No puedo comunicarme entre un lienzo Pyopengl y un botón en un wxpanel ... no estoy seguro de cómo vincular los eventos.

Question

De hecho, tomé prestada la mayor parte del usuario 'Fenikso': Agregar wxglcanvas al problema de wxpanel

Agregué una función simple para probar la comunicación entre WXPANEL y el lienzo OpenGL. Funciona ... hasta que intente comunicar desde el botón del panel al lienzo. : P Primero, no puedo comunicarme con el lienzo del panel. La función vinculada al botón no puede actualizar la posición de la esfera. En segundo lugar, se queda atrás horriblemente. Voy a intentar ralentizar la función que controla la animación, pero me preguntaba si hay algo que debería hacer Diff. para acelerar esto un poco?

from OpenGL.GLUT import *
from OpenGL.GLU import *
from OpenGL.GL import *
from wx.glcanvas import GLCanvas
import wx


class myGLCanvas(GLCanvas):
    def __init__(self, *args, **kwargs):
        GLCanvas.__init__(self, *args, **kwargs)
        self.Bind(wx.EVT_PAINT, self.OnPaint)
        self.Bind(wx.EVT_SIZE, self.OnResize)
        self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
        self.Bind(wx.EVT_RIGHT_DOWN, self.OnRightDown)
        self.Bind(wx.EVT_RIGHT_UP, self.OnRightUp)
        self.Bind(wx.EVT_MOTION, self.OnMouse)

        self.init = False
        self.width, self.height = self.GetSize()

        self.alpha = 0
        self.beta = 0
        self.distance = 5.0

        self.oldX = 0
        self.oldY = 0
        self.leftDown = False
        self.rightDown = False
        self.axes = False


    def Axes(self, allow):
        self.axes = allow


    def OnDraw(self):
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)

        glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, (0.5, 0.5, 1.0, 1.0))
        glutSolidSphere(0.5, 20, 20)

        if self.axes:
            self.ShowAxes()

        self.SwapBuffers()


    def ChangeView(self):
        glMatrixMode(GL_MODELVIEW)
        glLoadIdentity()
        glTranslate(0.0, 0.0, -self.distance)
        glRotate(-90, 0.0, 1.0, 0.0)
        glRotate(-90, 1.0, 0.0, 0.0)

        glRotate(self.alpha, 0.0, 0.0, 1.0)
        glRotate(self.beta, 0.0, 1.0, 0.0)

        self.OnDraw()


    def Resize(self):
        ratio = float(self.width) / self.height;

        glMatrixMode(GL_PROJECTION)
        glLoadIdentity()
        glViewport(0, 0, self.width, self.height)
        gluPerspective(45, ratio, 1, 1000)

        self.ChangeView()


    def OnPaint(self, event):
        wx.PaintDC(self)
        self.SetCurrent()
        if not self.init:
            self.InitGL()
            self.init = True
        self.OnDraw()




    def OnLeftDown(self, event):
        self.oldX, self.oldY = event.GetPosition()
        self.leftDown = True

    def OnRightDown(self, event):
        self.oldX, self.oldY = event.GetPosition()
        self.rightDown = True

    def OnLeftUp(self, event):
        self.leftDown = False

    def OnRightUp(self, event):
        self.rightDown = False

    def OnMouse(self, event):
        if self.leftDown or self.rightDown:
            for i in range(5000):
                X, Y = event.GetPosition()
                if self.rightDown:
                    self.distance += (Y - self.oldY) * 0.05

                if self.leftDown:
                    self.alpha += (X - self.oldX) * 0.5
                    self.beta += (Y - self.oldY) * 0.5

                self.ChangeView()
                self.oldX, self.oldY = X, Y



    def OnResize(self, e):
        self.width, self.height = e.GetSize()
        self.Resize()


    def ShowAxes(self):
        glDisable(GL_LIGHTING)

        glColor3f(1.0, 1.0, 0.0)
        glRasterPos3f(1.2, 0.0, 0.0)
        glutBitmapCharacter(GLUT_BITMAP_9_BY_15, ord('x'))
        glRasterPos3f(0.0, 1.2, 0.0)
        glutBitmapCharacter(GLUT_BITMAP_9_BY_15, ord('y'))
        glRasterPos3f(0.0, 0.0, 1.2)
        glutBitmapCharacter(GLUT_BITMAP_9_BY_15, ord('z'))

