2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 package jalview.ext.rbvi.chimera;
23 import jalview.api.AlignmentViewPanel;
24 import jalview.api.structures.JalviewStructureDisplayI;
25 import jalview.bin.Cache;
26 import jalview.datamodel.AlignmentI;
27 import jalview.datamodel.HiddenColumns;
28 import jalview.datamodel.PDBEntry;
29 import jalview.datamodel.SearchResultMatchI;
30 import jalview.datamodel.SearchResultsI;
31 import jalview.datamodel.SequenceFeature;
32 import jalview.datamodel.SequenceI;
33 import jalview.gui.Preferences;
34 import jalview.gui.StructureViewer.ViewerType;
35 import jalview.httpserver.AbstractRequestHandler;
36 import jalview.io.DataSourceType;
37 import jalview.structure.AtomSpec;
38 import jalview.structure.StructureSelectionManager;
39 import jalview.structures.models.AAStructureBindingModel;
40 import jalview.util.MessageManager;
43 import java.io.FileOutputStream;
44 import java.io.IOException;
45 import java.io.PrintWriter;
46 import java.net.BindException;
47 import java.util.ArrayList;
48 import java.util.BitSet;
49 import java.util.Collections;
50 import java.util.Iterator;
51 import java.util.LinkedHashMap;
52 import java.util.List;
55 import ext.edu.ucsf.rbvi.strucviz2.ChimeraManager;
56 import ext.edu.ucsf.rbvi.strucviz2.ChimeraModel;
57 import ext.edu.ucsf.rbvi.strucviz2.StructureManager;
58 import ext.edu.ucsf.rbvi.strucviz2.StructureManager.ModelType;
60 public abstract class JalviewChimeraBinding extends AAStructureBindingModel
62 public static final String CHIMERA_FEATURE_GROUP = "Chimera";
64 // Chimera clause to exclude alternate locations in atom selection
65 private static final String NO_ALTLOCS = "&~@.B-Z&~@.2-9";
67 private static final boolean debug = false;
69 private static final String PHOSPHORUS = "P";
71 private static final String ALPHACARBON = "CA";
74 * Object through which we talk to Chimera
76 private ChimeraManager chimeraManager;
79 * Object which listens to Chimera notifications
81 private AbstractRequestHandler chimeraListener;
84 * Map of ChimeraModel objects keyed by PDB full local file name
86 protected Map<String, List<ChimeraModel>> chimeraMaps = new LinkedHashMap<>();
88 String lastHighlightCommand;
90 private Thread chimeraMonitor;
93 * Open a PDB structure file in Chimera and set up mappings from Jalview.
95 * We check if the PDB model id is already loaded in Chimera, if so don't reopen
96 * it. This is the case if Chimera has opened a saved session file.
101 public boolean openFile(PDBEntry pe)
103 String file = pe.getFile();
106 List<ChimeraModel> modelsToMap = new ArrayList<>();
107 List<ChimeraModel> oldList = chimeraManager.getModelList();
108 boolean alreadyOpen = false;
111 * If Chimera already has this model, don't reopen it, but do remap it.
113 for (ChimeraModel open : oldList)
115 if (open.getModelName().equals(pe.getId()))
118 modelsToMap.add(open);
123 * If Chimera doesn't yet have this model, ask it to open it, and retrieve
124 * the model name(s) added by Chimera.
128 chimeraManager.openModel(file, pe.getId(), ModelType.PDB_MODEL);
129 addChimeraModel(pe, modelsToMap);
132 chimeraMaps.put(file, modelsToMap);
134 if (getSsm() != null)
136 getSsm().addStructureViewerListener(this);
139 } catch (Exception q)
141 log("Exception when trying to open model " + file + "\n"
149 * Adds the ChimeraModel corresponding to the given PDBEntry, based on model
150 * name matching PDB id
155 protected void addChimeraModel(PDBEntry pe,
156 List<ChimeraModel> modelsToMap)
159 * Chimera: query for actual models and find the one with
160 * matching model name - already set in viewer.openModel()
162 List<ChimeraModel> newList = chimeraManager.getModelList();
163 // JAL-1728 newList.removeAll(oldList) does not work
164 for (ChimeraModel cm : newList)
166 if (cm.getModelName().equals(pe.getId()))
181 public JalviewChimeraBinding(StructureSelectionManager ssm,
182 PDBEntry[] pdbentry, SequenceI[][] sequenceIs,
183 DataSourceType protocol)
185 super(ssm, pdbentry, sequenceIs, protocol);
186 chimeraManager = new ChimeraManager(new StructureManager(true));
187 String viewerType = Cache.getProperty(Preferences.STRUCTURE_DISPLAY);
188 chimeraManager.setChimeraX(ViewerType.CHIMERAX.name().equals(viewerType));
189 setStructureCommands(new ChimeraCommands());
193 * Starts a thread that waits for the Chimera process to finish, so that we can
194 * then close the associated resources. This avoids leaving orphaned Chimera
195 * viewer panels in Jalview if the user closes Chimera.
