See main point below code chunk for quick summary
For research, I'm trying to write a photometry program in python (I know there is software out there, but there's a specific reason I'm writing my own). I am using Anaconda with Python 3.6 and can get the FITS file image to render, but I want to be able to click on a point and perform photometry.
Basically I want to bind the image to a tkinter canvas and have a click event to return the location.
I've been looking at almost the exact same question here, but the key differences are that I'm using a FITS file and python 3.6 (which changes a lot of the features in that example)
My code thus far (using much of what that example showed) is:
import numpy as np
import matplotlib.pyplot as plt
from astropy.io import fits
import scipy as sp
import tkinter as tk
import PIL
hdulist = fits.open('00000039.sat_26624U.fit')
hdulist.info()
scidata = hdulist[0].data
histo = sp.histogram(scidata, 60, None, True)
display_min = histo[1][0]
display_max = histo[1][1]
pic = plt.imshow(scidata, cmap=plt.cm.gray, vmin=display_min, vmax=display_max, origin="lower")
#Try tk stuff
root = tk.Tk()
#setting up a tkinter canvas
frame = tk.Frame(root, bd=2, relief=tk.SUNKEN)
frame.grid_rowconfigure(0, weight=1)
frame.grid_columnconfigure(0, weight=1)
canvas = tk.Canvas(frame, bd=0)
canvas.grid(row=0, column=0, sticky=tk.N+tk.S+tk.E+tk.W)
frame.pack(fill=tk.BOTH,expand=1)
#Add image
hold = tk.PhotoImage(pic)
canvas.create_image(0,0,image=hold,anchor="nw")
#function to be called when mouse is clicked
def printcoords(event):
#outputting x and y coords to console
print (event.x,event.y)
#mouseclick event
canvas.bind("<Button 1>",printcoords)
root.mainloop()
hdulist.close()
Which shows the image but gives me an error at:
#Add image
hold = tk.PhotoImage(pic)
canvas.create_image(0,0,image=hold,anchor="nw")
That says:
TypeError: __str__ returned non-string (type AxesImage)
Main Point:
I can't get a FITS image to bind to a tkinter canvas. I don't know how to click that image and get the location of the mouse click. I want to be able to click a few points, get their locations, and use those locations to draw a few annuli.
I have plenty of other issues, but that's my main hang up right now. Eventually I will be trying to track them (move to the next picture and search roughly the same area until I find the object again, placing the annulus) and counting the pixels inside, but I can cross that bridge later (unless anyone has ideas now).
