You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
175 lines
7.3 KiB
175 lines
7.3 KiB
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_projection(self): |
|
doc = self.source_view.Document |
|
image_name = self.source_view.Label + "_raster" |
|
image = doc.getObject(image_name) |
|
if image is None: |
|
return False |
|
|
|
self.image_view = image |
|
|
|
if image.Assembly_handbook_ViewVolumeWidth > 0: |
|
self._precompute_image_projection() |
|
return True |
|
|
|
return False |
|
|
|
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._precompute_image_projection() |
|
|
|
def _precompute_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 project3DPointToSourceView(self, point3d): |
|
offset = self.image_view.Assembly_handbook_ViewVolumeOffset |
|
offset = App.Vector((offset.x-0.5) * self.image_view.Assembly_handbook_ViewVolumeWidth, (offset.y-0.5) * self.image_view.Assembly_handbook_ViewVolumeHeight, (offset.z-0.5) * self.image_view.Assembly_handbook_ViewVolumeDepth) |
|
#image_view_point = App.Vector(self.image_x_dir.dot(point3d), self.image_y_dir.dot(point3d), self.image_z_dir.dot(point3d)) |
|
#return App.Vector(image_view_point.x * self.image_view.Assembly_handbook_ViewVolumeWidth, image_view_point.y * self.image_view.Assembly_handbook_ViewVolumeHeight, 0) |
|
|
|
YDirection = self.source_view.Direction.cross(self.source_view.XDirection) |
|
return App.Vector(self.source_view.XDirection.dot(point3d) + offset.x, YDirection.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 |
|
elif part.TypeId == 'Part::FeaturePython' and hasattr(part, 'LinkedObject'): # variant 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() |
|
|
|
docView.saveImage(self.image_file_name, 4096, 4096, "#ffffff") |
|
|
|
with Image.open(self.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 = 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) |
|
|
|
sb_offset = viewVolume.projectToScreen(coin.SbVec3f(0,0,0)) |
|
crop_offset = App.Vector(((bbox[0] + bbox[2])/2 - original_size[0]/2)/original_size[0], ((bbox[1] + bbox[3])/2 - original_size[1]/2)/original_size[1], 0) |
|
self.image_view.Assembly_handbook_ViewVolumeOffset = App.Vector(sb_offset[0] - crop_offset.x, sb_offset[1] + crop_offset.y, sb_offset[2]) |
|
|
|
self._precompute_image_projection() |
|
|
|
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) |
|
|
|
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()
|
|
|