Added validation checks for list to support sparse grid levels.

geoscript / geoscript-groovy

A Groovy implementation of GeoScript.

https://geoscript.net/groovy

MIT License

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Closed gpotts closed 9 years ago

gpotts commented 9 years ago

Updated TileCursor to validate the passed in z to see if it's within the grid list. If not then the size is set to 0 for the tile cursor