title: Know coordinate of Z from XY value and angle
body: <p>I am using XY coordinate of drawing to draw object using Ink. Now I have one requirement. I have one Object, which is slope of 30 degree and I need to write some text for e.g. 'ABC' on the slope. What I have is XY coordiate and Angle and I want to find the Z from this information. Could you please suggest me some proper way to find the Z from the given information?</p>
  
  <p>While Marking on the slope I need to down the Z axis to remain focus on Slope and for the same I will need value of Z at every point. As of now I have XY coordinate and Angle and I wanted to find the Z coordinate.</p>
  
  <p>Looking forward to hear the experts suggestion/direction.</p>