pixled/signal/sine.cpp

Demonstrates the pixled::signal::Sine usage.

sine_t.gif	sine_x.gif	sine_x_t.gif	sine_radial_t.gif

#include "pixled.h"
#include "pixled/gif_output.h"
 
using namespace pixled;
 
int main(int argc, char** argv) {
    pixled::LedPanel panel(16, 16, pixled::LEFT_RIGHT_RIGHT_LEFT_FROM_BOTTOM);
    pixled::GifOutput out(256, pixled::FIT_WIDTH, 20, panel);
 
    // Time dependent wave
    {
        auto animation = pixled::hsb(
                // Rainbow hue
                pixled::Rainbow(20),
                // Max saturation
                1.0,
                // Saturation = Time dependent sine wave with a period of 10
                0.5f * (1.f + pixled::Sine(pixled::Cast<float>(pixled::T()) / 10.f))
                );
        pixled::Runtime runtime(panel, out, animation);
 
        // Writes 20 frames to gif file
        out.write(runtime, 20, "sine_t.gif");
    }
 
    // Space dependent wave
    {
        auto animation = pixled::hsb(
                // Rainbow hue
                pixled::Rainbow(20),
                // Max saturation
                1.0,
                // Saturation = Space dependent sine wave of period 8
                0.5f * (1.f + pixled::Sine(pixled::X() / 8.f))
                );
        pixled::Runtime runtime(panel, out, animation);
 
        // Writes 20 frames to gif file
        out.write(runtime, 20, "sine_x.gif");
    }
 
    // Linear progressive wave
    {
        auto animation = pixled::hsb(
                // Rainbow hue
                pixled::Rainbow(20),
                // Max saturation
                1.0,
                // Saturation = Progressive sine wave of period 8
                0.5f * (1.f + pixled::Sine(
                        pixled::X() / 8.f - pixled::T() / 10.f
                        ))
                );
        pixled::Runtime runtime(panel, out, animation);
 
        // Writes 20 frames to gif file
        out.write(runtime, 20, "sine_x_t.gif");
    }
 
    // Radial progressive wave
    {
        auto animation = pixled::hsb(
                // Rainbow hue
                pixled::Rainbow(20),
                // Max saturation
                1.0,
                // Saturation = Radial progressive sine wave
                0.5f * (1.f + pixled::Sine(
                        pixled::Distance(
                            pixled::Point(pixled::X(), pixled::Y()), point(8, 8)
                            ) / 8.f
                        - pixled::T() / 10.f
                        ))
                );
        pixled::Runtime runtime(panel, out, animation);
 
        // Writes 20 frames to gif file
        out.write(runtime, 20, "sine_radial_t.gif");
    }
}