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Make feature ordering cooperate with --retain-points-multiplier (#188)
* Make feature ordering cooperate with --retain-points-multiplier * Forgot to check in the actual code changes??? * Sort within each multiplier cluster as well as between clusters * Correct description of behavior in changelog * Drag original feature sequence along in megatiles for post-filter sort * Plumb the preserve-input-order flag through overzoom * Sort in overzoom if requested * Use within-tile input sequence numbers, not global sequence numbers * Documentation * Reverse direction of search to prevent accidental skipping * Add some comments about converting between attribute representations
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@@ -1266,4 +1266,6 @@ reads tile \fB\fCinz/inx/iny\fR of \fB\fCin.mvt.gz\fR and produces tile \fB\fCou
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\fB\fC\-j\fR \fIfilter\fP: Filter features using the same expression syntax as in tippecanoe.
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.IP \(bu 2
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\fB\fC\-m\fR: If a tile was created with the \fB\fC\-\-retain\-points\-multiplier\fR option, thin the tile back down to its normal feature count during overzooming. The first feature from each cluster will be retained, unless \fB\fC\-j\fR is used to specify a filter, in which case the first matching filter from each cluster will be retained instead.
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.IP \(bu 2
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\fB\fC\-\-preserve\-input\-order\fR: Restore a set of filtered features to its original input order
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.RE
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