PHP Australia Conference 2015

swf_lookat

(PHP 4)

swf_lookatDefine a viewing transformation

Opis

void swf_lookat ( float `\$view_x` , float `\$view_y` , float `\$view_z` , float `\$reference_x` , float `\$reference_y` , float `\$reference_z` , float `\$twist` )

Defines a viewing transformation by giving the viewing position and the coordinates of a reference point in the scene.

Parametry

`view_x`

x-coordinate for the viewing position

`view_y`

y-coordinate for the viewing position

`view_z`

z-coordinate for the viewing position

`reference_x`

x-coordinate for the reference point

`reference_y`

y-coordinate for the reference point

`reference_z`

z-coordinate for the reference point

`twist`

Controls the rotation along with viewer's z axis.

Zwracane wartości

Nie jest zwracana żadna wartość.

Przykład #1 A simple 3D-rotation around a text

``` <?phpheader('Content-type: application/x-shockwave-flash');swf_openfile("php://stdout", 320, 200, 25, 1, 1, 1);swf_ortho(-100, 100, -100, 100, -100, 100); // create 3D coordinatesswf_definefont(0, "Pix3");swf_addcolor(0, 0, 0, 1);swf_fontsize(10);swf_fonttracking(0.2);for (\$i = 0; \$i < 628; \$i += 8) {    \$j = \$i / 100;    swf_pushmatrix();    swf_translate(0, 0, 0);    swf_perspective(100, 1, 0, 10);    swf_lookat(sin(\$j) * 60, 50, cos(\$j) * 60, 0, 0, 0, 0);    swf_definetext (1, 'HotKey@', 0);    swf_translate(-50,0,0);    swf_placeobject(1,10);    swf_definetext(2, 'example.com', 0);    swf_translate(55, 0, 0);    swf_placeobject(2, 11);    swf_showframe();    swf_removeobject(10);    swf_removeobject(11);    swf_popmatrix();}swf_closefile();?> ```

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