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refactored and improved view rasterization system (wip)

pull/2/head
Youen 1 year ago
parent
14e8aee319
commit
137b73fea1
3 changed files with 226 additions and 101 deletions
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  1. 6
      ahb_cmd_view_annotate.py
  2. 147
      ahb_raster_view.py
  3. 174
      ahb_techdraw_extensions.py

6
ahb_cmd_view_annotate.py
Unescape View File

@ -50,6 +50,10 @@ class AHB_View_Annotate:
if obj.SourceView != view: continue
balloon = obj
overlay_view = doc.getObject(view.Name + '_overlay')
if overlay_view is None:
overlay_view = view
# Create a new balloon if needed
if balloon is None:
partName = partLink.Name
@ -57,7 +61,7 @@ class AHB_View_Annotate:
balloonName = partName + "_Balloon"
balloon = doc.addObject("TechDraw::DrawViewBalloon", balloonName)
balloon.SourceView = view
balloon.SourceView = overlay_view
balloon.addProperty("App::PropertyXLink", "Assembly_handbook_Source", "Assembly_handbook")
balloon.Assembly_handbook_Source = (partLink, partLink.Name)

147
ahb_raster_view.py
Unescape View File

@ -0,0 +1,147 @@
import FreeCAD as App
import FreeCADGui as Gui
class RasterView:
def __init__(self, view):
self.source_view = view
doc = view.Document
self.image_file_name = doc.FileName.replace('.FCStd', '') + '_raster/' + view.Name + '.png'
def init_image(self):
workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench
doc = self.source_view.Document
page = workbench.techDrawExtensions.getViewPage(self.source_view)
image_name = self.source_view.Label + "_raster"
image = doc.getObject(image_name)
if image is None:
image = doc.addObject('TechDraw::DrawViewImage', image_name)
image.addProperty("App::PropertyFloat", "Assembly_handbook_ViewVolumeWidth", "Assembly_handbook")
image.addProperty("App::PropertyFloat", "Assembly_handbook_ViewVolumeHeight", "Assembly_handbook")
image.addProperty("App::PropertyFloat", "Assembly_handbook_ViewVolumeDepth", "Assembly_handbook")
image.addProperty("App::PropertyVector", "Assembly_handbook_ViewVolumeOffset", "Assembly_handbook")
if not image in page.Views:
page.addView(image)
new_views_list = page.Views
new_views_list.remove(image)
view_idx = new_views_list.index(self.source_view)
new_views_list.insert(view_idx, image)
page.Views = new_views_list
self.image_view = image
if image.Assembly_handbook_ViewVolumeWidth > 0:
self.init_image_projection()
def init_image_projection(self):
YDirection = self.source_view.Direction.cross(self.source_view.XDirection)
self.image_x_dir = self.source_view.XDirection / self.image_view.Assembly_handbook_ViewVolumeWidth
self.image_y_dir = YDirection / self.image_view.Assembly_handbook_ViewVolumeHeight
self.image_z_dir = self.source_view.Direction / self.image_view.Assembly_handbook_ViewVolumeDepth
self.image_x_dir_inv = self.source_view.XDirection * self.image_view.Assembly_handbook_ViewVolumeWidth
self.image_y_dir_inv = YDirection * self.image_view.Assembly_handbook_ViewVolumeHeight
self.image_z_dir_inv = self.source_view.Direction * self.image_view.Assembly_handbook_ViewVolumeDepth
def project3DPointToImageView(self, point3d):
offset = self.image_view.Assembly_handbook_ViewVolumeOffset
return App.Vector(self.image_x_dir.dot(point3d) + offset.x, self.image_y_dir.dot(point3d) + offset.y, self.image_z_dir.dot(point3d) + offset.z)
