The magical shorten of Agg::conv_stroke

1 Preface

I added the possibility to shorten paths in Convertersconv_stroke and Conv_dash. It ' s good for drawingarroheads with rather thick strokes. Also thre ' s aconverter agg_conv_shoren_path.h that can be usedindependently. I also added agg_conv_concat.h that also helps to workwith markers. Before had to Call:ras.add_path (stroke); Ras.add_path (arrow); Now you can use the agg::conv_concat that simplyconcatenetes the paths into one.

2 Sample Code

M_slider1 (600-10, 276,!flip_y)

Add_ctrl (M_slider1);
M_slider1.range (0,300);

M_slider1.num_steps (30);
M_slider1.value (1);

       //A collapsed process of reduction
        agg::ellipse ell1 ( 230,230,140,150);
        agg::conv_stroke<agg::ellipse> stroke1 (ELL1);
        stroke1.width (30);
        stroke1.shorten (M_slider1.value ());
        ras.add_path (stroke1);


        //similar to shortening
        agg::p ath_ Storage PS;
        ps.move_to (20,30);
        ps.line_to (440,30);
        agg::conv_stroke<agg::p ath_storage> stroke2 (PS);
        stroke2.width (30);
        stroke2.shorten (M_slider1.value ());
        ras.add_path (stroke2);

Agg::conv_stroke Shorten magical