197 protected void startChimeraProcessMonitor()
199 final Process p = chimeraManager.getChimeraProcess();
200 chimeraMonitor = new Thread(new Runnable()
209 JalviewStructureDisplayI display = getViewer();
212 display.closeViewer(false);
214 } catch (InterruptedException e)
216 // exit thread if Chimera Viewer is closed in Jalview
220 chimeraMonitor.start();
224 * Start a dedicated HttpServer to listen for Chimera notifications, and tell it
227 public void startChimeraListener()
231 chimeraListener = new ChimeraListener(this);
232 chimeraManager.startListening(chimeraListener.getUri());
233 } catch (BindException e)
236 "Failed to start Chimera listener: " + e.getMessage());
241 * Close down the Jalview viewer and listener, and (optionally) the associated
244 public void closeViewer(boolean closeChimera)
246 getSsm().removeStructureViewerListener(this, this.getStructureFiles());
249 chimeraManager.exitChimera();
251 if (this.chimeraListener != null)
253 chimeraListener.shutdown();
254 chimeraListener = null;
256 chimeraManager = null;
258 if (chimeraMonitor != null)
260 chimeraMonitor.interrupt();
262 releaseUIResources();
269 public String superposeStructures(AlignmentI[] _alignment,
270 int[] _refStructure, HiddenColumns[] _hiddenCols)
272 StringBuilder allComs = new StringBuilder(128);
273 String[] files = getStructureFiles();
275 if (!waitForFileLoad(files))
281 StringBuilder selectioncom = new StringBuilder(256);
282 boolean chimeraX = chimeraManager.isChimeraX();
283 for (int a = 0; a < _alignment.length; a++)
285 int refStructure = _refStructure[a];
286 AlignmentI alignment = _alignment[a];
287 HiddenColumns hiddenCols = _hiddenCols[a];
289 if (refStructure >= files.length)
291 System.err.println("Ignoring invalid reference structure value "
297 * 'matched' bit i will be set for visible alignment columns i where
298 * all sequences have a residue with a mapping to the PDB structure
300 BitSet matched = new BitSet();
301 for (int m = 0; m < alignment.getWidth(); m++)
303 if (hiddenCols == null || hiddenCols.isVisible(m))
309 SuperposeData[] structures = new SuperposeData[files.length];
310 for (int f = 0; f < files.length; f++)
312 structures[f] = new SuperposeData(alignment.getWidth());
316 * Calculate the superposable alignment columns ('matched'), and the
317 * corresponding structure residue positions (structures.pdbResNo)
319 int candidateRefStructure = findSuperposableResidues(alignment,
320 matched, structures);
321 if (refStructure < 0)
324 * If no reference structure was specified, pick the first one that has
325 * a mapping in the alignment
327 refStructure = candidateRefStructure;
330 int nmatched = matched.cardinality();
333 return MessageManager.formatMessage("label.insufficient_residues",
338 * Generate select statements to select regions to superimpose structures
340 String[] selcom = new String[files.length];
341 for (int pdbfnum = 0; pdbfnum < files.length; pdbfnum++)
343 final int modelNo = pdbfnum + (chimeraX ? 1 : 0);
344 // todo correct resolution to model number
345 String chainCd = "." + structures[pdbfnum].chain;
348 StringBuilder molsel = new StringBuilder();
351 molsel.append("/" + structures[pdbfnum].chain + ":");
354 int nextColumnMatch = matched.nextSetBit(0);
355 while (nextColumnMatch != -1)
357 int pdbResNum = structures[pdbfnum].pdbResNo[nextColumnMatch];
358 if (lpos != pdbResNum - 1)
361 * discontiguous - append last residue now
365 molsel.append(String.valueOf(lpos));
368 molsel.append(chainCd);
377 * extending a contiguous run
382 * start the range selection
384 molsel.append(String.valueOf(lpos));
390 nextColumnMatch = matched.nextSetBit(nextColumnMatch + 1);
394 * and terminate final selection