def projectImageViewPointTo3D(self, point2d):
offset = self.image_view.Assembly_handbook_ViewVolumeOffset
p = point2d - offset
return self.image_x_dir_inv * p.x + self.image_y_dir_inv * p.y + self.image_z_dir_inv * p.z
def render(self):
from pivy import coin
import os
from PIL import Image, ImageDraw, ImageChops
view = self.source_view
self.init_image()
print('Rasterizing ' + view.Label + " to " + self.image_file_name + "...")
dir = os.path.dirname(self.image_file_name)
if not os.path.exists(dir):
os.makedirs(dir)
doc = App.newDocument('tmp_raster', hidden=False, temp=False)
for part in view.XSource:
link = doc.addObject('App::Link', part.Name)
link.Label = part.Label
if part.TypeId == 'App::Link':
link.LinkedObject = part.LinkedObject
link.Placement = part.Placement
else:
link.LinkedObject = part
docView = Gui.getDocument(doc.Name).mdiViewsOfType('Gui::View3DInventor')[0]
cam = docView.getCameraNode()
rot = coin.SbRotation(coin.SbVec3f(1,0,0), coin.SbVec3f(view.XDirection.x,view.XDirection.y,view.XDirection.z))
rot *= coin.SbRotation(coin.SbVec3f(0,0,1), coin.SbVec3f(view.Direction.x,view.Direction.y,view.Direction.z))
cam.orientation.setValue(rot)
docView.fitAll()
viewVolume = cam.getViewVolume(0.0)
self.image_view.Assembly_handbook_ViewVolumeWidth = viewVolume.getWidth()
self.image_view.Assembly_handbook_ViewVolumeHeight = viewVolume.getHeight()
self.image_view.Assembly_handbook_ViewVolumeDepth = viewVolume.getDepth()
sb_offset = viewVolume.projectToScreen(coin.SbVec3f(0,0,0))
self.image_view.Assembly_handbook_ViewVolumeOffset = App.Vector(sb_offset[0], sb_offset[1], sb_offset[2])
self.init_image_projection()
docView.saveImage(self.image_file_name, 4096, 4096, "#ffffff")
with Image.open(self.image_file_name) as img:
original_size = img.size
p2dA = self.project3DPointToImageView(App.Vector(0,0,0))
p2dB = self.project3DPointToImageView(view.XDirection)
imageScale = view.Scale / (p2dB.x - p2dA.x) / original_size[0] * 10
#print('imageScale', imageScale)
bg = Image.new(img.mode, img.size, '#ffffff') # fills an image with the background color
diff = ImageChops.difference(img, bg) # diff between the actual image and the background color
bbox = diff.getbbox() # finds border size (non-black portion of the image)
print(bbox)
#image_center = (bbox[0] + (bbox[2] - bbox[0])/2 - img.size[0]/2, bbox[1] + (bbox[3] - bbox[1])/2 - img.size[1]/2)
#print(image_center)
img = img.crop(bbox)
draw = ImageDraw.Draw(img)
def debugPoint(p3d):
p2d = self.project3DPointToImageView(p3d)
pp = App.Vector(p2d.x * original_size[0] - bbox[0], (1.0-p2d.y) * original_size[1] - bbox[1])
#print('pp', pp)
len = 100
draw.line([(pp.x, pp.y-len), (pp.x, pp.y+len)], fill=128, width = 7)
draw.line([(pp.x-len, pp.y), (pp.x+len, pp.y)], fill=128, width = 7)
#debugPoint(App.Vector(-12.5, 37.5, 25.0))
#debugPoint(App.Vector(-12.5, -1387.5, 25.0))
#debugPoint(App.Vector(131.23702882966705, -655.0000021095163, 145.21130178331268))
img.save(self.image_file_name)
App.closeDocument(doc.Name)
image = self.image_view
image.ImageFile = ""
image.Scale = imageScale
image.X = view.X
image.Y = view.Y
image.ImageFile = self.image_file_name # TODO: see if it's possible to set a relative path
image.recompute()

