Разное о выращивании табака на Алтае
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#include <stdio.h>
#include "fabgl.h"
fabgl::VGAController DisplayController;
fabgl::Canvas canvas(&DisplayController);
void setup()
{
Serial.begin(115200);
DisplayController.begin();
DisplayController.setResolution(VGA_640x480_60Hz) ;
canvas.setGlyphOptions(GlyphOptions().FillBackground(false).DoubleWidth(2));
canvas.clear();
}
int changed;
double scale = 1./128;
double cx = -.6, cy = 0;
void mandel(int skip) {
int width = 900;
int height = 600;
int iter, max_iter = 256;
double x, y, zx, zy, zx2, zy2;
for (int i = 0; i < height; i += skip) {
y = (i - height/2) * scale + cy;
for (int j = 0; j < width; j += skip) {
x = (j - width/2) * scale + cx;
zx = hypot(x - (double).25, y);
if (x < zx - 2 * zx * zx + (double).25) continue;
if ((x + 1)*(x + 1) + y * y < 1/16) continue;
zx = zy = zx2 = zy2 = 0;
for (iter = 0; iter < max_iter && zx2 + zy2 < 4; iter++) {
zy = 2 * zx * zy + y;
zx = zx2 - zy2 + x;
zx2 = zx * zx;
zy2 = zy * zy;
}
if (iter < max_iter) {
canvas.setPixel(j-150,i-90,RGB888(5,iter*295,5));
if (skip < 2) { int16_t tx, ty;
}
}
}
}
}
void loop()
{
static int resolution=5;
if (resolution) mandel(resolution--);
Serial.println(resolution);
if (resolution==0) ;
}
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