Hello,
I think that I found a bug in track statistics code.
Steps to reproduce the problem in viking built from freshly downloaded code:
1. open a gpx file with a single track that has some valid trackpoints;
a TRW layer is created.
2. in the same layer draw a route.
3. in layers panel, mark the track as invisible, keep the route visible.
4. right-click the top layer, from menu select "Statistics".
5. toggle "Include Invisible Items" checkbox at the bottom of the dialog
window.
6. observe values in "Average length" and "Max speed" category - when
the checkbox is cleared, the two values are the same, with the same unit.
I think that the problem can be traced to this piece of code in
src/viktrwlayer_analisis.c, starting in line 314:
default:
//VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
if ( ts.max_speed > 0 )
g_snprintf ( tmp_buf, sizeof(tmp_buf), _("%.2f km/h"),
(double)VIK_MPS_TO_KPH(ts.max_speed) );
gtk_label_set_text ( GTK_LABEL(content[cnt++]), tmp_buf );
When only visible items are included in statistics (i.e. only the route,
but not the track), ts.max_speed is zero and tmp_buf is not updated
properly, it still contains contents that has been set few lines earlier.
Best regards,
Kamil
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