Difference between revisions of "User:Kerik Rau"

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=Code Snippets=
For all intentions this is a dumping ground of information that might be useful.  All the information found here is free to use however you wish with no limitations.


==SLURL Raster Image URL Generator==
I was rather interested in the raster images provided within SL and SLURL.com so I decided to figure out how to replicate it in such a way that it could be incorporated into tools and/or services outside the standard fair offered by Linden Labs.  At some point I may rewrite it to use PHP or offer tips to incorporate it into something like the WMS provider in MapGuide.


===PseudoCode===
{| width="90%"  style="background: #B8E2FF; border: 1px solid #0090FF;"
|- align="center"
| width="150px" | Projects
| Description
|-
| [[ User:Kerik_Rau/Apoc | Apocalypse HUD ]]
| A modular tool designed to reduce code reproduction and provide the shortest path available for a given task.  Thus it is fast and highly scalable by design.
|-
| [[ User:Kerik_Rau/n2k.AppSpot | n2k.AppSpot ]]
| A project aiming to make a name2key and key2name service via Google's App Engine that utilizes the Second Life Search rather than storing keys within a database.
|}


<pre>


//grab the region coordinates and store them
$RegionPos;


//1 Tile = 256m
{| width="90%" style="background: #FFEC80; border: 1px solid #E3AD35;"
$TilePos = $RegionPos/256.0;
|- align="center"
 
| width="150px" | Scripts
//Fix the offset in the service
| Description
$TilePos.y = 1279.0 - $TilePos.y;
|-
 
| [[ User:Kerik_Rau/Simple Slide Show | Simple Slide Show ]]
//genrate the URL, the 0 on the end may be a switch for gif/png, need to read up more on the SL map API
| Throw in the textures and it will automatically rotate through them.
$mapURL = "http://secondlife.com/apps/mapapi/grid/map_image/" \
|-
  + Floor($TilePos.x) + "-" + Floor($TilePos.y) + "-1-0"
| [[ User:Kerik_Rau/MapTileURL | Map Tile URL ]]
</pre>
| An LSL function that returns a string containing the current regions tile URL
 
|-  
 
| [[ User:Kerik_Rau/XY2URL | XY to URL ]]
===LSL===
| A simple script that adds multiple links to a single prim
<lsl>
|}
//SLURL Tile URL Generator - By Kerik Rau
 
//Based on the javascript from SLURL.com, merely an adaptation in LSL
//It should only take a minute or 2 to export this into PHP or other languages
 
//SLURL uses WMS, I still want to look at incorporating it into something like Mapguide
//I will need to look at the implementation to see if this would be easy or a pain
 
vector genTileVec(vector RegPos)
{
    //tiles are in a grid based on the regions, so 256m = 1 tile
    RegPos /= 256.0;
   
    //offset provided in the javascript, really 1278 + 1 (probably 0 -> 1 index difference?)
    RegPos.y = 1279.0 - RegPos.y;
 
    return RegPos;
}
 
string genMapURL()
{ 
    vector TilePos = genTileVec(llGetRegionCorner());
   
    //should look like http://secondlife.com/apps/mapapi/grid/map_image/x-y-zoom-0
    string mapURL = "http://secondlife.com/apps/mapapi/grid/map_image/";
    mapURL += (string) llFloor(TilePos.x);
    mapURL += "-";
    mapURL += (string) llFloor(TilePos.y);
   
    //the 3rd value is something to do with zoom, but only 1 seems to work with this
    //the 4th value is undefined, omitting it works but I leave it in to match SLURL
    mapURL += "-1-0";
    return mapURL;
}
 
 
default
{
    state_entry()
    {
        llSetText("SLURL Raster Image URL Generator\nOpens the image of the current sim\n(in a browser)", <1,1,1>, 1);
    }
   
    touch_start(integer numdet)
    {
        integer i;
        for(i = 0; i < numdet; ++i)
            llLoadURL(llDetectedKey(i), "load this page to see the sim image", genMapURL());
       
    }
}
 
</lsl>

Latest revision as of 22:01, 26 January 2009

For all intentions this is a dumping ground of information that might be useful. All the information found here is free to use however you wish with no limitations.


Projects Description
Apocalypse HUD A modular tool designed to reduce code reproduction and provide the shortest path available for a given task. Thus it is fast and highly scalable by design.
n2k.AppSpot A project aiming to make a name2key and key2name service via Google's App Engine that utilizes the Second Life Search rather than storing keys within a database.


Scripts Description
Simple Slide Show Throw in the textures and it will automatically rotate through them.
Map Tile URL An LSL function that returns a string containing the current regions tile URL
XY to URL A simple script that adds multiple links to a single prim
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