(PECL imagick 2, PECL imagick 3)
ImagickDraw::affine — Ajusta la matriz de transformación afín actual
Esta función está actualmente no documentada; solo la lista de sus argumentos está disponible.
Ajusta la matriz de transformación afín actual con la matriz de transformación afín especificada.
affineLos parámetros de la matriz afín
No se retorna ningún valor.
Ejemplo #1 Ejemplo de ImagickDraw::affine()
<?php
function affine($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeWidth(1);
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$PI = 3.141592653589794;
$angle = 60 * $PI / 360;
//Scale the drawing co-ordinates.
$affineScale = array("sx" => 1.75, "sy" => 1.75, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);
//Shear the drawing co-ordinates.
$affineShear = array("sx" => 1, "sy" => 1, "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0);
//Rotate the drawing co-ordinates. The shear affine matrix
//produces incorrectly scaled drawings.
$affineRotate = array("sx" => cos($angle), "sy" => cos($angle), "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0,);
//Translate (offset) the drawing
$affineTranslate = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 30, "ty" => 30);
//The identiy affine matrix
$affineIdentity = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);
$examples = [$affineScale, $affineShear, $affineRotate, $affineTranslate, $affineIdentity,];
$count = 0;
foreach ($examples as $example) {
$draw->push();
$draw->translate(($count % 2) * 250, intval($count / 2) * 250);
$draw->translate(100, 100);
$draw->affine($example);
$draw->rectangle(-50, -50, 50, 50);
$draw->pop();
$count++;
}
//Create an image object which the draw commands can be rendered into
$image = new \Imagick();
$image->newImage(500, 750, $backgroundColor);
$image->setImageFormat("png");
//Render the draw commands in the ImagickDraw object
//into the image.
$image->drawImage($draw);
//Send the image to the browser
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>