PShape bug?
in
Core Library Questions
•
7 months ago
Hi, I have code that draws a group of pshapes. Each child is a line of random data like a spectrogram. The drawing looks screwed up on one side and I'm pretty sure I'm not doing anything wrong in the code. I'm already aware of a memory leak problem with PShapes with removing children and setting vertices, so running this code will probably eat up a lot of your memory, but you should be able to see the problem i'm having with drawing. I'm running this on Windows 7.
PShape parent;
int lineCount;
void setup() {
parent = createShape(GROUP);
lineCount = 0;
size(1280, 720, OPENGL);
}
void draw() {
float[] data = new float[65];
for (int i = 0; i < 65; i++) {
if (i == 1 || i == 2)
data[i] = 1;
else
data[i] = (float) Math.random();
}
PShape newLine = createShape();
newLine.beginShape();
for (int i = 0; i < 65; i++) {
newLine.stroke(map(data[i], 0, 1, 0, 255));
newLine.vertex(i*10, -lineCount);
}
newLine.endShape();
parent.translate(0, 1);
parent.addChild(newLine);
if (parent.getChildCount() > height / 2)
parent.removeChild(0);
shape(parent);
lineCount++;
}
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