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stlplater.py
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#!/usr/bin/env python3
# This file is part of the Printrun suite.
#
# Printrun is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Printrun is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Printrun. If not, see <http://www.gnu.org/licenses/>.
import os
import wx
import time
import logging
import threading
import math
import sys
import re
import traceback
import subprocess
from copy import copy
from printrun import stltool
from printrun.objectplater import make_plater, PlaterPanel
from .utils import install_locale
install_locale('pronterface')
# Set up Internationalization using gettext
# searching for installed locales on /usr/share; uses relative folder if not found (windows)
glview = '--no-gl' not in sys.argv
if glview:
try:
from printrun import stlview
except ImportError:
glview = False
logging.warning(_("Could not load 3D viewer for plater:") +
"\n" + traceback.format_exc())
def evalme(s):
return eval(s[s.find("(") + 1:s.find(")")])
def transformation_matrix(model):
matrix = stltool.I
if any(model.centeroffset):
matrix = model.translation_matrix(model.centeroffset).dot(matrix)
if model.rot:
matrix = model.rotation_matrix([0, 0, model.rot]).dot(matrix)
if any(model.offsets):
matrix = model.translation_matrix(model.offsets).dot(matrix)
return matrix
class showstl(wx.Window):
def __init__(self, parent, size, pos):
super().__init__(parent, size = size, pos = pos)
self.i = 0
self.parent = parent
self.previ = 0
self.Bind(wx.EVT_MOUSEWHEEL, self.rot)
self.Bind(wx.EVT_MOUSE_EVENTS, self.move)
self.Bind(wx.EVT_PAINT, self.repaint)
self.Bind(wx.EVT_KEY_DOWN, self.keypress)
self.triggered = 0
self.initpos = None
self.prevsel = -1
def prepare_model(self, m, scale):
m.bitmap = wx.Bitmap(800, 800, 32)
dc = wx.MemoryDC()
dc.SelectObject(m.bitmap)
dc.SetBackground(wx.Brush((0, 0, 0, 0)))
dc.SetBrush(wx.Brush((0, 0, 0, 255)))
dc.SetBrush(wx.Brush(wx.Colour(128, 255, 128)))
dc.SetPen(wx.Pen(wx.Colour(128, 128, 128)))
for i in m.facets:
dc.DrawPolygon([wx.Point(400 + scale * p[0], (400 - scale * p[1])) for p in i[1]])
dc.SelectObject(wx.NullBitmap)
m.bitmap.SetMask(wx.Mask(m.bitmap, wx.Colour(0, 0, 0, 255)))
def move_shape(self, delta):
"""moves shape (selected in l, which is list ListBox of shapes)
by an offset specified in tuple delta.
Positive numbers move to (rigt, down)"""
name = self.parent.l.GetSelection()
if name == wx.NOT_FOUND:
return False
name = self.parent.l.GetString(name)
model = self.parent.models[name]
model.offsets = [model.offsets[0] + delta[0],
model.offsets[1] + delta[1],
model.offsets[2]
]
self.Refresh()
return True
def move(self, event):
if event.ButtonUp(wx.MOUSE_BTN_LEFT):
if self.initpos is not None:
currentpos = event.GetPosition()
delta = (0.5 * (currentpos[0] - self.initpos[0]),
-0.5 * (currentpos[1] - self.initpos[1])
)
self.move_shape(delta)
self.Refresh()
self.initpos = None
elif event.ButtonDown(wx.MOUSE_BTN_RIGHT):
self.parent.right(event)
elif event.Dragging():
if self.initpos is None:
self.initpos = event.GetPosition()
self.Refresh()
dc = wx.ClientDC(self)
p = event.GetPosition()
dc.DrawLine(self.initpos[0], self.initpos[1], p[0], p[1])
del dc
else:
event.Skip()
def rotate_shape(self, angle):
"""rotates active shape
positive angle is clockwise
"""
self.i += angle
if not self.triggered:
self.triggered = 1
threading.Thread(target = self.cr).start()
def keypress(self, event):
"""gets keypress events and moves/rotates active shape"""
keycode = event.GetKeyCode()
step = 5
angle = 18
if event.ControlDown():
step = 1
angle = 1
# h
if keycode == 72:
self.move_shape((-step, 0))
# l
if keycode == 76:
self.move_shape((step, 0))
