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Rename xmet-sounding-graph to -plot; add ability to plot hodographs

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XANTRONIX 2025-03-03 10:43:18 -05:00
parent e3df02db87
commit 71c42cd1ec
2 changed files with 79 additions and 51 deletions
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51
bin/xmet-sounding-graph
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@ -1,51 +0,0 @@
#! /usr/bin/env python3
import argparse
import cairo
import shapely
from xmet.db import Database
from xmet.sounding import Sounding
from xmet.skew_t import SkewTGraph, SkewTLegend
IMAGE_WIDTH = 800
IMAGE_HEIGHT = 800
GRAPH_WIDTH = 800 - 128
GRAPH_HEIGHT = 800 - 128
parser = argparse.ArgumentParser(
description = 'Graph most recent valid sounding for location'
)
parser.add_argument('db', help='XMET SQLite3 database')
parser.add_argument('lat', help='Latitude')
parser.add_argument('lon', help='Longitude')
parser.add_argument('timestamp', help='Timestamp in YYYY-MM-DD HH:MM:SS (UTC)')
parser.add_argument('output', help='Output SVG file')
args = parser.parse_args()
db = Database.connect(args.db)
location = shapely.Point(float(args.lon), float(args.lat))
sounding = Sounding.valid_by_location(db, location, args.timestamp)
print(f"Graphing {sounding.station} sounding at {sounding.timestamp_observed}")
skew_t = SkewTGraph(GRAPH_WIDTH, GRAPH_HEIGHT)
with cairo.SVGSurface(args.output, IMAGE_WIDTH, IMAGE_HEIGHT) as surface:
cr = cairo.Context(surface)
cr.set_source_rgb(1, 1, 1)
cr.rectangle(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT)
cr.fill()
skew_t.draw(cr, 64, 64, sounding)
cr.set_source_rgb(0, 0, 0)
cr.rectangle(64, 64, GRAPH_WIDTH, GRAPH_HEIGHT)
cr.stroke()
SkewTLegend.draw_for_graph(cr, skew_t, 64, 64)

79
bin/xmet-sounding-plot Executable file
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@ -0,0 +1,79 @@
#! /usr/bin/env python3
import argparse
import cairo
import shapely
from xmet.db import Database
from xmet.sounding import Sounding
from xmet.skew_t import SkewTGraph, SkewTLegend
from xmet.hodograph import Hodograph
IMAGE_WIDTH = 800
IMAGE_HEIGHT = 800
GRAPH_WIDTH = 800 - 128
GRAPH_HEIGHT = 800 - 128
def plot_skew_t(sounding: Sounding, output: str):
print(f"Plotting Skew-T chart of {sounding.station} sounding at {sounding.timestamp_observed} to {output}")
with cairo.SVGSurface(output, IMAGE_WIDTH, IMAGE_HEIGHT) as surface:
cr = cairo.Context(surface)
cr.set_source_rgb(1, 1, 1)
cr.rectangle(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT)
cr.fill()
skew_t = SkewTGraph(GRAPH_WIDTH, GRAPH_HEIGHT)
skew_t.draw(cr, 64, 64, sounding)
cr.set_source_rgb(0, 0, 0)
cr.rectangle(64, 64, GRAPH_WIDTH, GRAPH_HEIGHT)
cr.stroke()
SkewTLegend.draw_for_graph(cr, skew_t, 64, 64)
def plot_hodograph(sounding: Sounding, output: str):
print(f"Plotting hodograph of {sounding.station} sounding at {sounding.timestamp_observed} to {output}")
with cairo.SVGSurface(output, IMAGE_WIDTH, IMAGE_HEIGHT) as surface:
cr = cairo.Context(surface)
cr.save()
cr.set_source_rgb(1, 1, 1)
cr.rectangle(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT)
cr.fill()
cr.restore()
cr.set_source_rgb(0, 0, 0)
cr.rectangle(64, 64, GRAPH_WIDTH, GRAPH_HEIGHT)
cr.stroke()
hodograph = Hodograph(GRAPH_WIDTH, GRAPH_HEIGHT)
hodograph.draw(cr, 64, 64, sounding)
parser = argparse.ArgumentParser(
description = 'Graph most recent valid sounding for location'
)
parser.add_argument('--skew-t', type=str, help='Plot a Skew-T chart to the specified SVG file')
parser.add_argument('--hodograph', type=str, help='Plot a hodograph to the specified SVG file')
parser.add_argument('db', help='XMET SQLite3 database')
parser.add_argument('lat', help='Latitude')
parser.add_argument('lon', help='Longitude')
parser.add_argument('timestamp', help='Timestamp in YYYY-MM-DD HH:MM:SS (UTC)')
args = parser.parse_args()
db = Database.connect(args.db)
location = shapely.Point(float(args.lon), float(args.lat))
sounding = Sounding.valid_by_location(db, location, args.timestamp)
if args.skew_t is not None:
plot_skew_t(sounding, args.skew_t)
if args.hodograph is not None:
plot_hodograph(sounding, args.hodograph)