398 molsel.append(String.valueOf(lpos));
401 molsel.append(chainCd);
404 if (molsel.length() > 1)
406 selcom[pdbfnum] = molsel.toString();
407 selectioncom.append("#").append(String.valueOf(modelNo));
410 selectioncom.append(":");
412 selectioncom.append(selcom[pdbfnum]);
413 // selectioncom.append(" ");
414 if (pdbfnum < files.length - 1)
416 selectioncom.append("|");
421 selcom[pdbfnum] = null;
425 StringBuilder command = new StringBuilder(256);
426 for (int pdbfnum = 0; pdbfnum < files.length; pdbfnum++)
428 final int modelNo = pdbfnum + (chimeraX ? 1 : 0);
429 if (pdbfnum == refStructure || selcom[pdbfnum] == null
430 || selcom[refStructure] == null)
434 if (command.length() > 0)
440 * Form Chimera match command, from the 'new' structure to the
441 * 'reference' structure e.g. (50 residues, chain B/A, alphacarbons):
443 * match #1:1-30.B,81-100.B@CA #0:21-40.A,61-90.A@CA
446 * https://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/match.html
448 command.append(chimeraX ? "align " : "match ");
449 command.append(getModelSpec(modelNo));
454 command.append(selcom[pdbfnum]);
455 command.append("@").append(
456 structures[pdbfnum].isRna ? PHOSPHORUS : ALPHACARBON);
457 // JAL-1757 exclude alternate CA locations - ChimeraX syntax tbd
460 command.append(NO_ALTLOCS);
462 command.append(chimeraX ? " toAtoms " : " ")
463 .append(getModelSpec(refStructure + (chimeraX ? 1 : 0)));
468 command.append(selcom[refStructure]);
469 command.append("@").append(
470 structures[refStructure].isRna ? PHOSPHORUS : ALPHACARBON);
473 command.append(NO_ALTLOCS);
476 if (selectioncom.length() > 0)
480 System.out.println("Select regions:\n" + selectioncom.toString());
482 "Superimpose command(s):\n" + command.toString());
484 // allComs.append("~display all; ");
487 // allComs.append("show ").append(selectioncom.toString())
488 // .append(" pbonds");
492 // allComs.append("chain @CA|P; ribbon ");
493 // allComs.append(selectioncom.toString());
495 if (allComs.length() > 0) {
498 allComs.append(command.toString());
503 if (selectioncom.length() > 0)
505 // TODO: visually distinguish regions that were superposed
506 if (selectioncom.substring(selectioncom.length() - 1).equals("|"))
508 selectioncom.setLength(selectioncom.length() - 1);
512 System.out.println("Select regions:\n" + selectioncom.toString());
514 allComs.append(";~display all; ");
517 allComs.append("show @CA|P pbonds; show ")
518 .append(selectioncom.toString()).append(" ribbons; view");
522 allComs.append("chain @CA|P; ribbon ; focus");
523 allComs.append(selectioncom.toString());
525 // allComs.append("; ~display all; chain @CA|P; ribbon ")
526 // .append(selectioncom.toString()).append("; focus");
527 List<String> chimeraReplies = executeCommand(allComs.toString(),
529 for (String reply : chimeraReplies)
531 if (reply.toLowerCase().contains("unequal numbers of atoms"))
541 * Helper method to construct model spec in Chimera format:
543 * <li>#0 (#1 etc) for a PDB file with no sub-models</li>
544 * <li>#0.1 (#1.1 etc) for a PDB file with sub-models</li>
546 * Note for now we only ever choose the first of multiple models. This
547 * corresponds to the hard-coded Jmol equivalent (compare {1.1}). Refactor in
548 * future if there is a need to select specific sub-models.
553 protected String getModelSpec(int pdbfnum)
555 if (pdbfnum < 0 || pdbfnum >= getPdbCount())
557 return "#" + pdbfnum; // temp hack for ChimeraX
561 * For now, the test for having sub-models is whether multiple Chimera
562 * models are mapped for the PDB file; the models are returned as a response
563 * to the Chimera command 'list models type molecule', see
564 * ChimeraManager.getModelList().