        glColor3f(1.0, 0.0, 0.0)
        glBegin(GL_QUADS)
        glVertex3f(0, 0, 0)
        glVertex3f(1, 0, 0)
        glVertex3f(1, 1, 0)
        glVertex3f(0, 1, 0)
        glEnd()
        glColor3f(0.0, 1.0, 0.0)
        glBegin(GL_QUADS)
        glVertex3f(0, 0, 0)
        glVertex3f(0, 0, 1)
        glVertex3f(0, 1, 1)
        glVertex3f(0, 1, 0)
        glEnd()
        glColor3f(0.0, 0.0, 1.0)
        glBegin(GL_QUADS)
        glVertex3f(0, 0, 0)
        glVertex3f(1, 0, 0)
        glVertex3f(1, 0, 1)
        glVertex3f(0, 0, 1)
        glEnd()

        glEnable(GL_LIGHTING)


    def InitGL(self):
        glLightfv(GL_LIGHT0, GL_DIFFUSE,  (0.8, 0.8, 0.8, 1.0))
        glLightfv(GL_LIGHT0, GL_AMBIENT,  (0.2, 0.2, 0.2, 1.0))
        glLightfv(GL_LIGHT0, GL_POSITION, (1.0, 1.0, 1.0, 0.0))
        glEnable(GL_LIGHT0)

        glShadeModel(GL_SMOOTH)
        glEnable(GL_LIGHTING)
        glEnable(GL_DEPTH_TEST)
        glClearColor(0.0, 0.0, 0.0, 1.0)
        glClearDepth(1.0)

        self.Resize()


class ToolPanel(wx.Panel):
    def __init__(self, parent, canvas, *args, **kwargs):
        wx.Panel.__init__(self, parent, *args, **kwargs)
        self.canvas = canvas

        self.button1 = wx.Button(self, label="TEXT 1")
        self.button2 = wx.Button(self, label="Rotate")
        self.check1 = wx.CheckBox(self, label="Show Axes")
        self.Bind(wx.EVT_CHECKBOX, self.Check1)
        self.Bind(wx.EVT_BUTTON, self.Button2_Evt, self.button2)

        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.button1, flag=wx.BOTTOM, border=5)
        self.sizer.Add(self.button2, flag=wx.BOTTOM, border=5)
        self.sizer.Add(self.check1)

        self.border = wx.BoxSizer()
        self.border.Add(self.sizer, flag=wx.ALL | wx.EXPAND, border=5)

        self.SetSizerAndFit(self.border)

    def Button2_Evt(self, event):
        for i in range(5000):
            X, Y = self.canvas.GetPosition()
            self.canvas.alpha += (X - self.canvas.oldX) * 0.5
            self.canvas.beta += (Y - self.canvas.oldY) * 0.5

            self.canvas.ChangeView()
            self.canvas.oldX, self.canvas.oldY = X, Y
            self.canvas.OnDraw()


    def Check1(self, e):
        self.canvas.Axes(e.Checked())
        self.canvas.OnDraw()

class MainWin(wx.Frame):
    def __init__(self, *args, **kwargs):
        wx.Frame.__init__(self, title='OpenGL', *args, **kwargs)

        self.canvas = myGLCanvas(self, size=(640, 480))
        self.panel = ToolPanel(self, canvas=self.canvas)

        self.sizer = wx.BoxSizer()
        self.sizer.Add(self.canvas, 1, wx.EXPAND)
        self.sizer.Add(self.panel, 0, wx.EXPAND)
        self.SetSizerAndFit(self.sizer)

        self.Show() 


app = wx.App(False)
main_win = MainWin(None)
app.MainLoop()

Answer 1

UHM ... No importa que las coordinas predeterminadas comiencen en 0, 0. lo que significa que, dado que estaba usando únicamente la multiplicación para actualizar las coordinas, se mantuvieron establecidos en cero. Agregué +1 a cada eje y ahora estoy en el negocio.