如图,在平面直角坐标系中,已知\(\triangle ABC\)的三个顶点的坐标分别为\(A(-3,5)\),\(B(-2,1)\),\(C(-1,3)\).
\((1)\)若\(\triangle ABC\)关于\(x\)轴对称的图形是\(\triangle A_{1}B_{1}C_{1}\),直接写出点\(A_{1}\)、\(B_{1}\)、\(C_{1}\)的坐标;
\((2)\)将\(\triangle ABC\)绕着点\(O\)按顺时针方向旋转\(90^{\circ}\)得到\(\triangle A_{2}B_{2}C_{2}\),画出\(\triangle A_{2}B_{2}C_{2}\),并写出点\(A\)的对称点\(A_{2}\)的坐标;
\((3)\)计算\(\triangle OA_{1}A_{2}\)的面积.