Edit legends with a UI box in Mechanical

Aria

It has come to my attention that several users have issues editing the legend in the Mechanical UI due to a graphical defect with certain NVIDIA GPUs.

How can I create a python button in Mechanical that allows me to edit the upper/lower bounds?

Aria

Following snippet can be imported into the Button Editor to edit the legend

Triggering the button will prompt the user to fill in the upper/lower bounds of the contour.

The code itself is pasted below.

import clr
clr.AddReference("Ans.Utilities")
clr.AddReference('Ans.UI.Toolkit')
clr.AddReference('Ans.UI.Toolkit.Base')
import Ansys.UI.Toolkit
import Ansys.UI.Toolkit.Base

def ChangeContours():
    try:
        
        example = ContourGUI()
        example.Run()
    except:
        ExtAPI.Log.WriteError("Exception in ChangeContours()")
    
def GetMinMax():
    try:
        legendSettings = Ansys.Mechanical.Graphics.Tools.CurrentLegendSettings()
        noBands = legendSettings.NumberOfBands


        minVal = legendSettings.GetLowerBound(1).Value
        maxVal = legendSettings.GetLowerBound(noBands-1).Value
        return minVal, maxVal
    except:
        ExtAPI.Log.WriteError("Exception in GetMinMax()")
 
class WindowUI(Ansys.UI.Toolkit.Window):
 
    aLabel = None
    aButton = None
    aTextBox = None
    mainPanel = None
 
    def __init__(self):
        self.Location = Ansys.UI.Toolkit.Drawing.Point(100,100)
        self.Text = 'Contour editor'
        self.Size = Ansys.UI.Toolkit.Drawing.Size(250,150)
        self.StatusBar.Visible = False
        self.__BuildUI() #this will be defined later
        self.BeforeClose += Ansys.UI.Toolkit.WindowCloseEventDelegate(self.Window_Close)
 
    def __BuildUI(self):
        res_unit = Tree.FirstActiveObject.Maximum.Unit
        self.mainPanel = Ansys.UI.Toolkit.TableLayoutPanel()
        self.Add(self.mainPanel)
        self.mainPanel.Columns.Add(Ansys.UI.Toolkit.TableLayoutSizeType.Percent, 100)
        self.mainPanel.Rows.Add(Ansys.UI.Toolkit.TableLayoutSizeType.Percent, 33)
        self.mainPanel.Rows.Add(Ansys.UI.Toolkit.TableLayoutSizeType.Percent, 34)
        self.mainPanel.Rows.Add(Ansys.UI.Toolkit.TableLayoutSizeType.Percent, 33)
        omin,omax = GetMinMax()
        
        label1 = 'UPPER - Max Value [' + res_unit + ']'
        self.aLabel = Ansys.UI.Toolkit.Label(label1)
        self.mainPanel.Controls.Add(self.aLabel, 0, 0)
        self.aTextBox = Ansys.UI.Toolkit.TextBox()
        self.aTextBox.Text = omax.ToString()
        self.mainPanel.Controls.Add(self.aTextBox, 1, 0)
        
        label1 = 'LOWER Min Value [' + res_unit + ']'
        self.bLabel = Ansys.UI.Toolkit.Label(label1)
        self.mainPanel.Controls.Add(self.bLabel, 2, 0)
        self.bTextBox = Ansys.UI.Toolkit.TextBox()
        self.bTextBox.Text = omin.ToString()
        self.mainPanel.Controls.Add(self.bTextBox, 3, 0)




        self.aButton = Ansys.UI.Toolkit.Button('Update Contour')
        self.aButton.Click += Ansys.UI.Toolkit.EventDelegate(self.On_Click)
        self.mainPanel.Controls.Add(self.aButton, 4, 0)
 
    def On_Click(self, sender, args):
        # Here I update the legend
        res_unit = Tree.FirstActiveObject.Maximum.Unit
        upperVal = Quantity(float(self.aTextBox.Text), res_unit)
        lowerVal = Quantity(float(self.bTextBox.Text), res_unit)


        legendSettings = Ansys.Mechanical.Graphics.Tools.CurrentLegendSettings()
        noBands = legendSettings.NumberOfBands
        
        legendSettings.SetLowerBound(noBands-1,upperVal)
        legendSettings.SetLowerBound(1,lowerVal)


    
    def Window_Close(self, sender, args):
        Ansys.UI.Toolkit.Application.Quit()
 
class ContourGUI:
 
    ex1 = None
    def __init__(self):
        self.ex1 = WindowUI()
    
    def Run(self):
        Ansys.UI.Toolkit.Application.Initialize()
        self.ex1.Show()
        Ansys.UI.Toolkit.Application.Run()
        
ChangeContours()