public override void on_draw() { pixfmt_alpha_blend_rgb pf = new pixfmt_alpha_blend_rgb(rbuf_window(), new blender_bgr()); renderer_base ren_base = new renderer_base(pf); ren_base.clear(new rgba(1.0, 1.0, 0.95)); renderer_scanline_aa_solid ren = new renderer_scanline_aa_solid(ren_base); rasterizer_scanline_aa ras = new rasterizer_scanline_aa(); scanline_unpacked_8 sl = new scanline_unpacked_8(); path_storage path = new path_storage(new vertex_block_storage()); double x, y; double curve_time = 0; path.remove_all(); curve4 curve; curve.approximation_method(curve_approximation_method_e(m_curve_type.cur_item())); curve.approximation_scale(m_approximation_scale.value()); curve.angle_tolerance(deg2rad(m_angle_tolerance.value())); curve.cusp_limit(deg2rad(m_cusp_limit.value())); curve_time = measure_time(curve); double max_angle_error_01 = 0; double max_angle_error_1 = 0; double max_angle_error1 = 0; double max_angle_error_10 = 0; double max_angle_error_100 = 0; double max_error_01 = 0; double max_error_1 = 0; double max_error1 = 0; double max_error_10 = 0; double max_error_100 = 0; max_error_01 = calc_max_error(curve, 0.01, &max_angle_error_01); max_error_1 = calc_max_error(curve, 0.1, &max_angle_error_1); max_error1 = calc_max_error(curve, 1, &max_angle_error1); max_error_10 = calc_max_error(curve, 10, &max_angle_error_10); max_error_100 = calc_max_error(curve, 100, &max_angle_error_100); curve.approximation_scale(m_approximation_scale.value()); curve.angle_tolerance(deg2rad(m_angle_tolerance.value())); curve.cusp_limit(deg2rad(m_cusp_limit.value())); curve.init(m_curve1.x1(), m_curve1.y1(), m_curve1.x2(), m_curve1.y2(), m_curve1.x3(), m_curve1.y3(), m_curve1.x4(), m_curve1.y4()); path.concat_path(curve); //path.move_to(m_curve1.x1(), m_curve1.y1()); //path.line_to(m_curve1.x2(), m_curve1.y2()); //path.line_to(m_curve1.x3(), m_curve1.y3()); //path.line_to(m_curve1.x4(), m_curve1.y4()); conv_stroke stroke = new conv_stroke(path); stroke.width(m_width.value()); stroke.line_join(line_join_e(m_line_join.cur_item())); stroke.line_cap(line_cap_e(m_line_cap.cur_item())); stroke.inner_join(inner_join_e(m_inner_join.cur_item())); stroke.inner_miter_limit(1.01); ras.add_path(stroke); ren.color(rgba(0, 0.5, 0, 0.5)); render_scanlines(ras, sl, ren); uint cmd; uint num_points1 = 0; path.rewind(0); while (!is_stop(cmd = path.vertex(&x, &y))) { if (m_show_points.status()) { Shape.Ellipse ell = new agg.Shape.Ellipse(x, y, 1.5, 1.5, 8); ras.add_path(ell); ren.color(rgba(0, 0, 0, 0.5)); render_scanlines(ras, sl, ren); } ++num_points1; } if (m_show_outline.status()) { // Draw a stroke of the stroke to see the internals //-------------- conv_stroke stroke2 = new conv_stroke(stroke); ras.add_path(stroke2); ren.color(rgba(0, 0, 0, 0.5)); render_scanlines(ras, sl, ren); } // Check ellipse and arc for the number of points //--------------- //ellipse a(100, 100, m_width.value(), m_width.value(), 0); //ras.add_path(a); //ren.color(rgba(0.5,0,0, 0.5)); //render_scanlines(ras, sl, ren); //a.rewind(0); //while(!is_stop(cmd = a.vertex(&x, &y))) //{ // if(is_vertex(cmd)) // { // ellipse ell(x, y, 1.5, 1.5, 