Nyall Dawson 55027e545f Clean up and extend expression geometry functions: ...

- New expression functions for area(geom), perimeter(geom),
point_n(geom), start_point(geom), end_point(geom), make_point(x,y)
- Add new variant to length() function which takes a geometry object,
allows for length(geom) evaluation.
- Rename x_at, y_at to $x_at, $y_at (alias old names) to reflect that
these only work on current feature geometry
- Add x(geom), y(geom) functions which return x and y coordinate
for point geometries or centroid x/y for non-point geometries
(fix #11008)

2015-09-18 09:09:09 +10:00

..

$area

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$atlasfeature

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$atlasfeatureid

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$atlasgeometry

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$length

Add expression function help for $length

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$x_at

Clean up and extend expression geometry functions:

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$y_at

Clean up and extend expression geometry functions:

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abs

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acos

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age

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area

Clean up and extend expression geometry functions:

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asin

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atan

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atan2

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attribute

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bounds

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bounds_height

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bounds_width

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buffer

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ceil

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centroid

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clamp

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coalesce

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color_cmyk

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color_cmyka

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color_hsl

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color_hsla

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color_hsv

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color_hsva

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color_rgb

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color_rgba

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combine

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concat

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contains

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convex_hull

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cos

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crosses

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day

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difference

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disjoint

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distance

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end_point

Clean up and extend expression geometry functions:

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exp

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floor

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format

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format_date

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format_number

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geom_from_gml

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geom_from_wkt

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geom_to_wkt

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geometry

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get_feature

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hamming_distance

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hour

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if

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intersection

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intersects

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intersects_bbox

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layer_property

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left

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length

Clean up and extend expression geometry functions:

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levenshtein

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ln

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log

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log10

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longest_common_substring

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lower

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lpad

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make_point

Clean up and extend expression geometry functions:

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max

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min

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minute

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month

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now

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num_points

[FEATURE] Add num_points(geometry) support in expression evaluator

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overlaps

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perimeter

Clean up and extend expression geometry functions:

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pi

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point_n

Clean up and extend expression geometry functions:

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project_color

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ramp_color

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rand

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randf

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regexp_match

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regexp_replace

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regexp_substr

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replace

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right

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round

translation fix

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rpad

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scale_exp

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scale_linear

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second

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sin

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soundex

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sqrt

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start_point

Clean up and extend expression geometry functions:

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strpos

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substr

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sym_difference

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tan

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title

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to_date

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to_datetime

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to_int

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to_interval

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to_real

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to_string

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to_time

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touches

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transform

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trim

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union

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upper

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uuid

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var

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week

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within

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wordwrap

Change expression help from free form html files to structured json

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x

Clean up and extend expression geometry functions:

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x_max

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x_min

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y

Clean up and extend expression geometry functions:

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y_max

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y_min

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year

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