How to draw in xtd?

[ghost]

For example, I want to plot the sine wave. Please give me complete sample code. Thank you.

[gammasoft71]

The following example shows how to draw a sine wave on a form.

#include <xtd/drawing/pen>
#include <xtd/forms/application>

using namespace xtd;
using namespace xtd::drawing;
using namespace xtd::forms;

auto main()->int {
  const auto sins = std::vector<point> {{10, 110}, {20, 148}, {30, 181}, {40, 202}, {50, 210}, {60, 202}, {70, 181}, {80, 148}, {90, 110}, {100, 72}, {110, 39}, {120, 18}, {130, 10}, {140, 18}, {150, 39}, {160, 72}, {170, 110}, {180, 148}, {190, 181}, {200, 202}, {210, 210}, {220, 202}, {230, 181}, {240, 148}, {250, 110}, {260, 72}, {270, 39}, {280, 18}, {290, 10}, {300, 18}, {310, 39}, {320, 72}};
  auto form1 = form::create("Sine wave");
  form1.client_size({330, 220});
  form1.paint += [&](object& sender, paint_event_args& e) {
    e.graphics().draw_curve(pen(color::dodger_blue, 4), sins);
  };
  xtd::forms::application::run(form1);
}

• You can see How to draw something on control? which shows different ways of drawing with xtd.
• See form_paint for an example of how to use other methods in the xtd::drawing::graphics class.

[ghost]

• You can see How to draw something on control? which shows different ways of drawing with xtd.

Page Not Found my friend.

[ghost]

The following example shows how to draw a sine wave on a form.

#include <xtd/drawing/pen>
#include <xtd/forms/application>

using namespace xtd;
using namespace xtd::drawing;
using namespace xtd::forms;

auto main()->int {
  const auto sins = std::vector<point> {{10, 110}, {20, 148}, {30, 181}, {40, 202}, {50, 210}, {60, 202}, {70, 181}, {80, 148}, {90, 110}, {100, 72}, {110, 39}, {120, 18}, {130, 10}, {140, 18}, {150, 39}, {160, 72}, {170, 110}, {180, 148}, {190, 181}, {200, 202}, {210, 210}, {220, 202}, {230, 181}, {240, 148}, {250, 110}, {260, 72}, {270, 39}, {280, 18}, {290, 10}, {300, 18}, {310, 39}, {320, 72}};
  auto form1 = form::create("Sine wave");
  form1.client_size({330, 220});
  form1.paint += [&](object& sender, paint_event_args& e) {
    e.graphics().draw_curve(pen(color::dodger_blue, 4), sins);
  };
  xtd::forms::application::run(form1);
}

This is using a fixed set of points. What about using the sine function itself?

[gammasoft71]

The xtd::drawing::graphics class doesn't contain any sinusoidal functions per se. The xtd::drawing::graphics::draw_curve method is used to draw a curve. Just as the xtd::math::sin function is only used to calculate a sine. If you want a method that generates and draws, you've got all the tools you need :-).

Just for information, xtd doesn't yet have charts.

PS : Link fixed

You can see How to draw something on control? which shows different ways of drawing with xtd.