Hi, Fine, I could make is work with this knowledge. Is it so that the only documentation right now is in the RFC and main documentation page http://mapserver.org/documentation.html does not know about dynamic heatmaps yet? Might be worth having an own entry in the Output section.
I was trying to normalize my source data. There seems to be some limited possibilities for doing that with source layer and kerneldensity layer: - In source LAYER the attribute to be used for weighting can be selected with "STYLE SIZE [attribute] END. The [attribute] is selected as it stands and no expressions can be used in STYLE - SIZE - In the kerneldensity LAYER " processing "KERNELDENSITY_NORMALIZATION" can be used for normalizing data by a multiplication factor. - For more advanced normalization it must be done in the data because for example expression [POPULATION]/[AREA] can't be resolved on-the-fly because expressions are not supported in STYLE - SIZE. Have I understood right? With some sources of the point layer data there could perhaps be a workaround by computing new field on-the-fly inside LAYER - DATA: "select geometry, population/area as popar from source" and by using then "popar" as size attribute. I made some trials with connnectiontype OGR but it was not trivial to make my selection to work from a shapefile. -Jukka Rahkonen- thomas bonfort wrote: > Jukka, > All the functionality is tested in msautotest, the KERNELDENSITY_ATTRIBUTE is > an error is the RFC. To use an attribute use STYLE SIZE [attribute] END in > your > linked vector layer. > > -- > thomas > > On 23 October 2014 06:55, Rahkonen Jukka (Tike) > <jukka.rahko...@mmmtike.fi> wrote: > > Hi, > > > > I have tried to use attribute based weights in heatmaps as in RFC 108 > > example http://mapserver.org/development/rfc/ms-rfc-108.html > > processing "KERNELDENSITY_ATTRIBUTE=POP2010" > > > > However, this processing option does not seem to have any affect. It is not > used in the MS autotest mapfile and I wonder if it has been implemented at all > yet. Does somebody know? > > > > -Jukka Rahkonen- > > _______________________________________________ > > mapserver-users mailing list > > mapserver-users@lists.osgeo.org > > http://lists.osgeo.org/mailman/listinfo/mapserver-users _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
