Keyframes and motion control

I would appreciate sources of information that would explain Motion Effect/Keyframes to a nonprofessional. I have read three books and can't get an understanding. For an example: If i change the motion controls position from 360 725 to 360 240, what am I doing? I would appreciate any help or reference material. Arnie

First, here is a TUTORIAL on basic Keyframing. It was written for an earlier version of Premiere, not Elements, but covers the basic theory.
Now, in your example, think of the Video Frame as a picture frame. It is fixed on the wall, and you have a picture inside of it, but can see nothing outside of that frame, only what is inside of it. What you are doing with Effect>Motion>Position is moving the picture behind that Frame. Same with Motion>Scale. Now, with keyframing, you can alter the position of your picture behind the frame over time.
Hope that this helps.
Hunt
PS - welcome to the forum.

Similar Messages

FCX & FCP: Keyframing and Motion Path

I need to find out if keyframing and motion paths are accomplished pretty much the same way in FCP as in Express. Someone is going to help me with keyframing and motion paths but works only with Final Cut Pro. Anyone know if that will be a problem?
Thanks.
Lee

Your FCP person should know how to do this in FCP.
I believe he does, and I think I can figure out that part of it (eventually) in FCX.
The "walking forward" means that, at the same time the image is scaling up, the right front lower corner of the image moves forward, then the left front lower corner moves forward, etc giving the appearance of the image "walking." I don't know if that makes any sense. What's more, I don't even know if it is possible in FCX.
It was suggested I start the image as a square or rectangle and change it into a trapezoid giving the illusion of its "moving." While I understood it as a theory when explained, actually doing it in FCX is another story.
Lee

Problem with data acquisition and motion control

I have PCI-6024E and PCI-7342 cards on a single PC. Servo motion control works fine when it goes alone or is accompanied by one point data acquisition in a while loop, but when I start data acquisition with specified sample rate, the motor moves with breaks.
Does anybody know what is the problem? Is it possible to fix it?

How are you performing your motion? Is it a position move or a velocity move? How are your triggering the data acquisition? Using breakpoints on the 7342? If so, are you using single breakpoints or modulo? How are you configuring the data acquisition rate? Are you triggering just the start to the acquisition and the unsing the daq scan clock or are you using the motion controller to send the scan clock itself?

Homing switch causing motion control problems

I am controlling a dome for a telescope. I have a home position switch and motion control using one of NI's motion controllers. Everything works fine except for one bug. The dome just goes around and around. I can run a Home type reference search and it works fine. But if I command a position that runs through the home switch zone the dome stops moving. If I hit the command a second time it runs right to the correct position.
So why does the home switch stop the motion if I am not doing a reference search. Should I be using some other form of referencing?
Thanks,
Dave
David A. Taylor

Do you have the home switch also configured as a limit switch?
What motion hardware are you using. In addition to home limits, the ni cards often have a + limit and - limit and also a software limit, these can be configured via the api or in max.
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA

PCI6602 for motion control?

Hi, I am wondering if it is possible to use the pulse generation of the
PCI6602 to control a stepper motor
driver, the problem is that I need aceleration and deceleration in the
pulse train.
I'm using the PCI6602 for event counting (~ MHz), and I need to
synchronize the data acquisition to the stepper motor pulses at a rate
of ~10 KHz. It would be nice to use a single card for both acquisition
and motion control.
thanx,
Stefano

Stefano,
Yes, you could use the PCI-6602 to control a stepper motor. This will require two counters per stepper axis to control the step/dir or CW/CCW lines, or one counter per axis if you only want to move in one direction. You would need to programmatically ramp up the pulse rate to control acceleration. However, since updating the output pulse train frequency is software timed, acceleration may not be very smooth and you risk losing step. Also, you would need to manually handle any pull in moves.
While you could achieve reasonable stepper control with the counter board with some trial and error, the PCI-7334 would probably be a better solution. This controller easily handles acceleration and deceleration and allows you to route the encoder signals over the
RTSI bus to control the data acquisition process.
Regards,
Brent Runnels
Applications Engineer
National Instruments

Motion control yoga 2 11

Somebody knows if the Yoga2 11 has voice control and motion control?

SOLVED
This is a Windows 8.1 issue for many different brands. After two days of searching this worked for me. Yoga 2 11. Joined the forum to offer this.
From a Tom'sHardware thread
Found the solution here, reprinted and slightly edited for convenience:
1. To manually re-enable two finger tap, hit windows key + r, enter "regedit" then hit enter, and on the left pane browse to the following location:
HKEY_CURRENT_USER\Software\Synaptics\SynTP\TouchPadPS2 AND (see ALSO below)
2. In the right pane double click on 2FingerTapAction and change the value to a "2" for right click, or a "4" for middle click (I use 2). Also double click on 2FingerTapPluginID and clear any value it may have.
3. Next in the right pane, find the MultiFingerTapFlags key and change it from a 2 to a 3
4. As a bonus, if you want to enable three finger tap for middle click, double click on 3FingerTapAction and change the value to a "4", also clear any value for 3FingerTapPluginID and set 3FingerTapPluginActionID to "0".
ASLO:
I have a Lenovo U510 and also had to do the changes in
"HKEY_CURRENT_USER\Software\Synaptics\SynTP\TouchPadPS2"
AND
"HKEY_CURRENT_USER\Software\Synaptics\SynTP\TouchPadSMB2c"
At last I´ve my missing two-finger-tap

