[OSM-talk] Questions from a newbie on editing

[Immanuel Scholz]

Hi,

Well, I'll try to answer some of your questions..


[OSM Applet]
> * Most or all of the big trace I did yesterday (#3351, 1482 points) does
> not show up. I zigzagged a lot around the residential streets, all of
> which shows up when I load the GPX into JOSM.

Sounds like a cache problem of the GPX layer.. AFAIK, the caches get not
invalidated correctly sometimes, so the changes pop up after about 48
hours...

> * The name of one of the streets I tagged (Clifton Suspension Bridge)
> doesn't show up.

Hm, that is strange.. sounds like a bug to me. Can you fire a trac ticket
together with an concrete url of the editing are? (lat/lon + zoom)


> First impressions of JOSM:
> * I could not download an area of interest using the map UI in the
> File/Open dialog.

You tried downloading an URL in File/Open? That's what the "Download"
dialog was meant for. :-D

Have you watched my tutorial video? I explain the download dialog there.


> The scroll & zoom tool just magnifies the minimal-res world image with a
> mysterious algorithm.

I don't understand you. You mean zooming with the zoom mapmode (the
topmost button selected on the left) does not work as expected? You have
to drag an area in this mode to zoom into.

Or do you say that the auto-zoom feature does not work for you?


> * Downloading based on a URL [2] omits my Clifton Suspension Bridge that
> shows up in the online applet. Is it supposed to show me other people's
> traces too?

If you mean by "other peoples traces" the raw gps tracklogs (in the
applet: yellow dots, in JOSM: small gray dots), then you have to check
"Open as raw gps data" in the download dialog.

(I know, this split of download modus sucks and will be changed soon..)


> * When I load a GPX from the hard drive it looks pretty but seems
> squashed vertically as if the coordinates are not adjusted for latitude.

If it looks squashed compared to the online applet, then you should change
the projection mode in the preferences settings to Mercator. The default
setting is raw EPSG:4236.


[OSM Applet, I think]
> * Is it possible to have only one trace, or my own traces, as the
> background layer for editing? As I can't filter traces, I can't tell
> whether my big trace is partially loaded into OSM.
> * Can one check the time or contributor of a particular yellow trace dot?
> * Is there a bookmarking facility for the online applet? Getting back to
> the same area is a pain.

Unfortunatly: No to all. (Not yet.) If a feature request for this already
exist in trac, you could increase its priority. Else add one. ;-)

In JOSM you can import different gps tracklogs as differnt layers and set
individual colors to differentiate them. You can download tracklogs of
other peoples by using www.openstreetmap.org/traces. But all this isn't
very automated yet.. ;-(


> Wish list:
>
> * A "playback" feature of any GPS trace, with fast forward, a calendar
> and an analogue clock.

Nice idea ;-). Can you add a trac item for this, please?


Ciao, Imi