174
ahb_techdraw_extensions.py
Unescape View File

@ -84,6 +84,8 @@ class TechDrawExtensions:
QTimer.singleShot(10, self._do_repaint)
def _do_repaint(self):
from ahb_raster_view import RasterView
workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench
selection = Gui.Selection.getSelection()
@ -92,6 +94,8 @@ class TechDrawExtensions:
self.views_to_repaint = {}
for view in to_repaint:
if '_overlay' in view.Label:
continue
#print("Repainting " + view.Name)
page = self.getViewPage(view)
@ -103,31 +107,82 @@ class TechDrawExtensions:
if not 'Assembly_handbook_RasterView' in view.PropertiesList:
view.addProperty("App::PropertyBool", "Assembly_handbook_RasterView", "Assembly_handbook")
view.Assembly_handbook_RasterView = True
if view.Assembly_handbook_RasterView:
print("Rasterizing view " + view.Label + "...")
imageName = view.Label + "_raster"
image = doc.getObject(imageName)
if image is None:
image = doc.addObject('TechDraw::DrawViewImage', view.Label + "_raster")
if not image in page.Views:
page.addView(image)
raster_view = RasterView(view)
raster_view.render()
view.Visibility = False
overlayName = view.Label + "_overlay"
overlay = doc.getObject(overlayName)
if overlay is None:
overlay = doc.addObject('TechDraw::DrawViewPart', overlayName)
page.addView(overlay)
overlay_frame_name = view.Label + "_frame"
overlay_frame = doc.getObject(overlay_frame_name)
if overlay_frame is None:
import Draft
'''
points = [App.Vector(0.0, 0.0, 0.0), App.Vector(1.01, 0, 0)]
obj1 = Draft.makeWire(points, closed=False, face=False, support=None)
points = [App.Vector(200.0, 0.0, 0.0), App.Vector(201.01, 0, 0)]
obj2 = Draft.makeWire(points, closed=False, face=False, support=None)
#overlay_frame = Draft.upgrade([], delete=True)
#overlay_frame.Label = overlay_frame_name
overlay_frame = App.ActiveDocument.addObject("Part::Part2DObjectPython", overlay_frame_name)
Draft.Block(overlay_frame)
overlay_frame.Components = [obj1, obj2]
Draft.ViewProviderDraftPart(overlay_frame.ViewObject)
doc.removeObject(obj1.Name)
doc.removeObject(obj2.Name)'''
#overlay_frame = Draft.makeWire(points, closed=False, face=False, support=None)
overlay_frame = App.ActiveDocument.addObject("Part::Part2DObjectPython", overlay_frame_name)
Draft.Wire(overlay_frame)
pos = raster_view.projectImageViewPointTo3D(App.Vector(0,0,0))
pos2 = raster_view.projectImageViewPointTo3D(App.Vector(0,0.0001,1))
overlay_frame.Points = [pos, pos2]
Draft.ViewProviderWire(overlay_frame.ViewObject)
overlay_frame.recompute()
overlay_frame2_name = view.Label + "_frame2"
overlay_frame2 = doc.getObject(overlay_frame2_name)
if overlay_frame2 is None:
overlay_frame2 = App.ActiveDocument.addObject("Part::Part2DObjectPython", overlay_frame2_name)
Draft.Wire(overlay_frame2)
pos = raster_view.projectImageViewPointTo3D(App.Vector(1,1,0))
pos2 = raster_view.projectImageViewPointTo3D(App.Vector(1,1.0001,1))
overlay_frame2.Points = [pos, pos2]
Draft.ViewProviderWire(overlay_frame2.ViewObject)
overlay_frame2.recompute()
new_views_list = page.Views
new_views_list.remove(image)
view_idx = new_views_list.index(view)
new_views_list.insert(view_idx, image)
page.Views = new_views_list
overlay.Source = [overlay_frame, overlay_frame2]
image_file_name = doc.FileName.replace('.FCStd', '') + '_raster/' + view.Name + '.png'
image_scale = self.rasterizeView(view, image_file_name)
image.ImageFile = ""
image.Scale = image_scale
image.X = view.X #- image_center[0]/10.0*image_scale
image.Y = view.Y #+ image_center[1]/10.0*image_scale
image.ImageFile = image_file_name # TODO: see if it's possible to set a relative path
image.recompute()
