[PATCH] Enhanced 'Color tracks by velocity' setting

[lard]

The 'Color tracks by velocity' setting works well with car based GPS tracks, but is less useful with bicycle or foot based tracks as the colours assigned to given velocities are fixed in a range appropriate for cars, and this is too fast to generate noticeable variations in colour for other modes of transport.

I would like to see the ability to either stretch the colour range over the range of velocities found in a track, or manually specify the min and max velocity over which the colour range is distributed.

[Schusch]

nice idea - i miss that, too

[xeen]

Adds pref to GPX Layer to allow speed coloring tuning for different speeds

[xeen]

Adds UI for speed coloring tuning to the prefs

[xeen]

The first patch adds a pref that allows to tune the color drawing for different speeds. A high value will work like now (for cars), lowering the value will stretch low speeds across the color range, thus make "coloring by velocity" work when walking. Higher speeds or off limit values will render purple.

The 2nd patch adds this pref to the pref dialog using a combo box (car, bicycle, foot). Hmm… it would be a sane idea to add a <=0 check in GpxLayer.java in case someone plays with the advanced prefs in order to prevent an error popping up.

[anonymous]

Applied in r1283. Please update sources before making patches.