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package de.lmu.ifi.dbs.elki.visualization.style.lines;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2012
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.visualization.css.CSSClass;
/**
* Interface to obtain CSS classes for plot lines.
*
* {@code meta} is a set of Objects, usually constants that may or may not be
* used by the {@link LineStyleLibrary} to generate variants of the style.
*
* Predefined meta flags that are usually supported are:
* <dl>
* <dt>{@link #FLAG_STRONG}</dt>
* <dd>Request a "stronger" version of the same style</dd>
* <dt>{@link #FLAG_WEAK}</dt>
* <dd>Request a "weaker" version of the same style</dd>
* <dt>{@link #FLAG_INTERPOLATED}</dt>
* <dd>Request an "interpolated" version of the same style (e.g. lighter or
* dashed)</dd>
* </dl>
*
* @author Erich Schubert
*
* @apiviz.uses CSSClass oneway
*/
public interface LineStyleLibrary {
/**
* Meta flag to request a 'stronger' version of the style
*/
public final static String FLAG_STRONG = "strong";
/**
* Meta flag to request a 'weaker' version of the style
*/
public final static String FLAG_WEAK = "weak";
/**
* Meta flag to request an 'interpolated' version of the style
*/
public final static String FLAG_INTERPOLATED = "interpolated";
/**
* Add the formatting statements to the given CSS class.
*
* Note: this can overwrite some existing properties of the CSS class.
*
* @param cls CSS class to modify
* @param style style number
* @param width line width
* @param meta meta objects to request line variants
*/
public void formatCSSClass(CSSClass cls, int style, double width, Object... meta);
}
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