php TCPDF：如何以正确的方式设置字体大小
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TCPDF: How to set FONT SIZE in right way
提问by Patrik
I want to set some text-blocks by TCPDF. But I have some problems with font size. First text block is on x-y/5-5, and his font size is 5 to. But it is samaller then 5. Font-size in TCPDF is not in the same units like other dimensions ?
我想通过 TCPDF 设置一些文本块。但是我对字体大小有一些问题。第一个文本块在 xy/5-5 上，他的字体大小是 5 to。但它比其他尺寸小 5. TCPDF 中的字体大小与其他尺寸的单位不同？
PHP
PHP
$text1 = 'AAAg';
$text1_x = 5;
$text1_y = 5;
$text1_font_size = 5;
$text2 = 'BBBg';
$text2_x = 10;
$text2_y = 10;
$text2_font_size = 10;
$text3 = 'CCCg';
$text3_x = 15;
$text3_y = 15;
$text3_font_size = 15;
// I tried $pdf->Cell and $pdf->Text... both are doing the same...
回答by Patrik
OK I found answer and solution. When we create new PDF document in tcPDF, dimensions units whole document can be in formats like mm, cm, pt, px. But fonts are in points - pt.
好的，我找到了答案和解决方案。当我们在 tcPDF 中创建新的 PDF 文档时，整个文档的尺寸单位可以是 mm、cm、pt、px 等格式。但是字体以点为单位 - pt。
So solution...
所以解决...
- Set the documents units with 'setPageUnit'.
- If we have dimensions in pixels, we must convert it by 'pixelsToUnits'.
- 使用“ setPageUnit”设置文档单位。
- 如果我们有以像素为单位的尺寸，我们必须将其转换为“ pixelsToUnits”。
PHP - tcPDF Exampe:
PHP-tcPDF 示例：
$pdf->setPageUnit('pt');
$document_width = $pdf->pixelsToUnits('100');
$document_height = $pdf->pixelsToUnits('100');
$x = $pdf->pixelsToUnits('20');
$y = $pdf->pixelsToUnits('20');
$font_size = $pdf->pixelsToUnits('20');
$txt = 'AAAg';
$pdf->SetFont ('helvetica', '', $font_size , '', 'default', true );
$pdf->Text ( $x, $y, $txt, false, false, true, 0, 0, '', false, '', 0, false, 'T', 'M', false );
回答by Selva kumar
Changing font size in TCPDF ... Which can set using below code :
更改 TCPDF 中的字体大小...可以使用以下代码进行设置：
$pdf = new TCPDF();
$pdf->SetFont('Font family', '', font size here);
Which are default setting in TCPDF
哪些是 TCPDF 中的默认设置
