World Map & QGIS
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John Randolph
Feb 9, 2012, 6:51:59 AM2/9/12
to WorldMap users
Dear developers and WorldMappers,
First of all, thanks for this amazing tool! I think you're right to
see it as filling a very important niche!
I have a few questions, if I may.
ATTRIBUTES:
Am I right in thinking that (at this point) when you create a
shapefile layer in WorldMap, your attribute list is predefined and its
names cannot be changed? I see a menu of six or so fields, but I don't
see any way to elaborate on them or change them. Is that right?
QUERIES:
There's no querying function on WorldMap yet, right?
QGIS:
I am currently building shape files and attribute tables in QGIS. The
resulting shapefiles have for their projection data a .qpj rather than
a .prj file. Is there a work around to this, when trying to upload
this to WorldMap? I tried just renaming the extension .prj, but then
when I uploaded it I got gobbledygook -- a file that compressed to one
dot. (See my Russian 1808 Postal Network layer to see what I mean --
it's just a dot at Smolensk, when the actual shape file has a lot more
information).
Thanks so much for any information you can provide!
Best wishes,
John
First of all, thanks for this amazing tool! I think you're right to
see it as filling a very important niche!
I have a few questions, if I may.
ATTRIBUTES:
Am I right in thinking that (at this point) when you create a
shapefile layer in WorldMap, your attribute list is predefined and its
names cannot be changed? I see a menu of six or so fields, but I don't
see any way to elaborate on them or change them. Is that right?
QUERIES:
There's no querying function on WorldMap yet, right?
QGIS:
I am currently building shape files and attribute tables in QGIS. The
resulting shapefiles have for their projection data a .qpj rather than
a .prj file. Is there a work around to this, when trying to upload
this to WorldMap? I tried just renaming the extension .prj, but then
when I uploaded it I got gobbledygook -- a file that compressed to one
dot. (See my Russian 1808 Postal Network layer to see what I mean --
it's just a dot at Smolensk, when the actual shape file has a lot more
information).
Thanks so much for any information you can provide!
Best wishes,
John
John Randolph
Feb 9, 2012, 7:32:02 AM2/9/12
to WorldMap users
Okay, one question I figured out myself (sorry!): it turns out that
QGIS will produce a .prj file for you when it exports the ShapeFile.
QGIS will produce a .prj file for you when it exports the ShapeFile.
Ben Lewis
Feb 9, 2012, 10:03:47 PM2/9/12
to worldma...@googlegroups.com
Hi John,
Yes currently we are providing a preset set of attributes for layers one creates online. Eventually we plan to let people create their own data attribute structures.
You can query on a layer (the top most layer which is turned on) by using the search form at the bottom of the layer list on the left. The attributes which are searched against are configurable in the metadata form for the Layer (right click on layer -> About -> Share Layer -> Update description of this data -> scroll to the bottom of the metadata form.
With QGIS save out a shapefile. For creating a layer to upload to WorldMap, define the projection of the file as Geographic NAD83 (EPSG:4326). Other EPSG codes will work, but this is better tested than most.
- Ben
Yes currently we are providing a preset set of attributes for layers one creates online. Eventually we plan to let people create their own data attribute structures.
You can query on a layer (the top most layer which is turned on) by using the search form at the bottom of the layer list on the left. The attributes which are searched against are configurable in the metadata form for the Layer (right click on layer -> About -> Share Layer -> Update description of this data -> scroll to the bottom of the metadata form.
With QGIS save out a shapefile. For creating a layer to upload to WorldMap, define the projection of the file as Geographic NAD83 (EPSG:4326). Other EPSG codes will work, but this is better tested than most.
- Ben
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