guiqwt.cross_section¶

The cross_section module provides cross section related objects:

guiqwt.cross_section.XCrossSection: the X-axis cross-section panel
guiqwt.cross_section.YCrossSection: the Y-axis cross-section panel
and other related objects which are exclusively used by the cross-section panels

Example¶

Simple cross-section demo:

# -*- coding: utf-8 -*-
#
# Copyright © 2009-2010 CEA
# Pierre Raybaut
# Licensed under the terms of the CECILL License
# (see guiqwt/__init__.py for details)

"""Renders a cross section chosen by a cross marker"""

# guitest: show

import os.path as osp, numpy as np

from guiqwt.plot import ImageDialog
from guiqwt.builder import make


def create_window():
    win = ImageDialog(
        edit=False,
        toolbar=True,
        wintitle="Cross sections test",
        options=dict(show_xsection=True, show_ysection=True, show_itemlist=True),
    )
    win.resize(800, 600)
    return win


def test():
    """Test"""
    # -- Create QApplication
    import guidata

    _app = guidata.qapplication()
    # --
    filename = osp.join(osp.dirname(__file__), "brain.png")
    win = create_window()
    image = make.image(filename=filename, colormap="bone")
    data2 = np.array(image.data.T[200:], copy=True)
    image2 = make.image(data2, title="Modified", alpha_mask=True)
    plot = win.get_plot()
    plot.add_item(image)
    plot.add_item(image2, z=1)
    win.exec_()


if __name__ == "__main__":
    test()

Reference¶

class guiqwt.cross_section.XCrossSection(parent=None)[source]¶

X-axis cross section widget

CrossSectionPlotKlass¶: alias of XCrossSectionPlot

closeEvent(self, a0: QCloseEvent)[source]¶

class PaintDeviceMetric¶

class RenderFlag¶

class RenderFlags¶
class RenderFlags(f: Union[QWidget.RenderFlags, QWidget.RenderFlag])
class RenderFlags(a0: QWidget.RenderFlags)

SIG_VISIBILITY_CHANGED¶: Signal emitted by PanelWidget when its visibility has changed (arg: bool)

acceptDrops(self) → bool¶

accessibleDescription(self) → str¶

accessibleName(self) → str¶

actionEvent(self, a0: QActionEvent)¶

actions(self) → List[QAction]¶

activateWindow(self)¶

addAction(self, action: QAction)¶

addActions(self, actions: Iterable[QAction])¶

adjustSize(self)¶

autoFillBackground(self) → bool¶

backgroundRole(self) → QPalette.ColorRole¶

baseSize(self) → QSize¶

blockSignals(self, b: bool) → bool¶

changeEvent(self, a0: QEvent)¶

childAt(self, p: QPoint) → QWidget¶
childAt(self, ax: int, ay: int) → QWidget

childEvent(self, a0: QChildEvent)¶

children(self) → List[QObject]¶

childrenRect(self) → QRect¶

childrenRegion(self) → QRegion¶

clearFocus(self)¶

clearMask(self)¶

close(self) → bool¶

colorCount(self) → int¶

configure_panel()¶: Configure panel

connectNotify(self, signal: QMetaMethod)¶

contentsMargins(self) → QMargins¶

contentsRect(self) → QRect¶

contextMenuEvent(self, a0: QContextMenuEvent)¶

contextMenuPolicy(self) → Qt.ContextMenuPolicy¶

create(self, window: PyQt5.sip.voidptr = 0, initializeWindow: bool = True, destroyOldWindow: bool = True)¶

createWindowContainer(window: QWindow, parent: Optional[QWidget] = None, flags: Union[Qt.WindowFlags, Qt.WindowType] = 0) → QWidget¶

create_dockwidget(title: str) → tuple[PyQt5.QtWidgets.QDockWidget, PyQt5.QtCore.Qt.DockWidgetArea]¶

Add to parent QMainWindow as a dock widget

Args:: title (str): Dockwidget title
Returns:: tuple[QDockWidget, Qt.DockWidgetArea]: Dockwidget and location

