ImagickDraw::pathStart

(PECL imagick 2, PECL imagick 3)

ImagickDraw::pathStart — Declares the start of a path drawing list

Descrizione

public ImagickDraw::pathStart(): bool

Avviso

Questa funzione, al momento non è documentata; è disponibile soltanto la lista degli argomenti.

Declares the start of a path drawing list which is terminated by a matching DrawPathFinish() command. All other DrawPath commands must be enclosed between a and a DrawPathFinish() command. This is because path drawing commands are subordinate commands and they do not function by themselves.

Valori restituiti

Nessun valore viene restituito.

Esempi

Example #1 ImagickDraw::pathStart() example

<?php
function pathStart($strokeColor, $fillColor, $backgroundColor) {

    $draw = new \ImagickDraw();

    $draw->setStrokeOpacity(1);
    $draw->setStrokeColor($strokeColor);
    $draw->setFillColor($fillColor);

    $draw->setStrokeWidth(2);
    $draw->setFontSize(72);

    $draw->pathStart();
    $draw->pathMoveToAbsolute(50, 50);
    $draw->pathLineToAbsolute(100, 50);
    $draw->pathLineToRelative(0, 50);
    $draw->pathLineToHorizontalRelative(-50);
    $draw->pathFinish();

    $draw->pathStart();
    $draw->pathMoveToAbsolute(50, 50);
    $draw->pathMoveToRelative(300, 0);
    $draw->pathLineToRelative(50, 0);
    $draw->pathLineToVerticalRelative(50);
    $draw->pathLineToHorizontalAbsolute(350);
    $draw->pathclose();
    $draw->pathFinish();

    $draw->pathStart();
    $draw->pathMoveToAbsolute(50, 300);
    $draw->pathCurveToAbsolute(50, 300, 100, 200, 300, 300);
    $draw->pathLineToVerticalAbsolute(350);
    $draw->pathFinish();

    $imagick = new \Imagick();
    $imagick->newImage(500, 500, $backgroundColor);
    $imagick->setImageFormat("png");

    $imagick->drawImage($draw);

    header("Content-Type: image/png");
    echo $imagick->getImageBlob();
}

?>

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User Contributed Notes 1 note

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v010dya ¶

11 months ago


Between $draw->pathStart() and $draw->pathFinish() you would need to start with $draw->pathMoveToAbsolute(x, y) to initialise the position. All the subsequent calls to "path functions" (including absolute ones) will continue the path.

I would expect pathStart to accept the starting coordinates, and it took me a while to realise that there you need to initialise with a different function.

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