1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
//
// Created by saintruler on 05.05.19.
//
#include "CalculateCanvas.h"
void calculate(unsigned char* canvas, int width, Point* points, int nPoints, int canvasX, int canvasY)
{
int pathX, pathY;
int length_squared;
double f = 0;
for (int i = 0; i < nPoints; i++)
{
pathX = points[i].x - canvasX;
pathY = points[i].y - canvasY;
length_squared = pathX * pathX + pathY * pathY;
f += (1e5 * 20) / (float) length_squared;
}
int l = (int) f;
if (l > 255) l = 255;
canvas[canvasY * width * 3 + canvasX * 3 + 0] = l;
canvas[canvasY * width * 3 + canvasX * 3 + 1] = 0;
canvas[canvasY * width * 3 + canvasX * 3 + 2] = 0;
}
//void calculate(unsigned char* canvas, int width, Point* points, int nPoints, int canvasX, int canvasY)
// point canvas_pt(canvasX, canvasY);
// double f = 0;
// for (point pt : points)
// {
// point path = pt - canvas_pt;
//
// f += (1e5 * 20 * 1) / path.length_sqared();
// }
//
// int l = (int) f;
// if (l > 255) l = 255;
//
//
// canvas[y * SCR_WIDTH * 3 + x * 3 + 0] = l;
// canvas[y * SCR_WIDTH * 3 + x * 3 + 1] = 0;
// canvas[y * SCR_WIDTH * 3 + x * 3 + 2] = 0;
//}
void generate_canvas(int width, int height, unsigned char* canvas, Point* points, int nPoints)
{
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
calculate(canvas, width, points, nPoints, x, y);
}
}
}
|
