Function _shapeCorners

test/unit/visual/cases/shape_modes.js:92–94

(x1, y1, x2, y2)

          // Make the following calls to shapeCorners shorter
          // by omitting p5, shape and mode parameters
          function _shapeCorners(x1, y1, x2, y2) {
            shapeCorners(p5, shape, p5[mode], x1, y1, x2, y2);
          }

          // Quadrant I (Bottom Right)
          //              P1      P2