freecad-cam/Mod/Assembly/SoSwitchMarker.py
2026-02-01 01:59:24 +01:00

182 lines
7.0 KiB
Python

# SPDX-License-Identifier: LGPL-2.1-or-later
# /**************************************************************************
# *
# Copyright (c) 2024 Ondsel <development@ondsel.com> *
# *
# This file is part of FreeCAD. *
# *
# FreeCAD is free software: you can redistribute it and/or modify it *
# under the terms of the GNU Lesser General Public License as *
# published by the Free Software Foundation, either version 2.1 of the *
# License, or (at your option) any later version. *
# *
# FreeCAD 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 *
# Lesser General Public License for more details. *
# *
# You should have received a copy of the GNU Lesser General Public *
# License along with FreeCAD. If not, see *
# <https://www.gnu.org/licenses/>. *
# *
# **************************************************************************/
import math
import FreeCAD as App
if App.GuiUp:
import FreeCADGui as Gui
__title__ = "Assembly Marker Inventor object"
__author__ = "Ondsel"
__url__ = "https://www.freecad.org"
from pivy import coin
import UtilsAssembly
import Preferences
class SoSwitchMarker(coin.SoSwitch):
def __init__(self, vobj):
super().__init__() # Initialize the SoSwitch base class
self.axis_thickness = 3
self.scaleFactor = 20
view_params = App.ParamGet("User parameter:BaseApp/Preferences/View")
param_x_axis_color = view_params.GetUnsigned("AxisXColor", 0xCC333300)
param_y_axis_color = view_params.GetUnsigned("AxisYColor", 0x33CC3300)
param_z_axis_color = view_params.GetUnsigned("AxisZColor", 0x3333CC00)
self.x_axis_so_color = coin.SoBaseColor()
self.x_axis_so_color.rgb.setValue(UtilsAssembly.color_from_unsigned(param_x_axis_color))
self.y_axis_so_color = coin.SoBaseColor()
self.y_axis_so_color.rgb.setValue(UtilsAssembly.color_from_unsigned(param_y_axis_color))
self.z_axis_so_color = coin.SoBaseColor()
self.z_axis_so_color.rgb.setValue(UtilsAssembly.color_from_unsigned(param_z_axis_color))
self.app_obj = vobj.Object
app_doc = self.app_obj.Document
self.gui_doc = Gui.getDocument(app_doc)
self.transform = coin.SoTransform()
self.draw_style = coin.SoDrawStyle()
self.draw_style.style = coin.SoDrawStyle.LINES
self.draw_style.lineWidth = self.axis_thickness
self.pick = coin.SoPickStyle()
self.setPickableState(True)
JCS = coin.SoAnnotation()
JCS.addChild(self.transform)
JCS.addChild(self.pick)
base_plane_sep = self.plane_sep(0.4, 15)
X_axis_sep = self.line_sep([0.5, 0, 0], [1, 0, 0], self.x_axis_so_color)
Y_axis_sep = self.line_sep([0, 0.5, 0], [0, 1, 0], self.y_axis_so_color)
Z_axis_sep = self.line_sep([0, 0, 0], [0, 0, 1], self.z_axis_so_color)
JCS.addChild(base_plane_sep)
JCS.addChild(X_axis_sep)
JCS.addChild(Y_axis_sep)
JCS.addChild(Z_axis_sep)
switch_JCS = coin.SoSwitch()
self.addChild(JCS)
self.whichChild = coin.SO_SWITCH_NONE
def line_sep(self, startPoint, endPoint, soColor):
line = coin.SoLineSet()
line.numVertices.setValue(2)
coords = coin.SoCoordinate3()
coords.point.setValues(0, [startPoint, endPoint])
axis_sep = coin.SoAnnotation()
axis_sep.addChild(self.draw_style)
axis_sep.addChild(soColor)
axis_sep.addChild(coords)
axis_sep.addChild(line)
scale = coin.SoType.fromName("SoShapeScale").createInstance()
scale.setPart("shape", axis_sep)
scale.scaleFactor = self.scaleFactor
return scale
def plane_sep(self, size, num_vertices):
coords = coin.SoCoordinate3()
for i in range(num_vertices):
angle = float(i) / num_vertices * 2.0 * math.pi
x = math.cos(angle) * size
y = math.sin(angle) * size
coords.point.set1Value(i, x, y, 0)
face = coin.SoFaceSet()
face.numVertices.setValue(num_vertices)
transform = coin.SoTransform()
transform.translation.setValue(0, 0, 0)
draw_style = coin.SoDrawStyle()
draw_style.style = coin.SoDrawStyle.FILLED
material = coin.SoMaterial()
material.diffuseColor.setValue([0.5, 0.5, 0.5])
material.ambientColor.setValue([0.5, 0.5, 0.5])
material.specularColor.setValue([0.5, 0.5, 0.5])
material.emissiveColor.setValue([0.5, 0.5, 0.5])
material.transparency.setValue(0.3)
face_sep = coin.SoAnnotation()
face_sep.addChild(transform)
face_sep.addChild(draw_style)
face_sep.addChild(material)
face_sep.addChild(coords)
face_sep.addChild(face)
scale = coin.SoType.fromName("SoShapeScale").createInstance()
scale.setPart("shape", face_sep)
scale.scaleFactor = self.scaleFactor
return scale
def set_marker_placement(self, placement, ref):
# change plc to be relative to the origin of the document.
global_plc = UtilsAssembly.getGlobalPlacement(ref)
placement = global_plc * placement
t = placement.Base
self.transform.translation.setValue(t.x, t.y, t.z)
r = placement.Rotation.Q
self.transform.rotation.setValue(r[0], r[1], r[2], r[3])
def setPickableState(self, state: bool):
"""Set JCS selectable or unselectable in 3D view"""
if not state:
self.pick.style.setValue(coin.SoPickStyle.UNPICKABLE)
else:
self.pick.style.setValue(coin.SoPickStyle.SHAPE_ON_TOP)
def show_marker(self, visible, placement=None, ref=None):
if visible:
self.whichChild = coin.SO_SWITCH_ALL
self.set_marker_placement(placement, ref)
else:
self.whichChild = coin.SO_SWITCH_NONE
def onChanged(self, vp, prop):
if prop == "color_X_axis":
c = vp.getPropertyByName("color_X_axis")
self.x_axis_so_color.rgb.setValue(c[0], c[1], c[2])
if prop == "color_Y_axis":
c = vp.getPropertyByName("color_Y_axis")
self.y_axis_so_color.rgb.setValue(c[0], c[1], c[2])
if prop == "color_Z_axis":
c = vp.getPropertyByName("color_Z_axis")
self.z_axis_so_color.rgb.setValue(c[0], c[1], c[2])