1117 許君平上課筆記

11/17
1.簡單複習上週 leapmotion接金幣
2.陣列.存檔.成績排名 sort 計算
3.用陣列做 ”3D畫畫過程重播“示範

*滑鼠畫畫

*加上背景 筆畫大小 顏色

*利用leap motion用手來畫畫

*陣列(五隻手指頭都能畫畫)

import de.voidplus.leapmotion.*;
LeapMotion leap;
PVector pt;
ArrayList<PVector> history;
ArrayList<PVector> history2;
ArrayList<PVector> history3;
ArrayList<PVector> history4;
ArrayList<PVector> history5;
void setup(){
size(600,400,P3D);
leap=new LeapMotion(this);
pt=new PVector(width/2, height/2);
history=new ArrayList<PVector>(0);
history2=new ArrayList<PVector>(0);
history3=new ArrayList<PVector>(0);
history4=new ArrayList<PVector>(0);
history5=new ArrayList<PVector>(0);
}
void draw(){
background(255);
fill(255,0,0); noStroke();
for(PVector nowPt : history){
ellipse(nowPt.x, nowPt.y, 10,10);
}
for(PVector nowPt : history2){
ellipse(nowPt.x, nowPt.y, 10,10);
}
for(PVector nowPt : history3){
ellipse(nowPt.x, nowPt.y, 10,10);
}
for(PVector nowPt : history4){
ellipse(nowPt.x, nowPt.y, 10,10);
}
for(PVector nowPt : history5){
ellipse(nowPt.x, nowPt.y, 10,10);
}
for( Hand hand : leap.getHands() ){
hand.draw();
Finger finger = hand.getThumb();
Finger finger2 = hand.getIndexFinger();
Finger finger3 = hand.getMiddleFinger();
Finger finger4 = hand.getRingFinger();
Finger finger5 = hand.getPinkyFinger();
PVector pos;
pos= finger.getPosition();
history.add(new PVector(pos.x,pos.y));
pos = finger2.getPosition();
history2.add(new PVector(pos.x,pos.y));
pos = finger3.getPosition();
history3.add(new PVector(pos.x,pos.y));
pos = finger4.getPosition();
history4.add(new PVector(pos.x,pos.y));
pos = finger5.getPosition();
history5.add(new PVector(pos.x,pos.y));
}
}
//void mouseMoved(){
// history.add(new PVector(mouseX, mouseY));
//}

*用陣列做 ”3D畫畫過程重播“示範

import de.voidplus.leapmotion.*;
LeapMotion leap;
PVector pt;
ArrayList<PVector> history;
ArrayList<PVector> history2;
ArrayList<PVector> history3;
ArrayList<PVector> history4;
ArrayList<PVector> history5;
void setup(){
size(640,480,P3D);//Need P3D 3D function (ball, translate, rotate, pushMatrix,popMatrix)
leap=new LeapMotion(this);
pt=new PVector(width/2, height/2);
history=new ArrayList<PVector>(0);
history2=new ArrayList<PVector>(0);
history3=new ArrayList<PVector>(0);
history4=new ArrayList<PVector>(0);
history5=new ArrayList<PVector>(0);
}
void myBall(float x, float y, float z){
pushMatrix();//backup translate/rotate matrix
translate(x,y,z*10);// z need to be x10
sphere(10);
popMatrix();//restore the translate/rotate matrix
}
void draw(){
background(255);
lights();// lighs will let 3D ball to look like 3D
translate(width/2, height/2);//This 3 lines (Translate, rotate, translate)
rotateY(radians(frameCount));// can let the balls rotating in the center of screen
translate(-width/2, -height/2);//
noStroke();
for(PVector nowPt : history){
fill(255,0,0); myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history2){
fill(255,255,0); myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history3){
fill(0,255,0); myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history4){
fill(0,0,255);myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history5){
fill(255,0,255);myBall(nowPt.x, nowPt.y, nowPt.z);
}
for( Hand hand : leap.getHands() ){
hand.draw();
Finger finger = hand.getThumb();
Finger finger2 = hand.getIndexFinger();
Finger finger3 = hand.getMiddleFinger();
Finger finger4 = hand.getRingFinger();
Finger finger5 = hand.getPinkyFinger();
PVector pos;
pos= finger.getPosition();
history.add(new PVector(pos.x,pos.y, pos.z));
pos = finger2.getPosition();
history2.add(new PVector(pos.x,pos.y, pos.z));
pos = finger3.getPosition();
history3.add(new PVector(pos.x,pos.y, pos.z));
pos = finger4.getPosition();
history4.add(new PVector(pos.x,pos.y, pos.z));
pos = finger5.getPosition();
history5.add(new PVector(pos.x,pos.y, pos.z));
}
}
//void mouseMoved(){
// history.add(new PVector(mouseX, mouseY));
//}

*加速(越多球越慢)
import de.voidplus.leapmotion.*;
LeapMotion leap;
PVector pt;
ArrayList<PVector> history;
ArrayList<PVector> history2;
ArrayList<PVector> history3;
ArrayList<PVector> history4;
ArrayList<PVector> history5;
void setup(){
size(640,480,P3D);//Need P3D 3D function (ball, translate, rotate, pushMatrix,popMatrix)
leap=new LeapMotion(this);
pt=new PVector(width/2, height/2);
history=new ArrayList<PVector>(0);
history2=new ArrayList<PVector>(0);
history3=new ArrayList<PVector>(0);
history4=new ArrayList<PVector>(0);
history5=new ArrayList<PVector>(0);
}
void myBall(float x, float y, float z){
pushMatrix();//backup translate/rotate matrix
translate(x,y,z*10);// z need to be x10 
sphere(10); 
popMatrix();//restore the translate/rotate matrix
}
void draw(){
background(255);
lights();// lighs will let 3D ball to look like 3D
translate(width/2, height/2);//This 3 lines (Translate, rotate, translate) 
rotateY(radians(frameCount));// can let the balls rotating in the center of screen
translate(-width/2, -height/2);//
noStroke();
for(PVector nowPt : history){
fill(255,0,0); myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history2){
fill(255,255,0); myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history3){
fill(0,255,0); myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history4){
fill(0,0,255);myBall(nowPt.x, nowPt.y, nowPt.z);
}
for(PVector nowPt : history5){
fill(255,0,255);myBall(nowPt.x, nowPt.y, nowPt.z);
}
for( Hand hand : leap.getHands() ){
hand.draw();
Finger finger = hand.getThumb();
Finger finger2 = hand.getIndexFinger();
Finger finger3 = hand.getMiddleFinger();
Finger finger4 = hand.getRingFinger();
Finger finger5 = hand.getPinkyFinger();
PVector pos;
pos= finger.getPosition();
history.add(new PVector(pos.x,pos.y, pos.z));
pos = finger2.getPosition();
history2.add(new PVector(pos.x,pos.y, pos.z));
pos = finger3.getPosition();
history3.add(new PVector(pos.x,pos.y, pos.z));
pos = finger4.getPosition();
history4.add(new PVector(pos.x,pos.y, pos.z));
pos = finger5.getPosition();
history5.add(new PVector(pos.x,pos.y, pos.z));
}
}
//void mouseMoved(){
// history.add(new PVector(mouseX, mouseY));

//}