern the length and speed of the movement. However, I'm struggling to understand the exact relationship between the co-ordinates written in the text file and what actually happens to an image when rendered. Sometimes I change the numbers and the animation stays the same, other times it appears erratic. I'm trying to trigger animations so that they float and rotate into place. If anyone has any ideas on the best way to approach this, or can direct me to some useful help files, I would really appreciate it. I was looking at a pdf that was packaged with PD-extended called 'GemPrimer'. The documentation was clear and insightful for someone of my level (beginner!) and hoping there might more files like this one... Mac OSX Intel Core Duo 10.4.11. PD-Extended 0.40.3. Thanks Simon ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Multiblob and matrices...
Thanks for the response. However, I am still struggling with this. I probably need a much more basic explanation. Sorry. I assume that the patches you've provided (greatly appreciated) collate the data in someway in order for me to be able to unpack it? However, I'm not sure that I even understand exactly how 'unpack' and 'route' work, which is obviously a problem! If anyone can provide a more simplified explanation I would really appreciate it. I'm not that familiar with programming, so layman's terms are all I can manage! Thanks Simon On Sat, Apr 4, 2009 at 2:14 PM, IOhannes m zmoelnig zmoel...@iem.at wrote: Simon Ball wrote: Hi List hi. it seems like i received this email multiple times... However, there are few areas I am still confused about. First of all, I am unsure of how to extract muliple co-ordinates from [pix_multiblob]. I understand that the data from multiblob is collated within a matrix. I am able to see this in the pd window when I print. However, I am unsure how to use a matrix. Is there a certain object that I should be sending to from [pix_multiblob]? And in turn, how would I convert the matrix into xy co-ordinates. there is a separate library dedicated to the kind of matrices output by [pix_multiblob]; it's called iemmatrix. however, you should have an understanding of matrices in order to use it. matrices of this form are simple messages which you can treat like any other message. attached are two examples on how to extract the rows of a matrix (and pix_multiblob will give you one row per blob; so this is interesting data), one using iemmatrix ([pix_rows]) and one using zexy ([pix_rowz]). it is left as an exercise for the user to make a pd-vanilla implementation. just send the mtx-output of [pix_multiblob] to the object, and you will get nice lists for each blob, starting with the index of the blob (zero-based) and then comes the data. use [route] to filter the relevant blobs and [unpack] to access the data. In the archives I found a response to similar a question saying there was a gem example with matrix and multiblob, but I can not seem to find it. Any idea what and where this is? there's an abstraction called [pix_blobtracker] which uses [pix_multiblob] and matrix operations to track blobs. Hope thats not too many questions. And is it easier for the list if I divide questions up (for archive purposes perhaps)? personally i would prefer separate threads for separate questions for starters. it always ends in confusion, but we could try to delay this... gmsdr IOhannes #N canvas 0 0 552 353 10; #X obj 153 163 mtx; #X msg 153 143 col; #X obj 153 123 t b a b; #X obj 153 208 list prepend; #X obj 153 184 t a b; #X obj 196 185 i; #X obj 225 187 + 1; #X msg 214 165 0; #X obj 153 97 inlet; #X obj 153 236 outlet; #X text 72 48 output thw rows of a matrix \, prepended with a (zero-based) index; #X text 50 265 depends on [iemmatrix]; #X connect 0 0 4 0; #X connect 1 0 0 0; #X connect 2 0 1 0; #X connect 2 1 0 1; #X connect 2 2 7 0; #X connect 3 0 9 0; #X connect 4 0 3 0; #X connect 4 1 5 0; #X connect 5 0 6 0; #X connect 5 0 3 1; #X connect 6 0 5 1; #X connect 7 0 5 1; #X connect 8 0 2 0; #N canvas 166 277 450 419 10; #X msg 176 195 \$2; #X obj 184 249 repack; #X obj 144 221 list split 3; #X obj 184 321 list prepend; #X obj 144 170 t a a b; #X obj 184 274 t a b; #X obj 216 297 i; #X obj 246 298 + 1; #X msg 234 276 0; #X obj 144 145 inlet; #X obj 184 351 outlet; #X text 72 108 output thw rows of a matrix \, prepended with a (zero-based) index; #X text 50 375 depends on [zexy]; #X connect 0 0 1 1; #X connect 1 0 5 0; #X connect 2 1 1 0; #X connect 3 0 10 0; #X connect 4 0 2 0; #X connect 4 1 0 0; #X connect 4 2 8 0; #X connect 5 0 3 0; #X connect 5 1 6 0; #X connect 6 0 7 0; #X connect 6 0 3 1; #X connect 7 0 6 1; #X connect 8 0 6 1; #X connect 9 0 4 0; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Multiblob and Animations...
