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SynopsisModifies the attributes of an existing contour. Syntaxset_contour([id,] values); Description
The set_contour command sets the specified attributes to the provided values. The modified contour becomes current. Multiple contours may be modified with a single command by setting the currency to "all". Customizing the ContourThere are several attributes that control the characteristics of contours. The set_contour command may be used to modify the attribute values of an existing contour at any time during a ChIPS session. See "ahelp attributes" and "ahelp setget" for more general information. If multiple attributes are being set simultaneously and one of them fails, the entire command will fail and the contour will not be modified. The attributes associated with contours are:
Advanced FunctionsThe module of advanced ChIPS functions contains other commands for setting attribute values (refer to "ahelp chips" for information on loading the module): set_contour_algorithm set_contour_color set_contour_depth set_contour_interval set_contour_levels set_contour_mode set_contour_numlevels set_contour_style set_contour_thickness set_contour_transform Setting the Contour TransformThe transform used to create contours is not controlled by an attribute of the set_contour command. It is specified with set_contour_transform, which is in the module of advanced ChIPS functions. The command sets the transform to contour for future use and applys the transform to the contour. Contours currently only support a single transform. Multiple calls to this function will cause the transform already associated with the contour to be dropped and the the new transform to be set and applied. Passing "NULL" will cause the transform associated with the contour to be dropped. Example 1
chips> set_contour({"thickness", 2, "color", "peach"});Using attribute/value pairs, set the contour to display using a line thickness of 2 and with the color peach. Example 2
chips> set_contour({"levels", [10,15,20]});
chips> get_contour.mode;
arbitraryChange the levels being displayed by the contour (setting the levels attribute in this manner automatically changes the mode of the contour to "arbitrary"). Example 3
chips> s = ChipsContour;
chips> s.color = "red";
chips> s.style = "shortdash";
chips> set_contour("ctr1", s);Populate the "s" structure with attribute values, then use it to set the contour with an id of "ctr1" to use red, short-dashed lines. Example 4
chips> a = struct { thickness = 2, color = "salmon" };
chips> set_contour(a);Create a user-defined structure with thickness and color fields. Use the structure to modify the values of the current contour. CHANGES IN CIAO 4.1Default algorithm is marchingThe default contouring algorithm has been changed to be marching squares since it is a faster algorithm than the standard. levels and numlevels attributesThe attribute "levels" which refers to the requested number of levels for a given contour in count mode has been changed to "numlevels." When setting the attribute, "levels" now refers to a list of exact levels the user wants the contour to display. BugsSee the bugs pages on the ChIPS website for an up-to-date listing of known bugs. |
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The Chandra X-Ray
Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA. Email: cxcweb@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2004. All rights reserved. |
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