cs_curve_has_changed(curve)¶: Cross section curve has just changed

cursor(self) → QCursor¶

customEvent(self, a0: QEvent)¶

deleteLater(self)¶

depth(self) → int¶

destroy(self, destroyWindow: bool = True, destroySubWindows: bool = True)¶

devType(self) → int¶

devicePixelRatio(self) → int¶

devicePixelRatioF(self) → float¶

devicePixelRatioFScale() → float¶

disconnect(a0: QMetaObject.Connection) → bool¶
disconnect(self) → None

disconnectNotify(self, signal: QMetaMethod)¶

dragEnterEvent(self, a0: QDragEnterEvent)¶

dragLeaveEvent(self, a0: QDragLeaveEvent)¶

dragMoveEvent(self, a0: QDragMoveEvent)¶

dropEvent(self, a0: QDropEvent)¶

dumpObjectInfo(self)¶

dumpObjectTree(self)¶

dynamicPropertyNames(self) → List[QByteArray]¶

effectiveWinId(self) → PyQt5.sip.voidptr¶

ensurePolished(self)¶

enterEvent(self, a0: QEvent)¶

event(self, a0: QEvent) → bool¶

eventFilter(self, a0: QObject, a1: QEvent) → bool¶

find(a0: PyQt5.sip.voidptr) → QWidget¶

findChild(self, type: type, name: str = '', options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → QObject¶
findChild(self, types: Tuple, name: str = '', options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → QObject

findChildren(self, type: type, name: str = '', options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → List[QObject]¶
findChildren(self, types: Tuple, name: str = '', options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, regExp: QRegExp, options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, regExp: QRegExp, options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) → List[QObject]

focusInEvent(self, a0: QFocusEvent)¶

focusNextChild(self) → bool¶

focusNextPrevChild(self, next: bool) → bool¶

focusOutEvent(self, a0: QFocusEvent)¶

focusPolicy(self) → Qt.FocusPolicy¶

focusPreviousChild(self) → bool¶

focusProxy(self) → QWidget¶

focusWidget(self) → QWidget¶

font(self) → QFont¶

fontInfo(self) → QFontInfo¶

fontMetrics(self) → QFontMetrics¶

foregroundRole(self) → QPalette.ColorRole¶

frameGeometry(self) → QRect¶

frameSize(self) → QSize¶

geometry(self) → QRect¶

getContentsMargins(self) → Tuple[int, int, int, int]¶

get_focus_widget() → PyQt5.QtWidgets.QWidget | None¶: Return widget to focus when dockwidget is visible

grab(self, rectangle: QRect = QRect(QPoint(0, 0), QSize(-1, -1))) → QPixmap¶

grabGesture(self, type: Qt.GestureType, flags: Union[Qt.GestureFlags, Qt.GestureFlag] = Qt.GestureFlags())¶

grabKeyboard(self)¶

grabMouse(self)¶
grabMouse(self, a0: Union[QCursor, Qt.CursorShape]) → None

grabShortcut(self, key: Union[QKeySequence, QKeySequence.StandardKey, str, int], context: Qt.ShortcutContext = Qt.WindowShortcut) → int¶