Photos in Timeline and Ken Burns Effect (Motion Control)

I'd like to check my processes for setting photos with the Ken Burns Effect. I've used Tom's Motion Control example to set Ken Burns Effect on two or more photos that are next to each other in the timeline. I have found that if the photos are approximately the same pixel size that it works well. When they are significantly different I still see the second pic holding still for a few frames and then the movement.
So, I'm interested in other experiences. Did you also find that the relative size of the photos makes a difference? And, when you have photos that are significantly diff in size, what process do you use to bring them closer together?
Thanks,
dave

Hi David,
I think the problem you are having is similar to one that I was encountering while finishing a project a few weeks ago. I also was using photos of differing sizes, but the issue with the late start on the "Ken Burns Effect" on the second photo wasn't related to the differing photo sizes, but to the transition I used between the images.
I found that when I applied Motion to a photo using keyframes, the motion looked fine on both images until I applied a cross dissolve in between images. I realized that the cross dissolve is looking for frames before the motion keyframe to blend with the previous photo. Since the frames before the keyframe are "generated" (I'm not sure if that's the correct word) from the first frame of the still (which has no motion) it generates 15 frames (for a 1 second cross dissolve) that are not moving. That makes it appear like it's stuck and then starts moving when the playhead hits the motion keyframe.
My solution was to move the still photo clips (one at a time) up one video track, extend both ends 15 frames and set the motion keyframe at the "new" beginning of the clip and the "new" end and do my motion based on that new clip length. I then brought in both ends back to their original positions and dropped the clip back into its original spot and then applied the cross dissolve. Now the cross dissolve would have 15 frames with motion to work with for blending the two pictures.
It was incredibly tedious, but I had to do it because the images made up a large part of the video project I was working on. If anyone can suggest a better way of doing it, I would greatly appreciate it.
Despite the time involved, I was really happy with the final results.
I hope that helps.
I don't log in here very often, so if you have any questions, feel free to email me at cgonzalezat*sfchronicle*dotcom
Good luck.

Copy and paste keyframes in motion tab

Is there a way to copy and paste a keyframe in motion or filters tab?

This video was helpful to me
http://provideocoalition.com/index.php/smartin/video/reapplyingkeyframes_inmotion/

Simple straight line motion control with brushless motor and encoder/microswitch

I want to go build a motion control system/program using labview. I have a brushless motor and a controller and a National instrument DAC (NI USB-6009). This is how my system looks like: receive an input signal 4-20mA, this should be converted to 0-5V for the controller for speed, controller should move motor till it hits micro switch. The micro switch/encoder should generate a signal (5V) back to shut the controller. I want to record the position of the motor in labview. How do I do this? How do I set the system up? Thank you in advance

Controller from anaheimautomation: MDC151-050301
Motor:BLWSG234D-36V-4000-R3
Controller and motor go together.
The input signal for the system will be 4-20mA. Using this signal I will correlate it to a specific voltage which will drive the speed of the motor. This will displace the lead screw linearly. I will have a microswitch that will be triggered by screw and will relay a signal to shut the motor. I want find a way to record the position of the shaft/leadscrew at that specific point. I want to identify a home position, halfway position and full length travel position. I will use 3 swiches or 1 switch in three positions to identify all these points.
My end result should be whwn I turn on the system or start the program It should detect whether it is at the home position, if not travel to home then respond accordigly given an input signal(4-20mA).
How will I program such on labview...finding all the right icons to record the data is such a mess for me since i'm a beginner.
Thanks

Motion control: PXI 7350 controller and UMI 7774 to interface with third-party driver UDK5114NW2

Dear community,
This is about Motion control in Labview: I try to control a step motor by using a PXI 7350 controller and UMI 7774 to interface with third-party driver UDK5114NW2. The problem is 5 Disable LEDS on UMI 7774 board always lit even when I check "enable" on "Motion I/O setting" in configuration of PXI 7350 motion controller. Furthermore, when I start to control step motor, it is not working and I found disable LED on UMI board still lit. I don't know how to solve this problem. Can someone help me to figure out? Thank you in advance!
Hau Nguyen.

Dear Community,
I said wrong, 4 disable LEDS on UMI 7774 Board instead of 5 as my previous post. Why nobody help me to solve this problem. I can not turn off disable LEDs on UMI 7774 Board so I can not start the strp motor. Please help me!
Hau Nguyen.

Is it possible to condition a load cell signal with a 1520 SCXI and then use it as the primary analog feedback for a 735X motion control board?

