[Xastir] 2008 Tiger Map edge.dbfawk
Tom Russo
russo at bogodyn.org
Wed Apr 29 11:41:54 EDT 2009
On Wed, Apr 29, 2009 at 09:28:09AM -0500, we recorded a bogon-computron collision of the <wa0tjt at gmail.com> flavor, containing:
> The mystery continues! I've posted two screen shots of my Xastir
> running, one at zoom level 128 the other at level 151. The 128 level
> really is pretty nice, especially note the smaller roads how they are
> grayed out. Now compare them to the 151 level how the same roads are
> now in black.
>
> http://kaiserklan.com/snapshot_128.png
> http://kaiserklan.com/snapshot_151.png
>
> I can not find the MTFCC=S level that controls this, nor can I figure
> out my original question how to drop these smaller roads off the map
> completely above 150 zoom.
I think the issue is that the edges and a second file both contain shapes
for the same road. This was something I worked out with Dale a week or two
ago. This is why the roads change color --- one map is drawn on top of the
other, and when the upper one stops being drawn the lower one starts being
visible.
I believe that the "tabblock" file is the one with the duplicate shapes. Thing
is, I believe it also has different MTFCC codes for them, because it is using
those lines for different purposes (boundaries of tabulation blocks or
something like that).
I'm not clear on what value the tabblock file has, but the duplication of
features is confusing to the map user in Xastir. Try turning off the tabblock
files for your area and see if it gets you the behavior you want. If tabblock
contains some features you really want to see, you'll have to figure out
how to tweak *its* dbfawk file to hide the features you want to go away at
high zooms.
Trying to debug dbfawk files while viewing multiple shapefiles at once is the
path to madness. What you want to do when working on a dbfawk file is to
deselect all maps in the map chooser except the one associated with the dbfawk
you're debugging. In this case, the presence of identical shapes in multiple
files completely confuses the issue.
>
> On Apr 28, 2009, at 1:00 PM, Tom Russo wrote:
>
> > On Tue, Apr 28, 2009 at 12:55:11PM -0500, we recorded a bogon-
> > computron collision of the <wa0tjt at gmail.com> flavor, containing:
> >> Renaming doesn't seem to have had any effect. I renamed, then
> >> reindexed all maps but I still have all the roads that should not be
> >> showing above level 150 showing up at all levels. I tried closing
> >> Xastir, and even rebooting, hmmmm!
> >
> > Do you have "Enable Map Levels" turned on?
> >
> > See Map->Enable Map Levels. If it's not checked, it should be.
> > Unchecked it
> > will always display all shapes in a shapefile irrespective of zoom
> > level.
> >
> >> On Apr 28, 2009, at 11:14 AM, Dick Repasky wrote:
> >>
> >>>
> >>> I think that the problem may be that the dbfawk file is misnamed in
> >>> the zip
> >>> distro. Try renaming the file to edges.dbfawk. That worked for me.
> >>>
> >>> Dick, KC9JLU
> >>>
> >>>
> >>> Keith Kaiser wrote:
> >>>> I've got something wrong I just don't understand...
> >>>>
> >>>> This is a snipit from the edge.dfbawk file, please note the types
> >>>> of
> >>>> roads (Limited Access, secondary, local, 4WD, Freeway access,
> >>>> walkway,
> >>>> alley, bike, road median). So where are the interstate highways,
> >>>> state
> >>>> highways, etc.?
> >>>>
> >>>> Also, setting these display_level values had no effect on the map
> >>>> display, they made no changes at all. I still have way too much
> >>>> detail
> >>>> at higher zoom levels. What am I doing wrong? Do I need to have the
> >>>> details in map chooser set in some special way? Currently they are
> >>>> set
> >>>> (mostly) like this; max zoom = 500, min zoom = -, fill = auto,
> >>>> automap =
> >>>> yes
> >>>>
> >>>> Help!
> >>>>
> >>>> ....
> >>>> # Limited access road
> >>>> /^MTFCC=S11/ {lanes=4; color=11; display_level=64; label_level=64;
> >>>> font_size=3; next}
> >>>> # secondary road
> >>>> /^MTFCC=S12/ {display_level=150; lanes=3; color=8; label_level=75;
> >>>> font_size=2; next}
> >>>> # local road
> >>>> /^MTFCC=S14/ {display_level=150; label_level=16; color=48; lanes=1;
> >>>> next}
> >>>> # 4WD off-road trail
> >>>> /^MTFCC=S15/ {lanes=1; color=4; display_level=32; font_size=1;
> >>>> next}
> >>>> # Freeway access / service drive
> >>>> /^MTFCC=S16/ {color=11; display_level=64; next}
> >>>> # walkway / stairway
> >>>> /^MTFCC=S17[12]/ {lanes=1; color=12; pattern=2; display_level=32;
> >>>> next}
> >>>> # alley / private road
> >>>> /^MTFCC=S17[34]/ {lanes=1; color=40; pattern=2; display_level=64;
> >>>> next}
> >>>> # bike / bridle path
> >>>> /^MTFCC=S18/ {lanes=1; color=40; pattern=2; display_level=64; next}
> >>>> # road median
> >>>> /^MTFCC=S20/ {lanes=1; color=40; pattern=2; display_level=64; next}
> >>>> ....
> >>>>
> >>>> 73's
> >>>> Keith Kaiser
> >>>> wa0tjt at gmail.com
> >>>>
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> Xastir mailing list
> >>>> Xastir at lists.xastir.org
> >>>> http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
> >>>>
> >>> _______________________________________________
> >>> Xastir mailing list
> >>> Xastir at lists.xastir.org
> >>> http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
> >>
> >> 73's
> >> Keith Kaiser
> >> wa0tjt at gmail.com
> >>
> >>
> >>
> >> _______________________________________________
> >> Xastir mailing list
> >> Xastir at lists.xastir.org
> >> http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
> >
> > --
> > Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/
> > Tijeras, NM QRPL#1592 K2#398 SOC#236 http://kevan.org/brain.cgi?DDTNM
> > In some cultures what I do would be considered normal.
> > -- Ineffective daily affirmation
> >
> > _______________________________________________
> > Xastir mailing list
> > Xastir at lists.xastir.org
> > http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
>
> 73's
> Keith Kaiser
> wa0tjt at gmail.com
>
>
--
Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/
Tijeras, NM QRPL#1592 K2#398 SOC#236 http://kevan.org/brain.cgi?DDTNM
In some cultures what I do would be considered normal.
-- Ineffective daily affirmation
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