276     double vy = vector.y();  in scale()  local
280         m[1][1] = vy;  in scale()
284         m[1][1] *= vy;  in scale()
289         m[1][0] *= vy;  in scale()
290         m[1][1] *= vy;  in scale()
297         m[1][0] *= vy;  in scale()
298         m[1][1] *= vy;  in scale()
299         m[1][2] *= vy;  in scale()
300         m[1][3] *= vy;  in scale()
404     double vy = vector.y();  in translate()  local
408         m[3][1] = vy;  in translate()
412         m[3][1] += vy;  in translate()
416         m[3][1] = m[1][1] * vy;  in translate()
420         m[3][1] += m[1][1] * vy;  in translate()
423         m[3][0] += m[0][0] * vx + m[1][0] * vy;  in translate()
424         m[3][1] += m[0][1] * vx + m[1][1] * vy;  in translate()
427         m[3][0] += m[0][0] * vx + m[1][0] * vy + m[2][0] * vz;  in translate()
428         m[3][1] += m[0][1] * vx + m[1][1] * vy + m[2][1] * vz;  in translate()
429         m[3][2] += m[0][2] * vx + m[1][2] * vy + m[2][2] * vz;  in translate()
430         m[3][3] += m[0][3] * vx + m[1][3] * vy + m[2][3] * vz;  in translate()