Fix a bug related to plot's title positioning - gsl-shell.git - gsl-shell

diff --git a/agg-plot/plot.h b/agg-plot/plot.h
index bd2dc600..539b29c0 100644
--- a/agg-plot/plot.h
+++ b/agg-plot/plot.h

@@ -592,11 +592,12 @@ agg::trans_affine plot<VS,RM>::draw_mini_plots(canvas_type& canvas,

const double title_text_size = 12.0 * scale;

const double th = approx_text_height(title_text_size);

- double labx = canvas_mtx.tx + canvas_mtx.sx * 0.5;

- double laby = canvas_mtx.sy - (ptpad + dyt + title_text_size);

+ double x = 0.5, y = 1.0;

+ canvas_mtx.transform(&x, &y);

+ y -= ptpad + dyt + title_text_size;

draw::text title(m_title.cstr(), title_text_size, line_width, 0.5, 0.0);

- title.set_point(labx, laby);

+ title.set_point(x, y);

title.apply_transform(identity_matrix, 1.0);

canvas.draw(title, colors::black);