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Some little experiment with a coverage index to speed up spatial queries if backend has no Z order support.

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This commit is contained in:
Sascha L. Teichmann
2015-07-21 22:01:10 +02:00
parent 470b47f70a
commit 1921b8211b
5 changed files with 281 additions and 76 deletions
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14
common/renderer.go
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@ -48,20 +48,6 @@ func (yo *YOrder) Reset() {
yo.blocks = yo.blocks[0:0]
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
func max32(a, b int32) int32 {
if a > b {
return a
}
return b
}
func copyData(data []byte) []byte {
l := len(data)
ndata := make([]byte, l, max(l, 8*1024))