<aname="l13"></a></span><spanclass=cF9>I64</span><spanclass=cF0> i, w = </span><spanclass=cF5>Fs</span><spanclass=cF0>->pix_width, h = </span><spanclass=cF5>Fs</span><spanclass=cF0>->pix_height;
<aname="l14"></a></span><spanclass=cF1>F64</span><spanclass=cF0> scale = h / </span><spanclass=cFE>5</span><spanclass=cF0>.</span><spanclass=cFE>0</span><spanclass=cF0>;
<aname="l16"></a></span><spanclass=cF1>for</span><spanclass=cF0> (i = -w / </span><spanclass=cFE>2</span><spanclass=cF0>; i <= w / </span><spanclass=cFE>2</span><spanclass=cF0>; i++)
<aname="l17"></a></span><spanclass=cF5>GrLine</span><spanclass=cF0>(dc, w / </span><spanclass=cFE>2</span><spanclass=cF0> + i, h / </span><spanclass=cFE>2</span><spanclass=cF0> - scale * f</span><spanclass=cF7>(</span><spanclass=cF0>i / scale * </span><spanclass=cFE>2</span><spanclass=cF0> * </span><spanclass=cF3>pi</span><spanclass=cF7>)</span><spanclass=cF0>,
<aname="l18"></a> w / </span><spanclass=cFE>2</span><spanclass=cF0> + i + </span><spanclass=cFE>1</span><spanclass=cF0>, h / </span><spanclass=cFE>2</span><spanclass=cF0> - scale * f</span><spanclass=cF7>(</span><spanclass=cF0>(i + </span><spanclass=cFE>1</span><spanclass=cF0>) / scale * </span><spanclass=cFE>2</span><spanclass=cF0> * </span><spanclass=cF3>pi</span><spanclass=cF7>)</span><spanclass=cF0>);
<aname="l23"></a></span><spanclass=cF9>I64</span><spanclass=cF0> i, w = </span><spanclass=cF5>Fs</span><spanclass=cF0>->pix_width, h = </span><spanclass=cF5>Fs</span><spanclass=cF0>->pix_height;
<aname="l24"></a></span><spanclass=cF1>F64</span><spanclass=cF0> scale = h / </span><spanclass=cFE>5</span><spanclass=cF0>.</span><spanclass=cFE>0</span><spanclass=cF0>;
<aname="l26"></a></span><spanclass=cF1>for</span><spanclass=cF0> (i = -w / </span><spanclass=cFE>2</span><spanclass=cF0>; i <= w / </span><spanclass=cFE>2</span><spanclass=cF0>; i++)
<aname="l27"></a></span><spanclass=cF5>GrLine</span><spanclass=cF0>(dc, w / </span><spanclass=cFE>2</span><spanclass=cF0> + i, h / </span><spanclass=cFE>2</span><spanclass=cF0> - scale * f</span><spanclass=cF7>(</span><spanclass=cF0>i / scale, T</span><spanclass=cF7>)</span><spanclass=cF0>, w / </span><spanclass=cFE>2</span><spanclass=cF0> + i + </span><spanclass=cFE>1</span><spanclass=cF0>, h / </span><spanclass=cFE>2</span><spanclass=cF0> - scale * f</span><spanclass=cF7>(</span><spanclass=cF0>(i + </span><spanclass=cFE>1</span><spanclass=cF0>) / scale, T</span><spanclass=cF7>)</span><spanclass=cF0>);
<aname="l32"></a></span><spanclass=cF9>I64</span><spanclass=cF0> i, w = </span><spanclass=cF5>Fs</span><spanclass=cF0>->pix_width, h = </span><spanclass=cF5>Fs</span><spanclass=cF0>->pix_height;
<aname="l33"></a></span><spanclass=cF1>F64</span><spanclass=cF0> scale = h / </span><spanclass=cFE>5</span><spanclass=cF0>.</span><spanclass=cFE>0</span><spanclass=cF0>;
<aname="l38"></a></span><spanclass=cF5>GrLine</span><spanclass=cF0>(dc, </span><spanclass=cFE>0</span><spanclass=cF0>, h / </span><spanclass=cFE>2</span><spanclass=cF0>, w - </span><spanclass=cFE>1</span><spanclass=cF0>, h / </span><spanclass=cFE>2</span><spanclass=cF0>);
<aname="l39"></a></span><spanclass=cF5>GrLine</span><spanclass=cF0>(dc, w / </span><spanclass=cFE>2</span><spanclass=cF0>, </span><spanclass=cFE>0</span><spanclass=cF0>, w / </span><spanclass=cFE>2</span><spanclass=cF0>, h - </span><spanclass=cFE>1</span><spanclass=cF0>);
<aname="l40"></a></span><spanclass=cF1>for</span><spanclass=cF0> (i = -</span><spanclass=cFE>2</span><spanclass=cF0>; i <= </span><spanclass=cFE>2</span><spanclass=cF0>; i++)
<aname="l43"></a></span><spanclass=cF5>GrLine</span><spanclass=cF0>(dc, w / </span><spanclass=cFE>2</span><spanclass=cF0> - </span><spanclass=cFE>3</span><spanclass=cF0>, h / </span><spanclass=cFE>2</span><spanclass=cF0> - scale * i, w / </span><spanclass=cFE>2</span><spanclass=cF0> + </span><spanclass=cFE>3</span><spanclass=cF0>, h / </span><spanclass=cFE>2</span><spanclass=cF0> - scale * i);
<aname="l50"></a></span><spanclass=cF1>for</span><spanclass=cF0> (i = -</span><spanclass=cFE>4</span><spanclass=cF0>; i <= </span><spanclass=cFE>4</span><spanclass=cF0>; i++)
<aname="l53"></a></span><spanclass=cF5>GrLine</span><spanclass=cF0>(dc, w / </span><spanclass=cFE>2</span><spanclass=cF0> + scale * i, h / </span><spanclass=cFE>2</span><spanclass=cF0> - </span><spanclass=cFE>3</span><spanclass=cF0>, w / </span><spanclass=cFE>2</span><spanclass=cF0> + scale * i, h / </span><spanclass=cFE>2</span><spanclass=cF0> + </span><spanclass=cFE>3</span><spanclass=cF0>);