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Question: combine plottools shapes using display. How to make top shape hide shape below it?

Question:combine plottools shapes using display. How to make top shape hide shape below it?

nm 10189 Maple 2024
plotting display
November 09 2024
3

I wanted to draw vertical line (as y axis) and add a solid disk at some y location (to indicate some point location). I used plottools:-disk  to make the small disk and used plottools:-line to make the y-axis then used plots:-display to combine them.

All is ok, except the disk is transparent. i.e. I can see the y-axis line below it. Is there a way to make it not transparent? i.e. solid color, so that the y-axis below it do not show?

> 

interface(version);

`Standard Worksheet Interface, Maple 2024.2, Windows 10, October 29 2024 Build ID 1872373`

> 

#plot vertical line
L:=plottools:-line([0,0],[0,3],color="blue"):
c1:=plottools:-disk([0,1],.1,color="red"):
c2:=plottools:-disk([0,2],.1,color="green"):
plots:-display([L,c1,c2],scaling=constrained,axes=none)

> 

 


i.e. 

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