My system
PXI 1052 chassis
PXI 8196 RT controller
Flexmotion 7356 motion controller
Flexmotion 7354 motion controller
6259 M series DAQ
1520 SCXI
1520 SCXI
1314 SCXI frount mounting terminal block
DSM strain gage load cells
Exlar SR Brushless PM motors
Kollmorgen servo star CD series 5 drives
My objective:
I want to measure the force on the load cells with the 1520 SCXI (i.e. excite the load cell then amplify and condition its output) then I want to use this analog (force) signal as the primary feedback for my motion control system (7356 and 7354 motion controller connected to my drives and motors).
The problem:
The motion controller boards (7356 and 7354) can be configured for force feedback control via analog feedback from a load cell. However the boards implicitly expect the load cell signal to be amplified and conditioned with and external signal conditioner rather then using an NI SCXI module. Currently I’m am reading the SCXI signals via the 6259 M seriers DAQ and consequentially have no way to route the signal into the 735X boards for force feedback control. I can use softmotion to control the motors but then I loose the fast PID update rates possible with the 735X boards.
The question:
Is it possible to condition a load cell signal with a 1520 SCXI and then use it as the primary analog feedback for a 735X motion control board?
Thanks
Patrick Aubin
Ph.D Candidate
University of Washington &
VA MedicalCenter of Excellence for
Limb Loss Prevention and Prosthetic Engineering

Hi GG,
Thank you for your feedback.
>create your own external circuitry to amplify the signal.>
True a few op-amps could amplify and filter the signal externally but the performance of such an amateur built system will never match the accuracy and functionality of the 1520 SCXI. That’s why we spent the $2500 for the professional version.
>One thing that you could do is to use a UMI with your motion controller and then wire your signal from your SCXI to the UMI.>
As I understand it the UMI is basically a break out connectivity interface for third party drives. After conditioning and amplifying the analog force signal with the SCXI module the analog signal isn’t available to wire into a UMI. To my knowledge the conditioned signal of the SCXI resides only in the PXI backplane (i.e. there is no physical access to the conditioned analog signal). Can you explain how the UMI could be help here.
Again thanks for your input GG.
Patrick

Motion control and feedback is inverted

I have an application where the motion control and feedback is opposite of what should be commanded. I am using LabVIEW 8.2, a PCI-7344 motion card, Pacific Scientific PC833 drive & a servo motor w/resolver. The PC833 is emulating encoder feedback to the motion card. I've tried swapping control/feedback signals and the system becomes unstable. Is there any settings in max/LabVIEW to inverse the control/feedback, or are there any suggestions on what to change in the wiring to get the system to operate properly?

I am going to assume that you mean that when you command a positive move, the motor goes negative, and runs away quickly. Different drives handle changing direction differently, but to get basic control, just switch one pair of the feedback signals going to the controller. Swap A+ and A- or B+ and B-.

Motion, Animation, Keyframes and a Video Clip.

Hello out there!
I'm putting together a music video for my students to promote a choir club at a school. In doing so, I would like part of the video to scroll from left to right.
To give you a visual, I'm trying to produce this effect: https://www.youtube.com/watch?v=CXit8kxCCTg
I know it has everything to do with keyframes and knowing how to use them, but I'm having difficulty trying to figure out the coordinates of the anchor points, and where they have to be, and when. It's really a math and logic issue...
I have already exported an entire video and have created a new project where the entire video is in one clip. (Does this make sense?)
Any help on this issue would be super appreciated.

Thanks a lot! It works!!

Motion: controlling start/stop of animated still?

Very simple move on a still. I want to start on closeup, move out, pause at one point mid-frame, then move out further to full frame.
I'm just using keyframes. I get my start very smooth (bezier) out to my 'pause' ... both the start and the stop at the pause are very smooth. Then I move out of the pause and out to full frame. If I'm using the bezier curve it seems I can get a real nice start up out of the pause - but when I arrive wide at the full frame it is a mildly jerky stop. I have added an extra keyframe after the final keyframe. If I highlight all the final 'stop' keyframes and 'extrapolate' to an 'ease-in' I get a very smooth seamless decelleration and stop - but!: the start-up out of the pause is now jerky.
Is there any way I can have both a smooth slowly accelerating move out of the pause AND get a slow decelleration when I arrive at the full wide end position?
I've done this dozens of times before - numerous pauses and moves on a single still, but about a year or so ago, and can't remember for the life of me how I did it.
I don't think I was using the camera, OR the 3D.
Any help would be enormously appreciated...
Ben

fcp just doesn't do a great job with this sort of thing. Roughing out the move in fcp and then sending the clip to motion and adjusting the keyframe interpolation may give you better control.

Still photo scaling and motion

I'm editing a series of still photos and can't figure out how to properly scale the photos and add zooms and other motions. Any advice??

To do this in FCP, place the images in the order you want on the Timeline. Double-click one to load it into the Viewer window. Click on the Motion tab, then use the SCALE and CENTER controls to set the animation you want.
Once you set the initial keyframe for an image, FCP will automatically add new keyframes for each change over the duration of the image. Setting the Canvas window to Image+Wireframe mode will allow you to scale and drag the image with the mouse.
This book may help: http://tinyurl.com/5csyaw
-DH

Keyframes and motion control

Similar Messages

Maybe you are looking for