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GIScience
OpenStreetMap History Data Analysis Framework
opened by @nb152 In our last osm data quality meeting, we realized that it would be useful to able to calculate the ratio between two groups of objects e.g. the...
At many places serializable classes do not specify a serialVersionUID. We have to decide what we want to do with this. Bloch (Effective Java, Ch. 11) has a strong opinion...
Like #91 we use as static analyses to check for code that is not covered by unit-tests. Results can be seen here: https://reports.ohsome.org/oshdb/0.5.0-SNAPSHOT_master/204_c11a8e02/jacoco/ - [ ] oshdb - [ ]...
Thought experiment: You find an interesting pattern in the OSM data (e.g. something like this: v), and want to investigate it deeper. Often it would be beneficial to write a...
**Problem** OSHDB chose slf4j as abstraction-layer with simple-logger as default framework for logging. Currently the following error-message is displayed when initializing an `OSHDBIgnite`: ``` Apr 25, 2019 10:21:50 AM java.util.logging.LogManager$RootLogger...
follow up from #272: > can the optimization of _“using `PreparedGeometry.intersects` to reduce expensive intersection calls”_ be applied in the "regular" cell-iterator also? currently, the cell iterator performs (fast) bbox...
A Class that takes OSHDBContributions returns more detailed information like the type of tagChange or memberlistChange etc. spin-off from https://gitlab.gistools.geog.uni-heidelberg.de/giscience/big-data/ohsome/oshdb/issues/118 see: https://gitlab.gistools.geog.uni-heidelberg.de/giscience/big-data/ohsome/oshdb/issues/120 Helpful Methods: - [X] `evaluateTags` to get a...
There's already [_some_ functionality](https://docs.ohsome.org/java/oshdb/0.5.10/aggregated/org/heigit/bigspatialdata/oshdb/api/mapreducer/MapReducer.html#osmTag(java.lang.String,java.util.regex.Pattern)) in the OSHDB to filter by OSM tags using regular expressions. But the current implementation does not work on distributed backends (Ignite) because of the non-serializable...
Currently, when querying large, but very sparse multipolygons as areas-of-interest, it can happen that a lot of CPU time is spent inside the _bbox polygon_ testing, leading to poor performance:...
We implement our own ISO 8601 String parser (is there really no default parser out there?). When supplying a Date this is transformed to a Timestamp https://github.com/GIScience/oshdb/blob/eac6d34ac893615c65fe3f30a389f70681c74e33/oshdb-util/src/main/java/org/heigit/bigspatialdata/oshdb/util/time/ISODateTimeParser.java#L59 using the 'start...