Pdf/Canvas/Interface.php

Method signatures: drawEllipse($x1, $y1, $x2, $y2); drawEllipse($x1, $y1, $x2, $y2, $startAngle, $endAngle);

If upper right corner is not specified then canvas heght and width are used.

Method signatures: drawCircle($x, $y, $radius); drawCircle($x, $y, $radius, $fillType); drawCircle($x, $y, $radius, $startAngle, $endAngle); drawCircle($x, $y, $radius, $startAngle, $endAngle, $fillType);

It's not a really circle, because PDF supports only cubic Bezier curves. But very good approximation. It differs from a real circle on a maximum 0.00026 radiuses (at PI/8, 3PI/8, 5PI/8, 7PI/8, 9PI/8, 11PI/8, 13PI/8 and 15PI/8 angles). At 0, PI/4, PI/2, 3PI/4, PI, 5PI/4, 3PI/2 and 7*PI/4 it's exactly a tangent to a circle.

Method signatures: drawEllipse($x1, $y1, $x2, $y2); drawEllipse($x1, $y1, $x2, $y2, $fillType); drawEllipse($x1, $y1, $x2, $y2, $startAngle, $endAngle); drawEllipse($x1, $y1, $x2, $y2, $startAngle, $endAngle, $fillType);

If $fillType is Zend_Pdf_Page::SHAPE_DRAW_FILL_AND_STROKE or Zend_Pdf_Page::SHAPE_DRAW_FILL, then polygon is automatically closed. See detailed description of these methods in a PDF documentation (section 4.4.2 Path painting Operators, Filling)

Fill types: Zend_Pdf_Page::SHAPE_DRAW_FILL_AND_STROKE - fill rectangle and stroke (default) Zend_Pdf_Page::SHAPE_DRAW_STROKE - stroke rectangle Zend_Pdf_Page::SHAPE_DRAW_FILL - fill rectangle

Fill types: Zend_Pdf_Page::SHAPE_DRAW_FILL_AND_STROKE - fill rectangle and stroke (default) Zend_Pdf_Page::SHAPE_DRAW_STROKE - stroke rectangle Zend_Pdf_Page::SHAPE_DRAW_FILL - fill rectangle

radius is an integer representing radius of the four corners, or an array of four integers representing the radius starting at top left, going clockwise

Be sure to consult the PDF reference to ensure your syntax is correct. No attempt is made to ensure the validity of the stream data.

This takes a snapshot of the currently applied style, position, clipping area and any rotation/translation/scaling that has been applied.

$alpha == 0 - transparent $alpha == 1 - opaque

Transparency modes, supported by PDF: Normal (default), Multiply, Screen, Overlay, Darken, Lighten, ColorDodge, ColorBurn, HardLight, SoftLight, Difference, Exclusion

Pattern is an array of floats: array(on_length, off_length, on_length, off_length, ...) or Zend_Pdf_Page::LINE_DASHING_SOLID constant Phase is shift from the beginning of line.