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I have a public __gc class named Zones. At program startup I want the program to read a data file, and dynamically invoke instances of Zones depending on how many are listed in the .dat file.
--Example of .dat file
[Zone1]
name=test1
loc=coords1
[Zone2]
name=test2
loc=coords2
[zone3]
name=test3
loc=coords3
I would like to create a filestream and streamreader, create an instance of the class Zones, input the first 4 lines of data (first and 4th are non-necessary), and then peek at the next line. If the peek != NULL, then loop back up to create a 2nd instance, etc etc etc until it gets to the end of the file which would be a blank line. Then I can perform calculations and find out which is the closest to me (according to my location coords from another class (public __gc class MyLoc)) and info like that.
James Meade
Tank
vENS vUSN
VAQ-140 Patriots
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Hello all,
I'm having a bizarre problem.
I created a setup for my program, using Installshield Express 5.
The program installs with no problems, and the required shortcuts are created.
Then, I make a QuickPatch for it, and install it. The QuickPatch replaces a single file - and works with no error - but it ruins the shortcuts!
More specifically, after I run it, the shortcuts point to "nothing" (an empty field), and fail to run (Windows displays an "Invalid parameter" error message box.
Any ideas??
Thanks in advance!
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Hi,All
I am in this stiuation. I have a header file(foo.h) that is in a different directory. For instance, my project is under c:\test\, and foo.h is under c:\confuse\foo.h. I am trying to include foo.h into my project. And the way i do is as following:
#include "..\confuse\foo.h". The error message is
fatal error C1083: Cannot open include file: '..\confuse\foo.h': No such file or directory.
Could somebody tell me what can i do?
Thanks in advance.
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try / instead of \
otherwise...make sure your files are in those actual directories and everything should work 
If not i'm as confused as you are 
Cheers
The word of the day is legs, let's go back to my house and spread the word 
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Take the Visual Studio path setting by
Tools menu > Option > Directory tab >
Then add the directory to the Include path list. Here in ur case "c:\confuse".
Then just use
#include "foo.h"
Regards,
Jijo. 
________________________________
Yesterday is history,
Tomorrow is a mystery,
But today is a present.
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Tools > Options > Directory is a user setting. Only use this for system includes such as the Platform SDK. These settings are not carried along with the project, so anyone else working with the project will have to configure their IDE appropriately.
For projects, you should go to Project > Settings > C/C++ tab > Preprocessor category and add the directory to the Additional Directories setting. You'll need to do this for all configurations.
The Additional Directories setting is a comma-separated list of directories. You should specify the directory relative to the location of the project's .dsp file.
A layout I often use is
proj
+-inc
+-src
+-lib
+-bin
+-obj In this case, I put common include files in inc, my project files live in the root proj directory, so the Additional Directories field simply has inc in it.
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Thanks, guys.
Mike, i am following your suggestion. Preprocesor category you metioned is C/C++ tab > Preprocessor definition? In the Preprocessor definition box, i have "WIN32,_DEBUG,_WINDOWS,_AFXDLL,_MBCS", how can i specify the directory relative to the location of the project's .dsp file?
Thank you very much.
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You're looking at the wrong control.
The top control in the box is the Category drop-down, which currently reads General. You need to change that to Preprocessor.
You should then see a layout something like:
Category: [Preprocessor ][v] [Reset]
Preprocessor definitions:
[_DEBUG,WIN32,_CONSOLE,_MBCS ]
Undefined symbols: [ ] Undefine all symbols
[ ]
Additional include directories:
[ <edit this field> ] [ ] Ignore standard include paths
Project Options:
[ ] [ ] You should add the directory in the Additional include directories field - in your case, probably ..\confuse.
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Thank you very much, Mike.
I just tried the way you showed me. However, i still get the same error.
After i added the directory and compiling it, there is a pop up dialog
"The project setting have changed since the last build. Would you like to rebuild the affected files?" I clicked YES.
In addition, in the file i need to include foo.h, i did both tries:
#include "..\confuse\foo.h"
or
#include "foo.h"
What do you think?
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I agree with you mike.
Regards,
Jijo.
________________________________
Yesterday is history,
Tomorrow is a mystery,
But today is a present.
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hy, i have a sample program, in which i can grab bitmaps or avis from any webcam. now, what im trying to do is to measure the velocity of movements, like lets say the movement of a hand. so when you shake your hand in front of the webcam, the program should put out a factor between 1-4 1 for slow and 4 for fast. i tryed several things, like comparing 2 bitmaps every 200ms, etc. but it all didnt worked . and also performance is a big issue.
i compare the bitmap with bmpPicture.GetPixel(nW,nH) etc. so i need to compare every pixel. does anybody has an idea of how i can solve this problem? maby there is some code out there i can use, or a simpler approach?
thanx a lot!
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I don't have code, but why don't you sample bands instead of the entire image? For example, if you had a 10 x 10 pixel image (using 10 here just to illustrate...) you could sample every 2 pixels and reduce by a factor of 2. (ie: 5 bands) Or, you could even sample every 5 bands and reduce by a factor of 5 (ie, you would have 2 samples - 10 /5 = 2...)
