如果有人能帮助我，我将非常感激，我有一个草图，使用户能够在屏幕上用无线喷雾罐绘制涂鸦。此时，安装了tuio代码，当用户按下鼠标按钮时，会发出喷雾声。但是当按下鼠标按钮时，我在草图中创建椭圆时遇到困难。
This is my code;
import ddf.minim.spi.*;
import ddf.minim.signals.*;
import ddf.minim.*;
import ddf.minim.analysis.*;
import ddf.minim.ugens.*;
import ddf.minim.effects.*;
Minim minim;
AudioPlayer player;
AudioInput input;
/*TUIO processing demo - part of the reacTIVision project
http://reactivision.sourceforge.net/
Copyright (c) 2005-2009 Martin Kaltenbrunner <mkalten@iua.upf.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You shgould have greceived a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// we need to import the TUIO library
// and declare a TuioProcessing client variable
import TUIO.*;
TuioProcessing tuioClient;
import java.util.*; //ADD THIS LINE TO BE ABLE TO USE TUIOCLIENT WITH PROCESSING 2+
// these are some helper variables which are used
// to create scalable graphical feedback
float cursor_size = 15;
float object_size = 60;
float table_size = 760;
float scale_factor = 1;
PFont font;
//declare a boolean to check mouse click
boolean drag = false;
int n=0;
int size[]= {20,40};
int sizeChosen;
boolean inside = false;
PImage bg;
PImage img;
PGraphics pg;
import controlP5.*;
ControlP5 cp5;
boolean mp = true;
void setup ()
{
size(1000,1000);//size(screen.width, screen.height).
smooth();
noStroke();
fill(0);
loop();
frameRate(30);
hint(ENABLE_NATIVE_FONTS);
font = createFont("Arial",18);
scale_factor = height/table_size;
// we create an instance of the TuioProcessing client
// since we add "this" class as an argument the TuioProcessing class expects
// an implementation of the TUIO callback methods (see below)
tuioClient = new TuioProcessing(this);
ellipseMode( CENTER);
//smooth();
noCursor();
background(170);
bg = loadImage("brickwall.jpg");
background(bg);
img = loadImage("instructions.jpg");
image (img,30,40,THUMB_SIZE, THUMB_SIZE);
cp5 = new ControlP5(this);//screenshot button
cp5.addButton("Save Graffiti Artwork").setPosition(0,650).setSize(200,100);//screenshot details
minim = new Minim(this);
player = minim.loadFile("spray_close.wav");
input = minim.getLineIn();
}
void draw() {
if (mp = true);
ellipse(255,0,255,0);
background(bg);
textFont(font,18*scale_factor);
float obj_size = object_size*scale_factor;
float cur_size = cursor_size*scale_factor;
Vector tuioObjectList = tuioClient.getTuioObjects();
for (int i=0;i<tuioObjectList.size();i++) {
TuioObject tobj = (TuioObject)tuioObjectList.elementAt(i);
noStroke();
fill(0);
pushMatrix();
translate(tobj.getScreenX(width), tobj.getScreenY(height));
rotate(tobj.getAngle());
// ellipse(-obj_size/2, -obj_size/2, obj_size, obj_size);
popMatrix();
//fill(255);
text(""+tobj.getSymbolID(), tobj.getScreenX(width), tobj.getScreenY(height));
if (mousePressed) {
ellipse(255,0,255,0);
// printIn("Pink");
//mouse press 1
if (tobj.getSymbolID()==12) {
ellipse(255,0,255,0);
}
}
}
Vector tuioCursorList = tuioClient.getTuioCursors();
for (int i=0;i<tuioCursorList.size();i++) {
TuioCursor tcur = (TuioCursor)tuioCursorList.elementAt(i);
Vector pointList = tcur.getPath();
if (pointList.size()>0) {
stroke(0, 0, 255);
TuioPoint start_point = (TuioPoint)pointList.firstElement();
;
for (int j=0;j<pointList.size();j++) {
TuioPoint end_point = (TuioPoint)pointList.elementAt(j);