# j
if keycode == 75:
self.move_shape((0, step))
# k
if keycode == 74:
self.move_shape((0, -step))
# [
if keycode == 91:
self.rotate_shape(-angle)
# ]
if keycode == 93:
self.rotate_shape(angle)
event.Skip()
def rotateafter(self):
if self.i != self.previ:
i = self.parent.l.GetSelection()
if i != wx.NOT_FOUND:
self.parent.models[self.parent.l.GetString(i)].rot -= 5 * (self.i - self.previ)
self.previ = self.i
self.Refresh()
def cr(self):
time.sleep(0.01)
wx.CallAfter(self.rotateafter)
self.triggered = 0
def rot(self, event):
z = event.GetWheelRotation()
s = self.parent.l.GetSelection()
if self.prevsel != s:
self.i = 0
self.prevsel = s
self.rotate_shape(-1 if z < 0 else 1)
def repaint(self, event):
dc = wx.PaintDC(self)
self.paint(dc = dc)
def paint(self, coord1 = "x", coord2 = "y", dc = None):
if dc is None:
dc = wx.ClientDC(self)
scale = 2
dc.SetPen(wx.Pen(wx.Colour(100, 100, 100)))
for i in range(20):
dc.DrawLine(0, i * scale * 10, 400, i * scale * 10)
dc.DrawLine(i * scale * 10, 0, i * scale * 10, 400)
dc.SetPen(wx.Pen(wx.Colour(0, 0, 0)))
for i in range(4):
dc.DrawLine(0, i * scale * 50, 400, i * scale * 50)
dc.DrawLine(i * scale * 50, 0, i * scale * 50, 400)
dc.SetBrush(wx.Brush(wx.Colour(128, 255, 128)))
dc.SetPen(wx.Pen(wx.Colour(128, 128, 128)))
dcs = wx.MemoryDC()
for m in self.parent.models.values():
b = m.bitmap
im = b.ConvertToImage()
imgc = wx.Point(im.GetWidth() / 2, im.GetHeight() / 2)
im = im.Rotate(math.radians(m.rot), imgc, 0)
bm = wx.BitmapFromImage(im)
dcs.SelectObject(bm)
bsz = bm.GetSize()
dc.Blit(scale * m.offsets[0] - bsz[0] / 2, 400 - (scale * m.offsets[1] + bsz[1] / 2), bsz[0], bsz[1], dcs, 0, 0, useMask = 1)
del dc
class StlPlaterPanel(PlaterPanel):
load_wildcard = _("STL files (*.stl;*.STL)|*.stl;*.STL|OpenSCAD files (*.scad)|*.scad")
save_wildcard = _("STL files (*.stl;*.STL)|*.stl;*.STL")
def prepare_ui(self, filenames = [], callback = None,
parent = None, build_dimensions = None,
circular_platform = False,
simarrange_path = None,
antialias_samples = 0):
super().prepare_ui(filenames, callback, parent, build_dimensions, cutting_tool = True)
self.cutting = False
self.cutting_axis = None
self.cutting_dist = None
if glview:
viewer = stlview.StlViewPanel(self, wx.DefaultSize,
build_dimensions = self.build_dimensions,
circular = circular_platform,
antialias_samples = antialias_samples)
else:
viewer = showstl(self, (580, 580), (0, 0))
self.simarrange_path = simarrange_path
self.set_viewer(viewer)
self.enable_cut_button(False)
self.SetMinClientSize(self.topsizer.CalcMin())
def start_cutting_tool(self, event, axis, direction):
toggle = event.EventObject
self.cutting = toggle.Value
if toggle.Value:
# Disable the other toggles
for button in self.cut_axis_buttons:
if button != toggle:
button.Value = False
self.cutting_axis = axis
self.cutting_direction = direction
else:
self.cutting_axis = None
self.cutting_direction = None
self.enable_cut_button(False)
self.cutting_dist = None
def end_cutting_tool(self):
self.cutting = False
self.cutting_dist = None
self.cutting_axis = None
self.cutting_direction = None
self.enable_cut_button(False)
for button in self.cut_axis_buttons:
button.SetValue(False)
def cut_confirm(self, event):
name = self.l.GetSelection()
name = self.l.GetString(name)
model = self.models[name]
transformation = transformation_matrix(model)
transformed = model.transform(transformation)
logging.info(_("Cutting %s alongside %s axis") % (name, self.cutting_axis.upper()))
axes = ["x", "y", "z"]
cut = transformed.cut(axes.index(self.cutting_axis),
self.cutting_direction,
self.cutting_dist)
cut.offsets = [0, 0, 0]
cut.rot = 0
cut.scale = model.scale
cut.filename = model.filename
cut.centeroffset = [0, 0, 0]
self.s.prepare_model(cut, 2)