Was that clear??
You could even be really elegant and sample as per a comb filter at the Nyquist frequency!
John Theal
Physicist at Large
Got CAD?
http://www.presenter3d.com[^]
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hy,so you mean i should basically reduce the imagesize of the images i compare? but in the end i must compare pixels etc? i think youre right,
maby even black/white pictures will do the job. what do you mean with
"You could even be really elegant and sample as per a comb filter at the Nyquist frequency!"
?
thanx, greez
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hmm you probably need to standardise the distance so you know that the hand is always i metre away from the camera say.
Then you probably could figure out the "width" and "height" of the view from 1 metre.
and then you can tell that 1 pixel at NxM res' corresponds to a set area.
then it comes down to figuring out when and where the motion started and when and where it finishes.
Sounds like a 3 year computer science project to me
Bryce
---
Publitor, making Pubmed easy.
http://www.sohocode.com/publitor
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3 years,oh my gosh!? i thought i could do this in an afternoon
but im convinced there is an easy approach! and remember, all i want is
relative velocity, not abolute. i just want to know if the hand moves slow or fast. so i was thinking about making every x ms a bitmap, and then compare them. lets say i wear a white t-shirt, and my hand is black. so when
i move the hand up and down i could detect, how many light or dark pixels are in lets say 4 zones of the bitmap. so i could detect the position of the hand, and with that also the velocity. i think i could do this in 2 days, what do you think??
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Comparing two bitmaps (or anything) is simple; just compute a CRC over both and you will know whether anything has changed or not.
However, this is not the solution to your problem. You'd need to detect characteristic patterns (at least in case two subsequent images that are in fact different) in the first, try to locate the similar pattern in the second, measure the distance along X and Y axis, employ a second camera at a slightly different angle so that you can establish the distance along Z, know the time between the two pictures, and you're done.
Oh, you will also have to recognize similar but distinct patterns: the hand might turn a little when being moved, the ball might rotate, the cloud changes shape.
Not sure about the 3 years, but 1+: definitively.
Enjoy!
Bernd
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maby youre right! nevertheless ill try to do it in 3 days
could you maby explain me shortly what means to compute a CRC over both images?
thanx
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Oh - it means to compute a checksum over the images. This will be quicker than pixel-by-pixel comparison. It might even be faster (depending on your CPU power and bitmap size) to compress these images, and then to compute the checksum over the compressed data.
CRC is the name for a family of standard checksum algorithms. Simply adding all bytes will not be good enough, you'd need something that produces a different signature (aka checksum) for different data. A simple addition won't do.
Bernd
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ah, ok, but i think that would be difficult, because every frame you capture
is basically different, even if nothing moves, because of the signal/noise ratio..ok, thanx for your help!
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Andreas,
You might want to read this - technologies like the Lempel Ziv Welch compression algorithm are designed to detect similarieties and reoccurring patterns.
For example, you might have two subsequent shots A and B(bitmaps). You could reduce their complexity by reducing the color resolution to B/W, or 4 grayscales maybe.
Then you could create bitmap C = A + B by simply appending the two, run it through LZW and see where signifficant reoccurring patters are.
Next, you could rotate B by 90 degrees clockwise to B', create C' = A + B', and run this through LZW.
This could give you a start, at least for verical and horicontal movement. Not sure. This is just brainstorming.
Good luck,
Bernd
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You should check out OpenCv, which is an open source image processing library which has a whole branch associated with calculation of optical flow (it also has a built in feature tracker). The sample apps which come with it are helpful, and there is a yahoogroup if you get stuck.
If performance is a big issue, you're probably going to need to use directshow to capture the images from the webcam. Check out the playcap sample in the DirectX SDK.
If you can keep you head when all about you
Are losing theirs and blaming it on you;
If you can dream - and not make dreams your master;
If you can think - and not make thoughts you aim;
Yours is the Earth and everything that's in it.
Rudyard Kipling
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ok, thanx for the tip! what do you think about Vision SDK from MS?
i tried several times to run any sample porgram, but i never could compile it, i always had errors!!!!
greets
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If it's the SDK I'm thinking of (and from a very quick look at the Microsoft website, it is) it stinks.
We had heaps of problems with it when we did a little work, and found that OpenCV with pure directshow was a much better solution. Even still it took a long time to get everything up and running properly, and we were learning it from scratch.
If you can keep you head when all about you
Are losing theirs and blaming it on you;
If you can dream - and not make dreams your master;
If you can think - and not make thoughts you aim;
Yours is the Earth and everything that's in it.
Rudyard Kipling
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Hi,
does anyone know how to access the format intfoamtion of an MS word/Excel session. For the Fonts available and other options.
Any reply appreciated
Stephen
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Any advice about the following would very much appreciated.
Is it possible to create an event that can be waited on in any thread, not just an owning thread or a child thread.
Is this possible ?.
Thanks.
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