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Update tile grid option descriptions

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In version 6 coordinate increase downwards.  Add a description for "sizes"
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mike-000
2019-11-20 18:02:42 +00:00
committed by GitHub
parent 32932a7fd3
commit c3153075b2
1 changed files with 9 additions and 3 deletions
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12
src/ol/tilegrid/TileGrid.js
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@@ -25,17 +25,23 @@ const tmpTileCoord = [0, 0, 0];
* `origins` are configured, the `origin` will be set to the top-left corner of the extent.
* @property {number} [minZoom=0] Minimum zoom.
* @property {import("../coordinate.js").Coordinate} [origin] The tile grid origin, i.e. where the `x`
* and `y` axes meet (`[z, 0, 0]`). Tile coordinates increase left to right and upwards. If not
* and `y` axes meet (`[z, 0, 0]`). Tile coordinates increase left to right and downwards. If not
* specified, `extent` or `origins` must be provided.
* @property {Array<import("../coordinate.js").Coordinate>} [origins] Tile grid origins, i.e. where
* the `x` and `y` axes meet (`[z, 0, 0]`), for each zoom level. If given, the array length
* should match the length of the `resolutions` array, i.e. each resolution can have a different
* origin. Tile coordinates increase left to right and upwards. If not specified, `extent` or
* origin. Tile coordinates increase left to right and downwards. If not specified, `extent` or
* `origin` must be provided.
* @property {!Array<number>} resolutions Resolutions. The array index of each resolution needs
* to match the zoom level. This means that even if a `minZoom` is configured, the resolutions
* array will have a length of `maxZoom + 1`.
* @property {Array<import("../size.js").Size>} [sizes] Sizes.
* @property {Array<import("../size.js").Size>} [sizes] Number of tile rows and columns
* of the grid for each zoom level. If specified the values
* define each zoom level's extent together with the `origin` or `origins`.
* A grid `extent` can be configured in addition, and will further limit the extent
* for which tile requests are made by sources. If the bottom-left corner of
* an extent is used as `origin` or `origins`, then the `y` value must be
* negative because OpenLayers tile coordinates use the top left as the origin.
* @property {number|import("../size.js").Size} [tileSize] Tile size.
* Default is `[256, 256]`.
* @property {Array<import("../size.js").Size>} [tileSizes] Tile sizes. If given, the array length