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https://github.com/alicevision/Meshroom.git
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[ui] introduce UIGraph + ChunksMonitor
* extract UIGraph from Reconstruction: base class that wraps a core.Graph, without knowledge of photogrammetry pipeline * ChunksMonitor: watch NodeChunks status files for external changes to keep UI updated even when the graph is being computed externally * Reconstruction inherits UIGraph with photogrammetry specific features
This commit is contained in:
Yann Lanthony
parent
5b1b5a1b32
commit
0e08291f8a
3 changed files with 325 additions and 152 deletions
273
meshroom/ui/graph.py
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273
meshroom/ui/graph.py
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#!/usr/bin/env python
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# coding:utf-8
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import logging
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from threading import Thread
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import os
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from PySide2.QtCore import Slot, QJsonValue, QObject, QUrl, Property, Signal
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from meshroom.common.qt import QObjectListModel
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from meshroom.core import graph
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from meshroom.ui import commands
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class ChunksMonitor(QObject):
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"""
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ChunksMonitor regularly check NodeChunks' status files for modification and trigger their update on change.
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When working locally, status changes are reflected through the emission of 'statusChanged' signals.
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But when a graph is being computed externally - either via a Submitter or on another machine,
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NodeChunks status files are modified by another instance, potentially outside this machine file system scope.
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Same goes when status files are deleted/modified manually.
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Thus, for genericity, monitoring is based on regular polling and not file system watching.
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"""
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def __init__(self, chunks=(), parent=None):
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super(ChunksMonitor, self).__init__(parent)
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self.chunkByStatusFile = dict()
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self.lastModificationRecords = dict()
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self.setChunks(chunks)
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# Check status files every x seconds
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# TODO: adapt frequency according to graph compute status
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self.startTimer(5000)
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def setChunks(self, chunks):
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""" Set the list of chunks to monitor. """
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self.clear()
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for chunk in chunks:
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f = chunk.statusFile()
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self.chunkByStatusFile[f] = chunk
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# For local use, handle statusChanged emitted directly from the node chunk
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chunk.statusChanged.connect(lambda ch=chunk: self.onChunkStatusChanged(chunk))
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self.lastModificationRecords[f] = os.path.getmtime(f) if os.path.exists(f) else -1
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self.chunkStatusChanged.emit(None, -1)
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def clear(self):
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""" Clear the list of monitored chunks"""
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self.chunkByStatusFile.clear()
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self.lastModificationRecords.clear()
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def timerEvent(self, evt):
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self.checkFileTimes()
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def onChunkStatusChanged(self, chunk):
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""" React to change of status coming from the NodeChunk itself.
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Args:
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chunk (graph.NodeChunk): the chunk that emitted statusChanged signal
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"""
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f = chunk.statusFile()
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assert f in self.lastModificationRecords
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# Update record entry for this file so that it's up-to-date on next timerEvent
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self.lastModificationRecords[f] = self.getFileLastModTime(f)
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self.chunkStatusChanged.emit(chunk, chunk.status.status)
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@staticmethod
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def getFileLastModTime(f):
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""" Return 'mtime' of the file if it exists, -1 otherwise. """
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return os.path.getmtime(f) if os.path.exists(f) else -1
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def checkFileTimes(self):
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""" Check status files last modification time and compare with stored value """
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for f, t in self.lastModificationRecords.items():
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lastMod = self.getFileLastModTime(f)
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if lastMod != t:
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self.lastModificationRecords[f] = lastMod
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self.chunkByStatusFile[f].updateStatusFromCache()
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logging.debug("Status for node {} changed: {}".format(self.chunkByStatusFile[f].node,
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self.chunkByStatusFile[f].status.status))
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def isLocked(self):
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return any([ch.status.status in (graph.Status.RUNNING, graph.Status.SUBMITTED) for ch in self.chunkByStatusFile.values()])
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chunkStatusChanged = Signal(graph.NodeChunk, int)
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class UIGraph(QObject):
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""" High level wrapper over core.Graph, with additional features dedicated to UI integration.
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UIGraph exposes undoable methods on its graph and computation in a separate thread.
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It also provides a monitoring of all its computation units (NodeChunks).