8); // ras.add_path(ell); // ren.color(rgba(0,0,0,0.5)); // render_scanlines(ras, sl, ren); // } //} // Check a circle with huge radius (10,000,000) and high approximation accuracy //--------------- //double circle_pnt_count = 0; //bezier_arc ell(0,0, 10000000, 10000000, 0, 2*pi); //conv_curve<bezier_arc, curve3_div, curve4_div3> crv(ell); //crv.approximation_scale(10.0); //crv.rewind(0); //while(crv.vertex(&x, &y)) ++circle_pnt_count; string buf; gsv_text t; t.size(8.0); conv_stroke pt = new conv_stroke(t); pt.line_cap(round_cap); pt.line_join(round_join); pt.width(1.5); /* * sprintf(buf, "Num Points=%d Time=%.2fmks\n\n" * " Dist Error: x0.01=%.5f x0.1=%.5f x1=%.5f x10=%.5f x100=%.5f\n\n" * "Angle Error: x0.01=%.1f x0.1=%.1f x1=%.1f x10=%.1f x100=%.1f", * num_points1, curve_time, * max_error_01, * max_error_1, * max_error1, * max_error_10, * max_error_100, * max_angle_error_01, * max_angle_error_1, * max_angle_error1, * max_angle_error_10, * max_angle_error_100); */ t.start_point(10.0, 85.0); t.text(buf); ras.add_path(pt); ren.color(rgba(0, 0, 0)); render_scanlines(ras, sl, ren); render_ctrl(ras, sl, ren_base, m_curve1); render_ctrl(ras, sl, ren_base, m_angle_tolerance); render_ctrl(ras, sl, ren_base, m_approximation_scale); render_ctrl(ras, sl, ren_base, m_cusp_limit); render_ctrl(ras, sl, ren_base, m_width); render_ctrl(ras, sl, ren_base, m_show_points); render_ctrl(ras, sl, ren_base, m_show_outline); render_ctrl(ras, sl, ren_base, m_curve_type); render_ctrl(ras, sl, ren_base, m_case_type); render_ctrl(ras, sl, ren_base, m_inner_join); render_ctrl(ras, sl, ren_base, m_line_join); render_ctrl(ras, sl, ren_base, m_line_cap); }
public override void on_draw() { pixfmt_alpha_blend_rgb pf = new pixfmt_alpha_blend_rgb(rbuf_window(), new blender_bgr()); renderer_base ren_base = new renderer_base(pf); ren_base.clear(new rgba(1.0, 1.0, 0.95)); renderer_scanline_aa_solid ren = new renderer_scanline_aa_solid(ren_base); rasterizer_scanline_aa ras = new rasterizer_scanline_aa(); scanline_unpacked_8 sl = new scanline_unpacked_8(); path_storage path = new path_storage(new vertex_block_storage()); double x, y; double curve_time = 0; path.remove_all(); curve4 curve; curve.approximation_method(curve_approximation_method_e(m_curve_type.cur_item())); curve.approximation_scale(m_approximation_scale.value()); curve.angle_tolerance(deg2rad(m_angle_tolerance.value())); curve.cusp_limit(deg2rad(m_cusp_limit.value())); curve_time = measure_time(curve); double max_angle_error_01 = 0; double max_angle_error_1 = 0; double max_angle_error1 = 0; double max_angle_error_10 = 0; double max_angle_error_100 = 0; double max_error_01 = 0; double max_error_1 = 0; double max_error1 = 0; double max_error_10 = 0; double max_error_100 = 0; max_error_01 = calc_max_error(curve, 0.01, &max_angle_error_01); max_error_1 = calc_max_error(curve, 0.1, &max_angle_error_1); max_error1 = calc_max_error(curve, 1, &max_angle_error1); max_error_10 = calc_max_error(curve, 10, &max_angle_error_10); max_error_100 = calc_max_error(curve, 