| author | Francesco Abbate <francesco.bbt@gmail.com> | 2009年12月17日 11:02:22 +0000 |
|---|---|---|
| committer | Francesco Abbate <francesco.bbt@gmail.com> | 2009年12月17日 11:02:22 +0000 |
| commit | 720b18d7f1a5dba6ebc4c4f4ea4a5c2e1a8b74d4 (patch) | |
| tree | 1f6da5d02f842a1866f3cb78dd12f37332473d66 /agg-plot/plot.cpp | |
| parent | d00328bd46965223c83f3880204943d8e5844034 (diff) | |
| download | gsl-shell-720b18d7f1a5dba6ebc4c4f4ea4a5c2e1a8b74d4.tar.gz | |
| -rw-r--r-- | agg-plot/plot.cpp | 75 |
diff --git a/agg-plot/plot.cpp b/agg-plot/plot.cpp index 6c908c8c..32a37bff 100644 --- a/agg-plot/plot.cpp +++ b/agg-plot/plot.cpp @@ -7,78 +7,3 @@ #include "agg_conv_contour.h" #include "agg_vcgen_markers_term.h" #include "agg_bounding_rect.h" - -void -plot::bounding_box(double *px1, double *py1, double *px2, double *py2) -{ - bool is_set = false; - double& m_x1 = *px1; - double& m_y1 = *py1; - double& m_x2 = *px2; - double& m_y2 = *py2; - - for (unsigned j = 0; j < m_elements.size(); j++) - { - drawable& d = m_elements[j]; - - double x1, y1, x2, y2; - d.vs->bounding_box(&x1, &y1, &x2, &y2); - - if (! is_set) - { - m_x1 = x1; - m_x2 = x2; - m_y1 = y1; - m_y2 = y2; - - is_set = true; - } - else if (x2 > m_x2 || x1 < m_x1 || y2 > m_y2 || y1 < m_y1) - { - m_x1 = min(x1, m_x1); - m_y1 = min(y1, m_y1); - m_x2 = max(x2, m_x2); - m_y2 = max(y2, m_y2); - } - } -} - -void -plot::trans_matrix_update() -{ - if (! m_bbox_updated) - { - double x1, y1, x2, y2; - bounding_box(&x1, &y1, &x2, &y2); - - double fx = x2 - x1, fy = y2 - y1; - m_trans.reset(); - m_trans.scale(1/fx, 1/fy); - m_trans.translate(-x1/fx, -y1/fy); - m_bbox_updated = true; - } -} - -void -plot::draw_elements(canvas &canvas) -{ - agg::trans_affine m = m_trans; - viewport_scale(m); - canvas.scale(m); - - for (unsigned j = 0; j < m_elements.size(); j++) - { - drawable& d = m_elements[j]; - vertex_source& vs = d.get_vertex_source(); - vs.apply_transform(m, 1.0); - canvas.draw(vs, d.color); - } -} - -void -plot::viewport_scale(agg::trans_affine& m) -{ - const double xoffs = 0.09375, yoffs = 0.09375; - static agg::trans_affine rsz(1-2*xoffs, 0.0, 0.0, 1-2*yoffs, xoffs, yoffs); - trans_affine_compose (m, rsz); -} |