Difference between revisions of "XB PointStream"
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<pre> | <pre> | ||
/* | /* | ||
| − | Add an event listener to the parser. Once the event | + | Add an event listener to the parser. Once the event occurs, the parser |
| − | associated function | + | will call the associated function and pass in a reference to itself. |
| − | to itself | + | |
| + | The parser needs to pass itself back to the library since the library could | ||
| + | be working with many parsers simultaneously. | ||
| − | @param {String} eventName - can be | + | @param {String} eventName - can be one of the following: |
| − | "onstart" - must occur exactly once | + | "onstart" - must occur exactly once - func(parser) |
| − | "onparse" - must occur one or many times | + | "onparse" - must occur one or many times - func(parser, {"VERTEX":[...], "COLOR":[...], etc...} |
| − | "onfinish" - must occur exactly once | + | "onfinish" - must occur exactly once - func(parser) |
"hook" - ? | "hook" - ? | ||
| − | @param {Function} func - the function to call when the event occurs | + | @param {Function} func - the function to call when the event occurs. |
*/ | */ | ||
addEventListener(eventName, func) | addEventListener(eventName, func) | ||
| Line 51: | Line 53: | ||
Begins to load the resource | Begins to load the resource | ||
| − | @param {String} path - | + | @param {String} path - path to resource |
*/ | */ | ||
load(path) | load(path) | ||
Revision as of 16:59, 23 November 2010
Contents
Releases
A cross-browser JavaScript tool which will emulate Arius3D's PointStream viewer. It will be able to quickly render a large amount of point cloud data to the <canvas> tag using WebGL.
XBPS 0.1
XBPS 0.2
XBPS 0.3
XBPS 0.4
XBPS 0.4.5 [Only Lib | Full]
XB PointStream Dev Links
3D Image Gallery
Blogs
Specifications
LightHouse
Github
Twitter
YouTube Videos
Development Resources
WebGL Specification
WebGL Cheat Sheet
OpenGLES 2.0 man pages
Parser Interface
/*
Add an event listener to the parser. Once the event occurs, the parser
will call the associated function and pass in a reference to itself.
The parser needs to pass itself back to the library since the library could
be working with many parsers simultaneously.
@param {String} eventName - can be one of the following:
"onstart" - must occur exactly once - func(parser)
"onparse" - must occur one or many times - func(parser, {"VERTEX":[...], "COLOR":[...], etc...}
"onfinish" - must occur exactly once - func(parser)
"hook" - ?
@param {Function} func - the function to call when the event occurs.
*/
addEventListener(eventName, func)
/*
Begins to load the resource
@param {String} path - path to resource
*/
load(path)
/*
Get the version of this parser.
@returns {String} parser version
*/
getVersion()
/*
Get the number of points which have been parsed.
@returns {Number} the number of points parsed so far by the parser.
*/
getNumParsedPoints()
/*
Get the total number of points in the point cloud, including points
which have not yet been parsed.
@returns {Number} the total number of points in the resource or -1 if unknown.
*/
getNumTotalPoints()
/*
Get the progress of the parser, how much it has parsed so far.
@returns {Number} value from 0 to 1 or -1 if unknown.
*/
getProgress()
/*
The size of the resource in bytes.
@returns {Number} the number of bytes in the resource or -1 if unknown.
*/
getFileSize()
Performance Issue Ideas
- Spatially partition point cloud into Bounding volume hierarchy and do bounding volume frustum culling
- Do static rendering
- Render low LOD when rotating point cloud
- Push as much as we can to CPU and GPU
- Use progressive "mesh" optimization to render objects if they are far from the camera
- Allow user to control LOD
- Stream point cloud, dynamically create and merge bounding volumes
- Pre-create Bounding volume hierarchy
