Sets the font pointsize to use when annotating with text

# ImagickDraw::setFontSize

(PECL imagick 2, PECL imagick 3)

ImagickDraw::setFontSize — Sets the font pointsize to use when annotating with text

### 说明

public function ImagickDraw::setFontSize(float `$point_size`): bool
警告

本函数还未编写文档，仅有参数列表。

Sets the font pointsize to use when annotating with text.

### 参数

`point_size`

  the point size

### 返回值

没有返回值。

### 示例

示例 #1 ImagickDraw::setFontSize() example

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

        $draw = new \ImagickDraw();

        $draw->setStrokeOpacity(1);
        $draw->setStrokeColor($strokeColor);
        $draw->setFillColor($fillColor);
        $draw->setStrokeWidth(2);
        $draw->setFont("../fonts/Arial.ttf");

        $sizes = [24, 36, 48, 60, 72];

        foreach ($sizes as $size) {
            $draw->setFontSize($size);
            $draw->annotation(50, ($size * $size / 16), "Lorem Ipsum!");
        }

        $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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