Thread: Calculatw width

Hi,
i have a issue with change the appearance width of rectangle, that is if the rectangle rotation is 0 degree change its original width, else if the rectangle is rotated in 90 degree then change its original height,

Rectangle height=100 width=50 and its rotation angle is 90 degree around center point, now i need to change the appearance width =appearance width *2, so how can calculate this with angle

please help me
Thanks in advance

Hello wpfhelp

Originally Posted by wpfhelp

Hi,
i have a issue with change the appearance width of rectangle, that is if the rectangle rotation is 0 degree change its original width, else if the rectangle is rotated in 90 degree then change its original height,

Rectangle height=100 width=50 and its rotation angle is 90 degree around center point, now i need to change the appearance width =appearance width *2, so how can calculate this with angle

please help me
Thanks in advance

As I understand it, the rules are: there are two possible angles of rotation: and ; and then:

If the angle of rotation is , then

change the original width

else

change the original height.

In the problem you are given, the rotation angle is , so we must change the original height, multiplying it by . The original height was and the width ; so after the change, the dimensions of the rectangle are now .

Grandad

Hi Grandad, Thank you for your reply, but i cant use if else loop to calculate this because, i need to calculate all possible values between 0-360 degree, now i am looking a solution like apperanceWidth = rectangle.Width * cos + rectangle.Height * sin; Thank you

Hello wpfhelp

I still really don't understand what you're after here. Can you draw us a diagram?

Grandad

Hello,

please check this drawing

thank you

Hi,

i have tried with Pythagorean theorem, and it gives a start