graphicsEffect(self) → QGraphicsEffect¶

graphicsProxyWidget(self) → QGraphicsProxyWidget¶

hasFocus(self) → bool¶

hasHeightForWidth(self) → bool¶

hasMouseTracking(self) → bool¶

hasTabletTracking(self) → bool¶

height(self) → int¶

heightForWidth(self, a0: int) → int¶

heightMM(self) → int¶

hide(self)¶

hideEvent(self, a0: QHideEvent)¶

inherits(self, classname: str) → bool¶

initPainter(self, painter: QPainter)¶

inputMethodEvent(self, a0: QInputMethodEvent)¶

inputMethodHints(self) → Qt.InputMethodHints¶

inputMethodQuery(self, a0: Qt.InputMethodQuery) → Any¶

insertAction(self, before: QAction, action: QAction)¶

insertActions(self, before: QAction, actions: Iterable[QAction])¶

installEventFilter(self, a0: QObject)¶

isActiveWindow(self) → bool¶

isAncestorOf(self, child: QWidget) → bool¶

isEnabled(self) → bool¶

isEnabledTo(self, a0: QWidget) → bool¶

isFullScreen(self) → bool¶

isHidden(self) → bool¶

isLeftToRight(self) → bool¶

isMaximized(self) → bool¶

isMinimized(self) → bool¶

isModal(self) → bool¶

isRightToLeft(self) → bool¶

isSignalConnected(self, signal: QMetaMethod) → bool¶

isVisible(self) → bool¶

isVisibleTo(self, a0: QWidget) → bool¶

isWidgetType(self) → bool¶

isWindow(self) → bool¶

isWindowModified(self) → bool¶

isWindowType(self) → bool¶

is_visible() → bool¶: Return dockwidget visibility state

keyPressEvent(self, a0: QKeyEvent)¶

keyReleaseEvent(self, a0: QKeyEvent)¶

keyboardGrabber() → QWidget¶

killTimer(self, id: int)¶

layout(self) → QLayout¶

layoutDirection(self) → Qt.LayoutDirection¶

leaveEvent(self, a0: QEvent)¶

locale(self) → QLocale¶

logicalDpiX(self) → int¶

logicalDpiY(self) → int¶

lower(self)¶

mapFrom(self, a0: QWidget, a1: QPoint) → QPoint¶

mapFromGlobal(self, a0: QPoint) → QPoint¶

mapFromParent(self, a0: QPoint) → QPoint¶

mapTo(self, a0: QWidget, a1: QPoint) → QPoint¶

mapToGlobal(self, a0: QPoint) → QPoint¶

mapToParent(self, a0: QPoint) → QPoint¶

mask(self) → QRegion¶

maximumHeight(self) → int¶

maximumSize(self) → QSize¶

maximumWidth(self) → int¶

metaObject(self) → QMetaObject¶

metric(self, a0: QPaintDevice.PaintDeviceMetric) → int¶

minimumHeight(self) → int¶

minimumSize(self) → QSize¶

minimumSizeHint(self) → QSize¶

minimumWidth(self) → int¶

mouseDoubleClickEvent(self, a0: QMouseEvent)¶

mouseGrabber() → QWidget¶

mouseMoveEvent(self, a0: QMouseEvent)¶

mousePressEvent(self, a0: QMouseEvent)¶

mouseReleaseEvent(self, a0: QMouseEvent)¶

move(self, a0: QPoint)¶
move(self, ax: int, ay: int) → None

moveEvent(self, a0: QMoveEvent)¶

moveToThread(self, thread: QThread)¶

nativeEvent(self, eventType: Union[QByteArray, bytes, bytearray], message: PyQt5.sip.voidptr) → Tuple[bool, int]¶

nativeParentWidget(self) → QWidget¶

nextInFocusChain(self) → QWidget¶

normalGeometry(self) → QRect¶

objectName(self) → str¶

overrideWindowFlags(self, type: Union[Qt.WindowFlags, Qt.WindowType])¶

overrideWindowState(self, state: Union[Qt.WindowStates, Qt.WindowState])¶

paintEngine(self) → QPaintEngine¶

paintEvent(self, a0: QPaintEvent)¶

paintingActive(self) → bool¶

palette(self) → QPalette¶

parent(self) → QObject¶

parentWidget(self) → QWidget¶

property parent_widget: PyQt5.QtWidgets.QWidget | None¶: Return associated QWidget parent

physicalDpiX(self) → int¶

physicalDpiY(self) → int¶

pos(self) → QPoint¶

previousInFocusChain(self) → QWidget¶

property(self, name: str) → Any¶

pyqtConfigure(...)¶: Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

raise_(self)¶

receivers(self, signal: PYQT_SIGNAL) → int¶

rect(self) → QRect¶

register_panel(manager)¶: Register panel to plot manager

releaseKeyboard(self)¶

releaseMouse(self)¶

releaseShortcut(self, id: int)¶

removeAction(self, action: QAction)¶

removeEventFilter(self, a0: QObject)¶

render(self, target: QPaintDevice, targetOffset: QPoint = QPoint(), sourceRegion: QRegion = QRegion(), flags: Union[QWidget.RenderFlags, QWidget.RenderFlag] = QWidget.RenderFlags(QWidget.RenderFlag.DrawWindowBackground | QWidget.RenderFlag.DrawChildren))¶
render(self, painter: QPainter, targetOffset: QPoint = QPoint(), sourceRegion: QRegion = QRegion(), flags: Union[QWidget.RenderFlags, QWidget.RenderFlag] = QWidget.RenderFlags(QWidget.RenderFlag.DrawWindowBackground | QWidget.RenderFlag.DrawChildren)) → None

repaint(self)¶
repaint(self, x: int, y: int, w: int, h: int) → None
repaint(self, a0: QRect) → None
repaint(self, a0: QRegion) → None

resize(self, a0: QSize)¶
resize(self, w: int, h: int) → None

resizeEvent(self, a0: QResizeEvent)¶

restoreGeometry(self, geometry: Union[QByteArray, bytes, bytearray]) → bool¶

saveGeometry(self) → QByteArray¶

screen(self) → QScreen¶

scroll(self, dx: int, dy: int)¶
scroll(self, dx: int, dy: int, a2: QRect) → None

sender(self) → QObject¶

senderSignalIndex(self) → int¶

setAcceptDrops(self, on: bool)¶

setAccessibleDescription(self, description: str)¶

setAccessibleName(self, name: str)¶

setAttribute(self, attribute: Qt.WidgetAttribute, on: bool = True)¶

setAutoFillBackground(self, enabled: bool)¶

setBackgroundRole(self, a0: QPalette.ColorRole)¶

setBaseSize(self, basew: int, baseh: int)¶
setBaseSize(self, s: QSize) → None

setContentsMargins(self, left: int, top: int, right: int, bottom: int)¶
setContentsMargins(self, margins: QMargins) → None

