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How to use a MeshFunctions in ListDensityPlot[ ] ?

hwoarang Polar
Posted 4 years ago

Hello Guys.

I plotted the data composed of many (x,y,z) points with ListDensityPlot and the graph looks nice with a good resolution. Here the value z ranges from 10 to 20 (for example). I wanted to draw Meshes for z = 10, 12, 14, 16, 18, 20. But when I used Mesh = 6, it is ok that the number of lines are 6, but the interval between succesive lines are not 2, nor equal interval. It can be very easy for you. But I couldn't find a solution for hours. Would you help me...? Thank you in advance.

And the code and data files are attached.

Best regards, Jiwan

Attachments:
Post1.nb
Test.txt
POSTED BY: hwoarang Polar
5 Replies
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hwoarang Polar
hwoarang Polar
Posted 4 years ago

Thank you all and I am sorry for the late reply. I had the same problem, Rohit Namjoshi. When I used Mesh -> {10,12,14,16,18}, there generated many lines. That's why I asked the help.

Thank you Hans Milton for the suggestion. I already tried ListContourPlot first. But the colour resolution was not good. That's why I tried to use ListDensityPlot. -_-a

I am still trying to find the answer....
POSTED BY: hwoarang Polar
Hans Milton
Hans Milton
Posted 4 years ago

ListDensityPlot with 6 contour lines:

data = HeffTempStr[[All, {1, 2, 4}]];

ListDensityPlot[
    data, 
    PlotLegends -> Automatic, AxesStyle -> Directive[Black, Thick],
    LabelStyle -> Directive[Black, Large, FontFamily -> "Helvetica"],
    ColorFunction -> "BlueGreenYellow",
    FrameTicks -> {{{10, 20, 30, 40, 50, 60}, None}, {{400, 500, 600}, None}},
    Mesh -> 6, MeshFunctions -> {#3 &}
 ]

enter image description here
POSTED BY: Hans Milton
Rohit Namjoshi
Rohit Namjoshi
Posted 4 years ago
POSTED BY: Rohit Namjoshi
Rohit Namjoshi
Rohit Namjoshi
Posted 4 years ago

Hi Jiwan,

It would help if you could edit your question and add the code you are using and attach a sample of the data.

Take a look at the documentation for MeshFunctions under the Options section for ListDensityPlot.
POSTED BY: Rohit Namjoshi
hwoarang Polar
hwoarang Polar
Posted 4 years ago

When I use Mesh -> {{10,12,14,16,18}}, it works. It's simple grammar. -_-a Thank you very much! Best regards, Jiwan.
POSTED BY: hwoarang Polar
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