## 1.14.4 * Make -B/-r feature-dropping consistent between tiles and zoom levels ## 1.14.3 * Add --detect-shared-borders option for better polygon simplification ## 1.14.2 * Enforce that string feature attributes must be encoded as UTF-8 ## 1.14.1 * Whitespace after commas in tile-join .csv input is no longer significant ## 1.14.0 * Tile-join is multithreaded and can merge multiple vector mbtiles files together ## 1.13.0 * Add the ability to specify layer names within the GeoJSON input ## 1.12.11 * Don't try to revive a placeholder for a degenerate polygon that had negative area ## 1.12.10 * Pass feature IDs through in tile-join ## 1.12.9 * Clean up parsing and serialization. Provide some context with parsing errors. ## 1.12.8 * Fix the spelling of the --preserve-input-order option ## 1.12.7 * Support the "id" field of GeoJSON objects and vector tile features ## 1.12.6 * Fix error reports when reading from an empty file with parallel input ## 1.12.5 * Add an option to vary the level of line and polygon simplification * Be careful not to produce an empty tile if there was a feature with empty geometry. ## 1.12.4 * Be even more careful not to produce features with empty geometry ## 1.12.3 * Fix double-counted progress in the progress indicator ## 1.12.2 * Add ability to specify a projection to tippecanoe-decode ## 1.12.1 * Fix incorrect tile layer version numbers in tile-join output ## 1.12.0 * Fix a tile-join bug that would retain fields that were supposed to be excluded ## 1.11.9 * Add minimal support for alternate input projections (EPSG:3857). ## 1.11.8 * Add an option to calculate the density of features as a feature attribute ## 1.11.7 * Keep metadata together with geometry for features that don't span many tiles, to avoid extra memory load from indexing into a separate metadata file ## 1.11.6 * Reduce the size of critical data structures to reduce dynamic memory use ## 1.11.5 * Let zoom level 0 have just as much extent and buffer as any other zoom * Fix tippecanoe-decode bug that would sometimes show outer rings as inner ## 1.11.4 * Don't let polygons with nonzero area disappear during cleaning ## 1.11.3 * Internal code cleanup ## 1.11.2 * Update Clipper to fix potential crash ## 1.11.1 * Make better use of C++ standard libraries ## 1.11.0 * Convert C source files to C++ ## 1.10.0 * Upgrade Clipper to fix potential crashes and improve polygon topology ## 1.9.16 * Switch to protozero as the library for reading and writing protocol buffers ## 1.9.15 * Add option not to clip features ## 1.9.14 * Clean up polygons after coalescing, if necessary ## 1.9.13 * Don't trust the OS so much about how many files can be open ## 1.9.12 * Limit the size of the parallel parsing streaming input buffer * Add an option to set the tileset's attribution ## 1.9.11 * Fix a line simplification crash when a segment degenerates to a single point ## 1.9.10 * Warn if temporary disk space starts to run low ## 1.9.9 * Add --drop-polygons to drop a fraction of polygons by zoom level * Only complain once about failing to clean polygons ## 1.9.8 * Use an on-disk radix sort for the index to control virtual memory thrashing when the geometry and index are too large to fit in memory ## 1.9.7 * Fix build problem (wrong spelling of long long max/min constants) ## 1.9.6 * Add an option to give specific layer names to specific input files ## 1.9.5 * Remove temporary files that were accidentally left behind * Be more careful about checking memory allocations and array bounds * Add GNU-style long options ## 1.9.4 * Tippecanoe-decode can decode .pbf files that aren't in an .mbtiles container ## 1.9.3 * Don't get stuck in a loop trying to split up very small, very complicated polygons ## 1.9.2 * Increase maximum tile size for tippecanoe-decode ## 1.9.1 * Incorporate Mapnik's Clipper upgrades for consistent results between Mac and Linux ## 1.9.0 * Claim vector tile version 2 in mbtiles * Split too-complex polygons into multiple features ## 1.8.1 * Bug fixes to maxzoom, and more tests ## 1.8.0 * There are tests that can be run with "make test". ## 1.7.2 * Feature properties that are arrays or hashes get stringified rather than being left out with a warning. ## 1.7.1 * Make clipping behavior with no buffer consistent with Mapnik. Features that are exactly on a tile boundary appear in both tiles. ## 1.7.0 * Parallel processing of input with -P works with streamed input too * Error handling if unsupported options given to -p or -a ## 1.6.4 * Fix crashing bug when layers are being merged with -l ## 1.6.3 * Add an option to do line simplification only at zooms below maxzoom ## 1.6.2 * Make sure line simplification matches on opposite sides of a tile boundary ## 1.6.1 * Use multiple threads for line simplification and polygon cleaning ## 1.6.0 * Add option of parallelized input when reading from a line-delimited file ## 1.5.1 * Fix internal error when number of CPUs is not a power of 2 * Add missing #include ## 1.5.0 * Base zoom for dot-dropping can be specified independently of maxzoom for tiling. * Tippecanoe can calculate a base zoom and drop rate for you. ## 1.4.3 * Encode numeric attributes as integers instead of floating point if possible ## 1.4.2 * Bug fix for problem that would occasionally produce empty point geometries * More bug fixes for polygon generation ## 1.4.1 * Features that cross the antimeridian are split into two parts instead of being partially lost off the edge ## 1.4.0 * More polygon correctness * Query the system for the number of available CPUs instead of guessing * Merge input files into one layer if a layer name is specified * Document and install tippecanoe-enumerate and tippecanoe-decode ## 1.3.0 * Tile generation is multithreaded to take advantage of multiple CPUs * More compact data representation reduces memory usage and improves speed * Polygon clipping uses [Clipper](http://www.angusj.com/delphi/clipper/documentation/Docs/_Body.htm) and makes sure interior and exterior rings are distinguished by winding order * Individual GeoJSON features can specify their own minzoom and maxzoom * New `tile-join` utility can add new properties from a CSV file to an existing tileset * Feature coalescing, line-reversing, and reordering by attribute are now options, not defaults * Output of `decode` utility is now in GeoJSON format * Tile generation with a minzoom spends less time on unused lower zoom levels * Bare geometries without a Feature wrapper are accepted * Default tile resolution is 4096 units at all zooms since renderers assume it ## 1.2.0 * Switched to top-down rendering, yielding performance improvements * Add a dot-density gamma feature to thin out especially dense clusters * Add support for multiple layers, making it possible to include more than one GeoJSON featurecollection in a map. [#29](https://github.com/mapbox/tippecanoe/pull/29) * Added flags that let you optionally avoid simplifying lines, restricting maximum tile sizes, and coalescing features [#30](https://github.com/mapbox/tippecanoe/pull/30) * Added check that minimum zoom level is less than maximum zoom level * Added `-v` flag to check tippecanoe's version