void plot_to_row( //draw a row TO_ROW *row, //row to draw ScrollView::Color colour, //colour to draw in FCOORD rotation //rotation for line ) { FCOORD plot_pt; //point to plot //blobs BLOBNBOX_IT it = row->blob_list(); float left, right; //end of row if (it.empty()) { tprintf("No blobs in row at %g\n", row->parallel_c()); return; } left = it.data()->bounding_box().left(); it.move_to_last(); right = it.data()->bounding_box().right(); plot_blob_list(to_win, row->blob_list(), colour, ScrollView::BROWN); to_win->Pen(colour); plot_pt = FCOORD(left, row->line_m() * left + row->line_c()); plot_pt.rotate(rotation); to_win->SetCursor(plot_pt.x(), plot_pt.y()); plot_pt = FCOORD(right, row->line_m() * right + row->line_c()); plot_pt.rotate(rotation); to_win->DrawTo(plot_pt.x(), plot_pt.y()); }
void TO_ROW::insert_blob( //constructor BLOBNBOX *blob //first blob ) { BLOBNBOX_IT it = &blobs; //list of blobs if (it.empty ()) it.add_before_then_move (blob); else { it.mark_cycle_pt (); while (!it.cycled_list () && it.data ()->bounding_box ().left () <= blob->bounding_box ().left ()) it.forward (); if (it.cycled_list ()) it.add_to_end (blob); else it.add_before_stay_put (blob); } }