Hi - perhaps you do not have enough geospatial data in your index to
generate a larger image? Try setting the facet.heatpmap.gridLevel to
something higher like 4.
I've run queries like:
q=insert whatever
herewt=jsonindent=truefacet=truefacet.heatmap=geofacet.heatmap.gridLevel=4facet.heatmap.format=ints2Drows=0facet.heatmap.maxCells=35554432
I'm not familiar with the notation you have
facet.heatmap=store_geohash. What is that?
I'm very interested in working with heatmaps and have tried integrating
the results from Solr with GeoTools. I have access to a very sizable
index with geospatial content in it, and I've been able to generate
images like this:
http://lovehorsepower.com/images/Solr/AllDataSinceJan01_2015_Map.jpg
The above is a 1024x1024 raster.
Doing a geospatial filter query around the UK results in an image like this:
http://lovehorsepower.com/images/Solr/TwitterDataOneDayUKGeoSearchMap.jpg
I would love to be able to apply some heatmap visualization to this.
Anyone have any ideas on what tools to use?
Thank you.
-Joe
On 6/13/2015 4:29 PM, William Bell wrote:
OK. I was able to get a PNG - but it looks tiny and a blob. Not sure how to
use it.
echo iVBORw0KGgoNSUhEUgAAACAgCAYAAABzenr00UlEQVR42mNg
YGD4P8B41AEwBuNAOoD7PwMbP5BmGygHyP9nENf5z8C45D8Dk+ZAp4FNA+
wA5pn/GZfz/GeQzv3PkL3hP4Pw+f8MLGuBctl0cgCv1n+Gton/GSUs/jPGL/jP+
uvCf467IAdMoFcUyPxnaS78zzCN6T+TKMt/5g+T/jNJraZzOXBc6T/D9bv/
mfp//2f8GDqABZFCzX/GQh86OED1338Grm34FVrMoEcITKdDt
msZrYxGHTDqAFIdwDgaBaMOGHXAqANGHTC8HQAAQf8YdbR5KkIASUVORK5CYII= |
base64 --decode test.png
Very strange.
Maybe I need to zoom in?
On Sat, Jun 13, 2015 at 2:18 PM, William Bell billnb...@gmail.com wrote:
How do you use the heatmaps feature to show the PNG or use the int2D to
show the heatmap easily just for testing?
http://localhost:8983/solr/select?q=*%3A*wt=jsonrows=0indent=truefacet=truefacet.heatmap=store_geohashfacet.heatmap.format=png
{
- responseHeader:
{
- status: 0,
- QTime: 163,
- params:
{
- facet.heatmap.format: png,
- q: *:*,
- facet.heatmap: store_geohash,
- indent: true,
- rows: 0,
- wt: json,
- facet: true
}
},
- response:
{
- numFound: 2664396,
- start: 0,
- docs: [ ]
},
- facet_counts:
{
- facet_queries: { },
- facet_fields: { },
- facet_dates: { },
- facet_ranges: { },
- facet_intervals: { },
- facet_heatmaps:
{
- store_geohash:
[
- gridLevel,
- 2,
- columns,
- 32,
- rows,
- 32,
- minX,
- -180,
- maxX,
- 180,
- minY,
- -90,
- maxY,
- 90,
- counts_png,
-
iVBORw0KGgoNSUhEUgAAACAgCAYAAABzenr00UlEQVR42mNgYGD4P8B41AEwBuNAOoD7PwMbP5BmGygHyP9nENf5z8C45D8Dk+ZAp4FNA+wA5pn/GZfz/GeQzv3PkL3hP4Pw+f8MLGuBctl0cgCv1n+Gton/GSUs/jPGL/jP+uvCf467IAdMoFcUyPxnaS78zzCN6T+TKMt/5g+T/jNJraZzOXBc6T/D9bv/mfp//2f8GDqABZFCzX/GQh86OED1338Grm34FVrMoEcITKdDtmsZrYxGHTDqAFIdwDgaBaMOGHXAqANGHTC8HQAAQf8YdbR5KkIASUVORK5CYII=
]
}
}
}
--
Bill Bell
billnb...@gmail.com
cell 720-256-8076
