processing

changing the color of an ellipse using hashtag data using Twitter4j 3.0.3

由 无人久伴 提交于 2019-12-12 05:14:15
问题 Okay, so i dont really know much about writing code, yet. I am working on a project that uses twitter API data. My goal for the project is to use hash tags to represent both good and bad things (for sake of simplicity, lets use #good and #bad). I want that hashtag data to modify the color of a simple ellipse to a shade of color in between red and green, depending on the number of #good and #bad tweets. I like to think of it as a +100/-100 spectrum. each #good tweet is +1, each #bad is -1. If

Processing: Draw vector instead of pixels

由 笑着哭i 提交于 2019-12-12 04:24:40
问题 I have a simple Processing Sketch, drawing a continuous line of ellipses with a 20px diameter. Is there a way to modify the sketch so that it draws vector shapes instead of pixels? void setup() { size(900, 900); background(110, 255, 94); } void draw() { ellipse(mouseX, mouseY, 20, 20); fill(255); } Thanks to everyone who can provide some helpful advice. 回答1: Expanding my comment above, there a couple of things to tackle: drawing a continuous line of ellipses with a 20px diameter draws vector

Setting image instead of java standard ellipse Java Processing

由 99封情书 提交于 2019-12-12 04:19:50
问题 I'm trying to create a solar system using processing but I'm stuck at trying to set an image instead of using the java standard elipse image. I started this at school and it consisted of an ellipse rotating around another ellipse. package processing; import processing.core.PApplet; import processing.core.PImage; public class SolarSystem extends PApplet{ PImage background; Pianets earth; public void settings() { size(650,500); } public void setup() { background = loadImage("C:\\background\\bg

How to stop a jar file from running from a jsp

由 巧了我就是萌 提交于 2019-12-12 03:40:28
问题 I have created an web application that trigers some .jar applets. I print the jars with the HTML tags through a servlet in a jsp. Imagine two situations. A anb B. Starting with A the jar runs. I go to B, the 2nd jar replaces the first. When I return to A, the 2nd jar is removed but the first jar fails to start with a Adding same VBO twice + null pointer exception. So I believe I have to stop it after leaving situation A. Is there a way to stop the .jar from running from inside the servlet?

Incorporate Processing OpenCV contour in video capture: : Width(0) and height(0) cannot be <= 0

由 扶醉桌前 提交于 2019-12-12 03:16:17
问题 I want to get the contour of video (or image) every 5 second, using Processing OpenCV library. I have the following code, but for the line opencv = new OpenCV(this, cam); , it tells me: Width(0) and height(0) cannot be <= 0 . I think the program is that the second parameter in new OpenCV should be an image, as opposed to a camera capture, but what I should do to put them together? import processing.video.*; import gab.opencv.*; OpenCV opencv; ArrayList<Contour> contours; Capture theCap;

How to get control points for a curve from a set of points which make a straight line?

由 随声附和 提交于 2019-12-12 03:07:22
问题 I have a set of n points which make a line, but I would like to have a curve instead of a line.For doing curves in processing, there are control points which are needed, I would like to know how can I get control points from a set on n points. Also I would be dragging curves, hence I would need to find new control points all the time I presume? 回答1: Well, you can basically just parse the array of coordinates and use them to create a curveVertex() shape in Processing like this: // create an

Processing oscP5 Library

由 孤街浪徒 提交于 2019-12-12 02:46:49
问题 I'm using the oscP5 library in Processing. I've already looked in the javadoc for oscP5 and I've browsed through the source but I can't figure it out. When I get debug info like this: ### new Client @ netP5.TcpClient@2515 What does the value 2515 represent? I know it is not the port the client is using. Is it a unique id for the client? Is it a variable I can access in the TcpClient class? Thanks. 回答1: It is the objects (TcpClient) address in memory. You find the source code at src/netP5

IDEA整合spring+springmvc+hibernate遇到错误:java.lang.NoSuchMethodError: org.hibernate.Session.createQuery(

由 感情迁移 提交于 2019-12-12 02:45:45
第一次使用IDEA来整合SSH，遇到了这个错误，java.lang.NoSuchMethodError: org.hibernate.Session.createQuery(），找不到这个方法，主要原因是我导入了两个版本的hibernate 的jar包，所以产生了冲突！！找了好久！千万别再犯这种错误了！ HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoSuchMethodError: org.hibernate.Session.createQuery(Ljava/lang/String;)Lorg/hibernate/query/Query; type Exception report message Handler processing failed; nested exception is java.lang.NoSuchMethodError: org.hibernate.Session.createQuery(Ljava/lang/String;)Lorg/hibernate/query/Query; description The server encountered an internal error that prevented it from

Circle and Rectangle collision

由 左心房为你撑大大i 提交于 2019-12-12 02:35:49
问题 I have a program in Processing for a bouncing ball and a rectangle. I can get the collision for the sides of the rectangle correct, but I have no idea how to get the corners. This is what I have so far: int radius = 20; float circleX, circleY; //positions float vx = 3, vy = 3; //velocities float boxW, boxH; //bat dimensions void setup(){ size(400,400); ellipseMode(RADIUS); rectMode(RADIUS); circleX = width/4; circleY = height/4; boxW = 50; boxH = 20; } void draw(){ background(0); circleX +=

How to rework acceleration formula for double pendulum with mouse interaction

由 别等时光非礼了梦想. 提交于 2019-12-12 01:13:13
问题 I need to make the mousePressed() function move the entire pendulum within the bounds of its length (r1 and r2 = 200). Lines 32-44 need to change based on the mousePressed function I have code for a single pendulum that uses PGraphics with a function that works the way i want it to. It uses the length of the pendulum as the maximum displacement for the ball at the end. I need to translate this into a double pendulum that accounts for two lengths instead of one.After running the program for a
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