566 List<ChimeraModel> maps = chimeraMaps.get(getStructureFiles()[pdbfnum]);
567 boolean hasSubModels = maps != null && maps.size() > 1;
568 return "#" + String.valueOf(pdbfnum) + (hasSubModels ? ".1" : "");
572 * Launch Chimera, unless an instance linked to this object is already
573 * running. Returns true if Chimera is successfully launched, or already
574 * running, else false.
578 public boolean launchChimera()
580 if (chimeraManager.isChimeraLaunched())
585 boolean launched = chimeraManager.launchChimera(getChimeraPaths());
588 startChimeraProcessMonitor();
592 log("Failed to launch Chimera!");
598 * Returns a list of candidate paths to the Chimera program executable
602 protected List<String> getChimeraPaths()
604 return StructureManager.getChimeraPaths(false);
608 * Answers true if the Chimera process is still running, false if ended or not
613 public boolean isChimeraRunning()
615 return chimeraManager.isChimeraLaunched();
619 * Send a command to Chimera, and optionally log and return any responses.
625 public List<String> executeCommand(final String command,
628 if (chimeraManager == null || command == null)
630 // ? thread running after viewer shut down
633 List<String> reply = null;
634 // trim command or it may never find a match in the replyLog!!
635 List<String> lastReply = chimeraManager
636 .sendChimeraCommand(command.trim(), getResponse);
642 log("Response from command ('" + command + "') was:\n" + lastReply);
650 * Send a Chimera command asynchronously in a new thread. If the progress
651 * message is not null, display this message while the command is executing.
656 protected abstract void sendAsynchronousCommand(String command,
662 protected void executeWhenReady(String command)
665 executeCommand(command, false);
669 private void waitForChimera()
671 while (chimeraManager != null && chimeraManager.isBusy())
676 } catch (InterruptedException q)
683 public synchronized String[] getStructureFiles()
685 if (chimeraManager == null)
687 return new String[0];
690 return chimeraMaps.keySet()
691 .toArray(modelFileNames = new String[chimeraMaps.size()]);
695 * Construct and send a command to highlight zero, one or more atoms. We do this
696 * by sending an "rlabel" command to show the residue label at that position.
699 public void highlightAtoms(List<AtomSpec> atoms)
701 if (atoms == null || atoms.size() == 0)
706 boolean forChimeraX = chimeraManager.isChimeraX();
707 StringBuilder cmd = new StringBuilder(128);
708 boolean first = true;
709 boolean found = false;
711 for (AtomSpec atom : atoms)
713 int pdbResNum = atom.getPdbResNum();
714 String chain = atom.getChain();
715 String pdbfile = atom.getPdbFile();
716 List<ChimeraModel> cms = chimeraMaps.get(pdbfile);
717 if (cms != null && !cms.isEmpty())
721 cmd.append(forChimeraX ? "label #" : "rlabel #");
730 cmd.append(cms.get(0).getModelNumber())
731 .append("/").append(chain).append(":").append(pdbResNum);
735 cmd.append(cms.get(0).getModelNumber())
736 .append(":").append(pdbResNum);
737 if (!chain.equals(" ") && !forChimeraX)
739 cmd.append(".").append(chain);
745 String command = cmd.toString();
748 * avoid repeated commands for the same residue
750 if (command.equals(lastHighlightCommand))
756 * unshow the label for the previous residue
758 if (lastHighlightCommand != null)
760 chimeraManager.sendChimeraCommand("~" + lastHighlightCommand, false);
764 chimeraManager.sendChimeraCommand(command, false);
766 this.lastHighlightCommand = command;
770 * Query Chimera for its current selection, and highlight it on the alignment
772 public void highlightChimeraSelection()
775 * Ask Chimera for its current selection
777 List<String> selection = chimeraManager.getSelectedResidueSpecs();
780 * Parse model number, residue and chain for each selected position,
781 * formatted as #0:123.A or #1.2:87.B (#model.submodel:residue.chain)
783 List<AtomSpec> atomSpecs = convertStructureResiduesToAlignment(
787 * Broadcast the selection (which may be empty, if the user just cleared all
790 getSsm().mouseOverStructure(atomSpecs);
794 * Converts a list of Chimera atomspecs to a list of AtomSpec representing the
795 * corresponding residues (if any) in Jalview
797 * @param structureSelection
800 protected List<AtomSpec> convertStructureResiduesToAlignment(
801 List<String> structureSelection)
803 boolean chimeraX = chimeraManager.isChimeraX();
804 List<AtomSpec> atomSpecs = new ArrayList<>();
805 for (String atomSpec : structureSelection)
809 AtomSpec spec = AtomSpec.fromChimeraAtomspec(atomSpec, chimeraX);
810 String pdbfilename = getPdbFileForModel(spec.getModelNumber());
811 spec.setPdbFile(pdbfilename);
813 } catch (IllegalArgumentException e)
815 System.err.println("Failed to parse atomspec: " + atomSpec);
825 protected String getPdbFileForModel(int modelId)
828 * Work out the pdbfilename from the model number
830 String pdbfilename = modelFileNames[0];
831 findfileloop: for (String pdbfile : this.chimeraMaps.keySet())
833 for (ChimeraModel cm : chimeraMaps.get(pdbfile))
835 if (cm.getModelNumber() == modelId)
837 pdbfilename = pdbfile;
845 private void log(String message)
847 System.err.println("## Chimera log: " + message);
851 * Ask Chimera to save its session to the given file. Returns true if
852 * successful, else false.
