How can i draw .txt data written in meshgrid format.

[ali1 (ali shahmohammadiazar)]

Hi,
How can i draw .txt data written in meshgrid format. in matlab i used to draw it as following
Ux.txt (231.6 KB)
thanks.
a=1:1:72;
b=1:1:71;
[A, B]=meshgrid(a,b);
contourf(A,B,data’,30);

[mwestphal (Mathieu Westphal (Kitware))]

How is your data formatted ? It only contains numbers.

[Kenichiro-Yoshimi (Kyoshimi)]

Hello,

I was able to load it in the same way as the link below.

CSV table data to 3D

One way to achieve this is to use a Programmable Source. Source > Alphabetical > Programmable Source Fill in the Script (RequestInformation) as shown below. from paraview import util util.SetOutputWholeExtent(self, [0, 98, 0, 37, 0, 0]) Here, the values to be specified for SetOutputWholeExtent are obtained by counting the number of rows and columns from the csv file in advance. Enter the following in Script. import numpy as np path = 'data_path/Sample.csv' a = np.loadtxt(path, delimiter=…

Now you need to modify the Script (RequestInformation) and Script in the Programmable Source Filter.

• Script (RequestInformation)

from paraview import util
util.SetOutputWholeExtent(self, [0, 140, 0, 141, 0, 0])

• Script

import numpy as np

path = 'your_data_path/Ux.txt'
a = np.loadtxt(path, encoding='utf-8_sig').flatten()

output.SetDimensions(141, 142, 1)
output.SetOrigin(0.0, 0.0, 0.0)
output.SetSpacing(1, 1, 1)
output.PointData.append(a, 'height')