setContextMenuPolicy(self, policy: Qt.ContextMenuPolicy)¶

setCursor(self, a0: Union[QCursor, Qt.CursorShape])¶

setDisabled(self, a0: bool)¶

setEnabled(self, a0: bool)¶

setFixedHeight(self, h: int)¶

setFixedSize(self, a0: QSize)¶
setFixedSize(self, w: int, h: int) → None

setFixedWidth(self, w: int)¶

setFocus(self)¶
setFocus(self, reason: Qt.FocusReason) → None

setFocusPolicy(self, policy: Qt.FocusPolicy)¶

setFocusProxy(self, a0: QWidget)¶

setFont(self, a0: QFont)¶

setForegroundRole(self, a0: QPalette.ColorRole)¶

setGeometry(self, a0: QRect)¶
setGeometry(self, ax: int, ay: int, aw: int, ah: int) → None

setGraphicsEffect(self, effect: QGraphicsEffect)¶

setHidden(self, hidden: bool)¶

setInputMethodHints(self, hints: Union[Qt.InputMethodHints, Qt.InputMethodHint])¶

setLayout(self, a0: QLayout)¶

setLayoutDirection(self, direction: Qt.LayoutDirection)¶

setLocale(self, locale: QLocale)¶

setMask(self, a0: QBitmap)¶
setMask(self, a0: QRegion) → None

setMaximumHeight(self, maxh: int)¶

setMaximumSize(self, maxw: int, maxh: int)¶
setMaximumSize(self, s: QSize) → None

setMaximumWidth(self, maxw: int)¶

setMinimumHeight(self, minh: int)¶

setMinimumSize(self, minw: int, minh: int)¶
setMinimumSize(self, s: QSize) → None

setMinimumWidth(self, minw: int)¶

setMouseTracking(self, enable: bool)¶

setObjectName(self, name: str)¶

setPalette(self, a0: QPalette)¶

setParent(self, parent: QWidget)¶
setParent(self, parent: QWidget, f: Union[Qt.WindowFlags, Qt.WindowType]) → None

setProperty(self, name: str, value: Any) → bool¶

setShortcutAutoRepeat(self, id: int, enabled: bool = True)¶

setShortcutEnabled(self, id: int, enabled: bool = True)¶

setSizeIncrement(self, w: int, h: int)¶
setSizeIncrement(self, s: QSize) → None

setSizePolicy(self, a0: QSizePolicy)¶
setSizePolicy(self, hor: QSizePolicy.Policy, ver: QSizePolicy.Policy) → None

setStatusTip(self, a0: str)¶

setStyle(self, a0: QStyle)¶

setStyleSheet(self, styleSheet: str)¶

setTabOrder(a0: QWidget, a1: QWidget)¶

setTabletTracking(self, enable: bool)¶

setToolTip(self, a0: str)¶

setToolTipDuration(self, msec: int)¶

setUpdatesEnabled(self, enable: bool)¶

setVisible(self, visible: bool)¶

setWhatsThis(self, a0: str)¶

setWindowFilePath(self, filePath: str)¶

setWindowFlag(self, a0: Qt.WindowType, on: bool = True)¶

setWindowFlags(self, type: Union[Qt.WindowFlags, Qt.WindowType])¶

setWindowIcon(self, icon: QIcon)¶

setWindowIconText(self, a0: str)¶

setWindowModality(self, windowModality: Qt.WindowModality)¶

setWindowModified(self, a0: bool)¶

setWindowOpacity(self, level: float)¶

setWindowRole(self, a0: str)¶

setWindowState(self, state: Union[Qt.WindowStates, Qt.WindowState])¶

setWindowTitle(self, a0: str)¶

setup_dockwidget(location: PyQt5.QtCore.Qt.DockWidgetArea | None = None, features: PyQt5.QtWidgets.QDockWidget.DockWidgetFeatures | None = None, allowed_areas: PyQt5.QtCore.Qt.DockWidgetAreas | None = None) → None¶