100, &max_angle_error_100); curve.approximation_scale(m_approximation_scale.value()); curve.angle_tolerance(deg2rad(m_angle_tolerance.value())); curve.cusp_limit(deg2rad(m_cusp_limit.value())); curve.init(m_curve1.x1(), m_curve1.y1(), m_curve1.x2(), m_curve1.y2(), m_curve1.x3(), m_curve1.y3(), m_curve1.x4(), m_curve1.y4()); path.concat_path(curve); //path.move_to(m_curve1.x1(), m_curve1.y1()); //path.line_to(m_curve1.x2(), m_curve1.y2()); //path.line_to(m_curve1.x3(), m_curve1.y3()); //path.line_to(m_curve1.x4(), m_curve1.y4()); conv_stroke stroke = new conv_stroke(path); stroke.width(m_width.value()); stroke.line_join(line_join_e(m_line_join.cur_item())); stroke.line_cap(line_cap_e(m_line_cap.cur_item())); stroke.inner_join(inner_join_e(m_inner_join.cur_item())); stroke.inner_miter_limit(1.01); ras.add_path(stroke); ren.color(rgba(0, 0.5, 0, 0.5)); render_scanlines(ras, sl, ren); uint cmd; uint num_points1 = 0; path.rewind(0); while(!is_stop(cmd = path.vertex(&x, &y))) { if(m_show_points.status()) { Shape.Ellipse ell = new agg.Shape.Ellipse(x, y, 1.5, 1.5, 8); ras.add_path(ell); ren.color(rgba(0,0,0, 0.5)); render_scanlines(ras, sl, ren); } ++num_points1; } if(m_show_outline.status()) { // Draw a stroke of the stroke to see the internals //-------------- conv_stroke stroke2 = new conv_stroke(stroke); ras.add_path(stroke2); ren.color(rgba(0,0,0, 0.5)); render_scanlines(ras, sl, ren); } // Check ellipse and arc for the number of points //--------------- //ellipse a(100, 100, m_width.value(), m_width.value(), 0); //ras.add_path(a); //ren.color(rgba(0.5,0,0, 0.5)); //render_scanlines(ras, sl, ren); //a.rewind(0); //while(!is_stop(cmd = a.vertex(&x, &y))) //{ // if(is_vertex(cmd)) // { // ellipse ell(x, y, 1.5, 1.5, 8); // ras.add_path(ell); // ren.color(rgba(0,0,0,0.5)); // render_scanlines(ras, sl, ren); // } //} // Check a circle with huge radius (10,000,000) and high approximation accuracy //--------------- //double circle_pnt_count = 0; //bezier_arc ell(0,0, 10000000, 10000000, 0, 2*pi); //conv_curve<bezier_arc, curve3_div, curve4_div3> crv(ell); //crv.approximation_scale(10.0); //crv.rewind(0); //while(crv.vertex(&x, &y)) ++circle_pnt_count; string buf; gsv_text t; t.size(8.0); conv_stroke pt = new conv_stroke(t); pt.line_cap(round_cap); pt.line_join(round_join); pt.width(1.5); /* sprintf(buf, "Num Points=%d Time=%.2fmks\n\n" " Dist Error: x0.01=%.5f x0.1=%.5f x1=%.5f x10=%.5f x100=%.5f\n\n" "Angle Error: x0.01=%.1f x0.1=%.1f x1=%.1f x10=%.1f x100=%.1f", num_points1, curve_time, max_error_01, max_error_1, max_error1, max_error_10, max_error_100, max_angle_error_01, max_angle_error_1, max_angle_error1, max_angle_error_10, max_angle_error_100); */ t.start_point(10.0, 85.0); t.text(buf); ras.add_path(pt); ren.color(rgba(0,0,0)); render_scanlines(ras, sl, ren); render_ctrl(ras, sl, ren_base, m_curve1); render_ctrl(ras, sl, ren_base, m_angle_tolerance); render_ctrl(ras, sl, ren_base, m_approximation_scale); render_ctrl(ras, sl, ren_base, m_cusp_limit); render_ctrl(ras, sl, ren_base, m_width); render_ctrl(ras, sl, ren_base, m_show_points); render_ctrl(ras, sl, ren_base, m_show_outline); render_ctrl(ras, sl, ren_base, m_curve_type); render_ctrl(ras, sl, ren_base, m_case_type); render_ctrl(ras, sl, ren_base, m_inner_join); render_ctrl(ras, sl, ren_base, m_line_join); render_ctrl(ras, sl, ren_base, m_line_cap); }