1. 先到 leapmotion.com/setup 下載軟體並安裝,然後Processing下載 LeapMotion for Processing的library。
2. 老師教如何利用2手,來做互動的調色盤。
3. 如何將雙手已 3D 的方式呈現。
4. 期中作品題目:賽車遊戲(和何永育)。
一開始複習上周的 2D 程式碼:
import de.voidplus.leapmotion.*;//LeapMotion標頭檔
LeapMotion leap;
PVector [][] pt = new PVector[5][50];
//PVector pt1,pt2,pt3,pt4,pt5,pt6,pt7,pt8,pt9,pt10;
void setup(){
size(640,480,P3D);
colorMode(HSB, 100);
for(int f=0;f<5;f++)
for(int i=0;i<50;i++)
pt[f][i] = new PVector(0,0,0);
leap = new LeapMotion(this);//LeapMotion起始值
}
void draw(){
background(0);
//stroke(48,191,153);
stroke(#30BF99);
for(int f=0;f<5;f++)
for(int i=49;i>0;i--){pt[f][i].x=pt[f][i-1].x;pt[f][i].y=pt[f][i-1].y;}
for(Hand hand : leap.getHands()){//抓取手
for(Finger finger : hand.getFingers()){//抓取手指
int f=finger.getType();
PVector now = finger.getPosition();
pt[f][0].x = now.x;
pt[f][0].y = now.y;
}
}
for(int f=0;f<5;f++){
stroke(f*20, 100,100);
for(int i=1;i<10;i++)
line(pt[f][i].x,pt[f][i].y,pt[f][i].z,pt[f][i-1].x,pt[f][i-1].y,pt[f][i-1].z);
}
}
接著:
import de.voidplus.leapmotion.*;//LeapMotion標頭檔
LeapMotion leap;
PVector [][] pt = new PVector[5][50];
void setup(){
size(640,480,P3D);
colorMode(HSB, 100);
for(int f=0;f<5;f++)
for(int i=0;i<50;i++)
pt[f][i] = new PVector(0,0,0);
leap = new LeapMotion(this);//LeapMotion起始值
}
void draw(){
background(0);
stroke(#30BF99);
for(int f=0;f<5;f++)
for(int i=49;i>0;i--){pt[f][i].x=pt[f][i-1].x;pt[f][i].y=pt[f][i-1].y;pt[f][i].z=pt[f][i-1].z;}
for(Hand hand : leap.getHands()){//抓取手
for(Finger finger : hand.getFingers()){//抓取手指
int f=finger.getType();
PVector now = finger.getPosition();
pt[f][0].x = now.x;
pt[f][0].y = now.y;
if(f==1) println(now);
}
}
translate(width/2, height/2);
rotateY(radians(frameCount));
translate(-width/2, -height/2);
for(int f=0;f<5;f++){
stroke(f*20, 100,100);
for(int i=1;i<10;i++)
line(pt[f][i].x,pt[f][i].y,pt[f][i].z,pt[f][i-1].x,pt[f][i-1].y,pt[f][i-1].z);
}
}
3D會動的程式:
import de.voidplus.leapmotion.*;//LeapMotion標頭檔
LeapMotion leap;
PVector [][] pt = new PVector[5][50];
void setup(){
size(640,480,P3D);
colorMode(HSB, 100);
for(int f=0;f<5;f++)
for(int i=0;i<50;i++)
pt[f][i] = new PVector(0,0,0);
leap = new LeapMotion(this);//LeapMotion起始值
}
void draw(){
background(0);
stroke(#30BF99);
for(int f=0;f<5;f++)
for(int i=49;i>0;i--){pt[f][i].x=pt[f][i-1].x;pt[f][i].y=pt[f][i-1].y;pt[f][i].z=pt[f][i-1].z;}
for(Hand hand : leap.getHands()){//抓取手
for(Finger finger : hand.getFingers()){//抓取手指
int f=finger.getType();
PVector now = finger.getPosition();
pt[f][0].x = now.x;
pt[f][0].y = now.y;
pt[f][0].z = now.z*2-90;
if(f==1) println(now);
}
}
translate(width/2, height/2, 0);
rotateY(radians(frameCount/4.0));
translate(-width/2, -height/2, 0);
for(int f=0;f<5;f++){
for(int i=1;i<50;i++){
stroke(f*20, 100,100);
line(pt[f][i].x,pt[f][i].y,pt[f][i].z,pt[f][i-1].x,pt[f][i-1].y,pt[f][i-1].z);
}
}
stroke(60, 100,100);
for(int i=0;i<640;i+=20)
for(int j=0;j<480;j+=20){
noFill(); rect(i,j, 20,20);
}
}

再來,左手橢圓,右手長方形:
import de.voidplus.leapmotion.*;//LeapMotion標頭檔
LeapMotion leap;
void setup(){
size(640,480,P3D);
leap = new LeapMotion(this);//LeapMotion起始值
}
void draw(){
background(255);
for(Hand hand : leap.getHands()){//抓取手
PVector pos = hand.getPosition();
if( hand.isLeft() ){
ellipse(pos.x, pos.y, 200,100);
}
else if( hand.isRight() ){
rect(pos.x, pos.y, 10,100);
}
}
}

import de.voidplus.leapmotion.*;//LeapMotion標頭檔
LeapMotion leap;
void setup(){
size(640,480,P3D);
leap = new LeapMotion(this);//LeapMotion起始值
}
color nowColor = color(255,0,0);
PVector leftPos;
void draw(){
background(255);
for(Hand hand : leap.getHands()){//抓取手
PVector pos = hand.getPosition();
if( hand.isLeft() ){
noFill(); ellipse(pos.x, pos.y, 200,100);
fill(255,0,0); ellipse(pos.x+150, pos.y, 60,50);
fill(255,255,0); ellipse(pos.x+120, pos.y-40, 60,50);
fill(0,255,0); ellipse(pos.x+90, pos.y-60, 60,50);
fill(0,0,255); ellipse(pos.x+30, pos.y-60, 60,50);
fill(255,0,255); ellipse(pos.x-20, pos.y-60, 60,50);
leftPos = pos;
}
else if( hand.isRight() ){
fill(nowColor); rect(pos.x, pos.y, 10,100);
println(leftPos);
println(pos);
if(dist(pos.x, pos.y, leftPos.x+120, leftPos.y-40) <30){
nowColor = color(255,255,0);
}
}
}
}

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