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Merge remote-tracking branch 'origin/main' into distiguish-duplicates-merge
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+3
-5
@@ -20,7 +20,7 @@ something that looks like "All Streets \[la]http://benfry.com/allstreets/map5.ht
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rather than something that looks like an Interstate road atlas.
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.PP
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If you give it all the building footprints in Los Angeles and zoom out
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far enough that most individual buildings are no longer discernable, you
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far enough that most individual buildings are no longer discernible, you
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should still be able to see the extent and variety of development in every neighborhood,
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not just the largest downtown buildings.
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.PP
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@@ -520,8 +520,6 @@ that are dropped, coalesced\-as\-needed, or clustered. The \fIoperation\fP may b
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to specify how the named \fIattribute\fP is accumulated onto the attribute of the same name in a feature that does survive.
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The attributes and operations may also be specified as JSON keys and values: \fB\fC\-\-accumulate\-attribute='{"attr": "operation", "attr2": "operation2"}'\fR\&.
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.IP \(bu 2
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\fB\fC\-\-accumulate\-numeric\-attributes\fR \fIprefix\fP: Accumulate sum, count, min, and max for all numeric attributes into new attributes with the specified \fIprefix\fP\&.
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.IP \(bu 2
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\fB\fC\-\-set\-attribute\fR \fIattribute\fP\fB\fC:\fR\fIvalue\fP: Set the value of the specified \fIattribute\fP in each feature to the specified \fIvalue\fP\&. This is mostly useful to give an attribute in each feature an initial value for \fB\fC\-\-accumulate\-attribute\fR\&.
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The attributes and values may also be specified as JSON keys and values: \fB\fC\-\-set\-attribute='{"attr": value, "attr2": value}'\fR\&.
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.IP \(bu 2
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@@ -607,7 +605,7 @@ preference to retaining points in sparse areas and dropping points in dense area
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.IP \(bu 2
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\fB\fC\-\-keep\-point\-cluster\-position\fR: Do not average the location of points as they are clustered.
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.IP \(bu 2
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\fB\fC\-\-preserve\-point\-density\-threshold=\fR\fIlevel\fP: At the low zoom levels, do not reduce point density below the specified \fIlevel\fP, even if the specfied drop rate would normally call for it, so that low\-density areas of the map do not appear blank. The unit is the distance between preserved points, as a fraction of the size of a tile. Values of 32 or 64 are probably appropriate for typical marker sizes.
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\fB\fC\-\-preserve\-point\-density\-threshold=\fR\fIlevel\fP: At the low zoom levels, do not reduce point density below the specified \fIlevel\fP, even if the specified drop rate would normally call for it, so that low\-density areas of the map do not appear blank. The unit is the distance between preserved points, as a fraction of the size of a tile. Values of 32 or 64 are probably appropriate for typical marker sizes.
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.IP \(bu 2
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\fB\fC\-\-preserve\-multiplier\-density\-threshold=\fR\fIlevel\fP: Preserve a minimum point density, but as \fB\fC\-\-retain\-points\-multiplier\fR features, not primary features.
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.RE
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@@ -846,7 +844,7 @@ If you have a feature like this:
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.fi
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.RE
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.PP
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with a \fB\fCtippecanoe\fR object specifiying a \fB\fCmaxzoom\fR of 9 and a \fB\fCminzoom\fR of 4, the feature
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with a \fB\fCtippecanoe\fR object specifying a \fB\fCmaxzoom\fR of 9 and a \fB\fCminzoom\fR of 4, the feature
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will only appear in the vector tiles for zoom levels 4 through 9. Note that the \fB\fCtippecanoe\fR
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object belongs to the Feature, not to its \fB\fCproperties\fR\&. If you specify a \fB\fCminzoom\fR for a feature,
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it will be preserved down to that zoom level even if dot\-dropping with \fB\fC\-r\fR would otherwise have
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