processing

示例代码（processing画圆）： 1 void setup() 2 { 3 //初始化创建一个960*480像素大小的窗口 4 size(960,480); 5 smooth(); 6 } 7 8 void draw() 9 { 10 //当鼠标被按下时，圆变成黑色 11 if(mousePressed) 12 { 13 fill(0); 14 } 15 //鼠标未按下，圆是白色 16 else 17 { 18 fill(255); 19 } 20 //绘制一个直径为80的圆 21 ellipse(mouseX,mouseY,80,80); 22 } 23 运行结果如下： Processing基本图形绘制函数： 绘制直线line(x1,y1,x2,y2) 绘制三角形triangle(x1,y1,x2,y2,x3,y3) 绘制四边形quad(x1,y1,x2,y2,x3,y3,x4,y4) 绘制矩形rect(x,y,width,height) 绘制圆形或椭圆ellipse(x,y,width,height) 绘制扇形arc(x,y,width,height,start,stop) 来源： https://www.cnblogs.com/YanQing1998/p/11992810.html

What would be the easiest and simplest way to keep the fill() the same after clicking (that's when it changes) and then unclicking, and leaving hover? In this project, I simply made a grid. When the mouse hovers over a specific rect (at x , y ) it changes color based on the state it is in. fill(50) is the default, fill(75) is when the mouse is hovering, and fill(100) is when the mouse clicks. But here when the mouse is unclicked it returns to hover fill until the mouse leaves the rectangle. Thanks. int cols, rows; int scl = 20; void setup() { size(400, 400); int w = 400; int h = 400; cols = w

How do you configure SqLite 3 to process a single query using more than 1 core of a CPU ? Since version 3.8.7, SQLite can use multiple threads for parallel sorting of large data sets. sqlite3 itself does not do that. However, I have a project called multicoresql on github that has utility programs and a C library for spreading sql queries onto multiple cores. It uses sharding so you have to break your large database or datafile into multiple sqlite3 database files. A single SQL query must be written as two SQL queries, a map query that first runs on all the shards, and a reduce query to

I'm trying to import 3d objects in Processing from .obj files found on the web. I've seen that there are several ways to import objs into the scene. I'm using PShape in this example and an obj file found here . I've started from the Examples>Basic>Shape>LoadDisplayObJ sample in which textures work. I was able to import the obj file using the loadShape function but no textures and colors were displayed. Am I missing something? Should I import the .mtl file as well? Here is the code: PShape house; float ry; public void setup() { size(640, 360, P3D); house = loadShape("huts/huts.obj"); } public

There are apparently numerous reasons why Processing will not detect the installation of an external library. 1) Library installed in wrong folder The library must be installed in a directory "libraries" in the sketchbook folder, which is probably not in the installation directory. Careful Linux is case sensitive so libraries and Libraries are two different directories, as are sketchbook and Sketchbook. 2) Library installed in correct folder but wrongly referenced It's possible to confirm the current sketchbook directory used by Processing by looking in "Preferences" in the "File" menu of the