I'm a novice programmer. I have a decent understanding of algorithms but I
don't have a lot of computer science/software engineering experience. As a way
to help me learn, I've begun a coordinate geometry program similar to the COGO
program developed years ago at MIT. Currently, I store the points in a
dictionary in the format point_number : [North, East]. I eventually will add a
Z component to the points and possibly a description after I get enough of the
horizontal geometry worked through. I would like to be able to save the point
table so that I can have multiple projects. My main python script is below. It
reads in a text file that contains commands to create/calculate the location of
the various points. My question is what is a good method to store the point
data outside of python? I eventually will also add the capability to define a
baseline that consists of multiple points with some attributes to define
relative locations along the baseline (stationing).
I use enthought canopy express with python 2.7.11 on windows 10 64 bit.
""" Coordinate geometry program """
import sys
from store_point import store_point
from clear_points import clear_points
from dump_points import dump_points
from redefine import redefine
from dist import dist
from locate_azimuth import locate_azimuth
from locate_bearing import locate_bearing
from locate_line import locate_line
from line_line_int import line_line_int
from parallel_line import parallel_line
from arc_line_pts import arc_line_pts
from divide_line import divide_line
try:
infile = open(raw_input("Enter input file name; name.txt:"),'r')
except:
print "Invalid filename"
exit()
pt_table = {}
cmd_table = {"5":store_point, "7":clear_points, "8":dump_points,
"9":redefine, "10":dist, "11":locate_azimuth,
"12":locate_bearing,
"15":locate_line, "18":parallel_line,
"19":line_line_int, "22":arc_line_pts, "40":divide_line}
count = 0
for line in infile:
#print line
args = line.split()
cmd = args.pop(0)
if cmd in cmd_table:
func = cmd_table[cmd]
func(pt_table, *args)
infile.close()
Thanks,
Colby
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