Programming PHP

Example 10-8. Nonproportional scaling (continued)
pdf_place_image($p, $im, 200/$nx, 600/$ny, 1.0);
pdf_restore($p); // Restore previous
pdf_close_image ($p,$im);
?>
The output of Example 10-8 is shown in Figure 10-8.
Figure 10-8. Nonproportional scaling
Graphics
To draw a graphical shape, first specify a path and then fill and/or stroke the path
with appropriately configured fill and/or stroke colors. The functions that define
these paths are straightforward. For example, to draw a line, you position the cursor
at the starting point of the line using a call to pdf_moveto( ), then specify the path for
this line with a call to pdf_lineto( ). The starting points of other functions, such as
pdf_circle( ) and pdf_rect( ), are defined directly in the calls.
The pdf_moveto( ) function starts the path at a particular point:
pdf_moveto(pdf, x, y);
With pdf_lineto( ), you can draw a line from the current point to another point:
pdf_lineto(pdf, x, y);
Use pdf_circle( ) to draw a circle of radius r at a particular point:
pdf_circle(pdf, x, y, r);
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