Setup dockwidget parameters

Args:: location (Qt.DockWidgetArea): Dockwidget location features (QDockWidget.DockWidgetFeatures): Dockwidget features allowed_areas (Qt.DockWidgetAreas): Dockwidget allowed areas

sharedPainter(self) → QPainter¶

show(self)¶

showEvent(self, a0: QShowEvent)¶

showFullScreen(self)¶

showMaximized(self)¶

showMinimized(self)¶

showNormal(self)¶

signalsBlocked(self) → bool¶

size(self) → QSize¶

sizeHint(self) → QSize¶

sizeIncrement(self) → QSize¶

sizePolicy(self) → QSizePolicy¶

stackUnder(self, a0: QWidget)¶

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int¶

statusTip(self) → str¶

style(self) → QStyle¶

styleSheet(self) → str¶

tabletEvent(self, a0: QTabletEvent)¶

testAttribute(self, attribute: Qt.WidgetAttribute) → bool¶

thread(self) → QThread¶

timerEvent(self, a0: QTimerEvent)¶

toolTip(self) → str¶

toolTipDuration(self) → int¶

tr(self, sourceText: str, disambiguation: Optional[str] = None, n: int = -1) → str¶

underMouse(self) → bool¶

ungrabGesture(self, type: Qt.GestureType)¶

unsetCursor(self)¶

unsetLayoutDirection(self)¶

unsetLocale(self)¶

update(self)¶
update(self, a0: QRect) → None
update(self, a0: QRegion) → None
update(self, ax: int, ay: int, aw: int, ah: int) → None

updateGeometry(self)¶

updateMicroFocus(self)¶

update_plot(obj=None)¶

Update cross section curve(s) associated to object obj

obj may be a marker or a rectangular shape (see guiqwt.tools.CrossSectionTool and guiqwt.tools.AverageCrossSectionTool)

If obj is None, update the cross sections of the last active object

updatesEnabled(self) → bool¶

visibility_changed(enable)¶: DockWidget visibility has changed

visibleRegion(self) → QRegion¶

whatsThis(self) → str¶

wheelEvent(self, a0: QWheelEvent)¶

width(self) → int¶

widthMM(self) → int¶

winId(self) → PyQt5.sip.voidptr¶

window(self) → QWidget¶

windowFilePath(self) → str¶

windowFlags(self) → Qt.WindowFlags¶

windowHandle(self) → QWindow¶

windowIcon(self) → QIcon¶

windowIconText(self) → str¶

windowModality(self) → Qt.WindowModality¶

windowOpacity(self) → float¶

windowRole(self) → str¶

windowState(self) → Qt.WindowStates¶

windowTitle(self) → str¶

windowType(self) → Qt.WindowType¶

x(self) → int¶

y(self) → int¶

class guiqwt.cross_section.YCrossSection(parent=None, position='right', xsection_pos='top')[source]¶

Y-axis cross section widget parent (QWidget): parent widget position (string): “left” or “right”

CrossSectionPlotKlass¶: alias of YCrossSectionPlot

class PaintDeviceMetric¶

class RenderFlag¶

class RenderFlags¶
class RenderFlags(f: Union[QWidget.RenderFlags, QWidget.RenderFlag])
class RenderFlags(a0: QWidget.RenderFlags)

SIG_VISIBILITY_CHANGED¶: Signal emitted by PanelWidget when its visibility has changed (arg: bool)

acceptDrops(self) → bool¶

accessibleDescription(self) → str¶

accessibleName(self) → str¶

actionEvent(self, a0: QActionEvent)¶

actions(self) → List[QAction]¶

activateWindow(self)¶

addAction(self, action: QAction)¶

addActions(self, actions: Iterable[QAction])¶

adjustSize(self)¶

autoFillBackground(self) → bool¶

backgroundRole(self) → QPalette.ColorRole¶

baseSize(self) → QSize¶

blockSignals(self, b: bool) → bool¶

changeEvent(self, a0: QEvent)¶

childAt(self, p: QPoint) → QWidget¶
childAt(self, ax: int, ay: int) → QWidget

childEvent(self, a0: QChildEvent)¶

children(self) → List[QObject]¶

childrenRect(self) → QRect¶

childrenRegion(self) → QRegion¶

clearFocus(self)¶

clearMask(self)¶

close(self) → bool¶

closeEvent(self, a0: QCloseEvent)¶

colorCount(self) → int¶

configure_panel()¶: Configure panel

connectNotify(self, signal: QMetaMethod)¶

contentsMargins(self) → QMargins¶

contentsRect(self) → QRect¶

contextMenuEvent(self, a0: QContextMenuEvent)¶

contextMenuPolicy(self) → Qt.ContextMenuPolicy¶

create(self, window: PyQt5.sip.voidptr = 0, initializeWindow: bool = True, destroyOldWindow: bool = True)¶

createWindowContainer(window: QWindow, parent: Optional[QWidget] = None, flags: Union[Qt.WindowFlags, Qt.WindowType] = 0) → QWidget¶