forked from hamish2014/FreeCAD_drawing_dimensioning
/
halfLinearDimension.py
176 lines (161 loc) · 8.29 KB
/
halfLinearDimension.py
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from dimensioning import *
from dimensioning import iconPath # not imported with * directive
import selectionOverlay, previewDimension
from dimensionSvgConstructor import linearDimensionSVG, halfLinearDimensionSVG, rotate2D, distanceBetweenParallelsSVG
dimensioning = DimensioningProcessTracker()
def selectDimensioningPoint( event, referer, elementXML, elementParms, elementViewObject ):
if isinstance(referer,selectionOverlay.PointSelectionGraphicsItem):
x, y = elementParms['x'], elementParms['y']
referer.lockSelection()
if dimensioning.stage == 0: #then selectPoint1
dimensioning.point1 = x,y
debugPrint(2, 'point1 set to x=%3.1f y=%3.1f' % (x,y))
dimensioning.stage = 1
selectionOverlay.hideSelectionGraphicsItems(
lambda gi: isinstance(gi, selectionOverlay.LineSelectionGraphicsItem)
)
else:
dimensioning.point2 = x,y
debugPrint(2, 'point2 set to x=%3.1f y=%3.1f' % (x,y))
dimensioning.stage = 2
dimensioning.dimScale = 1 / elementXML.rootNode().scaling() / UnitConversionFactor()
selectionOverlay.hideSelectionGraphicsItems()
previewDimension.initializePreview( dimensioning.drawingVars, clickFunPreview, hoverFunPreview )
else:#then line
if dimensioning.stage == 0:
x1,y1,x2,y2 = [ elementParms[k] for k in [ 'x1', 'y1', 'x2', 'y2' ] ]
debugPrint(2,'selecting line x1=%3.1f y1=%3.1f, x2=%3.1f y2=%3.1f' % (x1,y1,x2,y2))
dimensioning.point1 = x1,y1
dimensioning.point2 = x2,y2
dimensioning.stage = 2
dimensioning.dimScale = 1 / elementXML.rootNode().scaling() / UnitConversionFactor()
lineSelected_hideSelectionGraphicsItems(elementParms, elementViewObject)
previewDimension.initializePreview( dimensioning.drawingVars, clickFunPreview, hoverFunPreview )
else: #then distance between parallels
x1,y1,x2,y2 = [ elementParms[k] for k in [ 'x1', 'y1', 'x2', 'y2' ] ]
debugPrint(2,'distance between parallels, line2 x1=%3.1f y1=%3.1f, x2=%3.1f y2=%3.1f' % (x1,y1,x2,y2))
dimensioning.line1 = list(dimensioning.point1) + list(dimensioning.point2)
dimensioning.line2 = [ x1,y1,x2,y2 ]
debugPrint(3,'dim scale %f' % dimensioning.dimScale)
selectionOverlay.hideSelectionGraphicsItems()
previewDimension.removePreviewGraphicItems( False )
previewDimension.initializePreview( dimensioning.drawingVars, distanceParallels_clickFunPreview, distanceParallels_hoverFunPreview )
def clickFunPreview( x, y ):
if dimensioning.stage == 2 :
dimensioning.point3 = x, y
debugPrint(2, 'point3 set to x=%3.1f y=%3.1f' % (x,y))
dimensioning.stage = 3
selectionOverlay.hideSelectionGraphicsItems() # for distance between parallels case
return None, None
else:
p1,p2,p3 = dimensioning.point1, dimensioning.point2, dimensioning.point3
XML = halfLinearDimensionSVG( p1[0], p1[1], p2[0], p2[1], p3[0], p3[1],
x, y, scale=dimensioning.dimScale,
**dimensioning.dimensionConstructorKWs)
return findUnusedObjectName('dim'), XML
def hoverFunPreview( x, y ):
p1, p2 = dimensioning.point1, dimensioning.point2
if dimensioning.stage == 2 :
return halfLinearDimensionSVG( p1[0], p1[1], p2[0], p2[1], x, y, **dimensioning.svg_preview_KWs )
else:
return halfLinearDimensionSVG( p1[0], p1[1], p2[0], p2[1],
dimensioning.point3[0], dimensioning.point3[1],
x, y, scale=dimensioning.dimScale, **dimensioning.svg_preview_KWs )
maskBrush = QtGui.QBrush( QtGui.QColor(0,160,0,100) )
maskPen = QtGui.QPen( QtGui.QColor(0,160,0,100) )
maskPen.setWidth(0.0)
maskHoverPen = QtGui.QPen( QtGui.QColor(0,255,0,255) )
