ps_setpolydash(3) [php man page]

PS_SETPOLYDASH(3)							 1							 PS_SETPOLYDASH(3)

ps_setpolydash - Sets appearance of a dashed line

SYNOPSIS

       bool ps_setpolydash (resource  $psdoc, float  $arr)

DESCRIPTION

	Sets the length of the black and white portions of a dashed line. ps_setpolydash(3) is used to set more complicated dash patterns.

PARAMETERS

	      o $psdoc
		- Resource identifier of the postscript file as returned by ps_new(3).

	      o $arr
		-$arr is a list of length elements alternately for the black and white portion.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Drawing a dashed line

	      <?php
	      $ps = ps_new();
	      if (!ps_open_file($ps, "polydash.ps")) {
		 print "Cannot open PostScript file
";
		   exit;
	      }

	      ps_set_info($ps, "Creator", "polydash.php");
	      ps_set_info($ps, "Author", "Uwe Steinmann");
	      ps_set_info($ps, "Title", "Poly dash example");

	      ps_begin_page($ps, 596, 842);
	      ps_setpolydash($ps, array(10, 5, 2, 5));
	      ps_moveto($ps, 100, 100);
	      ps_lineto($ps, 200, 200);
	      ps_stroke($ps);
	      ps_end_page($ps);

	      ps_delete($ps);
	      ?>

	       This example draws a line with a 10 and 2 points long line, and gaps of 5 points inbetween.

SEE ALSO

       ps_setdash(3).

PHP Documentation Group 													 PS_SETPOLYDASH(3)

PS_TRANSLATE(3) 							 1							   PS_TRANSLATE(3)

ps_translate - Sets translation

SYNOPSIS

       bool ps_translate (resource  $psdoc, float  $x, float  $y)

DESCRIPTION

	Sets a new initial point of the coordinate system.

PARAMETERS

	      o $psdoc
		- Resource identifier of the postscript file as returned by ps_new(3).

	      o $x
		- x-coordinate of the origin of the translated coordinate system.

	      o $y
		- y-coordinate of the origin of the translated coordinate system.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Translation of the coordinate system

	      <?php
	      function rectangle($ps) {
		  ps_moveto($ps, 0, 0);
		  ps_lineto($ps, 0, 50);
		  ps_lineto($ps, 50, 50);
		  ps_lineto($ps, 50, 0);
		  ps_lineto($ps, 0, 0);
		  ps_stroke($ps);
	      }

	      $ps = ps_new();
	      if (!ps_open_file($ps, "translate.ps")) {
		print "Cannot open PostScript file
";
		exit;
	      }

	      ps_set_info($ps, "Creator", "translate.php");
	      ps_set_info($ps, "Author", "Uwe Steinmann");
	      ps_set_info($ps, "Title", "Translated example");
	      ps_set_info($ps, "BoundingBox", "0 0 596 842");

	      $psfont = ps_findfont($ps, "Helvetica", "", 0);

	      ps_begin_page($ps, 596, 842);
	      ps_set_text_pos($ps, 100, 100);
	      ps_translate($ps, 500, 750);
	      rectangle($ps);
	      ps_translate($ps, -500, -750);
	      ps_setfont($ps, $psfont, 8.0);
	      ps_show($ps, "Text at initial position");
	      ps_end_page($ps);

	      ps_begin_page($ps, 596, 842);
	      ps_set_text_pos($ps, 100, 100);
	      ps_save($ps);
	      ps_translate($ps, 500, 750);
	      rectangle($ps);
	      ps_restore($ps);
	      ps_setfont($ps, $psfont, 8.0);
	      ps_show($ps, "Text at initial position");
	      ps_end_page($ps);

	      ps_delete($ps);
	      ?>

	      The  above  example  demonstrates  two possible ways to place a graphic (in this case just a rectangle) at any position on the page,
	      while the graphic itself uses its own coordinate system. The trick is to change the origin of the current coordinate  system  before
	      drawing the rectangle. The translation has to be undone after the graphic has been drawn.

	       On the second page a slightly different and more elegant approach is applied. Instead of undoing the translation with a second call
	      of ps_translate(3) the graphics context is saved before modifying the coordinate system and restored after drawing the rectangle.

SEE ALSO

       ps_scale(3), ps_rotate(3).

PHP Documentation Group 													   PS_TRANSLATE(3)