Macro Delta xyz

Gives the Delta values and distance between 2 points.

How to use

1. Start the macro
2. Select the first point in 3D view
3. Select the second point in 3D view
4. Click in ComboView to quit

Script

Macro_Delta_xyz.py

# -*- coding: utf-8 -*-
#Delta x y z Click in ComboView to quit
import Draft, Part
import math,FreeCAD
from FreeCAD import Base

global positionX1 ;positionX1 = 0.0
global positionY1 ;positionY1 = 0.0
global positionZ1 ;positionZ1 = 0.0
global positionX2 ;positionX2 = 0.0
global positionY2 ;positionY2 = 0.0
global positionZ2 ;positionZ2 = 0.0
global pas        ;pas        = 0

def sub(first, other): 
"sub(Vector,Vector) - subtracts second vector from first one"
if isinstance(first,FreeCAD.Vector) and isinstance(other,FreeCAD.Vector):
return FreeCAD.Vector(first.x-other.x, first.y-other.y, first.z-other.z)
def length(first):
"lengh(Vector) - gives vector length"
if isinstance(first,FreeCAD.Vector):
return math.sqrt(first.x*first.x + first.y*first.y + first.z*first.z)
def dist(first, other):
"dist(Vector,Vector) - returns the distance between both points/vectors"
if isinstance(first,FreeCAD.Vector) and isinstance(other,FreeCAD.Vector):
return length(sub(first,other))

class SelObserver:
    def addSelection(self,document, object, element, position):  # Sélection
        global pas
        global positionX1
        global positionY1
        global positionZ1
        global positionX2
        global positionY2
        global positionZ2
        pas+=1
        if pas==1:
            positionX1 = position[0]
            positionY1 = position[1]
            positionZ1 = position[2]
            App.Console.PrintMessage("Begin    : X1 "+str(positionX1)+" Y1: "+str(positionY1)+" Z1: "+str(positionZ1)+"\n")    
        else:
            positionX2 = position[0]
            positionY2 = position[1]
            positionZ2 = position[2]
            App.Console.PrintMessage("End      : X2 "+str(positionX2)+" Y2: "+str(positionY2)+" Z2: "+str(positionZ2)+"\n")    
            App.Console.PrintMessage("Delta X  : "+str(abs(positionX1-positionX2))+"\n")    
            App.Console.PrintMessage("Delta Y  : "+str(abs(positionY1-positionY2))+"\n")    
            App.Console.PrintMessage("Delta Z  : "+str(abs(positionZ1-positionZ2))+"\n")    
            v1=FreeCAD.Vector(positionX1,positionY1,positionZ1)
            v2=FreeCAD.Vector(positionX2,positionY2,positionZ2)
            App.Console.PrintMessage("Distance : "+str(dist(v1,v2))+"\n")
            App.Console.PrintMessage("------------------------"+"\n")    
            pas=0

    def removeSelection(self,document, object, element): # Delete the selected object
        App.Console.PrintMessage("removeSelection"+"\n")
    def setSelection(self,document):                     # Selection in ComboView
        FreeCADGui.Selection.removeObserver(s)           # Uninstalls the resident function
        App.Console.PrintMessage("removeObserver"+"\n")

pas = 0
s=SelObserver()
FreeCADGui.Selection.addObserver(s)          # install the function mode resident