maskHoverPen.setWidth(0.0)
line_maskPen = QtGui.QPen( QtGui.QColor(0,255,0,100) )
line_maskPen.setWidth(2.0)
line_maskHoverPen = QtGui.QPen( QtGui.QColor(0,255,0,255) )
line_maskHoverPen.setWidth(2.0)
line_maskBrush = QtGui.QBrush() #clear
class halfLinearDimension:
"this class will create a line after the user clicked 2 points on the screen"
def Activated(self):
V = getDrawingPageGUIVars()
dimensioning.activate( V, ['strokeWidth','arrowL1','arrowL2','arrowW','gap_datum_points', 'dimension_line_overshoot'], ['lineColor'], ['textRenderer'] )
commonArgs = dict(
onClickFun=selectDimensioningPoint,
transform = V.transform,
sceneToAddTo = V.graphicsScene,
pointWid=1.0,
maskPen=maskPen,
maskHoverPen=maskHoverPen,
maskBrush = maskBrush
)
selectionOverlay.generateSelectionGraphicsItems(
[obj for obj in V.page.Group if not obj.Name.startswith('dim') and not obj.Name.startswith('center')],
doPoints=True,
**commonArgs
)
selectionOverlay.generateSelectionGraphicsItems(
[obj for obj in V.page.Group if obj.Name.startswith('center')],
clearPreviousSelectionItems = False,
doPathEndPoints=True,
**commonArgs
)
selectionOverlay.generateSelectionGraphicsItems(
[obj for obj in V.page.Group if not obj.Name.startswith('dim') and not obj.Name.startswith('center')],
clearPreviousSelectionItems = False,
doLines=True,
onClickFun=selectDimensioningPoint,
transform = V.transform,
sceneToAddTo = V.graphicsScene,
maskPen= line_maskPen,
maskHoverPen= line_maskHoverPen,
maskBrush = line_maskBrush
)
selectionOverlay.addProxyRectToRescaleGraphicsSelectionItems( V.graphicsScene, V.graphicsView, V.width, V.height)
def GetResources(self):
return {
'Pixmap' : os.path.join( iconPath , 'halfLinearDimension.svg' ) ,
'MenuText': 'Half Linear Dimension',
'ToolTip': 'Creates a half linear dimension'
}
FreeCADGui.addCommand('halfLinearDimension', halfLinearDimension())
#distance between parallels code
def lineSelected_hideSelectionGraphicsItems(elementParms, elementViewObject):
x1,y1,x2,y2 = [ elementParms[k] for k in [ 'x1', 'y1', 'x2', 'y2' ] ]
d = numpy.array([ x2 - x1, y2 - y1] )
d_ref = d / numpy.linalg.norm(d)
p = numpy.array([ x1, y1] )
def hideFun( gi ):
if isinstance(gi,selectionOverlay.LineSelectionGraphicsItem):
if gi.elementParms <> elementParms:
x1,y1,x2,y2 = [ gi.elementParms[k] for k in [ 'x1', 'y1', 'x2', 'y2' ] ]
d = numpy.array([ x2 - x1, y2 - y1] )
d = d / numpy.linalg.norm(d)
if abs(numpy.dot(d_ref,d)) > 1.0 - 10**-9: #then parallel
d_rotated = rotate2D(d, numpy.pi/2)
offset = numpy.array([ x1, y1] ) - p
if abs(numpy.dot(d_rotated, offset)) > 10**-6: #then not colinear
return False
return True
selectionOverlay.hideSelectionGraphicsItems(hideFun)
def distanceParallels_clickFunPreview( x, y ):
if dimensioning.stage == 2 :
dimensioning.point3 = x, y
debugPrint(2, 'base-line point set to x=%3.1f y=%3.1f' % (x,y))
dimensioning.stage = 3
return None, None
else:
XML = distanceBetweenParallelsSVG(
dimensioning.line1, dimensioning.line2,
dimensioning.point3[0], dimensioning.point3[1],
x, y, scale=dimensioning.dimScale,
**dimensioning.dimensionConstructorKWs)
return findUnusedObjectName('dim'), XML
def distanceParallels_hoverFunPreview( x, y ):
if dimensioning.stage == 2 :
return distanceBetweenParallelsSVG(
dimensioning.line1, dimensioning.line2, x, y,
scale=dimensioning.dimScale,
**dimensioning.svg_preview_KWs )
else:
return distanceBetweenParallelsSVG(
dimensioning.line1, dimensioning.line2,
dimensioning.point3[0], dimensioning.point3[1],
x, y, scale=dimensioning.dimScale,
**dimensioning.svg_preview_KWs )