Template:Needs Translation/
| 函数名
|
| Function: vector llDetectedTouchUV( integer index );
|
| 参数：integer index–Index of detection information index does not support negative indexes.
|
| 返回值：Returns a vector that is the texture coordinates for where the prim was touched. The x & y vector positions contain the horizontal (u) & vertical (v) texture coordinates respectively (<u, v, 0.0>). Like llDetectedTouchST, the interval of each component will be [0.0, 1.0] unless the texture repeats are set to a non-default value. Increasing or decreasing the texture repeats of the face will change this interval accordingly. Additionally, unlike with llDetectedTouchST, changing a texture's rotation will change the results of this function.
|
| 注意事项
|
注意事项
- If index is out of bounds the script continues to execute without an error message.
- TOUCH_INVALID_TEXCOORD is returned when...
- The avatar's viewer does not support face touch detection.
- To check if face touch detection is supported check the return of llDetectedTouchFace.
- The touch has moved off the surface of the prim.
- The touch happened too close to the edge of the face to determine a location.
- The event triggered is not a touch event.
|
| 示例
|
示例1
default
{
touch_start(integer total_number)
{
integer face = llDetectedTouchFace(0);
vector touchUV = llDetectedTouchUV(0);
// ZERO_VECTOR (<0.0, 0.0, 0.0> ... the origin) is in the bottom left corner of the texture
// touchUV.x goes across the texture from left to right
// touchUV.y goes up the texture from bottom to top
if (face == TOUCH_INVALID_FACE)
llWhisper(PUBLIC_CHANNEL, "Sorry, your viewer doesn't support touched faces.");
else if (touchUV == TOUCH_INVALID_TEXCOORD)
llWhisper(PUBLIC_CHANNEL, "Sorry, the touch position upon the texture could not be determined.");
else
llSay(PUBLIC_CHANNEL, "llDetectedTouchUV(" + (string)touchUV + ")"
+ "\ntouchUV.x = " + (string)touchUV.x
+ "\ntouchUV.y = " + (string)touchUV.y);
}
}
示例2
integer numberOfRows = 12;
integer numberOfColumns = 12;
default
{
touch_start(integer num_detected)
{
vector touchUV = llDetectedTouchUV(0);
// ZERO_VECTOR (<0.0, 0.0, 0.0> ... the origin) is in the bottom left corner of the texture
// touchUV.x goes across the texture from left to right
// touchUV.y goes up the texture from bottom to top
integer columnIndex = (integer) (touchUV.x * numberOfColumns);
integer rowIndex = (integer) (touchUV.y * numberOfRows);
integer cellIndex = rowIndex * numberOfColumns + columnIndex;
llSay(PUBLIC_CHANNEL, "UV grid (" + (string)columnIndex + ", " + (string)rowIndex + ") --> cell " + (string)cellIndex);
}
}
|