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"""
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def __init__(self, filepath='', parent=None):
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super(UIGraph, self).__init__(parent)
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self._undoStack = commands.UndoStack(self)
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self._graph = graph.Graph('', self)
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self._chunksMonitor = ChunksMonitor(parent=self)
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self._chunksMonitor.chunkStatusChanged.connect(self.onChunkStatusChanged)
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self._computeThread = Thread()
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self._orderedChunks = QObjectListModel(parent=self)
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self._running = self._submitted = False
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if filepath:
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self.load(filepath)
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def setGraph(self, g):
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""" Set the internal graph. """
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if self._graph:
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self.clear()
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self._graph = g
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self._graph.updated.connect(self.onGraphUpdated)
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self._graph.update()
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self.graphChanged.emit()
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def onGraphUpdated(self):
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""" Callback to any kind of graph modification. """
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# TODO: handle this with a better granularity
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# TODO: make sure the list of chunks has changed before resetting it
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chunks = self._graph.getOrderedChunks()
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self._orderedChunks.setObjectList(chunks)
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self._chunksMonitor.setChunks(chunks)
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def clear(self):
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if self._graph:
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self._graph.deleteLater()
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self._graph = None
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self._undoStack.clear()
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def load(self, filepath):
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g = graph.Graph('')
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g.load(filepath)
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if not os.path.exists(g.cacheDir):
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os.mkdir(g.cacheDir)
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self.setGraph(g)
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@Slot(QUrl)
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def loadUrl(self, url):
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self.load(url.toLocalFile())
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@Slot(QUrl)
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def saveAs(self, url):
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self._graph.save(url.toLocalFile())
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self._undoStack.setClean()
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@Slot()
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def save(self):
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self._graph.save()
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self._undoStack.setClean()
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@Slot(graph.Node)
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def execute(self, node=None):
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if self.computing:
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return
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nodes = [node] if node else None
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self._computeThread = Thread(target=self._execute, args=(nodes,))
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self._computeThread.start()
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def _execute(self, nodes):
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self.computeStatusChanged.emit()
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try:
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graph.execute(self._graph, nodes)
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except Exception as e:
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logging.error("Error during Graph execution {}".format(e))
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finally:
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self.computeStatusChanged.emit()
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@Slot()
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def stopExecution(self):
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if not self.isComputingLocally():
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return
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self._graph.stopExecution()
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self._computeThread.join()
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self.computeStatusChanged.emit()
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@Slot()
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def submit(self):
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""" Submit the whole graph to the default Submitter. """
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self.save() # graph must be saved before being submitted
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graph.submitGraph(self._graph, os.environ.get('MESHROOM_DEFAULT_SUBMITTER', ''))
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def onChunkStatusChanged(self, chunk, status):
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# update graph computing status
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running = any([ch.status.status == graph.Status.RUNNING for ch in self._orderedChunks])
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submitted = any([ch.status.status == graph.Status.SUBMITTED for ch in self._orderedChunks])
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if self._running != running or self._submitted != submitted:
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self._running = running
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self._submitted = submitted
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self.computeStatusChanged.emit()
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def isComputing(self):
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""" Whether is graph is being computed, either locally or externally. """
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return self.isComputingLocally() or self.isComputingExternally()
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def isComputingExternally(self):
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""" Whether this graph is being computed externally. """
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return (self._running or self._submitted) and not self.isComputingLocally()
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def isComputingLocally(self):
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""" Whether this graph is being computed locally (i.e computation can be stopped). """
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return self._computeThread.is_alive()
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def push(self, command):
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""" Try and push the given command to the undo stack.
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Args:
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command (commands.UndoCommand): the command to push
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"""
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self._undoStack.tryAndPush(command)
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def groupedGraphModification(self, title):
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""" Get a GroupedGraphModification for this Reconstruction.
