a simple plotter for morden C++.

more shots in screenshots.

This is a very simple plotter module, providing a drawing interface and a low-level rendering interface. It can be easily ported to various UI platforms by implement the render API.

irender.h  an An abstract API of render,please implement a render.
isploter.h  the abstract interface of sploter
sploter_data.h the interface of curves data.

1. implement the irender API

!! Note !!

• render origin should be left-top
• render x increase from left to right
• render y increase from top to bottom

2. init std::unique_ptr<isploter> plot_ with a sploter_factory::create() pointer instance.
3. call plot_->draw(render_->init(&ctx)); in the UI draw(ctx) function.
4. call handle_events and mouse_click.
5. run and show the UI!

  bool eplot::cursor(context const &ctx, point p, cursor_tracking status)
  {
   return  plot_->handle_events(render_->init(&ctx), p.x, p.y, static_cast<isploter::cursor_tracking>(status));
  }

  bool eplot::click(const context &ctx, mouse_button btn)
  {
    tracker<>::click(ctx, btn);
    return plot_->mouse_click(
        render_->init(&ctx), btn.pos.x, btn.pos.y, btn.down, static_cast<isploter::mouse_key>(btn.state));
  }

add link to splot library in cmake

target_link_libraries(splot_example splot::splot)

more see the examples

tree view
cpp
|_ splot 
    |_...(this project folder)
|_ elements
|_ fltk-1.4.x
|_ nanogui 

There are some examples:

• elements based on elements-ui ,smooth and interactivaty
• fltk based on fltk-1.4.x(cmake support), no alpha channel for colors, delays event with doubled buffer.
• nanogui based on nanogui(mitsuba-renderer branch)

There's an example for elements UI. Please check the SPLOT_BUILD_EXAMPLES option to be ON (default is ON).

1. first download elements somewhere.

   git clone https://github.com/cycfi/elements 

2. set the ELEMENTS_ROOT value to the path elements. It's set to examples/CMakeLists.txt

set(ELEMENTS_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/../../elements")

3. build with cmake

• x,y axes grid may NOT divided by 10, it's intend to auto fix the data ranges. Also try to make Zero(original XY) on the grid.
• axes may adjust to the data ranges

• optimize axes grid division
• port to FLTK
• port to nanogui
• make grid/legand/markers interactions available on screen