From cb9e33194ac1e46254b34fb771aad72654190fd5 Mon Sep 17 00:00:00 2001
From: William Joye Regions provide a means for marking particular areas of an
image for further analysis. Regions may also be used for
@@ -29,17 +29,14 @@
External Region Files Circle Ellipse
+
+ Regions
Regions
- Usage: circle x y radius
+ Usage: circle x y radius # fill=[0|1]
- Usage: ellipse x y radius radius angle
-
Box
- Usage: box x y width height angle
-
Polygon
- Usage: polygon x1 y1 x2 y2 x3 y3 ...
-
Point
Usage: point x y #
point=[circle|box|diamond|cross|x|arrow|boxcircle] [size]
@@ -175,7 +172,14 @@
which may be used for grouping and searching.
Line
+Circle | Ellipse | Box | Polygon
+
Circle, ellipse, box, and polygon regions may be rendered + with outline or solid color fill. To indicate fill, use the + fill property. A '1' indicates fill, '0' indicates no outline. +
+ Example: circle(100,100,20) # fill=1 +Line
The line region may be rendered with arrows, one at each end. To indicate arrows, use the line property. A '1' indicates an arrow, '0' indicates no arrow.
@@ -254,6 +258,7 @@ + pixel coords of original file using LTM/LTVMultiple WCS
@@ -366,6 +378,7 @@ + context-dependent (see below)FK4,
B1950
@@ -562,6 +588,7 @@
+
sky coordinate systems
FK5, J2000
GALACTIC
@@ -578,6 +605,7 @@
+
pixel coords of original file using LTM/LTV
AMPLIFIER
@@ -590,6 +618,7 @@
+
mosaic coords of original file using ATM/ATV
DETECTOR
@@ -602,6 +631,7 @@
+
mosaic coords of original file using DTM/DTV
WCS,WCSA-WCSZ
@@ -779,6 +809,7 @@
SECTOR is ignored
FIELD
+
is ignored
DIAMOND is ignored
RHOMBUS is ignored
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