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Is there an easier way???


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Old notes:
To get inverse cone angle (when called from a surface rather than center)
1 - Create a result element

2 - Right click "Calculate formula" text field and select "Formula"

3 -In the text box input "90º" as "90" (no quotes).

4 - Select the feature you wish to pull data from and select its "apexAngleHalf" (this is half cone angle) and double click

5 - Put that text in parentheses

6 - Input a forward slash to denote division

7 - After forwards slash input "(pi/180)" to convert data into decimal degrees.

Text should look exactly like the sample below with the exception of the feature in quotes

90-(getActual("006 Cone").apexAngleHalf)/(pi/180)
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This returned a value of 89.983257.

Why isn't there a button to allow this type of readout, like there is with angle between features??????
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Sorry about that. I put the rad in the wrong place. Corrected my post, too.
rad(90)-getActual("006 Cone").apexAngleHalf

No argument from me regarding more options.
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Just to be difficult, here's another way

(I try to keep all math happening on the Characteristics side, less flipping and scrolling when diagnosing)

Create a Half Cone Angle characteristic first

Size -> Standards -> Half Cone Angle

Create a Result Element

Select the "Angle" Radio Button

Formula:

rad(90)-getActual("Half Cone Angle").actual
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This is the compliment of a half cone angle. If that's literally what is required, you can force it. Theoretical plane coincident to the paper you drew it on (formulas or alignment to fix to the cone), intersect line with cone (clicking "shell") gives you the left part. Make a theoretical line (once again, either by formulas or alignment) to make your right line. Now just report the angle between those lines. There are simpler ways, just with PCM, but this should work.
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