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Args:
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title (str): the title of the macro command
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Returns:
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GroupedGraphModification: the instantiated context manager
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"""
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return commands.GroupedGraphModification(self._graph, self._undoStack, title)
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@Slot(str)
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def addNode(self, nodeType):
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self.push(commands.AddNodeCommand(self._graph, nodeType))
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@Slot(graph.Node)
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def removeNode(self, node):
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self.push(commands.RemoveNodeCommand(self._graph, node))
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@Slot(graph.Attribute, graph.Attribute)
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def addEdge(self, src, dst):
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if isinstance(dst, graph.ListAttribute):
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with self.groupedGraphModification("Insert and Add Edge on {}".format(dst.fullName())):
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self.appendAttribute(dst)
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self.push(commands.AddEdgeCommand(self._graph, src, dst[-1]))
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else:
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self.push(commands.AddEdgeCommand(self._graph, src, dst))
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@Slot(graph.Edge)
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def removeEdge(self, edge):
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if isinstance(edge.dst.root, graph.ListAttribute):
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with self.groupedGraphModification("Remove Edge and Delete {}".format(edge.dst.fullName())):
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self.push(commands.RemoveEdgeCommand(self._graph, edge))
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self.removeAttribute(edge.dst)
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else:
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self.push(commands.RemoveEdgeCommand(self._graph, edge))
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@Slot(graph.Attribute, "QVariant")
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def setAttribute(self, attribute, value):
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self.push(commands.SetAttributeCommand(self._graph, attribute, value))
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@Slot(graph.Attribute, QJsonValue)
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def appendAttribute(self, attribute, value=QJsonValue()):
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if value.isArray():
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pyValue = value.toArray().toVariantList()
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else:
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pyValue = None if value.isNull() else value.toObject()
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self.push(commands.ListAttributeAppendCommand(self._graph, attribute, pyValue))
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@Slot(graph.Attribute)
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def removeAttribute(self, attribute):
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self.push(commands.ListAttributeRemoveCommand(self._graph, attribute))
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undoStack = Property(QObject, lambda self: self._undoStack, constant=True)
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graphChanged = Signal()
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graph = Property(graph.Graph, lambda self: self._graph, notify=graphChanged)
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computeStatusChanged = Signal()
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computing = Property(bool, isComputing, notify=computeStatusChanged)
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computingExternally = Property(bool, isComputingExternally, notify=computeStatusChanged)
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computingLocally = Property(bool, isComputingLocally, notify=computeStatusChanged)
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chunksMonitor = Property(ChunksMonitor, lambda self: self._chunksMonitor, constant=True)
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# The list of NodeChunks in this graph sorted by processing order
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orderedChunks = Property(QObject, lambda self: self._orderedChunks, constant=True)
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lockedChanged = Signal()
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@ -12,7 +12,7 @@ ApplicationWindow {
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width: 1280
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height: 720
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visible: true
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title: (_reconstruction.filepath ? _reconstruction.filepath : "Untitled") + (_reconstruction.undoStack.clean ? "" : "*") + " - Meshroom"
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title: (_reconstruction.graph.filepath ? _reconstruction.graph.filepath : "Untitled") + (_reconstruction.undoStack.clean ? "" : "*") + " - Meshroom"
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font.pointSize: 10
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property variant node: null
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@ -190,7 +190,7 @@ ApplicationWindow {
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id: saveAction
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text: "Save"
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shortcut: "Ctrl+S"
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enabled: _reconstruction.filepath != "" && !_reconstruction.undoStack.clean
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enabled: _reconstruction.graph.filepath != "" && !_reconstruction.undoStack.clean
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onTriggered: _reconstruction.save()
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}
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Action {
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@ -249,7 +249,7 @@ ApplicationWindow {
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}
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Button {
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text: "Stop"
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enabled: _reconstruction.computing
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enabled: _reconstruction.computingLocally
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onClicked: _reconstruction.stopExecution()
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}
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}
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@ -2,159 +2,50 @@ import logging
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import os
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from threading import Thread
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from PySide2.QtCore import QObject, Slot, Property, Signal, QJsonValue, QUrl
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from PySide2.QtCore import QObject, Slot, Property, Signal
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from meshroom import multiview
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from meshroom.core import graph, defaultCacheFolder, cacheFolderName
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from meshroom.ui import commands
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from meshroom.core import graph
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from meshroom.ui.graph import UIGraph
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class Reconstruction(QObject):
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def __init__(self, graphFilepath="", parent=None):
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super(Reconstruction, self).__init__(parent)
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self._graph = None
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self._undoStack = commands.UndoStack(self)
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self._computeThread = Thread()
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self._filepath = graphFilepath
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if self._filepath:
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self.load(self._filepath)
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class Reconstruction(UIGraph):
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"""
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Specialization of a UIGraph designed to manage a 3D reconstruction.
