Scale Shape. Illustration by George Brower.

Move the mouse left and right to zoom the SVG file. This shows how, unlike an imported image, the lines remain smooth at any size.

// The next line is needed if running in JavaScript Mode with Processing.js
/* @pjs preload="bot1.svg"; */ 

PShape bot;

void setup() {
  size(640, 360);
  // The file "bot1.svg" must be in the data folder
  // of the current sketch to load successfully
  bot = loadShape("bot1.svg");
} 

void draw() {
  background(102);
  translate(width/2, height/2);
  float zoom = map(mouseX, 0, width, 0.1, 4.5);
  scale(zoom);
  shape(bot, -140, -140);
}