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🏠 Root / opt / alt / pdflib-lite / usr / share / doc / alt-pdflib-lite / examples / php / examples.php5 /

✏️ Editing: starter_graphics.php

<?php
#!/usr/bin/perl
# $Id: starter_graphics.php,v 1.1.2.1 2007/12/29 23:26:06 rjs Exp $
# Starter Graphics:
# Create some basic examples of vector graphics
#
# Stroke a line, curve, circle, arc, and rectangle using the current line width
# and stroke color. Stroke and fill a rectangle.
# Draw an arc segment by drawing a line and an arc, closing the path and
# filling and stroking it.
# Draw a rectangle and use it as the clipping a path. Draw and fill a circle
# using the clipping path defined.
#
# Required software: PDFlib Lite/PDFlib/PDFlib+PDI/PPS 7
# Required data: none

# This is where the data files are. Adjust as necessary.
$searchpath = "../data";
$title = "Starter Graphics";

$xt=20;
$x = 210;
$y=770;
$dy=90;

try {
    # create a new PDFlib object
    $p = new PDFlib();

$p->set_parameter("SearchPath", $searchpath);

# This means we must check return values of load_font() etc.
    $p->set_parameter("errorpolicy", "return");

if ($p->begin_document("", "") == 0) {
	die("Error: " .  $p->get_errmsg());
    }

$p->set_info("Creator", "PDFlib Cookbook");
    $buf = $title . '  $Revision: 1.1.2.1 $';
    $p->set_info("Title", $buf);

# Load the font; for PDFlib Lite: change "unicode" to "winansi"
    $font = $p->load_font("Helvetica", "winansi", "");
    if ($font == 0) {
	die("Error: " .  $p->get_errmsg());
    }

# Start an A4 page
    $p->begin_page_ext(0, 0, "width=a4.width height=a4.height");

# Set the font
    $p->setfont($font, 14);

# Set the line width
    $p->setlinewidth(2.0);

# Set the stroke color
    $p->setcolor("stroke", "rgb", 0.0, 0.5, 0.5, 0.0);

# Set the fill color
    $p->setcolor("fill", "rgb", 0.0, 0.85, 0.85, 0.0);

# -------------
    # Stroke a line
    # -------------

# Set the current point for graphics output
    $p->moveto($x, $y);

# Draw a line from the current point to the supplied point
    $p->lineto($x+300, $y+50);

# Stroke the path using the current line width and stroke color, and
    # clear it
    
    $p->stroke();

# Output some descriptive black text
    $p->fit_textline("lineto() and stroke()", $xt, $y,
	"fillcolor={gray 0}");

# --------------
    # Stroke a curve
    # --------------

# Set the current point for graphics output
    $p->moveto($x, $y-=$dy);

# Draw a B�zier curve from the current point to (x3, y3), using three
    # control points
    
    $p->curveto($x+50, $y+40, $x+200, $y+80, $x+300, $y+30);

# Stroke the path using the current line width and stroke color, and
    # clear it
    
    $p->stroke();

# Output some descriptive black text
    $p->fit_textline("curveto() and stroke()", $xt, $y, 
	"fillcolor={gray 0}");

# ---------------
    # Stroke a circle
    # ---------------

# Draw a circle at position (x, y) with a radius of 40
    $p->circle($x, $y-=$dy, 40);

# Stroke the path using the current line width and stroke color, and
    # clear it
    
    $p->stroke();

# Output some descriptive black text
    $p->fit_textline("circle() and stroke()", $xt, $y,
	"fillcolor={gray 0}");

# ---------------------
    # Stroke an arc segment
    # ---------------------

# Draw an arc segment counterclockwise at position (x, y) with a radius
    # of 40 starting at an angle of 90 degrees and ending at 180 degrees
    
    $p->arc($x, $y-=$dy+20, 40, 90, 180);

# Stroke the path using the current line width and stroke color, and
    # clear it
    
    $p->stroke();

