1

I don't know so much GIS specific terminology, so I am sorry for using the wrong words. I'll try to make my point clear by first describing what I want to achieve and then what I tried.

[goal] I am working with tweets that I have stored in a csv file. Now I want to visualise them on a map. I want to sort them according to their date (or some other column in my file). So I want to have a way to display only tweets from a certain day or date or some other property. Also, because there are many tweets for each property, I want them to be clustered. So I can see from the point's colour how many are at the same spot instead of having to zoom in. I need this to be nicely displayed on a static picture.

[what I did] I loaded my .csv file and categorized it according to date. This worked, so now I have a layer with all tweets but I can switch on/off each date. They are not stored in a different layer, but as something else. I don't know how to call this. Then I tried the Heatmap Plugin, which I thought is what I need. But this only seems to work on normal layers. So I cannot visualise my categorized data in different parts, just the full layer. I also tried to categorise the heatmap somehow, but couldn't find out how.

I hope you can help me to achieve my goal. Of course I could create different .csv files for all the properties that I want to sort my data for, but that seems stupid. I think GIS should be able to do that easily.

By the way, I use QGIS 2.10.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.