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[mkgmap-dev] option --show-profiles and DEM

From osm@pinns osm at pinns.co.uk on Thu Jan 11 08:10:30 GMT 2018

Hi Gerd

I've come to the same conclusion looking  and was quite confused when 
Frank introduced his dem builder:

I too noticed  the tdb DEM flag was always set eventhough there was no dem.


On 11/01/2018 08:03, Gerd Petermann wrote:
> Hi all,
> the help says
> --show-profiles=1
> 	Sets a flag in tdb file which marks set mapset as having contour
> 	lines and allows showing profile in MapSource. Default is 0
> 	which means disabled.
> I've tried this with MapSource. My findings:
> The option is not related to contour lines, those are always displayed and height is shown when you select one.
> I found two effects of show-profiles=1:
> 1) The button "Show Profile..." in the Route Properties popup is enabled even if no DEM data is available.
> Without DEM data this button is of no use, the displayed profile is a straight line at height 0.
> 2) With DEM data available Mapsource displays the height in the status line when you hover over a hill-shaded area
> with valid data.
> The button "Show Profile..." in the Route Properties popup is always enabled when DEM data is available.
> My conclusion:
> The option is useless without DEM data and with DEM data it should default to --show-profiles=1
> In other words: I think the option should be removed and the flag should be set depending on the DEM data.
> Comments?
> Gerd
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