search for in the

 Last updated: Sat, 07 Jan 2012

# PDF_curveto

(PHP 4, PECL pdflib >= 1.0.0)

PDF_curvetoDraw Bezier curve

### 설명

bool PDF_curveto ( resource \$p , float \$x1 , float \$y1 , float \$x2 , float \$y2 , float \$x3 , float \$y3 )

Draws a Bezier curve from the current point, using 3 more control points. 성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.

User Contributed Notes PDF_curveto - [2 notes]
rune at zedeler dot dk
8 years ago
``` Rod's function does not work (the thing produced is not even symmetrical). Here is one that produces a correct approximation to an ellipse: function pdf_ellipse (\$pdfobj,\$x,\$y,\$width,\$height) { // Function to draw an ellipse inscribed in a rectangle // described by lower left (x,y) with width and height.   \$fac = (4*sqrt(2)-4)/3;   \$dx = \$width*(1-\$fac)/2;   \$dy = \$height*(1-\$fac)/2;   pdf_moveto(\$pdfobj, \$x,\$y+\$height/2);   pdf_curveto(\$pdfobj, \$x,\$y+\$height-\$dy, \$x+\$dx,\$y+\$height, \$x+\$width/2,\$y+\$height);   pdf_curveto(\$pdfobj, \$x+\$width-\$dx,\$y+\$height, \$x+\$width,\$y+\$height-\$dy, \$x+\$width,\$y+\$height/2);   pdf_curveto(\$pdfobj, \$x+\$width,\$y+\$dy, \$x+\$width-\$dx,\$y, \$x+\$width/2,\$y);   pdf_curveto(\$pdfobj, \$x+\$dx,\$y, \$x,\$y+\$dy, \$x,\$y+\$height/2); } ```
rod-php at thecomplex dot com
10 years ago
``` function pdf_ellipse_inscribed (\$pdfobj,\$x,\$y,\$width,\$height) { // Function to draw an ellipse inscribed in a rectangle // described by lower left (x,y) with width and height.     pdf_moveto(\$pdfobj, \$x,\$y+\$height/2);     pdf_curveto(\$pdfobj, \$x,\$y+\$height/2,\$x,\$y+\$height,\$x+\$width/2,\$y+\$height);     pdf_curveto(\$pdfobj, \$x+\$width/2,\$y+\$height,\$x+\$width,\$y+\$height,\$x+\$width,\$y+\$height/2);     pdf_curveto(\$pdfobj, \$x+\$width,\$y+\$height/2,\$x+\$width,\$y,\$x+\$width/2,\$y);     pdf_curveto(\$pdfobj, \$x+\$width/2,\$y,\$x,\$y,\$x,\$y+\$height/2); } ```