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Code Examples / Notes » pdf_shading

mike zmuda

<?php //Here be the circle code... Arrrrr //Notes: // The shading command can create a simple shaded // circle, a donut (mmmmm.... donuts....,) or a circle // with a hi-lite (aka offset shade.) // // A simple circle is just two circles with the same origin, // in which one has a radius of x, and the other has a // radius of 0. // // A donut is a circle with two circles with the same // origin, in which one has a radius of x, and the // other has a radius of y (presumably, non-zero.) // // A hi-lit circle is more like a sphere in that is has an // area (presumably a highlight,) which is off-center. //Standard php5 init routines. // NOTE: For php4, do pdf_[commandname]($p,.....) // - example: PDF_set_info($p,"Title", "Moe"); $p = new PDFlib(); if ($p->begin_document("", "") == 0) { die("Error: " . $p->get_errmsg()); } $p->set_info("Creator", "Homer"); $p->set_info("Author", "Lisa"); $p->set_info("Title", "Simpsons Circle"); $p->begin_page_ext(612, 792, ""); // This is letter. //Smart idea to set up clipping: $p->save(); //Set up clipping rectangle at pos (100,100) with wid/hei=100. $p->rect(100,600,100,100); //Designate it a CLIPPING rectangle. $p->clip(); //Simple shaded circle // radial = circular. (axial = linear) // Origin of first circle = 150,650 // Origin of second circle = 150,650 // Hilite color = 1 (full on in a grayscale image = white.) // 0,0,0 = the rest of the color pallatte. // options: "r0=50 r1=0": // Radius of circle "0" = 50. // Radius of circle "1" = 0. (in other words, not a donut!) $shading=$p->shading("radial", 150, 650, 150, 650, 1, 0, 0, 0, "r0=50 r1=0"); //This command actually does the shading. $p->shfill($shading); //Restore after saving... $p->restore(); //Simple, non-offset (aka "funky") donut. (mmmmmm....) // Again, set up clipping rect. $p->save(); // This time at pos 300, 600 with width & height at 100 ea. $p->rect(300,600,100,100); $p->clip(); //Le Donut // radial = circular // Origin of first circle = 350,650 // Origin of second circle = 350,650 // Hilite color = 1 (white) // 0,0,0 = the rest of the color pallatte. // options: "r0=50 r1=25": // Radius of circle "0" = 50. // Radius of circle "1" = 25. (in other words, a donut!) $shading=$p->shading("radial", 350, 650, 350, 650, 1, 0, 0, 0, "r0=50 r1=25"); $p->shfill($shading); $p->restore(); //And finally, the hilight sphere / orb of death... whatever. // Again, set up clipping rect... $p->save(); $p->rect(500,600,100,100); $p->clip(); //Simple shaded circle // radial = circular. // Origin of first circle = 550,650 // Origin of second circle = 575,675 // Hilite color = 1 // 0,0,0 = the rest of the color pallatte. // options: "r0=50 r1=0": // Radius of circle "0" = 50. // Radius of circle "1" = 0. (a solid) $shading=$p->shading("radial", 550, 650, 575, 675, 1, 0, 0, 0, "r0=50 r1=0"); $p->shfill($shading); $p->restore(); //Send the end-of-page routines. $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=CircTest.pdf"); print $buf; ?>

PDF_shading

Define blend ()
int PDF_shading ( resource pdfdoc, string shtype, float x0, float y0, float x1, float y1, float c1, float c2, float c3, float c4, string optlist )

Code Examples / Notes » pdf_shading

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PDF_shading

Define blend () int PDF_shading ( resource pdfdoc, string shtype, float x0, float y0, float x1, float y1, float c1, float c2, float c3, float c4, string optlist )

Code Examples / Notes » pdf_shading

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Define blend ()
int PDF_shading ( resource pdfdoc, string shtype, float x0, float y0, float x1, float y1, float c1, float c2, float c3, float c4, string optlist )