colonel-mercator
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colonel-mercator - npm Package Compare versions
Comparing version 0.0.1 to 0.1.0
| var r_utils = require('mapnik-omnivore/lib/utils'); | ||
| module.exports.get_resolution = function(metadata, maxRes, snapping, callback) { | ||
| var EPSLN = 1.0e-10; | ||
@@ -11,20 +10,9 @@ var cellSize = metadata.raster.pixelSize.map(function(r) { | ||
| var validSpatRef = r_utils.getSpatialResolutions(); | ||
| var spatialRes; | ||
| var spatialRes = r_utils.getValidSpatialResolutions(validSpatRef, cellSize[0]); | ||
| var snapRes, snapSpatialRes; | ||
| if (snapping) { | ||
| snapRes = spatialRes[spatialRes.length - 1] - EPSLN; | ||
| snapSpatialRes = r_utils.getValidSpatialResolutions(validSpatRef, snapRes); | ||
| // Insurance agains recursive resampling | ||
| if (spatialRes[spatialRes.length - 1] !== snapSpatialRes[snapSpatialRes.length - 1]) { | ||
| throw new Error('Cellsize is over threshold'); | ||
| } | ||
| // Set cellsize to resolution @ mapnik-omnivore threshold - EPSLN | ||
| if (snapping !== false) { | ||
| spatialRes = r_utils.getValidSpatialResolutions(validSpatRef, cellSize[0], snapping); | ||
| cellSize = [ | ||
| snapSpatialRes[snapSpatialRes.length - 1], | ||
| snapSpatialRes[snapSpatialRes.length - 1] | ||
| validSpatRef[spatialRes.length], | ||
| validSpatRef[spatialRes.length] | ||
| ]; | ||
@@ -48,3 +36,3 @@ } | ||
| z: z, | ||
| thresh: validSpatRef[Math.min(z + upzoom, validSpatRef.length -1)] | ||
| thresh: validSpatRef[Math.min(z + upzoom, validSpatRef.length - 1)] | ||
| } | ||
@@ -51,0 +39,0 @@ }); |
| { | ||
| "name": "colonel-mercator", | ||
| "version": "0.0.1", | ||
| "version": "0.1.0", | ||
| "main": "./index", | ||
@@ -16,3 +16,3 @@ "engines": { | ||
| "dependencies": { | ||
| "mapnik-omnivore": "^6.4.0", | ||
| "mapnik-omnivore": "^7.0.0", | ||
| "minimist": "^1.1.0", | ||
@@ -19,0 +19,0 @@ "split": "^0.3.3" |
| # colonel-mercator | ||
| [](https://travis-ci.org/mapbox/colonel-mercator)[](https://coveralls.io/github/mapbox/colonel-mercator?branch=master) | ||
| Gets raster pixel resolutions, and optionally snaps them to `mapnik-omnivore` tiling thresholds. | ||
@@ -3,0 +6,0 @@ Also, generates "metatile" zooms - the tile sizes at which a given input resolution would be over a size threshold based on an "upzoom" (the resolution of zoom levels "up") |
Sorry, the diff of this file is not supported yet
Improved metrics
- Number of lines in readme file
- increased by8.11%
40
Worsened metrics
- Total package byte prevSize
- decreased by-7.81%
6966
- Number of package files
- decreased by-22.22%
7
- Lines of code
- decreased by-26.19%
62
Dependency changes
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- Removedgdal@0.7.2(transitive)
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- Removedsrs@1.0.1(transitive)
Updatedmapnik-omnivore@^7.0.0