Files
Arduino/UTFT_ESSAI_CUBE_5/UTFT_ESSAI_CUBE_5.ino
Jérôme Delacotte 7b30d6e298 first commit
2025-03-06 11:15:32 +01:00

217 lines
4.6 KiB
C++
Executable File

#include <UTFT.h>
UTFT myGLCD(ITDB32S,38,39,40,41);
#define MINPRESSURE 10
#define MAXPRESSURE 1000
// Assign human-readable names to some common 16-bit color values:
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
// Declare which fonts we will be using
extern uint8_t SmallFont[];
void setup() {
Serial.begin(9600);
// Setup the LCD
myGLCD.InitLCD();
myGLCD.setFont(SmallFont);
}
typedef struct
{
int x,y;
} point;
int key;
float a=0.0,b=0.0;
//float ax,ay,az;
short lx[8]={1,1,1,1,-1,-1,-1,-1};
short ly[8]={1,1,-1,-1,1,1,-1,-1};
short lz[8]={1,-1,1,-1,1,-1,1,-1};
float lxn[8],lyn[8],lzn[8];
float xd[8],yd[8];
float c=1.0;
float xt,yt,zt;
float mr[3][3];
float znm;
int face[6][4]={{4,0,1,5},{1,0,2,3},{5,1,3,7},{4,5,7,6},{0,4,6,2},{3,2,6,7}};
int facec[6]={10,20,30,20,30,10};
point points[10];
// Quick sort
int tri[12];
int zface[12];
void QuickSort(int deb, int fin)
{
int i=deb;
int j=fin;
double milieu=256*zface[tri[(deb+fin)/2]];
int temp;
while(i<=j)
{
while(256*zface[tri[i]]> milieu) i++;
while(256*zface[tri[j]]< milieu) j--;
if(i<=j)
{
temp=tri[i];
tri[i]=tri[j];
tri[j]=temp;
i++; j--;
}
}
if(i<fin) QuickSort(i,fin);
if(deb<j) QuickSort(deb,j);
// draw();
}
// ----------
//void loop(){
//
//
// // ALGO Adapté depuis http://josh83.pagesperso-orange.fr/demoz/3dengfr.htm
//
//
//
// // a point object holds x y and z coordinates
// TSPoint p = ts.getPoint();
//
// // we have some minimum pressure we consider 'valid'
// // pressure of 0 means no pressing!
// if (p.z > ts.pressureThreshhold) {
// Serial.print("X = "); Serial.print(p.x);
// Serial.print("\tY = "); Serial.print(p.y);
// Serial.print("\tPressure = "); Serial.print(p.z);
//
// a = 0.05; //p.x / 1024.0;
// b = 0.05; //p.y / 1024.0;
//
// Serial.print(" a = "); Serial.print(a);
// Serial.print("\tb = "); Serial.println(b);
//
// draw();
// }
//
//}
void loop() {
//delay(100);
//TSPoint p = ts.getPoint();
//
// we have some minimum pressure we consider 'valid'
// pressure of 0 means no pressing!
//if (p.z > ts.pressureThreshhold) {
a=a-0.05;
b=b+0.05;
for(int n=0;n<8;n++) {
lxn[n]=lx[n]*cos(b)+ly[n]*sin(a)*sin(b)+lz[n]*cos(a)*sin(b);
lyn[n]=ly[n]*cos(a)-lz[n]*sin(a);
lzn[n]=-lx[n]*sin(b)+ly[n]*sin(a)*cos(b)+lz[n]*cos(a)*cos(b)+5;
xd[n]=(320/2)+(320*lxn[n]*c)/(2*lzn[n]);
yd[n]=(240/2)+(240*lyn[n]*c)/(2*lzn[n]);
}
int facev=0;
for(int m=0;m<6;m++) {
znm=(xd[face[m][2]]-xd[face[m][1]])*(yd[face[m][1]]-yd[face[m][3]])-(yd[face[m][2]]-yd[face[m][1]])*(xd[face[m][1]]-xd[face[m][3]]);
//znm=2; only zsorting
if(znm>0) {
zface[m]=lzn[face[m][0]]+lzn[face[m][1]]+lzn[face[m][2]]+lzn[face[m][3]]+lzn[face[m][4]];
tri[facev]=m;
facev++;
}
}
QuickSort(0,facev-1);
myGLCD.clrScr();
//tft.fillScreen(BLACK);
//for(int mb=0;mb<6;mb++) {
for(int mb=0;mb<facev;mb++) {
int color = WHITE;
switch (tri[mb]) {
case 0:
color = WHITE;
break;
case 1:
color = RED;
break;
case 2:
color = BLUE;
break;
case 3:
color = YELLOW;
break;
case 4:
color = GREEN;
break;
case 5:
color = CYAN;
break;
default:
break;
}
points[0].x = xd[face[tri[mb]][0]];
points[0].y = yd[face[tri[mb]][0]];
points[1].x = xd[face[tri[mb]][1]];
points[1].y = yd[face[tri[mb]][1]];
points[2].x = xd[face[tri[mb]][2]];
points[2].y = yd[face[tri[mb]][2]];
points[3].x = xd[face[tri[mb]][3]];
points[3].y = yd[face[tri[mb]][3]];
// FACE 1
myGLCD.setColor(color);
myGLCD.drawLine(
points[0].x, points[0].y,
points[1].x, points[1].y);
myGLCD.drawLine(
points[1].x, points[1].y,
points[2].x, points[2].y);
myGLCD.drawLine(
points[2].x, points[2].y,
points[3].x, points[3].y);
myGLCD.drawLine(
points[3].x, points[3].y,
points[0].x, points[0].y);
//delay(500);
//myGLCD.fillTriangle(points[1].x,points[1].y,points[2].x,points[2].y,points[3].x,points[3].y,WHITE);
// myGLCD.fillTriangle(xd[3],yd[3],xd[4],yd[4],xd[1],yd[1], WHITE);
//FillPoly(points,4,facec[mb]);
}
// }
}