# Output some descriptive black text
    $p->fit_textline("arc() and stroke()", $xt, $y,
	"fillcolor={gray 0}");

# ------------------
    # Stroke a rectangle
    # ------------------

# Draw a rectangle at position (x, y) with a width of 200 and a height
    # of 50
    
    $p->rect($x, $y-=$dy, 200, 50);

# Stroke the path using the current line width and stroke color, and
    # clear it
    
    $p->stroke();

# Output some descriptive black text
    $p->fit_textline("rect() and stroke()", $xt, $y,
	"fillcolor={gray 0}");

# ----------------
    # Fill a rectangle
    # ----------------

# Draw a rectangle at position (x, y) with a width of 200 and a height
    # of 50
    
    $p->rect($x, $y-=$dy, 200, 50);

# Fill the path using current fill color, and clear it
    $p->fill();

# Output some descriptive black text
    $p->fit_textline("rect() and fill()", $xt, $y,
	"fillcolor={gray 0}");

# ---------------------------
    # Fill and stroke a rectangle
    # ---------------------------

# Draw a rectangle at position (x, y) with a width of 200 and a height
    # of 50
    
    $p->rect($x, $y-=$dy, 200, 50);

# Fill and stroke the path using the current line width, fill color,
    # and stroke color, and clear it
    
    $p->fill_stroke();

# Output some descriptive black text
    $p->fit_textline("rect() and fill_stroke()", $xt, $y,
	"fillcolor={gray 0}");

# -------------------------------------------------------------
    # Draw a line and an arc, close the path and fill and stroke it
    # -------------------------------------------------------------

# Set the current point for graphics output
    $p->moveto($x-40, $y-=$dy);

# Draw a line from the current point to the supplied point
    $p->lineto($x, $y);

# Draw an arc segment counterclockwise at position (x, y) with a radius
    # of 40 starting at an angle of 90 degrees and ending at 180 degrees
    
    $p->arc($x, $y, 40, 90, 180);

# Close the path and stroke and fill it, i.e. close the current subpath
    # (add a straight line segment from the current point to the starting
    # point of the path), and stroke and fill the complete current path
    
    $p->closepath_fill_stroke();

# Output some descriptive black text
    $p->fit_textline("lineto(), arc(), and", $xt, $y+20,
	"fillcolor={gray 0}");
    $p->fit_textline("closepath_fill_stroke()", $xt, $y,
	"fillcolor={gray 0}");

# -----------------------------------------------------------------
    # Draw a rectangle and use it as the clipping a path. Draw and fill
    # a circle and clip it according to the clipping path defined.
    # -----------------------------------------------------------------

# Save the current graphics state including the current clipping
    # path which is set to the entire page by default
    
    $p->save();

# Draw a rectangle at position (x, y) with a width of 200 and a height
    # of 50
    
    $p->rect($x, $y-=$dy, 200, 50);

# Use the current path as the clipping path for subsequent operations
    $p->clip();

# Draw a circle at position (x, y) with a radius of 100
    $p->circle($x, $y, 80);

# Fill the path with the current fill color and clear it
    $p->fill();

# Restore the graphics state which has been saved above
    $p->restore();

# Output some descriptive black text
    $p->fit_textline("rect(), clip(),", $xt, $y+20,
	"fillcolor={gray 0}");
    $p->fit_textline("circle(), and fill()", $xt, $y,
	"fillcolor={gray 0}");

$p->end_page_ext("");

$p->end_document("");

$buf = $p->get_buffer();
    $len = strlen($buf);

header("Content-type: application/pdf");
    header("Content-Length: $len");
    header("Content-Disposition: inline; filename=hello.pdf");
    print $buf;

}
catch (PDFlibException $e) {
    die("PDFlib exception occurred in hello sample:\n" .
        "[" . $e->get_errnum() . "] " . $e->get_apiname() . ": " .
        $e->get_errmsg() . "\n");
}
catch (Exception $e) {
    die($e);
}

$p = 0;

?>