857 public boolean saveSession(String filepath)
859 if (isChimeraRunning())
862 * Chimera: https://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/midas/save.html
863 * ChimeraX: https://www.cgl.ucsf.edu/chimerax/docs/user/commands/save.html
865 String command = getSaveSessionCommand(filepath);
866 List<String> reply = chimeraManager.sendChimeraCommand(command, true);
867 if (reply.contains("Session written"))
874 .error("Error saving Chimera session: " + reply.toString());
881 * Returns the command to save the viewer session to the given file path
886 protected String getSaveSessionCommand(String filepath)
888 return "save " + filepath;
892 * Ask Chimera to open a session file. Returns true if successful, else false.
893 * The filename must have a .py (Chimera) or .cxs (ChimeraX) extension for
894 * this command to work.
899 public boolean openSession(String filepath)
902 * Chimera: https://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/midas/open.html
903 * ChimeraX: https://www.cgl.ucsf.edu/chimerax/docs/user/commands/open.html
905 executeCommand("open " + filepath, true);
906 // todo: test for failure - how?
911 * Send a 'show' command for all atoms in the currently selected columns
913 * TODO: pull up to abstract structure viewer interface
917 public void highlightSelection(AlignmentViewPanel vp)
919 List<Integer> cols = vp.getAlignViewport().getColumnSelection()
921 AlignmentI alignment = vp.getAlignment();
922 StructureSelectionManager sm = getSsm();
923 for (SequenceI seq : alignment.getSequences())
926 * convert selected columns into sequence positions
928 int[] positions = new int[cols.size()];
930 for (Integer col : cols)
932 positions[i++] = seq.findPosition(col);
934 sm.highlightStructure(this, seq, positions);
939 * Constructs and send commands to Chimera to set attributes on residues for
940 * features visible in Jalview
945 public int sendFeaturesToViewer(AlignmentViewPanel avp)
947 // TODO refactor as required to pull up to an interface
948 String[] files = getStructureFiles();
954 String[] commands = getCommandGenerator()
955 .setAttributesForFeatures(getSsm(), files, getSequence(), avp);
956 if (commands.length > 10)
958 sendCommandsByFile(commands);
962 for (String command : commands)
964 sendAsynchronousCommand(command, null);
967 return commands.length;
971 * Write commands to a temporary file, and send a command to Chimera to open the
972 * file as a commands script. For use when sending a large number of separate
973 * commands would overload the REST interface mechanism.
977 protected void sendCommandsByFile(String[] commands)
981 File tmp = File.createTempFile("chim", getCommandFileExtension());
983 PrintWriter out = new PrintWriter(new FileOutputStream(tmp));
984 for (String command : commands)
986 out.println(command);
990 String path = tmp.getAbsolutePath();
991 String command = getOpenCommandFileCommand(path);
992 sendAsynchronousCommand(command, null);
993 } catch (IOException e)
995 System.err.println("Sending commands to Chimera via file failed with "
1001 * Returns the command for the structure viewer to open a file of commands at
1002 * the given file path
1007 protected String getOpenCommandFileCommand(String path)
1009 return "open cmd:" + path;
1013 * Returns the file extension required for a file of commands to be read by
1014 * the structure viewer
1017 protected String getCommandFileExtension()
1023 * Get Chimera residues which have the named attribute, find the mapped
1024 * positions in the Jalview sequence(s), and set as sequence features
1027 * @param alignmentPanel
1029 public void copyStructureAttributesToFeatures(String attName,
1030 AlignmentViewPanel alignmentPanel)
1032 // todo pull up to AAStructureBindingModel (and interface?)
