[Qgis-user] Organic heatmap outter contour, and making it look better

[Marcelo de Moraes Serpa]

Ops, forgot to include the reference heatmaps here. The goal is to get it
to look +- like the ones below:

*
http://www.gislounge.com/wp-content/uploads/2014/08/fortune1000-heat-kernel-us.png
and/or
* http://i.stack.imgur.com/DvVyU.png

Cheers,

-- Marcleo.

On Fri, Jul 24, 2015 at 9:58 PM, Marcelo de Moraes Serpa <
celoserpa at gmail.com> wrote:

> Thanks to @Neumann, @Abdishakur and @Richard from my previous thread, the
> info was valuable! I did reply the post with some additional questions it
> but for some reason the mailing list server bounced my messages. They are
> not so relevant anymore, but if you get them, I'd still want to know your
> opinions.
>
> Anyway, I played a couple of hours today with the data I have and with the
> interpolation and countours features of QGis (which seems to use Gdal under
> the cover, which was, for me, a quite interesting finding! That means that
> any result I get with QGis could easily be scriptable, which is  a must,
> since it will eventually be used in a web app pipeline) and I got this:
>
>
> https://www.dropbox.com/s/9ig76n1kcxoo76w/Screenshot%202015-07-24%2021.39.00.png?dl=0
>
> It still doesn't look quite like I want*[0] but I'm getting there. The
> countours feature seems to be what I want. The numbers, by the way, is
> revenue per day in a certain area. The colors are not quite right (too many
> of them) so I need to tweak the styles, I think, and I don't want the
> actual countours lines to appear. They all seem to be simple problems to
> solve, but if you know how to do them, I'd love to know!
>
> What seems to be more complicated, is how to create an organic feeling to
> the map. I don't want it to be a square, like this, I want the edge to
> follow the outter points. Here's what I mean:
> https://www.dropbox.com/s/k6na766a4ox1ngg/Screenshot-2015-07-15-21.47.55.jpg?dl=0.
> Does anyone have any idea of to do this?
>
> Thanks!
>
> -- Marcelo.
>
>
>
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