1,471 Reply by joan

(19 replies, posted in General)

Yes, it will only consider files with the .svg extension for inclusion in the menu.
I see there is a check box in Inkscape's save dialog to "automatically add file extension", do you have it checked?

The menu will update in real time in the next version, by listening to changes in the "guides" folder.
(Also, semi-hidden feature discussed in page 1 of this thread, you can create subdirectories to group the files to your liking.)

What would be really awesome is if there was a central place where users could publish and share these files, and improve them by collaboration. And, it would facilitate diagnostic for issues related to them too.

I find the manipulation of the objects sub optimal though. (handles in corners often get out of the picture, dragging work only if exactly on part of the object, etc.)
If any one has ideas to improve the manipulation, don't hesitate !

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1,472 Reply by joan

(2 replies, posted in Ideas and feature requests)

Ah yes, nice idea. Thanks for the suggestion.

I'm thinking maybe the Shift key modifier ? (I think it's like that in Photoshop and maybe other programs, additionally, Shift + free hand pencil will draw straight lines, it could be intersting too.).

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1,473 Reply by joan

(19 replies, posted in General)

Thanks!
I'm having the same behavior.

When saving from Inkscape, everything looks fine, no error message, but then, when going to the actual location in Programs files through Windows Explorer, the file is not there.
(Although if reopening Inkscape save dialog, the file is visible!)

I think this is folder virtualization feature in the works as I suspected above. In Vista and 7, programs runs with normal user privileges (even on an administrator account) so when Inkscape tries to writes to Program files directory, it is transparently redirected to another, safe location.

The files are virtualized into %localappdata%/VirtualStore

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1,474 Reply by joan

(6 replies, posted in General)

Using your single-frame-trajectory trick, you could define a "label" to identify them. (right click the track > configuration > label).

Displaying coordinates on single cross markers will definitely be in the next version. Thanks for the suggestion smile
(Added to the spreadsheet exporters too)

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1,475 Reply by joan

(19 replies, posted in General)

Alexander, (or any one that had this issue)

Do you still reproduce this defect?
The program has to be restarted after the new file is added in the "guides" folder.
What about files added in sub directories?

ref: bug219.

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1,476 Reply by joan

(1 replies, posted in General)

From your description, you have 2 videos of the same event, but they don't last the same duration. Is that right?
If so, it would seem Kinovea cannot parse the framerate of one of the video correctly.

When playing 2 videos, the program will use the framerate of each video independently and you shouldn't have to worry about it. (a 10-second scene will last 10 seconds whatever the framerate of each video).

In any event, I don't think you would be able to adjust the framerate mismatch by tweaking the slowmotion value (it will probably not be an whole number).
You can adjust the slow motion by 1% increments with the UP/DOWN arrow keys, but as you noticed, this change will impact both videos (it is a recent change, but it makes sense, the framerate should be irrelevant with regards to slowmotion, and we couldn't find real life scenario where one would need to compare a slowed down video with a real time one.)

Could you identify the one video that is not playing for the right duration? (It should behave like this even when played alone in single screen view).
With informations on format, etc. we can try to see where the problem is.

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1,477 Reply by joan

(6 replies, posted in Bug reports)

etexfisherman48 wrote:

I am trying to track the bat path of a baseball swing, but I am not having any luck??? Is this possible to do?

I think you'll have to resort to manual tracking for this. The bat motion is super fast, and it is a rotation. It makes it very hard for the program to match the pattern from one frame to another.
You may have more luck by using stickers on the bat if it's at all possible. Not sure it will work due to the bat rotating on its own axis though. Manual tracking will probably do a better job anyway.

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1,478 Reply by joan

(11 replies, posted in General)

The framerate switcher will be in the next version. Hopefully the release will be on february 1st, if I can squeeze a few more bugfixes in.

With the current version, it will always take the first configuration that the camera driver exposes.
About the delay jump to slow motion, are you referring to playback or recording ?

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1,479 Reply by joan

(11 replies, posted in General)

kinoveafan wrote:

Is it possible to build something like a trigger in kinovea? When I use the software my cameras are static so could it be possible to make something like:

if ( the golfball is gone)
     keep on capturing for one more second
      then playback the last 2 seconds
      and ask if the swing should be saved". ?