1035 * ask Chimera to list residues with the attribute, reporting its value
1037 // this alternative command
1038 // list residues spec ':*/attName' attr attName
1039 // doesn't report 'None' values (which is good), but
1040 // fails for 'average.bfactor' (which is bad):
1042 String cmd = "list residues attr '" + attName + "'";
1043 List<String> residues = executeCommand(cmd, true);
1045 boolean featureAdded = createFeaturesForAttributes(attName, residues);
1048 alignmentPanel.getFeatureRenderer().featuresAdded();
1053 * Create features in Jalview for the given attribute name and structure
1057 * The residue list should be 0, 1 or more reply lines of the format:
1058 * residue id #0:5.A isHelix -155.000836316 index 5
1060 * residue id #0:6.A isHelix None
1067 protected boolean createFeaturesForAttributes(String attName,
1068 List<String> residues)
1070 boolean featureAdded = false;
1071 String featureGroup = getViewerFeatureGroup();
1072 boolean chimeraX = chimeraManager.isChimeraX();
1074 for (String residue : residues)
1076 AtomSpec spec = null;
1077 String[] tokens = residue.split(" ");
1078 if (tokens.length < 5)
1082 String atomSpec = tokens[2];
1083 String attValue = tokens[4];
1086 * ignore 'None' (e.g. for phi) or 'False' (e.g. for isHelix)
1088 if ("None".equalsIgnoreCase(attValue)
1089 || "False".equalsIgnoreCase(attValue))
1096 spec = AtomSpec.fromChimeraAtomspec(atomSpec, chimeraX);
1097 } catch (IllegalArgumentException e)
1099 System.err.println("Problem parsing atomspec " + atomSpec);
1103 String chainId = spec.getChain();
1104 String description = attValue;
1105 float score = Float.NaN;
1108 score = Float.valueOf(attValue);
1109 description = chainId;
1110 } catch (NumberFormatException e)
1112 // was not a float value
1115 String pdbFile = getPdbFileForModel(spec.getModelNumber());
1116 spec.setPdbFile(pdbFile);
1118 List<AtomSpec> atoms = Collections.singletonList(spec);
1121 * locate the mapped position in the alignment (if any)
1123 SearchResultsI sr = getSsm()
1124 .findAlignmentPositionsForStructurePositions(atoms);
1127 * expect one matched alignment position, or none
1128 * (if the structure position is not mapped)
1130 for (SearchResultMatchI m : sr.getResults())
1132 SequenceI seq = m.getSequence();
1133 int start = m.getStart();
1134 int end = m.getEnd();
1135 SequenceFeature sf = new SequenceFeature(attName, description,
1136 start, end, score, featureGroup);
1137 // todo: should SequenceFeature have an explicit property for chain?
1138 // note: repeating the action shouldn't duplicate features
1139 featureAdded |= seq.addSequenceFeature(sf);
1142 return featureAdded;
1146 * Answers the feature group name to apply to features created in Jalview from
1147 * Chimera attributes
1151 protected String getViewerFeatureGroup()
1153 // todo pull up to interface
1154 return CHIMERA_FEATURE_GROUP;
1158 public int getModelNoForFile(String pdbFile)
1160 List<ChimeraModel> foundModels = chimeraMaps.get(pdbFile);
1161 if (foundModels != null && !foundModels.isEmpty())
1163 return foundModels.get(0).getModelNumber();
1169 * Answers a (possibly empty) list of attribute names in Chimera[X], excluding
1170 * any which were added from Jalview
1174 public List<String> getChimeraAttributes()
1176 List<String> atts = chimeraManager.getAttrList();
1177 Iterator<String> it = atts.iterator();
1178 while (it.hasNext())
1180 if (it.next().startsWith(ChimeraCommands.NAMESPACE_PREFIX))
1183 * attribute added from Jalview - exclude it
1192 * Returns the file extension to use for a saved viewer session file
1196 public String getSessionFileExtension()
1201 public String getHelpURL()
1203 return "https://www.cgl.ucsf.edu/chimera/docs/UsersGuide";