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cpdf_rlineto
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cpdf_rlineto

Name

cpdf_rlineto — Draws a line relative to current point

Synopsis

bool cpdf_rlineto(pdfdoc, x, y[, mode]); resource pdfdoc: PDF document identifier double x: Relative x coordinate double y: Relative y coordinate int mode (optional): Units mode

Returns

TRUE on success or FALSE on error

Description

Draws a line from the current drawing point by the amount specified in the x and y coordinates relative the the current drawing position.

If mode is specified, coordinates are calculated in PostScript points. There are usually 72 PostScript points to an inch. If not specified or set to 0, then the pages default units are used.

Version

Since versions 3.0.9 and 4.0

Example

Example 144. Draw a simple shape

// start a PDF document
$cpdf = cpdf_open(0, "test.pdf");

// create a 600x400 page
cpdf_page_init($cpdf, 1, 0, 600, 400, 1);

// move the pointer
cpdf_moveto($cpdf, 50, 345);

// draw the first line
cpdf_lineto($cpdf, 150, 345);

// draw next lines relative to current pointer position
cpdf_rlineto($cpdf, 50, 50);
cpdf_rlineto($cpdf, 50, -50);

// stroke the lines
cpdf_stroke($cpdf);

// close and write document
cpdf_finalize($cpdf);
cpdf_close($cpdf);

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.