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Hi,
I have a dataset that included UK Post Codes, Longitude / Latitude Codes and Unitary Authority codes. I need to display this data on a polygon map rather than point map based on Post Codes.
I have imported the UK KML file into my app - but unsure on how this joins to my dataset.
Ideally I need to group my information by Unitary Authority areas :
Does anyone have any pointers or example app of UK polygon maps?
Many thanks for any help,
TJM
Hi tjm,
basically, you need to find the common field between the KLM file and your data set. If the KLM file contains Unitary Authority Areas, then your own data needs to be mapped to the same codes or names. You might have to load a map that associates the Post Codes with the Unitary Authority Areas.
Once the association is created, the rest is fairly straightforward - you simple create an area map.
cheers,
Oleg Troyansky
Upgrade your Qlik development skills with my book QlikView Your Business: An Expert Guide to Business Discovery with QlikView and Qlik Sense
Hi tjm,
basically, you need to find the common field between the KLM file and your data set. If the KLM file contains Unitary Authority Areas, then your own data needs to be mapped to the same codes or names. You might have to load a map that associates the Post Codes with the Unitary Authority Areas.
Once the association is created, the rest is fairly straightforward - you simple create an area map.
cheers,
Oleg Troyansky
Upgrade your Qlik development skills with my book QlikView Your Business: An Expert Guide to Business Discovery with QlikView and Qlik Sense
Thanks!!!
One last thing, My Map is showing the whole of the UK when I only have data relating to a small area. Is it possible to limit how much of the map is displayed or can it zoom to the correct areas?
Hmm... usually the map only shows the available ("possible") points and areas. Maybe you have some data for the "borderline" areas - that would cause the whole map to be displayed. I'm not sure what else could be wrong.
Hi,
Could it be that I'm bringing the whole of the UK KML codes as a joined lookup? Whereas my dataset is only for a few areas
Maybe... in this case, use LEFT KEEP or WHERE EXISTS() in the process of loading the KML data, to reduce the data only to the available areas.
Hi Tim
You should be able to untick a check box against the dimension of the Map object so that nulls are not included.
Then if you don't have data for locations in the KML file they should be ignored and the map will automatically zoom in to just cover those locations with data (whatever your measure is).
You also have to have auto-zoom ticked for that, but it is by default.
Hope that helps?
Please confirm if it does by marking this response as being the correct answer or helpful.
Thanks
Richard