line(start_point.getScreenX(width), start_point.getScreenY(height), end_point.getScreenX(width), end_point.getScreenY(height));
start_point = end_point;
}
stroke(192, 192, 192);
fill(192, 192, 192);
ellipse( tcur.getScreenX(width), tcur.getScreenY(height), cur_size, cur_size);
fill(0);
text(""+tcur.getCursorID(), tcur.getScreenX(width)-5, tcur.getScreenY(height)+5);
}
}
if (drag) //if drag = true, i-e if mouse click is holding, ellipse are drawing according the mouse's position
{
fill(#FF00FF); //black color
ellipse(mouseX, mouseY, 50,50); //draw ellipse with x and y mouse's position + size 10*10
//or line strokeWeight(3);stroke(0);line(mouseX,mouseY,25,25);
}
//draw palette size
for(n=0;n<2;n++)
{
fill(0);
ellipse(360,10+n*40,20*(n+1),20*(n+1));
}
}
//size selector
void mousePressed() {
//bDrawFullSize = true;
if (inside==true){
sizeChosen=size[n];
}
player.play();
mp = true;
}
void mouseReleased() {
//bDrawFullSize = true;
drag = false;
player.close();
//since close closes the file, we need to load the sound effect again.
player = minim.loadFile("spray_close.wav");
}
//function "drag and drop"
void mouseDragged() {
drag = true;
}
// these callback methods are called whenever a TUIO event occurs
// called when an object is added to the scene
void addTuioObject(TuioObject tobj) {
println("add object "+tobj.getSymbolID()+" ("+tobj.getSessionID()+") "+tobj.getX()+" "+tobj.getY()+" "+tobj.getAngle());
}
// called when an object is removed from the scene
void removeTuioObject(TuioObject tobj) {
println("remove object "+tobj.getSymbolID()+" ("+tobj.getSessionID()+")");
}
// called when an object is moved
void updateTuioObject (TuioObject tobj) {
println("update object "+tobj.getSymbolID()+" ("+tobj.getSessionID()+") "+tobj.getX()+" "+tobj.getY()+" "+tobj.getAngle()
+" "+tobj.getMotionSpeed()+" "+tobj.getRotationSpeed()+" "+tobj.getMotionAccel()+" "+tobj.getRotationAccel());
}
// called when a cursor is added to the scene
void addTuioCursor(TuioCursor tcur) {
println("add cursor "+tcur.getCursorID()+" ("+tcur.getSessionID()+ ") " +tcur.getX()+" "+tcur.getY());
}
// called when a cursor is moved
void updateTuioCursor (TuioCursor tcur) {
println("update cursor "+tcur.getCursorID()+" ("+tcur.getSessionID()+ ") " +tcur.getX()+" "+tcur.getY()
+" "+tcur.getMotionSpeed()+" "+tcur.getMotionAccel());
}
// called when a cursor is removed from the scene
void removeTuioCursor(TuioCursor tcur) {
println("remove cursor "+tcur.getCursorID()+" ("+tcur.getSessionID()+")");
}
// called after each message bundle
// representing the end of an image frame
void refresh(TuioTime bundleTime) {
redraw();
}
void keyPressed() {
endRecord();
background(bg);
// exit();
}
public void saveScreen() {
saveFrame();
player.pause();
}
// returns true if mouse is inside this rectangle
boolean inside(int left, int top, int right, int bottom ) {
if (mouseX>left && mouseX<right && mouseY>top && mouseY<bottom ) {
return true;
}
else {
return false;
}
}
答案 0 :(得分：0)
功能下的任何内容：
void mousePressed() {
//bDrawFullSize = true;
if (inside==true){
sizeChosen=size[n];
}
player.play();
mp = true;
}
。所以你可以在这里创建一个椭圆（或任何你想要的）。
答案 1 :(得分：0)
您可以将椭圆生成函数放在检查鼠标按下状态的分支条件中：
if (mousePressed) {
ellipse(random(0,width),random(0,height),random(0,100),random(0,100));
}
将条件放在Draw函数的末尾，以便覆盖任何背景元素