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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees - #1

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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?

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I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!

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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!

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Thanks, I'll look it through when i have some free time.

Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...

Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...

For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.

@ghost

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For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)

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OK, i see.
Any plans to implement updateNode or deleteNode methods?

@ghost

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I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!

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why missing? you may use http://visionmedia.github.com/mocha/ for example...

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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees · Pull Request #1 · jsmarkus/ExamplesByMesh · GitHub
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees - #1
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?
@ghost
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I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!
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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!
@jsmarkus
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Thanks, I'll look it through when i have some free time.
Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...
Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...
For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.
@ghost
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For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)
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OK, i see.

Any plans to implement updateNode or deleteNode methods?
@ghost
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I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!
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why missing? you may use http://visionmedia.github.com/mocha/ for example...
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees · Pull Request #1 · jsmarkus/ExamplesByMesh · GitHub
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees - #1
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees#1
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Merge pull request#1from Jagged/master
1b42ccd
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
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merged commit 1b42ccd
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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?
@ghost
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I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!
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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!
@jsmarkus
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Thanks, I'll look it through when i have some free time.
Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...
Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...
For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.
@ghost
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For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)
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OK, i see.

Any plans to implement updateNode or deleteNode methods?
@ghost
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I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!
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why missing? you may use http://visionmedia.github.com/mocha/ for example...
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees · Pull Request #1 · jsmarkus/ExamplesByMesh · GitHub
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees - #1
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Merged
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees#1
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Merge pull request#1from Jagged/master
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
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merged commit 1b42ccd
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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?
@ghost
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I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!
@ghost
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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!
@jsmarkus
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Thanks, I'll look it through when i have some free time.
Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...
Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...
For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.
@ghost
ghost
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Mar 12, 2012

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Author
For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)
@jsmarkus
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OK, i see.

Any plans to implement updateNode or deleteNode methods?
@ghost
ghost
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Author
I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!
@jsmarkus
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why missing? you may use http://visionmedia.github.com/mocha/ for example...
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees · Pull Request #1 · jsmarkus/ExamplesByMesh · GitHub
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees - #1
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Mar 9, 2012
Merged
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees#1
jsmarkus merged 1 commit into
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Mark
Merge pull request#1from Jagged/master
1b42ccd
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
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merged commit 1b42ccd
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jsmarkus:masterMar 9, 2012
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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?
@ghost
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Author
I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!
@ghost
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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!
@jsmarkus
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Thanks, I'll look it through when i have some free time.
Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...
Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...
For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.
@ghost
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For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)
@jsmarkus
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OK, i see.

Any plans to implement updateNode or deleteNode methods?
@ghost
ghost
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I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!
@jsmarkus
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why missing? you may use http://visionmedia.github.com/mocha/ for example...
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees · Pull Request #1 · jsmarkus/ExamplesByMesh · GitHub
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Merge pull request#1from Jagged/master
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?
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I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!
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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!
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Thanks, I'll look it through when i have some free time.
Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...
Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...
For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.
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For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)
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OK, i see.

Any plans to implement updateNode or deleteNode methods?
@ghost
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I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!
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why missing? you may use http://visionmedia.github.com/mocha/ for example...
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees · Pull Request #1 · jsmarkus/ExamplesByMesh · GitHub
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees - #1
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jsmarkus merged 1 commit into
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Mar 9, 2012
Merged
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees#1
jsmarkus merged 1 commit into
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@ghost
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jsmarkus pushed a commit
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Mar 9, 2012
Mark
Merge pull request#1from Jagged/master
1b42ccd
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
@jsmarkus
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merged commit 1b42ccd
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jsmarkus:masterMar 9, 2012
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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?
@ghost
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I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!
@ghost
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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!
@jsmarkus
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Thanks, I'll look it through when i have some free time.
Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...
Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...
For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.
@ghost
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Mar 12, 2012

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For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)
@jsmarkus
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OK, i see.

Any plans to implement updateNode or deleteNode methods?
@ghost
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I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!
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why missing? you may use http://visionmedia.github.com/mocha/ for example...
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees · Pull Request #1 · jsmarkus/ExamplesByMesh · GitHub
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CHG: retrieveInBounds now supports non-point (bounds) QuadTrees - #1
Merged
jsmarkus merged 1 commit into
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Mar 9, 2012
Merged
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees#1
jsmarkus merged 1 commit into
masterfrom 
unknown repository
Conversation
@ghost
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Mar 9, 2012

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 No description provided. 
jsmarkus pushed a commit
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Mar 9, 2012
Mark
Merge pull request#1from Jagged/master
1b42ccd
CHG: retrieveInBounds now supports non-point (bounds) QuadTrees
@jsmarkus
jsmarkus
merged commit 1b42ccd
into
jsmarkus:masterMar 9, 2012
@jsmarkus
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Mar 9, 2012

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I have merged, but i have no time now to test. Did you make any tests or demos on your version of retrieveInBounds() method?
@ghost
ghost
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Mar 9, 2012

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Author
I crudely tested by switching out line 100 of retrieve_bounds.js with a call to retrieveInBounds, however without a visual clue of the bounds being tested for on click, it wasn't the nicest demo. I'll have a look at how I might demo your method with my additions, assuming you don't beat me to it in the next day or two!
@ghost
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Mar 10, 2012

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I've written a demo page which shows both points and bounds working with retrieveInBounds. Thanks for replying so quick!
@jsmarkus
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Mar 11, 2012

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Thanks, I'll look it through when i have some free time.
Depending on how you are going to use this quad-tree index, i have to warn you about some problems. First - if you are going to index small clusters of objects on a huge surface (e.g. GPS-coordinates of objects in a single town against entire Earth) get ready to the fact that the tree will significantly grow in depth. It makes queries almost as expensive as direct scan...
Second - this index has no method to be correctly updated, i.e. you cannot rebuild it when one object's coordinates are changed. It makes it unuseful in realtime collision-detection. In collisions demo the tree was updated by clearing it all and adding all the objects. It is not acceptable in real-life game development...
For fast GPS clustering (in my company's project) i have made another index - "zone tree", but i am not sure that i can release it open-source. If you are interested i can tell you an idea how it should work.
@ghost
ghost
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Mar 12, 2012

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Author
For my purposes (a platform game), it's perfect for what I'm planning to do. It's definitely far faster than linear searches. I can only imagine the challenges you've had to face, but until I design a game that big (!!), I think I'm good with QuadTree for now. =)
@jsmarkus
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Mar 12, 2012

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Owner
OK, i see.

Any plans to implement updateNode or deleteNode methods?
@ghost
ghost
commented
Mar 14, 2012

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Author
I'm toying with the delete presently, but without QuadTree remembering the node an item was added to, nor the parent for a node, it would be slow. These issues have to be delt with before we can affect a proper delete which merges nodes back together as needed. All do-able, just time needed to change everything and test. Sigh, I'm soooo missing unit tests!
@jsmarkus
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Mar 14, 2012

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why missing? you may use http://visionmedia.github.com/mocha/ for example...
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