| Define a region between curves [message #94485] |
Thu, 08 June 2017 08:27  |
Rafael Cirolini
Messages: 3
Registered: May 2017
|
Junior Member |
|
|
Hello,
I'm needing help getting regions to map each of the regions between these equations below. These equations describes the BPT diagram btw.
Curve plot
x=findgen(135)*0.01-1.49
y= 0.61/(x-0.05)+1.3
Curve plot
xke=findgen(175)*0.01-1.49
yke= 0.61/(xke-0.47)+1.19
Line plot
xc=findgen(94)*0.1-0.2
yc= 1.01 * xc + 0.48
These equations plot two curves and a line, where they form four different regions. A region is below the first equation, the second is between the second and the first (which are the two curves), a third and fourth regions that are above and below the line equation also above the second curve equation.
I tried to apply the equations in the range they are defined in the diagram and I made this relation to go through a certain number of values:
for c= -12,9 do begin
number = make_array(1, 1, /float, value=c)
number = number/10
endfor
My problem is that I can not find a way to define each region. I tried to set a fixed value of x and vary y (x) but it did not work out. How can I define these regions without being polygons? Because my goal is to mount the tvscale and later the imcontour. I think i made myself clear of what i'm having trouble with. But summarizing my problem is to define a region between these equations to make a tvscale.
I accept any ideas or suggestions. Thanks.
|
|
|
|
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