self.models[name] = cut
self.cutting = False
self.cutting_axis = None
self.cutting_dist = None
self.cutting_direction = None
for button in self.cut_axis_buttons:
button.SetValue(False)
self.enable_cut_button(False)
def clickcb(self, event, single = False):
if not isinstance(self.s, stlview.StlViewPanel):
return
if self.cutting:
self.clickcb_cut(event)
else:
self.clickcb_rebase(event)
def clickcb_cut(self, event):
axis = self.cutting_axis
self.cutting_dist, _, _ = self.s.get_cutting_plane(axis, None,
local_transform = True)
if self.cutting_dist is not None:
self.enable_cut_button(True)
def clickcb_rebase(self, event):
x, y = event.GetPosition()
ray_near, ray_far = self.s.mouse_to_ray(x, y, local_transform = True)
best_match = None
best_facet = None
best_dist = float("inf")
for key, model in self.models.items():
transformation = transformation_matrix(model)
transformed = model.transform(transformation)
if not transformed.intersect_box(ray_near, ray_far):
logging.debug("Skipping %s for rebase search" % key)
continue
facet, facet_dist = transformed.intersect(ray_near, ray_far)
if facet is not None and facet_dist < best_dist:
best_match = key
best_facet = facet
best_dist = facet_dist
if best_match is not None:
logging.info("Rebasing %s" % best_match)
model = self.models[best_match]
newmodel = model.rebase(best_facet)
newmodel.offsets = list(model.offsets)
newmodel.rot = 0
newmodel.scale = model.scale
newmodel.filename = model.filename
newmodel.centeroffset = [-(newmodel.dims[1] + newmodel.dims[0]) / 2,
-(newmodel.dims[3] + newmodel.dims[2]) / 2,
0]
self.s.prepare_model(newmodel, 2)
self.models[best_match] = newmodel
wx.CallAfter(self.Refresh)
def done(self, event, cb):
if not os.path.exists("tempstl"):
os.mkdir("tempstl")
name = "tempstl/" + str(int(time.time()) % 10000) + ".stl"
self.export_to(name)
if cb is not None:
cb(name)
if self.destroy_on_done:
self.Destroy()
def load_file(self, filename):
if filename.lower().endswith(".stl"):
try:
self.load_stl(filename)
except:
dlg = wx.MessageDialog(self, _("Loading STL file failed"),
_("Error:") + traceback.format_exc(),
wx.OK)
dlg.ShowModal()
logging.error(_("Loading STL file failed:") +
"\n" + traceback.format_exc())
elif filename.lower().endswith(".scad"):
try:
self.load_scad(filename)
except:
dlg = wx.MessageDialog(self, _("Loading OpenSCAD file failed"),
_("Error:") + traceback.format_exc(),
wx.OK)
dlg.ShowModal()
logging.error(_("Loading OpenSCAD file failed:") +
"\n" + traceback.format_exc())
def load_scad(self, name):
with open(name) as lf:
s = [i.replace("\n", "").replace("\r", "").replace(";", "") for i in lf if "stl" in i]
for i in s:
parts = i.split()
for part in parts:
if 'translate' in part:
translate_list = evalme(part)
for part in parts:
if 'rotate' in part:
rotate_list = evalme(part)
for part in parts:
if 'import' in part:
stl_file = evalme(part)
newname = os.path.split(stl_file.lower())[1]
c = 1
while newname in self.models:
newname = os.path.split(stl_file.lower())[1]
newname = newname + "(%d)" % c
c += 1
stl_path = os.path.join(os.path.split(name)[0:len(os.path.split(stl_file)) - 1])
stl_full_path = os.path.join(stl_path[0], str(stl_file))
self.load_stl_into_model(stl_full_path, stl_file, translate_list, rotate_list[2])
def load_stl(self, name):
if not os.path.exists(name):
logging.error(_("Couldn't load non-existing file %s") % name)
return
path = os.path.split(name)[0]
self.basedir = path
if name.lower().endswith(".stl"):
for model in self.models.values():
if model.filename == name:
newmodel = copy(model)
newmodel.offsets = list(model.offsets)
newmodel.rot = model.rot
newmodel.scale = list(model.scale)
self.add_model(name, newmodel)
self.s.prepare_model(newmodel, 2)
break
else:
