debug pyproj

reference.gpx

 <?xml version="1.0" encoding="UTF-8"?>
-<gpx xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.topografix.com/GPX/1/0" version="1.0" creator="gpx.py -- https://github.com/tkrajina/gpxpy">
+<gpx xmlns="http://www.topografix.com/GPX/1/0" xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" creator="gpx.py -- https://github.com/tkrajina/gpxpy">
 <trk>
 <trkseg>
 <trkpt lat="48.4188" lon="-4.4725"></trkpt>

tst_proj.py

@@ -4,46 +4,44 @@
 # sudo apt install python3-gpxpy
 
 import gpxpy
-import gpxpy.gpx
 from pyproj import Proj, transform
 import numpy as np
 
-projMeter = Proj("+init=EPSG:2263",preserve_units=True)
+#projMeter = Proj("+init=EPSG:2154",preserve_units=False) # Lambert-93 - France 
+#projMeter = Proj("+init=EPSG:5627",preserve_units=False) # ED 50
+projMeter = Proj("+init=EPSG:32620",preserve_units=False) # UTM Zone 30
 projDegre = Proj("+init=EPSG:4326") # WGS84 in degrees and not EPSG:3857 in meters)
 
-gpx = gpxpy.gpx.GPX()
-# Create first track in our GPX:
-gpx_track = gpxpy.gpx.GPXTrack()
-gpx.tracks.append(gpx_track)
-# Create first segment in our GPX track:
-gpx_segment = gpxpy.gpx.GPXTrackSegment()
-gpx_track.segments.append(gpx_segment)
-
 # reference point "the flag"
 reference_lat = 48.4188
 reference_lon = -4.4725
-gpx_segment.points.append(gpxpy.gpx.GPXTrackPoint(reference_lat, reference_lon))
+reference_x,reference_y = transform(projDegre,projMeter,reference_lon,reference_lat)
+print (reference_x,reference_y,reference_lat,reference_lon)
+x = reference_x
+y = reference_y
+# reference point center of the rugby field
 reference_lat = 48.4185
 reference_lon = -4.4739
-gpx_segment.points.append(gpxpy.gpx.GPXTrackPoint(reference_lat, reference_lon))
-reference_x,reference_y = transform(projDegre,projMeter,reference_lat,reference_lon)
-
-fp = open("reference.gpx","w")
-fp.write(gpx.to_xml())
-fp.write("\n")
-fp.close()
-
+reference_x,reference_y = transform(projDegre,projMeter,reference_lon,reference_lat)
+print (reference_x,reference_y,reference_lat,reference_lon)
+dx = x - reference_x
+dy = y - reference_y
+distance = np.sqrt(dx*dx+dy*dy)
+print (dx,dy,distance)
+exit()
 
 gpx_file = open('tst_ensta_stadium_20210929.gpx', 'r')
 
+
+init = True
 gpx = gpxpy.parse(gpx_file)
 for track in gpx.tracks:
     for segment in track.segments:
         for point in segment.points:
             #print('Point at ({0},{1}) -> {2}'.format(point.latitude, point.longitude, point.elevation))
-            x,y = transform(projDegre,projMeter,point.latitude, point.longitude)
+            x,y = transform(projDegre,projMeter,point.longitude, point.latitude)
             lat,lon = transform(projMeter,projDegre,x,y)
-            #print (x,y,lat,lon)
+            print (x,y,lat,lon,point.latitude,point.longitude)
             dx = x - reference_x
             dy = y - reference_y
             distance = np.sqrt(dx*dx+dy*dy)