code: public Matrix3x2d setView(double left, double right, double bottom, double top) {
          m00 = 2.0 / (right - left);
          m01 = 0.0;
          m10 = 0.0;
          m11 = 2.0 / (top - bottom);
          m20 = (left + right) / (left - right);
          m21 = (bottom + top) / (bottom - top);
          return this;
      }
docs: Set this matrix to define a "view" transformation that maps the given <code>(left, bottom)</code> and
  <code>(right, top)</code> corners to <code>(-1, -1)</code> and <code>(1, 1)</code> respectively.
  
  @see #view(double, double, double, double)
  
  @param left
  the distance from the center to the left view edge
  @param right
  the distance from the center to the right view edge
  @param bottom
  the distance from the center to the bottom view edge
  @param top
  the distance from the center to the top view edge
  @return this