# Filter out the path, just show the STL filename.
self.load_stl_into_model(name, name)
wx.CallAfter(self.Refresh)
def load_stl_into_model(self, path, name, offset = None, rotation = 0, scale = [1.0, 1.0, 1.0]):
model = stltool.stl(path)
if offset is None:
offset = [self.build_dimensions[3], self.build_dimensions[4], 0]
model.offsets = list(offset)
model.rot = rotation
model.scale = list(scale)
model.filename = name
self.add_model(name, model)
model.centeroffset = [-(model.dims[1] + model.dims[0]) / 2,
-(model.dims[3] + model.dims[2]) / 2,
0]
self.s.prepare_model(model, 2)
def export_to(self, name):
with open(name.replace(".", "_") + ".scad", "w") as sf:
facets = []
for model in self.models.values():
r = model.rot
o = model.offsets
co = model.centeroffset
sf.write("translate([%s, %s, %s])"
"rotate([0, 0, %s])"
"translate([%s, %s, %s])"
"import(\"%s\");\n" % (o[0], o[1], o[2],
r,
co[0], co[1], co[2],
model.filename))
model = model.transform(transformation_matrix(model))
facets += model.facets
stltool.emitstl(name, facets, "plater_export")
logging.info(_("Wrote plate to %s") % name)
def autoplate(self, event = None):
if self.simarrange_path:
try:
self.autoplate_simarrange()
except Exception as e:
logging.warning(_("Failed to use simarrange for plating, "
"falling back to the standard method. "
"The error was: ") + e)
super().autoplate()
else:
super().autoplate()
def autoplate_simarrange(self):
logging.info(_("Autoplating using simarrange"))
models = dict(self.models)
files = [model.filename for model in models.values()]
command = [self.simarrange_path, "--dryrun",
"-m", # Pack around center
"-x", str(int(self.build_dimensions[0])),
"-y", str(int(self.build_dimensions[1]))] + files
p = subprocess.Popen(command, stdout = subprocess.PIPE, universal_newlines = True)
pos_regexp = re.compile("File: (.*) minx: ([0-9]+), miny: ([0-9]+), minrot: ([0-9]+)")
for line in p.stdout:
line = line.rstrip()
if "Generating plate" in line:
plateid = int(line.split()[-1])
if plateid > 0:
logging.error(_("Plate full, please remove some objects"))
break
if "File:" in line:
bits = pos_regexp.match(line).groups()
filename = bits[0]
x = float(bits[1])
y = float(bits[2])
rot = -float(bits[3])
for name, model in list(models.items()):
# FIXME: not sure this is going to work superwell with utf8
if model.filename == filename:
model.offsets[0] = x + self.build_dimensions[3]
model.offsets[1] = y + self.build_dimensions[4]
model.rot = rot
del models[name]
break
if p.wait() != 0:
raise RuntimeError(_("simarrange failed"))
StlPlater = make_plater(StlPlaterPanel)