cylinder.pde
3ae94af671dbDevelop

cylinder.pde
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			float cylinderBaseSize = 50;
			float cylinderHeight = 50;
			int cylinderResolution = 40;

			PShape openCylinder = new PShape();
			PShape closedCylinder = new PShape();

			void settings() {
			size(400, 400, P3D);
			}

			void setup() {
			float angle;
			float[] x = new float[cylinderResolution + 1];
			float[] y = new float[cylinderResolution + 1];
			//get the x and y position on a circle for all the sides
			for (int i = 0; i < x.length; i++) {
			angle = (TWO_PI / cylinderResolution) * i;
			x[i] = sin(angle) * cylinderBaseSize;
			y[i] = cos(angle) * cylinderBaseSize;
			}
			openCylinder = createShape();
			openCylinder.beginShape(QUAD_STRIP);
			//draw the border of the cylinder
			for (int i = 0; i < x.length; i++) {
			openCylinder.vertex(x[i], y[i], 0);
			openCylinder.vertex(x[i], y[i], cylinderHeight);
			}
			openCylinder.endShape();

			closedCylinder= createShape();
			closedCylinder.beginShape(TRIANGLE_FAN);
			closedCylinder.vertex(0, 0, cylinderHeight);
			for (int i = 0; i < x.length; i++) {
			closedCylinder.vertex(x[i], y[i], cylinderHeight);
			}
			closedCylinder.endShape();
			}

			void draw() {
			background(255);
			translate(mouseX, mouseY, 0);
			shape(openCylinder);
			shape(closedCylinder);
			}