CairoContext::moveTo

(PECL cairo >= 0.1.0)

The moveTo purpose

public void CairoContext::moveTo ( string $x, string $y )

Object oriented style (method):

Procedural style:

void cairo_move_to ( CairoContext $context , string $x , string $y )

Begin a new sub-path. After this call the current point will be (x, y).

Parameters:

context

A valid CairoContext object.

The x coordinate of the new position.

The y coordinate of the new position

Returns:

No value is returned.

Examples:

Object oriented style

<?php

$s = new CairoImageSurface(CairoFormat::ARGB32, 100, 100);
$c = new CairoContext($s);

$c->setSourceRgb(0, 0, 0);
$c->paint();

// Move 10 pixels across, and 10 pixels down
$c->moveTo(10, 10);
$c->lineTo(90, 90);
$c->setLineWidth(2);
$c->setSourceRgb(1, 1, 1);
$c->stroke();

// Move 90 pixels across, and 10 pixels down
$c->moveTo(90, 10);
$c->lineTo(10, 90);
$c->setLineWidth(2);
$c->setSourceRgb(1, 1, 1);
$c->stroke();

$s->writeToPng(dirname(__FILE__) . '/CairoContext_moveTo.png');
?>

The above example will output something similar to:

...

Procedural style

<?php

$s = cairo_image_surface_create(CAIRO_SURFACE_TYPE_IMAGE, 100, 100);
$c = cairo_create($s);

cairo_set_source_rgb($c, 0, 0, 0);
cairo_paint($c);

// Move 10 pixels across, and 10 pixels down
cairo_move_to($c, 10, 10);
cairo_line_to($c, 90, 90);
cairo_set_line_width($c, 2);
cairo_set_source_rgb($c, 1, 1, 1);
cairo_stroke($c);

// Move 90 pixels across, and 10 pixels down
cairo_move_to($c, 90, 10);
cairo_line_to($c, 10, 90);
cairo_set_line_width($c, 2);
cairo_set_source_rgb($c, 1, 1, 1);
cairo_stroke($c);

cairo_surface_write_to_png($s, dirname(__FILE__) . '/cairo_move_to.png');
?>

The above example will output something similar to:

...

Links:

http://php.net/manual/en/cairocontext.moveto.php

doc_php

2016-02-24 15:59:01

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