overlay.X = view.X
overlay.Y = view.Y
overlay.Direction = view.Direction
overlay.XDirection = view.XDirection
overlay.ScaleType = view.ScaleType
overlay.Scale = view.Scale
overlay.ViewObject.LineWidth = 0.01
for balloon in page.Views:
if balloon.TypeId == 'TechDraw::DrawViewBalloon' and "Assembly_handbook_Source" in balloon.PropertiesList and balloon.SourceView == view:
if balloon.SourceView == view:
balloon.SourceView = overlay
page.addView(balloon)
balloon.recompute()
page.KeepUpdated = True # once we have hidden the source view, there should be no performance issue
overlay.recompute()
page.recompute()
else:
fast_rendering = False
#try:
@ -231,87 +286,6 @@ class TechDrawExtensions:
view.requestPaint()
def rasterizeView(self, view, image_file_name):
from pivy import coin
import os
from PIL import Image, ImageDraw, ImageChops
print('Rasterizing ' + view.Label + " to " + image_file_name + "...")
dir = os.path.dirname(image_file_name)
if not os.path.exists(dir):
os.makedirs(dir)
doc = App.newDocument('tmp_raster', hidden=False, temp=False)
for part in view.XSource:
link = doc.addObject('App::Link', part.Name)
link.Label = part.Label
if part.TypeId == 'App::Link':
link.LinkedObject = part.LinkedObject
link.Placement = part.Placement
else:
link.LinkedObject = part
docView = Gui.getDocument(doc.Name).mdiViewsOfType('Gui::View3DInventor')[0]
cam = docView.getCameraNode()
rot = coin.SbRotation(coin.SbVec3f(1,0,0), coin.SbVec3f(view.XDirection.x,view.XDirection.y,view.XDirection.z))
rot *= coin.SbRotation(coin.SbVec3f(0,0,1), coin.SbVec3f(view.Direction.x,view.Direction.y,view.Direction.z))
cam.orientation.setValue(rot)
docView.fitAll()
viewVolume = cam.getViewVolume(0.0)
docView.saveImage(image_file_name, 4096, 4096, "#ffffff")
def project3dPointToViewport(p3d):
YDirection = view.Direction.cross(view.XDirection)
sb_offset = viewVolume.projectToScreen(coin.SbVec3f(0,0,0))
offset = App.Vector(sb_offset[0], sb_offset[1], 0)
#print('offset', offset)
p2d = App.Vector(view.XDirection.dot(p3d)/viewVolume.getWidth() + offset.x, YDirection.dot(p3d)/viewVolume.getHeight() + offset.y, 0)
return p2d
p2dA = project3dPointToViewport(App.Vector(0,0,0))
p2dB = project3dPointToViewport(view.XDirection)
# page_mm = (p2dB.x - p2dA.x) * resX / 100 * PNGscale = viewScale
imageScale = view.Scale / (p2dB.x - p2dA.x) / 4096.0 * 10
print('imageScale', imageScale)
with Image.open(image_file_name) as img:
original_size = img.size
bg = Image.new(img.mode, img.size, '#ffffff') # fills an image with the background color
diff = ImageChops.difference(img, bg) # diff between the actual image and the background color
bbox = diff.getbbox() # finds border size (non-black portion of the image)
print(bbox)
#image_center = (bbox[0] + (bbox[2] - bbox[0])/2 - img.size[0]/2, bbox[1] + (bbox[3] - bbox[1])/2 - img.size[1]/2)
#print(image_center)
img = img.crop(bbox)
draw = ImageDraw.Draw(img)
def debugPoint(p3d):
p2d = project3dPointToViewport(p3d)
pp = App.Vector(p2d.x * original_size[0] - bbox[0], (1.0-p2d.y) * original_size[1] - bbox[1])
#print('pp', pp)
len = 100
draw.line([(pp.x, pp.y-len), (pp.x, pp.y+len)], fill=128, width = 7)
draw.line([(pp.x-len, pp.y), (pp.x+len, pp.y)], fill=128, width = 7)
#debugPoint(App.Vector(-12.5, 37.5, 25.0))
#debugPoint(App.Vector(-12.5, -1387.5, 25.0))
#debugPoint(App.Vector(131.23702882966705, -655.0000021095163, 145.21130178331268))
img.save(image_file_name)
App.closeDocument(doc.Name)
return imageScale
def updateBalloonCursor(self, view):
selected_balloons = []
for obj in Gui.Selection.getSelection():

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