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Jérôme Delacotte
2025-03-06 11:15:32 +01:00
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TFT_ESSAI_CUBE_4/TFT_ESSAI_CUBE_4.ino Executable file
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//Analog Clock Sketch created by Embedded Downloads LTD
//To view the full tutorial go to www.embeddeddownloads.com
#include <Adafruit_GFX_AS.h> // Core graphics library
#include <Adafruit_ILI9341_8bit_AS.h>// Hardware-specific library
#include <TouchScreen.h>
// The control pins for the LCD can be assigned to any digital or
// analog pins...but we'll use the analog pins as this allows us to
// double up the pins with the touch screen (see the tft paint example).
#define LCD_CS A3 // Chip Select goes to Analog 3
#define LCD_CD A2 // Command/Data goes to Analog 2
#define LCD_WR A1 // LCD Write goes to Analog 1
#define LCD_RD A0 // LCD Read goes to Analog 0
#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin
// When using the BREAKOUT BOARD only, use these 8 data lines to the LCD:
// For the Arduino Uno, Duemilanove, Diecimila, etc.:
// D0 connects to digital pin 8 (Notice these are
// D1 connects to digital pin 9 NOT in order!)
// D2 connects to digital pin 2
// D3 connects to digital pin 3
// D4 connects to digital pin 4
// D5 connects to digital pin 5
// D6 connects to digital pin 6
// D7 connects to digital pin 7
// For the Arduino Mega, use digital pins 22 through 29
// (on the 2-row header at the end of the board).
// These are the pins for the shield!
#define YP A1 // must be an analog pin, use "An" notation!
#define XM A2 // must be an analog pin, use "An" notation!
#define YM 7 // can be a digital pin
#define XP 6 // can be a digital pin
#define MINPRESSURE 10
#define MAXPRESSURE 1000
// For better pressure precision, we need to know the resistance
// between X+ and X- Use any multimeter to read it
// For the one we're using, its 300 ohms across the X plate
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
// 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
Adafruit_ILI9341_8bit_AS tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
void setup() {
Serial.begin(9600);
tft.reset();
delay(10);
tft.begin(0x9341);
uint16_t identifier = tft.readID();
Serial.println(identifier, HEX);
tft.fillScreen(BLACK);
Serial.println("tft LCD test");
Serial.print("tft size is ");
Serial.print(tft.width());
Serial.print("x");
Serial.println(tft.height());
}
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=2.0;
int ti=1;
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);
}
// ----------
void loop(){
ti++;
// ALGO Adapté depuis http://josh83.pagesperso-orange.fr/demoz/3dengfr.htm
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]=(240/2)+(240*lxn[n]*c)/(2*lzn[n]);
yd[n]=(320/2)+(320*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);
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
tft.fillTriangle(
points[0].x, points[0].y,
points[1].x, points[1].y,
points[2].x, points[2].y,
color);
tft.fillTriangle(
points[0].x, points[0].y,
points[2].x, points[2].y,
points[3].x, points[3].y,
color);
//delay(500);
//tft.fillTriangle(points[1].x,points[1].y,points[2].x,points[2].y,points[3].x,points[3].y,WHITE);
// tft.fillTriangle(xd[3],yd[3],xd[4],yd[4],xd[1],yd[1], WHITE);
//FillPoly(points,4,facec[mb]);
}
}