ImagickDraw::affine

bool ImagickDraw::affine ( array $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();
}

?>

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