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How to handle track of multiple objects at the same time
This is a discussion on How to handle track of multiple objects at the same time within the MapPoint 2006/2009 Discussion forums, part of the Map Forums category; Language: VC++ Using: Mappoint API embedded in my own app. Hi best programmers, I would like to have some advise ...
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12-12-2006
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| How to handle track of multiple objects at the same time Using: Mappoint API embedded in my own app. Hi best programmers, I would like to have some advise of you. On the map I want to be able to follow several obejcts (in the form of cars or persons) at the same time with their passed points. For example I have object A and object B, I can see both A and B simultaneously where they go. I get the positions via a network. I can also click on a previous point to see at wich time they where on that place. Now suppose I have let's say about six of those objects, than what is the best way to program it? Should I use threads or is there a way to put all the pushpins of a certain object in some kind of a collection....? Does somebody have a suggestion, it's just to get an idea of wich direction I have to think. Thank you very much.         |
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12-12-2006
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| Re: How to handle track of multiple objects at the same time
Hi, In C# you have 'user data objects', in Delphi and CBuilder a 'TList', C++ probably will have something similar ?
__________________ rgds, Wilfried Mestdagh www.mestdagh.biz MapPoint coding demo Order MapPoint 2009 with Routing and User Tools Spreadsheet |
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12-13-2006
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| Re: How to handle track of multiple objects at the same time
Hi Wilfried, Thank you for your reply, in MFC (wich I use) there is something like CList. I think that is what you mean. Should that be usefull to handle and proces multiple targets at the same time on the map? Can you give me a simple example? By the way, I really appreciate your help on this forum. Not everybody makes some precious time free to help others. So thank you Wilfried. |
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12-13-2006
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| Re: How to handle track of multiple objects at the same time
Hi all, I want to solve this problem on the following way. For each target or object I want to follow, I'll create a pushpin set (from data set). So all the pushpins that belongs to a certain target/object are saved in its pushpin set. So when I select an old pushpin of a certain target/object, I'll get the information in the balloonfield to which target/object it belongs. Also can I draw the route based on all pushpins in the certain dataset of the target, right?? Now another problem rises up, how can I during runtime create......... Hmmm wait a minute, now I've to make an array which can find the right target/object-name and there you can find the reference of the created pushipin set. Where you can get, for example, all the pushpin info's. Is that an idea? If somebody has a better suggestion, than I'm open for it  |
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12-14-2006
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| Re: How to handle track of multiple objects at the same time
Hi, Yep you are on the right track  I did a quick look into the CList, and yes that's what I meanth. You mention to use several dataset, yes also good solution, and then use array (or a CList) to hold the refernces. I see there is an CArray class also. As far as I can see it is more comparable with the TList I mentioned in Delphi and CBuilder. Thank you for the compliment. I try to look at the forum at least once a day, but I have too mutch work, so sometime there is no time left  Sometime I have to eat and sleep above my keyboard (not so good) ...
__________________ rgds, Wilfried Mestdagh www.mestdagh.biz MapPoint coding demo Order MapPoint 2009 with Routing and User Tools Spreadsheet |
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12-15-2006
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 Re: How to handle track of multiple objects at the same time
Thank you too Wilfried, I used a gps-navigator combined with Mappoint 2006 to get on the right track  I think now I know how to solve this problem. Take a good rest my friend, programming is not all that. So when you rest all out, you can crunch the bits and the bytes in your software . |
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| Tags |
| handle, multiple, objects, time, track |
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| MapPoint Articles - MP2K Magazine | This thread | Refback | 12-17-2006 09:27 PM | |
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