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1. Re: lock the zoom level for tableau map
Toby ErksonFeb 28, 2014 8:46 AM (in response to muthu.krishnan)
Just curious why you want to do this?
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2. Re: lock the zoom level for tableau map
Matt LuttonFeb 28, 2014 8:55 AM (in response to muthu.krishnan)
I don't think you can prevent zooming/panning from happening altogether with any built-in methods, but you can at least hide the zoom controls: Zoom Controls
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3. Re: lock the zoom level for tableau map
allan.walker.0 Feb 28, 2014 10:28 AM (in response to muthu.krishnan) -
4. Re: lock the zoom level for tableau map
Shawn Wallwork Feb 28, 2014 10:58 AM (in response to muthu.krishnan)The short answer is no. You can 'Hide the Zoom Controls', but the double-click zoom-in and the double-click-shift zoom out work without the controls showing so your users will still be able to zoom in and out without controls. There is an Idea out there asking for this feature request. It's several years old so it's probably either on the road map or has been decided against, but it still might be worth a vote.
--Shawn
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5. Re: lock the zoom level for tableau map
allan.walker.0 Feb 28, 2014 11:03 AM (in response to Shawn Wallwork)It really depends Shawn, whether you want to control the background map or whether you want to control your foreground analysis.
It's entirely possible not to use a background map at all, and shove everything into the foreground, which is what you are seeing above: i.e. no background map and just filter the data for the "level of zoom", i.e. the lat/longs and the data you want to visualize.
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6. Re: lock the zoom level for tableau map
Shawn Wallwork Feb 28, 2014 11:25 AM (in response to allan.walker.0)Here we go again. Mathu ask a simple (beginner?) question:
"Can we lock the zoom level for tableau map??"
I don't consider a WMS server map to be a Tableau map. It's a different animal altogether, and certainly a more advanced level of Tableau understanding than his question implies.
Just sayin'....
--Shawn
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7. Re: lock the zoom level for tableau map
allan.walker.0 Feb 28, 2014 11:27 AM (in response to Shawn Wallwork)Shawn,
You didn't read my post. That image isn't using a map. It's all just polygons and lines.
Allan
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8. Re: lock the zoom level for tableau map
Shawn Wallwork Feb 28, 2014 11:46 AM (in response to allan.walker.0)Are we reading the same post? Where did you say that's just polygons and lines?
--Shawn
PS: Did you forget to post a link to a blog or something?
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9. Re: lock the zoom level for tableau map
Matt LuttonFeb 28, 2014 11:46 AM (in response to Shawn Wallwork)
+1 I don't see it either.
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10. Re: lock the zoom level for tableau map
Shawn Wallwork Feb 28, 2014 12:06 PM (in response to allan.walker.0)OK, I can now see how you might have thought you implied this wasn't a map (sort of hard to believe that it isn't a map). And I can also now see how this could be a solution for him. A bit of a painful solution, unless he's already familiar with QGIS or some other mapping software. And you might actually be right that his need to suppress zooming is worth taking the long way around. So I have to admit that my calling you out for posting a complex, complicated solution was premature.
Sorry about that Alan.
Cheers,
--Shawn
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11. Re: lock the zoom level for tableau map
allan.walker.0 Feb 28, 2014 1:10 PM (in response to Shawn Wallwork)No worries Shawn.
I didn't explain myself fully, which is a failing of mine.
When I talk about "background maps" I'm referring to stuff like UM, or WMS, or Mapbox, or whatever.
When I'm talking about foreground analysis I'm talking about a Tableau mark type.
What you are seeing there is a large PostGIS table populated with Tableau Ready mark type formats:
OSM Land Polys,
OSM Ocean Polys,
IMPOSM Metro Extracts (waterareas) Polys and (waterways) Lines
NYC "Lion" Lines
NYC DOITT Building footprint polys
NYC MTA Subway GTFS Lines
All merged and re-projected to EPSG:4326: filtered on lat/long. Dual-axis, mark type 1 is poly, mark type 2 is line. The "trick" is path order, as Joe Mako famously said, Tableau (foreground analysis) mapping is just a scatterplot.
This has a couple of advantages. I don't need to connect to a background map (for example, the Server DBA doesn't allow the ports open to UM), I can style how I want, and control the zoom.
However: that all said, it is a VERY inefficient method. All of the above layers should just be layer groups as SHP files, with the foreground analysis being performed at run-time. That's next, because I need to join over to some more lovely opendata.
It's just when someone says "nope, can't be done": I've found with Tableau, almost anything is possible, and there is usually a solution.
Best Regards,
Allan
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12. Re: lock the zoom level for tableau map
allan.walker.0 Mar 6, 2014 8:55 AM (in response to Shawn Wallwork)Shawn Wallwork wrote:
I don't consider a WMS server map to be a Tableau map.
Just sayin'....
--Shawn
100% WMS. 100% Open Source. Background map layers using Ubuntu/Geoserver/AtlasStyler.
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13. Re: lock the zoom level for tableau map
Shawn Wallwork Mar 6, 2014 9:19 AM (in response to allan.walker.0)What no voice over?
Nicely done Allan.
Cheers,
--Shawn
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14. Re: lock the zoom level for tableau map
allan.walker.0 Mar 6, 2014 9:44 AM (in response to Shawn Wallwork)Do people want to hear my dulcet Scottish tones?
Best Regards,
Allan