Again all DEM data is processed top first, bottom last. With the logic
consequences for finding a matching
elevation and the draw order.
With the track filter it's a bit tricky indeed. QMS will start to search the
tabs for a canvas and if a DEM on
that canvas matches, the value is used. That is not perfect, I know. But I did
not want to have several GIS
workspaces attached to canvases as the original idea was to view your data on
different map views.
So far I never had a problem with that, as the DEM setup is the same for all
views. In contrary to maps
available DEM data is very limited. I have very good data for Bavaria from the
local authorities, Ferranti's
SRTM data for the Alps and EUDEM data for the rest of Europe. In this order for
every view.
So it's a bit confusing, but not really a big deal.
> DEM
>
> In the wiki docs says:
>
> *DEM files are handled by the topmost item fist, down to the bottom item
> last. Doing an elevation data query the first match will stop the query.
> Thus the topmost item wins. Doing hill shading or similar the item at the
> bottom will overlay all other items.*
>
> As with maps I found more intuitive if the item at the top overlays the
> others, and this has more coherence with the elavation data query where the
> topmost one wins.
>
> You can arrange the DEMs as you want in the different map views, so in the
> View1 a DEM could be the top one, and in the View2 another different DEM
> can be the top one, this is ok to manage the map view but brings another
> question, what about for tracks?
>
> When applying the elevation filter to replace the data with DEM values, you
> make it in a tab that has no relation with any mapview so I have doubts:
> wich DEM will be used to read the data?
> (In QLGT this was clear: the DEM added to the active map.)
------------------------------------------------------------------------------
Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
from Actuate! Instantly Supercharge Your Business Reports and Dashboards
with Interactivity, Sharing, Native Excel Exports, App Integration & more
Get technology previously reserved for billion-dollar corporations, FREE
http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk
_______________________________________________
Qlandkartegt-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/qlandkartegt-users