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"""
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def __init__(self, graphFilepath='', parent=None):
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super(Reconstruction, self).__init__(graphFilepath, parent)
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self._buildIntrinsicsThread = None
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self._endChunk = None
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self._meshFile = ''
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self.intrinsicsBuilt.connect(self.onIntrinsicsAvailable)
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self.graphChanged.connect(self.onGraphChanged)
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if graphFilepath:
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self.onGraphChanged()
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else:
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self.new()
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self._buildIntrinsicsThread = None
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self.intrinsicsBuilt.connect(self.onIntrinsicsAvailable)
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@Slot()
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def new(self):
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self.clear()
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self._graph = multiview.photogrammetryPipeline()
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self._graph.cacheDir = defaultCacheFolder
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self._graph.update()
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self.graphChanged.emit()
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""" Create a new photogrammetry pipeline. """
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self.setGraph(multiview.photogrammetryPipeline())
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def clear(self):
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if self._graph:
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self._graph.clear()
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self._graph.deleteLater()
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self._graph = None
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self.setFilepath("")
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self._undoStack.clear()
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def onGraphChanged(self):
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""" React to the change of the internal graph. """
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self._endChunk = None
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self.setMeshFile('')
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def setFilepath(self, path):
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if self._filepath == path:
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if not self._graph:
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return
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self._filepath = path
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self.filepathChanged.emit()
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def push(self, command):
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""" Try and push the given command to the undo stack.
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Args:
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command (commands.UndoCommand): the command to push
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"""
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self._undoStack.tryAndPush(command)
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def groupedGraphModification(self, title):
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""" Get a GroupedGraphModification for this Reconstruction.
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Args:
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title (str): the title of the macro command
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Returns:
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GroupedGraphModification: the instantiated context manager
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"""
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return commands.GroupedGraphModification(self._graph, self._undoStack, title)
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@Slot(str)
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def addNode(self, nodeType):
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self.push(commands.AddNodeCommand(self._graph, nodeType))
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@Slot(graph.Node)
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def removeNode(self, node):
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self.push(commands.RemoveNodeCommand(self._graph, node))
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@Slot(graph.Attribute, graph.Attribute)
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def addEdge(self, src, dst):
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if isinstance(dst, graph.ListAttribute):
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with self.groupedGraphModification("Insert and Add Edge on {}".format(dst.fullName())):
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self.appendAttribute(dst)
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self.push(commands.AddEdgeCommand(self._graph, src, dst[-1]))
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else:
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self.push(commands.AddEdgeCommand(self._graph, src, dst))
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@Slot(graph.Edge)
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def removeEdge(self, edge):
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if isinstance(edge.dst.root, graph.ListAttribute):
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with self.groupedGraphModification("Remove Edge and Delete {}".format(edge.dst.fullName())):
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self.push(commands.RemoveEdgeCommand(self._graph, edge))
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self.removeAttribute(edge.dst)