Hi List I've been working with pix_multiblob to affect layers in 3D. I'm managing to get an erratic signal from it, which from my point of view, represents great success! ; ) However, there are few areas I am still confused about. First of all, I am unsure of how to extract muliple co-ordinates from [pix_multiblob]. I understand that the data from multiblob is collated within a matrix. I am able to see this in the pd window when I print. However, I am unsure how to use a matrix. Is there a certain object that I should be sending to from [pix_multiblob]? And in turn, how would I convert the matrix into xy co-ordinates. In the archives I found a response to similar a question saying there was a gem example with matrix and multiblob, but I can not seem to find it. Any idea what and where this is? Also... I am trying to use the various xy co-ordinates to trigger animations. However, I am unsure of how to animate with Pd. I noticed that [splinepath] does something similar to what I am looking for. This seems to be based on array's. However, looking at the help data for array's has not made it any clearer. Is there a way of inputting a list of co-ordinates that act as a path for an image to follow? Hope thats not too many questions. And is it easier for the list if I divide questions up (for archive purposes perhaps)? Thanks in advance Simon ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Multiblob and Animations,,,
Hi List I've been working with pix_multiblob to affect layers in 3D. I'm managing to get an erratic signal from it, which from my point of view, represents great success! ; ) However, there are few areas I am still confused about. First of all, I am unsure of how to extract muliple co-ordinates from [pix_multiblob]. I understand that the data from multiblob is collated within a matrix. I am able to see this in the pd window when I print. However, I am unsure how to use a matrix. Is there a certain object that I should be sending to from [pix_multiblob]? And in turn, how would I convert the matrix into xy co-ordinates. In the archives I found a response to similar a question saying there was a gem example with matrix and multiblob, but I can not seem to find it... Also... I am trying to use the various xy co-ordinates to trigger animations. However, I am unsure of how to animate with Pd. I noticed that [splinepath] does something similar to what I am looking for. This seems to be based on array's. However, looking at the help data for array's has not made it any clearer. Is there a way of inputting a list of co-ordinates that act as a path for an image to follow? One last thing... How can I adjust transparency/opacity in PD, I can not find an object that does this. Hope thats not too many questions. And is it easier for the list if I divide questions up (for archive purposes perhaps)? Thanks in advance Simon ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Background Colour...
Hi there, simple question... How do I change the background colour of the window? I'm still learning, obviously. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Mouse Control...
Hi there I'm having trouble realising an idea. I've got the software running (mac book pro) and managed to play with some of the examples, however I am new to PD, so bare with me! I'm trying to generate a composition of images that float in 3D space. I want the images or layers to move and rotate towards areas of a screen where movement is detected. I don't need to track specific points of motion, simply to judge where movement is taking place. I think this will involve reading frames and analysing changes in pixels. Does that make sense? I plan to use a mini DV camera to run this, on a high contrast background, although I've seen a similar method of recording movement with a webcam and processing, which worked pretty well. ( http://vimeo.com/1948430?pg=embedsec= - tracks changes in pixels, although I'm not sure how). I assume that this will involve some sort of trigonometry to move images towards points where motion is detected, although I'm not sure how to apply this in PD. Also, how to I generate a floating effect, much like 'easing' does in animation software. And can this work with 3D, mapped images in PD? I hope thats clear, if a little broad, let me know you need any further info. Thanks in advance for any suggestions/solutions. Simon Simon Ball ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
