Some help with a GUI Calc done in Python

[NaughtyNathan]

you've not posted any GUI code so we can't tell you what you may have done wrong, or need to add, so I'll go over the entire process. There is more than one way to approach this, but I'm going to give you the "easy" way (this is usually the way I would do it :) )

Basically you name your input controls so that you can later query them. Then you write a function which queries them, does the maths (or other operation(s)) and prints a result. You then "attach" this function to your GUI button.

def calculateBMI(*args):
height = mc.floatFieldGrp('bmiHeightField', q=True, v=True) # get the height value from our field
weight = mc.floatFieldGrp('bmiWeightField', q=True, v=True) # get the weight value from our field

bmi = height[0]*weight[0] # or whatever the actual BMI equation is?

print 'the BMI is: %0.2f \n' % bmi,

def bmiUI():
win = 'myBMICalcWin'
if mc.window(win, exists=True):
mc.deleteUI(win)
mc.window(win)
mc.columnLayout(adj=1)
mc.floatFieldGrp('bmiHeightField', label='Height')
mc.floatFieldGrp('bmiWeightField', label='Weight')
mc.button('Calculate BMI', c=calculateBMI)
mc.showWindow()

bmiUI()

obviously this is very basic, but the theory is still valid for your purposes. You could also add a third (named) float field to display the resulting BMI rather than printing it (just change the calc function to edit the third float field value with the result).

[zoharl]

Scripting a BMI calculator won't help the situation. You need to watch your diet and exercise ;)

[MrDream]

Hi ,
I am on the same stream, trying to sort out some problem on my BMI camculator
This is my script :

import maya.cmds as cmds

def calculateBMI(*args):
Height = cmds.floatField ("Float_1", q = True, v = True)
Weight = cmds.floatField ("Float_2", q = True, v = True)


BMI = Weight[0] / Height[0]*Height[0]

print "The BMI is: %0.2f \n" % BMI,
def UI():

#check to see if our window exixst
if cmds.window("exampleUI", exists = True):
cmds.deleteUI("exampleUI")

#Create out Window
cmds.window("exampleUI", w = 400, h = 200, mnb = False, mxb = False, sizeable = False, title = "BMI Calculator")

#Create a main layaout
mainLayout = cmds.columnLayout (w = 400, h = 200)
#Create row Layout
rowLayout = cmds.rowColumnLayout (numberOfColumns = 2, columnWidth = [(1, 190), (2, 190)], columnOffset = [(1, "both", 5),(2, "both", 5)])
cmds.separator (h = 10, style = "none")
cmds.separator (h = 10, style = "none")
Text_1 = cmds.text ("Welcome to the BMI Calcultation.", align = ("left"))
Text_2 = cmds.text ("")
cmds.separator (h = 10, style = "none")
cmds.separator (h = 10, style = "none")
Text_3 = cmds.text ("Insert your Values Below", align = ("left"))
Text_4 = cmds.text (" ")
cmds.separator (h = 10, style = "none")
cmds.separator (h = 10, style = "none")
Text_5 = cmds.text ("Insert Your Height in Meters:", align = ("left"))
Float_1 = cmds.floatField ()
cmds.separator (h = 10, style = "none")
cmds.separator (h = 10, style = "none")
Text_6 = cmds.text ("Insert Your Weight in Kilograms:", align = ("left"))
Float_2 = cmds.floatField ()
cmds.separator (h = 10, style = "none")
cmds.separator (h = 10, style = "none")

#Create Button
cmds.button (label = "Calculate BMI", c = calculateBMI, w = 400, h = 50, parent = mainLayout, align = ("center"))





#Show window
cmds.showWindow("exampleUI")
UI()
This is the problem :
# Error: RuntimeError: file <maya console> line 5: Object 'Float_1' not found. #

Any help would be appreciated
Cheers.

[NaughtyNathan]

you haven't named your floatFields in the UI code. So when the calculateBMI function tries to query the named float field, there isn't one that has the given name!

[MrDream]

Hi,
Thanks I solved it
I was wondering how would you edit a floatfiledgpr to print my BMI?? Or lets say I want to print a text on my UI EG: you are overweighted.... I got all the if done but it is only printing it in the script editor.
I would like to make it appear in my UI
Thanks again