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else:
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self.push(commands.RemoveEdgeCommand(self._graph, edge))
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@Slot(graph.Attribute, "QVariant")
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def setAttribute(self, attribute, value):
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self.push(commands.SetAttributeCommand(self._graph, attribute, value))
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@Slot(graph.Attribute, QJsonValue)
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def appendAttribute(self, attribute, value=QJsonValue()):
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if value.isArray():
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pyValue = value.toArray().toVariantList()
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else:
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pyValue = None if value.isNull() else value.toObject()
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self.push(commands.ListAttributeAppendCommand(self._graph, attribute, pyValue))
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@Slot(graph.Attribute)
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def removeAttribute(self, attribute):
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self.push(commands.ListAttributeRemoveCommand(self._graph, attribute))
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def load(self, filepath):
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self.clear()
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self._graph = graph.Graph("")
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self._graph.load(filepath)
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self.setFilepath(filepath)
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self.graphChanged.emit()
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@Slot(QUrl)
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def loadUrl(self, url):
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self.load(url.toLocalFile())
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@Slot(QUrl)
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def saveAs(self, url):
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self.setFilepath(url.toLocalFile())
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self.save()
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@Slot()
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def save(self):
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self._graph.save(self._filepath)
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self._graph.cacheDir = os.path.join(os.path.dirname(self._filepath), cacheFolderName)
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self._undoStack.setClean()
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@Slot(graph.Node)
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def execute(self, node=None):
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if self.computing:
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return
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nodes = [node] if node else self._graph.getLeaves()
|
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self._computeThread = Thread(target=self._execute, args=(nodes,))
|
||||
self._computeThread.start()
|
||||
|
||||
def _execute(self, nodes):
|
||||
self.computingChanged.emit()
|
||||
try:
|
||||
graph.execute(self._graph, nodes)
|
||||
except Exception as e:
|
||||
import traceback
|
||||
logging.error("Error during Graph execution: {}".format(traceback.format_exc()))
|
||||
finally:
|
||||
self.computingChanged.emit()
|
||||
|
||||
@Slot()
|
||||
def stopExecution(self):
|
||||
if not self.computing:
|
||||
return
|
||||
self._graph.stopExecution()
|
||||
self._computeThread.join()
|
||||
self.computingChanged.emit()
|
||||
endNode = self._graph.findNode("Texturing")
|
||||
self._endChunk = endNode.getChunks()[0] # type: graph.NodeChunk
|
||||
endNode.outputMesh.valueChanged.connect(self.updateMeshFile)
|
||||
self._endChunk.statusChanged.connect(self.updateMeshFile)
|
||||
self.updateMeshFile()
|
||||
except KeyError:
|
||||
self._endChunk = None
|
||||
|
||||
@staticmethod
|
||||
def runAsync(func, args=(), kwargs=None):
|
||||
|
|
@ -162,13 +53,17 @@ class Reconstruction(QObject):
|
|||
thread.start()
|
||||
return thread
|
||||
|
||||
undoStack = Property(QObject, lambda self: self._undoStack, constant=True)
|
||||
graphChanged = Signal()
|
||||
graph = Property(graph.Graph, lambda self: self._graph, notify=graphChanged)
|
||||
computingChanged = Signal()
|
||||
computing = Property(bool, lambda self: self._computeThread.is_alive(), notify=computingChanged)
|
||||
filepathChanged = Signal()
|
||||
filepath = Property(str, lambda self: self._filepath, notify=filepathChanged)
|
||||
def updateMeshFile(self):
|
||||
if self._endChunk and self._endChunk.status.status == graph.Status.SUCCESS:
|
||||
self.setMeshFile(self._endChunk.node.outputMesh.value)
|
||||
else:
|
||||
self.setMeshFile('')
|
||||
|
||||
def setMeshFile(self, mf):
|
||||
if self._meshFile == mf:
|
||||
return
|
||||
self._meshFile = mf
|
||||
self.meshFileChanged.emit()
|
||||
|
||||
@Slot(QObject)
|
||||
def handleFilesDrop(self, drop):
|
||||
|
|
@ -217,8 +112,13 @@ class Reconstruction(QObject):
|
|||
self.setAttribute(cameraInit.viewpoints, views)
|
||||
self.setAttribute(cameraInit.intrinsics, intrinsics)
|
||||
|
||||
intrinsicsBuilt = Signal(list, list)
|
||||
def isBuildingIntrinsics(self):
|
||||
""" Whether intrinsics are being built """
|
||||
return self._buildIntrinsicsThread and self._buildIntrinsicsThread.isAlive()
|
||||
|
||||
intrinsicsBuilt = Signal(list, list)
|
||||
buildingIntrinsicsChanged = Signal()
|
||||
buildingIntrinsics = Property(bool, lambda self: self._buildIntrinsicsThread and self._buildIntrinsicsThread.isAlive(),
|
||||
notify=buildingIntrinsicsChanged)
|
||||
buildingIntrinsics = Property(bool, isBuildingIntrinsics, notify=buildingIntrinsicsChanged)
|
||||
meshFileChanged = Signal()
|
||||
meshFile = Property(str, lambda self: self._meshFile, notify=meshFileChanged)
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue