Straight line between two polar points

Hi all

I created a VI that could be traced a Polar curve according to time-distance formula. The VI has present Mag and target Mag. each with its own angle (Polar form that is (r, theta)). I want to draw a straight line from the current point to the target point. I used the time-distance formula to trace the scale and used the same slope to point the angle. However, I get a curved path as shown in the attachment.

Could someone tell me what formula can be used to draw a straight line from the current point to the target point?

Thank you.

1 convert two polar points in rectangular coordinates.

2. generate the points between the two.  You can use the function of ramp or some other methods to generate points.

3 convert points to polar coordinates and draw.  Nice straight line!

Of course, the question is why do you want a straight line when you use the polar coordinates?  He will not directly be r or theta.

Bruce

Tags: NI Software

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