Well, I'm open to this sort of stuff but so far all the implementations I have seen of this were pretty confusing in my opinion (in term of user experience / user interface). I certainly wouldn't want the casual user to have to think about how much preroll he needs to account for or force him to think in terms of predefined recording scenario…

With image size of the like of 640×480, you should have a pretty large buffer. If you can slide the delay to 30 seconds or something, that should leave you time to do the swing, go back to the computer and start recording. (You record what is currently displayed on screen, not the live)

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1,480 Reply by joan

(2 replies, posted in General)

bowl1820 wrote:

I'm a new user and was wondering how the development of the motion tracking is progressing.

Hi,
The algorithm itself is more or less established (see similar snooker snapshot with version 0.8.6). There is still room for improvement, but it's considered of a lesser priority with regards to other areas. The next improvements regarding tracking will be the implementation of multi point tracking, to be able to track lines, angles, etc.

bowl1820 wrote:

I'm trying the motion tracking with tracking a bowling balls path down a lane. I've noticed some of things you mentioned above like the tracking slowly shifts away from the ball or the tracking jumping off the ball to a reflection on the lane etc. happening. (I make manual adjustments to the track when this happens).

The issue with slow drift from the target and problems highlighted in the original message should be fixed in recent versions. (Unless you are using version older than 0.8.7) so it may be something special (like attaching to a small spot on the ball).

Attaching to reflection instead of the real thing is really hard to prevent. Sometimes the reflection just look more similar to the previous image than the object itself. In any case, the automation of tracking is really meant to be an aid to manual tracking.

bowl1820 wrote:

I was wondering if it would be possible to have a circular bounding box (preferably a variable size one(handles could be added to the box so as not to interfere with the manual dragging of the box.)  that could be confined to the object being tracked) and/or maybe a way to highlight elements not to be tracked (like in part of photoshop they have a way to highlight areas to select and not select.)

The internal pattern window must be rectangular. I'm not familiar with this specific Photoshop function.

Hopefully, the ability to resize the search window should be enough to avoid these issues.

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1,481 Reply by joan

(6 replies, posted in General)

Hello,
Yes the ability to display the coordinates for a specifc cross marker would be nice. I'll add it to the suggestion list or maybe implement it if I can do so quickly.

Regarding export to spreadsheet, I'm not sure what would be the best way to display these data…

Currently we just group objects by type and list their various values over time. When there are several object of the same type on the same image, we can't differenciate them. (for Tracks and Stopwatches, there is a title to help, but for lines, angles and soon single points, there is nothing).
If you have many points on the same image, I don't know you will be able to set them appart for further calculations…

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1,482 Reply by joan

(4 replies, posted in Bug reports)

I think I have found the root cause, and apparently the bug has always been there, although it might have been hidden.

The underlying cause is a bit complex (see bug note), but it worked before because the default codepage on your machine contained the cyrillic characters, and apparently it doesn't anymore on your new system.

This means that non Unicode programs will have issues with these filenames (Which is the case of the low level decoding library when used with default options).

Here are some instructions to change the default codepage in Windows 7, this may help with the problem until a more general solution is implemented.


edit:
To confirm the workaround, I switched the settings for non-unicode programs to use the Russian codepage on my machine, and now I can open the files with cyrillic characters. (but files with roman special chars like éêà do not work anymore)

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1,483 Reply by joan

(4 replies, posted in Bug reports)

Yes, you're right. I reproduce this right away with cyrillic characters in the filename.
I added bug231, I'll try to look at this as soon as possible, fairly critical.

I'll try with older versions to see when this started to fail and what may have changed…

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1,484 Reply by joan

(4 replies, posted in Bug reports)

Hmm… Maybe you were previously using one of the experimental version?
They have a more recent version of the file decoding library, so if it's an option, you may want to try that anyway.

The error is strange though. It's not saying it cannot decode the file (there is another error for that), it's saying it can't find it in the first place…

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1,485 Reply by joan

(11 replies, posted in General)

kinoveafan wrote:

The camera is really great (320*240 @125fps / 640*480 @75fps) and cheap ( 20€).

Nice specs for 20€ smile
Settings change should be in the next experimental version. We'll see if it works...

About the camera, what about depth of field? Is the image quality decent when the subject is at a distance of more than a few feets? Also, does it work well outdoors? (Sometimes the cheap captors are tailored for indoor / close range video since the main application is video chat.)

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