{"id":18739554,"url":"https://github.com/springmeyer/vt-overzooming-clipping-testcase","last_synced_at":"2025-11-19T13:30:16.997Z","repository":{"id":66365777,"uuid":"87236791","full_name":"springmeyer/vt-overzooming-clipping-testcase","owner":"springmeyer","description":"Testcase demonstrating a possible vt compositing bug in node-mapnik/mapnik-vt.","archived":false,"fork":false,"pushed_at":"2017-05-03T22:15:40.000Z","size":4,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2024-12-28T18:28:04.953Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/springmeyer.png","metadata":{"files":{"readme":"readme.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-04-04T21:28:13.000Z","updated_at":"2017-04-04T21:30:01.000Z","dependencies_parsed_at":"2023-02-20T16:01:16.038Z","dependency_job_id":null,"html_url":"https://github.com/springmeyer/vt-overzooming-clipping-testcase","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/springmeyer%2Fvt-overzooming-clipping-testcase","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/springmeyer%2Fvt-overzooming-clipping-testcase/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/springmeyer%2Fvt-overzooming-clipping-testcase/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/springmeyer%2Fvt-overzooming-clipping-testcase/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/springmeyer","download_url":"https://codeload.github.com/springmeyer/vt-overzooming-clipping-testcase/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":239619570,"owners_count":19669447,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-07T15:36:20.662Z","updated_at":"2025-11-19T13:30:16.938Z","avatar_url":"https://github.com/springmeyer.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"\nTestcase visualizing vt compositing and overzooming in node-mapnik/mapnik-vt.\n\n## Setup\n\nRun:\n\n```\nnpm install\nnpm install -g geojsonio-cli\n```\n\n## Details\n\nThis testcase generally:\n\n  - Creates source data on the fly that is \"padded\" (extends outside the extent of the tile being composited)\n  - Adds polygons representing the padded source data (\"parent\") and the exact tile extent (\"child\")\n  - Composites the tile to a new overzoomed tile\n  - Outputs the result (combined with the original geojson) to a final geojson that can be visualized in geojson.io\n\nThe idea is to make changes to the script, then re-run the result to quickly view the impact.\n\n## Usage\n\nSample usage that renders a tile with a 256 px buffer (double the tile extent):\n\n```\nnode overzoom.js --z 6 --x 11 --y 23 --buffer 256 | geojsonio\n```\n\nNote: http://www.maptiler.org/google-maps-coordinates-tile-bounds-projection/ is a good reference for trying different tiles","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fspringmeyer%2Fvt-overzooming-clipping-testcase","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fspringmeyer%2Fvt-overzooming-clipping-testcase","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fspringmeyer%2Fvt-overzooming-clipping-testcase/lists"}