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);
}
