Chart Component

Forum|Forum|7 months ago
September 18, 2025
3 replies
1015 views

Hello everyone, I hope you are doing fine!

I recently calculated wave theory selection using Mathcad Prime 9.0.0.0. I'm curious, is there a way to determine the region automatically for given points? I want the function to return "Linear/Airy", "Stokes 5", "Stream Function 3", etc. based on the chart.

Does anyone know? I attached the full calculation below.

1_Wave-Theory.zip

Mechanical_Engineering

W

Werner_E

25-Diamond I

No, Prime does not offer any automatic way to determine which area a given point would lie in.

You would have to program a function which determines which area a point with given coordinates is in and also would have to decide what to do with points lying on the border of two or more areas. Looks like quite some work to do.

R

RM_12291418

Author

4-Participant

I see. Thank you for the explanation!

T

terryhendicott

21-Topaz II

Hi

A while ago dealing with vector based text fonts in bitmap graphics on this forum wrote a Mathcad 15 routine to find if a point is in a polygon.

If the areas on your excellent graph are turned into polygons it is possible to test where a point lies.

This will take a while to work up so please be patient.

Cheers

Terry

T

terryhendicott

21-Topaz II

Hi,

Can you upload the excel sheet for the lines?

Cheers

Terry

W

Werner_E

25-Diamond I

Here is my attempt defining the necessary polygons and determining the area a points lies in:

After saving the file and reopening it the region with the Chart component was corrupt and so I deleted it.

Prime 9 file attached

2_WE_20250920_Wave-Theory_P9.zip

W

Werner_E

25-Diamond I

Added the hatching function by Prof. Birkeland.

Unfortunately the creation of all the hatch lines is very time consuming and the result is not as nice as we would like. Guess its also because of the log scale.