Printf ("Graphics error: %s \n", grapherrormsg (errorcode)) Įxit (1) /* terminate with an error code */ The coordinate of point c after reflectionĬ (4, 8) becomes c 1 (4, -8) Program to perform Mirror Reflection about a line:įloat p,p1,x1,y1,xm,ym
The coordinates of A, B, C are given asįind reflected position of triangle i.e., to the x-axis. The last step is the rotation of y=x back to its original position that is counterclockwise at 45°.Įxample: A triangle ABC is given. After it reflection is done concerning x-axis. Reflection about line y=x: The object may be reflected about line y = x with the help of following transformation matrixįirst of all, the object is rotated at 45°. This is also called as half revolution about the origin.Ĥ. In this value of x and y both will be reversed. In the matrix of this transformation is given below Reflection about an axis perpendicular to xy plane and passing through origin: The following figure shows the reflection about the y-axisģ. The object will lie another side of the y-axis.
Here the values of x will be reversed, whereas the value of y will remain the same. Reflection about y-axis: The object can be reflected about y-axis with the help of following transformation matrix The object will lie another side of the x-axis.Ģ. Following figures shows the reflection of the object axis. In this transformation value of x will remain same whereas the value of y will become negative. Reflection about x-axis: The object can be reflected about x-axis with the help of the following matrix Reflection about an axis perpendicular to xy plane and passing through the originġ.
The mirror image can be either about x-axis or y-axis. It is a transformation which produces a mirror image of an object.
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